An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Elenilson G. Alves Filho; Lorena Mara A. Silva; Thamires O. Lima; Paulo R.V. Ribeiro; Cristine S. Vidal; Erika S.S. Carvalho; Janice I. Druzian; Aline T.B. Marques; Kirley M. Canuto
acidity; chemical composition; chemometrics; flavonoids; food chemistry; galacturonic acid; grapes; maceration; mass spectrometry; metabolomics; nuclear magnetic resonance spectroscopy; proanthocyanidins; river valleys; ultra-performance liquid chromatography; Brazil
Abstract:
... Touriga Nacional is a well-adapted Portuguese grape variety in São Francisco River Valley (northeastern Brazil). Nevertheless, it has only been indicated to short-term consumption because of the lack of chemical stability, which is attributed to low grape acidity and incomplete phenolic maturity. Therefore, we used Ultra-Performance Liquid Chromatography coupled High-resolution Mass Spectrometry, ...
Patricia Cedraz Padua; Priyeshu Srivastava; Ana Paula de Martini; Daniel P.V. Alves; Victor Schneider Gabel; Paulo Alves de Lima Ferreira; Luigi Jovane
coasts; ecosystems; environment; estuaries; habitats; human health; land use; pollution; population growth; sedimentation rate; sediments; sewage; Brazil
Abstract:
... Over the past two centuries, coastal and estuarine areas have experienced environmental stress due to rapid population growth, leading to higher demand, overexploitation, habitat transformation, and pollution, which have severe consequences on the overall ecosystem and human health. This work aims to understand historical perspectives of such environmental stress in a coastal area of São Sebastião ...
Paulo Victor M. Boratto; Mateus Sá M. Serafim; Amanda Stéphanie A. Witt; Ana Paula C. Crispim; Bruna Luiza de Azevedo; Gabriel Augusto P. de Souza; Isabella Luiza M. de Aquino; Talita B. Machado; Victória F. Queiroz; Rodrigo A. L. Rodrigues; Ivan Bergier; Juliana Reis Cortines; Savio Torres de Farias; Raíssa Nunes dos Santos; Fabrício Souza Campos; Ana Cláudia Franco; Jônatas S. Abrahão
... Almost two decades after the isolation of the first amoebal giant viruses, indubitably the discovery of these entities has deeply affected the current scientific knowledge on the virosphere. Much has been uncovered since then: viruses can now acknowledge complex genomes and huge particle sizes, integrating remarkable evolutionary relationships that date as early as the emergence of life on the pla ...
Heterodera glycines; cultivars; feeds; food security; foods; human population; nutrient content; quantitative traits; soybeans; Argentina; Brazil; Canada; China
Abstract:
... Plant pathogens greatly impact food security of the ever-growing human population. Breeding resistant crops is one of the most sustainable strategies to overcome the negative effects of these biotic stressors. In order to efficiently breed for resistant plants, the specific plant–pathogen interactions should be understood. Soybean is a short-day legume that is a staple in human food and animal fee ...
altitude; case studies; comparative study; geodesy; rivers; spatial data; watersheds; Brazil
Abstract:
... Digital elevation models (DEMs) provide important support to research since these data are freely available for almost all areas of the terrestrial surface. Thus, it is important to assess their accuracy for correct applicability regarding the correct use scale. Therefore, this paper aims to assess the vertical accuracy of ALOS PALSAR, GMTED2010, SRTM, and Topodata DEMs according to the Brazilian ...
... Mud/debris flows are among the most challenging gravity-driven flows in environmental and geophysical processes. Natural muddy slurries and debris are solid-laden fluids where the density of the mixture can be more than twice or three times the water density and, hence, the bulk solid phase can represent 40–80% of the flow column volume. Furthermore, these unsteady flows usually occur along steep ...
... Paratransgenesis consists of genetically engineering an insect symbiont to control vector-borne diseases. Biosafety assessments are a prerequisite for the use of genetically modified organisms (GMOs). Assessments rely on the measurement of the possible impacts of GMOs on different organisms, including beneficial organisms, such as pollinators. The bacterium Serratia AS1 has been genetically modifi ...
Dreissenidae; coasts; cold tolerance; estuaries; genes; humans; phylogeny; Brazil; Caribbean; Eurasia; Florida; Gulf of Mexico; Northeastern United States; Venezuela
Abstract:
... Mytilopsis leucophaeata is an estuarine bivalve native from the Gulf of Mexico and possibly part of the eastern USA, which invaded many regions around the globe. Despite the previous discovery that two genetic lineages of this species exist, one comprising the northeastern USA and Eurasia and another having invaded South America, there were no genetic data about specimens from native areas. We rev ...
Cicadellidae; new combination; new genus; new species; Brazil; Colombia; Ecuador; French Guiana; Peru
Abstract:
... A new genus, Zanelopona, is described that is closely related to Hecalapona DeLong and Freytag. Included in the genus are four species previously described in either Hecalapona or Gypona. They are Zanelopona summita (DeLong and Kolbe).new combination, Z. supina (DeLong and Freytag) new combination, Z. antlerita (DeLong and Kolbe) new combination, and Z. huella (DeLong and Freytag) new combination; ...
Masdevallia; new species; taxonomic keys; Amazonia; Brazil
Abstract:
... Masdevallia britoi, a new species in Masdevallia sect. Minutae, is described and illustrated from the central Amazon in Brazil. It is similar to M. wendlaniana but differs by shorter sepals that are internally white, shorter oblong petals with a delicate tooth near the middle, shorter lip with deltoid marginal folds near the middle and three-denticulate apex, and shorter ovary. The new species gro ...
Colubridae; adults; caatinga; color; ecoregions; eggs; grasses; herpetology; new species; phylogeny; semiarid zones; sulfur; Brazil
Abstract:
... We describe a new species of Leptophis from the Caatinga ecoregion encompassing the semi-arid region of Brazil. Phylogenetic analysis of 16S rDNA sequences indicate that the new species is nested deep within the L. ahaetulla complex. The new species differs from all other congeners in the following unique character combination: two dorsolateral Light Emerald Green (142) to Robin's Egg Blue (161) s ...
Anura; adults; altitude; caatinga; cytochrome b; genes; genetic variation; herpetology; mitochondria; new species; rhodopsin; tadpoles; vocalization; Brazil
Abstract:
... The genus Proceratophrys currently comprises 40 species, of which five are distributed within the Caatinga domain and associated phytophysiognomies along northeastern Brazil. During field surveys at high altitudinal sites in Boqueirão da Onça region, northern Bahia state, we collected individuals of Proceratophrys that could not be assigned to any species currently known to occur within the Caatin ...
Borrelia burgdorferi; Ixodes; Oligoryzomys; lungs; phylogeny; ticks; Brazil; North America
Abstract:
... Borrelia burgdorferi sensu lato (Bbsl) spirochetes thrive in sylvatic transmission cycles infecting vertebrates and their ticks. Rodents and ticks of the genus Ixodes are important hosts of these spirochetes globally. Although evidence suggests that Borrelia burgdorferi sensu stricto does not exist in South America, genospecies of the group (Bbsl) can be found in this region but have been poorly c ...
... Pythiosis is an endemic disease in northeastern Brazil and we now report the epidemiological, clinical and pathological findings in a retrospective study of naturally occurring cases in domestic animals. From January 1985 to December 2020, the Laboratory of Animal Pathology of the Federal University of Campina Grande examined 13,542 tissue samples from necropsies and biopsies. Among these samples, ...
Eduardo V. Trumper; Arianne J. Cease; María Marta Cigliano; Fernando Copa Bazán; Carlos E. Lange; Héctor E. Medina; Rick P. Overson; Clara Therville; Martina E. Pocco; Cyril Piou; Gustavo Zagaglia; David Hunter
... In the first half of the twentieth century, the South American Locust (SAL), Schistocerca cancellata (Serville, 1838), was a major pest of agriculture in Argentina, Bolivia, Paraguay, Uruguay, and Brazil. From 1954–2014, a preventive management program appeared to limit SAL populations, with only small- to moderate-scale treatments required, limited to outbreak areas in northwest Argentina. Howeve ...
Maria Auxiliadora Lemos Barros; Carliane Rebeca Coelho Da Silva; Liziane Maria De Lima; Francisco José Correia Farias; Gilvan Alves Ramos; Roseane Cavalcanti Dos Santos
agroecology; cultivars; economic impact; industry; lint cotton; markets; polyesters; Brazil
Abstract:
... Cotton is the main natural fiber grown all over the world. Despite the wide economic importance, cotton faces a strong competition with polyester and other synthetic fibers. This competition induced producers, industry, and scientists to seek for other competitive alternatives to minimize the heavy economic effect on the natural fiber market. As a result, the adoption of robust cultivars and techn ...
Deivys Leandro Portuondo; Alexander Batista-Duharte; Constanza Cardenas; Carlos S. de Oliveira; Júlio César Borges; Damiana Téllez-Martínez; Paula Andrea Santana; Adriana Gauna; Luis Mercado; Bruna Mateus de Castilho; Paulo Costa; Fanny Guzmán; Iracilda Zeppone Carlos
... Sporotrichosis is a cosmopolitan mycosis caused by pathogenic species of Sporothrix genus, that in Brazil is often acquired by zoonotic transmission involved infected cats with S. brasiliensis. Previous studies showed that the Sporothrix spp. recombinant enolase (rSsEno), a multifunctional protein with immunogenic properties, could be a promising target for vaccination against sporotrichosis in ca ...
... Cases of weed resistant to herbicides have changed the dynamics of agricultural areas in Brazil, and in recent years, Erigeron species have caused major problems to farmers in the country, mainly in relation to the ineffectiveness of herbicide treatments used. The objective of this study was to confirm the cross-resistance to ALS inhibitors in populations of Erigeron sumatrensis as well as to inve ...
Camille A. Rocha; Elissandra V. Marques; Rafael P. dos Santos; Íthala S. de Santiago; Cássia L. A. Cavalcante; Demostenis R. Cassiano; Jefferson P. Ribeiro; Bruno V. Bertoncini; Juvêncio S. Nobre; João V. B. Freitas; Antonio G. Ferreira; Rivelino M. Cavalcante
COVID-19 infection; Severe acute respiratory syndrome coronavirus 2; air quality; fossil fuels; pandemic; pollution; research; solar radiation; temperature; trade; traffic; troposphere; viruses; Brazil
Abstract:
... The year 2020 was atypical due to the pandemic caused by the SARS-CoV-2 virus (COVID-19), providing a unique opportunity to understand changes in air quality due to the reduction in urban activity. Therefore, the aim of the present study was to perform an integrated evaluation on the influence of the effects of the 2020 pandemic on air quality in the city of Fortaleza, investigating levels of PM₂. ...
Grazyella Massako Yoshida; Carlos Antonio Lopes de Oliveira; Eric Costa Campos; Humberto Todesco; Filipe C. T. Araújo; Hanner Mahmud Karin; Aline M. S. O. Zardin; Jailton S. Bezerra Júnior; Luiz Alexandre Filho; Lauro Vargas; Ricardo Pereira Ribeiro
... Variance components and heritabilities for daily weight gain (DWG) were estimated for Nile tilapia farmed in cages across nine generations (G1–G9) of selection in a breeding program in Brazil. DWG was measured in 16,272 accumulated tagged animals representing 535 full‐ and half‐sib families of Nile tilapia under cage farming. The additive genetic variance showed a slight variation (0.051–0.066), a ...
... The emerging-market banking sector plays a significant role in modern-day banking sector stability. In this study, we have used the dynamic conditional correlation (DCC) version of the Generalised autoregressive conditional heteroscedasticity (GARCH) model to estimate the correlation among Emerging Markets (BANKSEK), Latin America (BANKSLA), Brazil, Russia, India, and China (BRIC) (BANKSBC), Portu ...
... Recently diverged species may hybridize in their contact zones if complete reproductive isolation has not yet emerged. Petunia inflata and P. interior are closely related species with a narrow geographic distribution in Argentina and southern Brazil. They share morphological features, genetic markers, pollinators, and occupy a transitional area between the Pampa grasslands and the Brazilian Atlant ...
consumer behavior; data collection; emotions; factor analysis; food choices; nutrient content; prices; product development; questionnaires; surveys; Brazil
Abstract:
... The Food Choice Questionnaire (FCQ) was applied to assess the motivations for daily food choices and associated factors in a Brazilian sample. Data were collected from January to July 2019 from 525 individuals over 18 years old recruited face-to-face in different places (e.g., university, public squares, health posts), using a convenient, intentional, and reasoned sampling. In addition to the FCQ, ...
Benjamin M. Torke; Domingos Cardoso; Hsuan Chang; Shi-Jin Li; Miao Niu; R. Toby Pennington; Charles H. Stirton; Wei-Bin Xu; Charles E. Zartman; Kuo-Fang Chung
... The papilionoid legume genus Ormosia (Fabaceae) comprises about 150 species of trees and exhibits a striking disjunct geographical distribution between the New World- and Asian and Australasian wet tropics and subtropics. Modern classifications of Ormosia are not grounded on a well-substantiated phylogenetic hypothesis and have been limited to just portions of the geographical range of the genus. ...
absorption; decision making; energy; hybrids; models; nonrenewable resources; risk analysis; solar collectors; wind; Brazil
Abstract:
... This work presents a decision-making method based on a multiobjective optimization model that integrates renewable and nonrenewable energy equipment and considers environmental and financial combined gains. Parametric studies optimize the system for other energy tariffs, and an investment risk analysis provides additional information about the systems identified by the decision-making method and i ...
Sébastien Wouters; Michel Crucifix; Matthias Sinnesael; Anne-Christine Da Silva; Christian Zeeden; Miroslav Zivanovic; Frédéric Boulvain; Xavier Devleeschouwer
algorithms; climate; sedimentation rate; time series analysis; Brazil
Abstract:
... Sedimentary rocks can record signals produced by highly complex processes. These signals are generated by a progressive deposition of sediments which can be affected, mainly through the climate system, by regular astronomical cycles (i.e. Milankovitch cycles), and by irregular oscillations like the El Niño-Southern Oscillation. Also, usually through biological, chemical and/or physical post-deposi ...
Joeliton dos Santos Cavalcante; Cayo Antônio Soares de Almeida; Milan Avila Clasen; Emerson Lucena da Silva; Luciana Curtolo de Barros; Aline Diogo Marinho; Bruno Cesar Rossini; Celso Luís Marino; Paulo Costa Carvalho; Roberta Jeane Bezerra Jorge; Lucilene Delazari dos Santos
... Bothrops spp. is responsible for about 70% of snakebites in Brazil, causing a diverse and complex pathophysiological condition. Bothrops leucurus is the main species of medical relevance found in the Atlantic coast in the Brazilian Northeast region. The pathophysiological effects involved B. leucurus snakebite as well as the organism's reaction in response to this envenoming, it has not been explo ...
environmental protection; estuaries; marine pollution; microplastics; sediments; Brazil
Abstract:
... Here we present the first assessment of microplastic (1–5 mm) abundance in drift line sediments from nineteen sandy beaches at the Paranaguá Estuarine Complex, a subtropical estuarine system from South Brazil. This estuarine system harbors Brazil's second-largest grain port, the Guaraqueçaba Environmental Protection Area, and a RAMSAR site. Sediment samples were washed through a 5 and 1 mm mesh si ...
X-radiation; forensic sciences; markets; provenance; public health; Brazil; Italy
Abstract:
... The market of falsified or sub-standard medical products is a global scale phenomenon. This issue affects a wide range of medications, including life-saving medical products. In high-income countries the most falsified products are those defined “lifestyle”, which include foremost anabolic steroids and phosphodiesterase 5 inhibitors. The spread of these products in the last years has been possible ...
Paspalum notatum; biomass; case studies; ecosystems; evapotranspiration; grasses; growth models; leaf area index; leaves; model validation; public health; soil water content; time series analysis; urban forestry; vegetation; Brazil
Abstract:
... Urban green spaces (UGS) positively impact the population, providing essential ecosystem services and improving public health. Urban vegetation management needs to optimize mowing process costs and reducing impacts on the natural ecosystem. Thus, we implemented a general grass growth model suitable for UGS management in tropical areas, focused on lawns, public parks and squares, roadsides, and aro ...
Thammy E. Mottin; Roberto Iannuzzi; Fernando F. Vesely; Isabel P. Montañez; Neil Griffis; Rafael E. Canata; Leonardo M. Barão; Deise M. da Silveira; Aurora M. Garcia
... The rooted nature of vegetation allows for individual plants or entire communities to be buried in life position under exceptional geological conditions, thereby preserving their ecology and spatial distribution in the stratigraphic record. Upright lycopsids are not uncommon within paleoequatorial Carboniferous coal-bearing deposits, but they are rare in mid- to high-paleolatitude Gondwana, where ...
Balistidae; Coryphaenidae; Elasmobranchii; coastal zone management; coasts; collaborative management; conservation status; continental shelf; stakeholders; threatened species; Atlantic Ocean; Brazil
Abstract:
... Brazil is currently facing one of the worst environmental crises in history. The over-exploitation of natural resources, unrestrained expansion of fisheries, and mostly ineffective conservation policies impose great difficulty in regulating and supervising fishing activities, whether commercial or recreational. Unreported and unregulated recreational fisheries are largely carried out along the Bra ...
Piper nigrum; black pepper; chemometrics; chloroform; condiments; discriminant analysis; food composition; metabolites; metabolomics; methanol; nuclear magnetic resonance spectroscopy; principal component analysis; provenance; quality control; ultrasonic treatment; Brazil; Sri Lanka; Vietnam
Abstract:
... Black pepper (Piper nigrum L.), known as the “king of spices”, is the most consumed spice and it is widely used as a food condiment due to its organoleptic properties. In this study, proton nuclear magnetic resonance (¹H NMR) spectroscopy combined with chemometrics was employed for the first time for the discrimination of black pepper samples based on their geographical origin (Brazil, Vietnam, an ...
... Fermentation of cocoa is a key process to obtain aromatic chocolate products from raw cocoa beans. Hitherto, the levels of fermentation in cocoa are determined using destructive techniques, for example by a cut-test to manually observe the colour inside the beans, or by quantifying ammonia nitrogen (NH₃) in the cocoa powder. In this paper, we present the use of Terahertz hyperspectral imaging as a ...
agricultural economics; case studies; models; soybeans; Argentina; Brazil
Abstract:
... The past forty years have witnessed a rapid expansion of grain and oilseed production in the southern hemisphere, particularly in South America. The growth of southern hemisphere production is significant, not only because it has increased supplies to meet growing world food needs but also because it has effectively shortened the global crop growing cycle from twelve months to six months. In this ...
computer software; cost effectiveness; decision making; hydrology; land use; rivers; water quality; water security; water shortages; water treatment; watersheds; Brazil
Abstract:
... How and when to upscale and finance nature-based solutions in watersheds in order to improve downstream urban water security is a global concern. In this paper we address such challenge by providing a novel method for planning the expansion of a chosen set of nature-based solutions that couples optimization of sequential decision-making, hydrology modelling and hydroeconomics in a single modeling ...
... Pollinator-friendly plants are often a necessary component of the management of urban ecosystem that aim to reduce the impact of the artificial urban matrix on natural pollinator populations. Nectarivorous bats are neglected components of the urban pollinator community and there is a paucity of assessments on pollinator-friendly plants that may provide urban bats with reliable, year-long resources ...
Guilherme Lobato Menezes; José Augusto Gomes Azevêdo; Sebastião de Campos Valadares Filho; Alan Figueiredo de Oliveira; Fabyano Fonseca e Silva; Frederico Patrus Ananias de Assis Pires; Maria Izabel Batista Pereira; Lúcio Carlos Gonçalves; Ana Luiza da Costa Cruz Borges; Diogo Gonzaga Jayme
Nellore; average daily gain; beef cattle; body weight; computer software; dry matter intake; equations; feedlots; herds; model validation; prediction; Brazil
Abstract:
... This study aimed to create an equation to predict the dry matter intake (DMI) of Nellore cattle using intake data from Azevedo et al. (2016) and intake data from animals raised in commercial feedlots in Brazil. This equation will then be compared with other equations already published. A correlation analysis between performance variables and DMI was performed. The metabolic body weight (MBW), aver ...
Tenuipalpus; Trichilia; Trombidiformes; acarology; mites; new species; Brazil
Abstract:
... A new species of flat mite (Acari: Tenuipalpidae), Tenuipalpus bauchanisp. nov., collected on Trichilia casaretti C. de Candolle and T. elegans A. Juss (Meliaceae), is described from the State of São Paulo, Brazil. A key to the Brazilian species of Tenuipalpus based on females is provided. ...
Ralph Eric Thijl Vanstreels; Carolina Clares dos Anjos; Hassan Jerdy Leandro; Andréa de Moraes Carvalho; Allan Poltronieri Santos; Leandro Egert; Renata Hurtado; Eulogio Carlos Queiróz de Carvalho; Érika Martins Braga; Karin Kirchgatter
... Haemoproteids (Haemosporida, Haemoproteidae) are a diverse group of avian blood parasites that are transmitted by hematophagous dipterans. In this study, we describe Haemoproteus pulcher sp. nov. from a Red-legged Seriema (Cariama cristata) in southeast Brazil. Analysis of the mitochondrial cytb gene indicates this parasite is closely related to Haemoproteus catharti (from Turkey Vulture, Catharte ...
... Marine plastic debris provides a significant surface area for potential colonization by planktonic and benthic harmful microalgae and for the adsorption of their toxins. Furthermore, floating plastics may substantially expand the substrate area available for benthic algae in the ocean, intensifying the transfer of potent toxins through pelagic food webs. In this study, we quantify the available su ...
Serpentes; evolution; geographical distribution; natural history; new species; ovipary; oviposition; rivers; snakes; sympatry; topology; Amazonia; Brazil
Abstract:
... We describe a new watersnake species of the genus Helicops from the left bank of the upper Madeira River, southwestern Amazonia, Brazil. Due to its spotted dorsal pattern, it resembles the sympatric species H. hagmanni, H. leopardinus, and H. polylepis, but a combination of features including, scale counts, prominence of dorsal keels, and hemipenial morphology allows its unequivocal recognition. T ...
acarology; ecosystems; habitat fragmentation; new combination; new species; plant litter; rain forests; Brazil
Abstract:
... A new species of Cunaxidae, namely Cunaxa bagualensis Wurlitzer & Ferla sp. nov., is described and illustrated based on females and males collected in soil and leaf litter in the Atlantic rainforest biome in a rural forest fragment in Mormaço county, Rio Grande do Sul state, Brazil. Additionally, Armascirus livingstoni Laniecka & Kazmierski, 2021 is transferred to Dactyloscirus based on some obser ...
Cunaxidae; acarology; new species; Amazonia; Brazil
Abstract:
... We describe adults of a new species, namely Lupaeus brasiliensis Wurlitzer & Rocha sp. nov., and report the first occurrence of Pulaeus krama (Chaudhri, 1977) from the Brazilian Amazon Rainforest. ...
Croton; conservation status; ecosystems; herbaria; indigenous species; new species; phylogeny; plant taxonomy; taxonomic keys; trichomes; Brazil
Abstract:
... Croton guaritensis, sp. nov. is here described, illustrated, and classified based on morphological and molecular data. The new species is restricted to the Pampa biome where it grows around rocky outcrops. Examination of the morphology from herbarium collections and field observations, as well as evidence from molecular analysis, indicate that Croton guaritensis belongs to Croton section Barhamia ...
Echinostoma; adults; body length; cercariae; chickens; conspecificity; data collection; new species; parasitology; phylogeny; Brazil
Abstract:
... Although Echinostoma robustum (currently a synonym of E. miyagawai) was reported in the Americas based on molecular data, morphological support on adult parasites is still required. Herein, a new species of Echinostoma is described based on worms found in a chicken from Brazil. Molecular phylogenetic analyses based on 28S (1063 bp), ITS (947 bp) and Nad-1 (442 bp) datasets reveal the inclusion of ...
Lorena Freitas Souza Tavares-Costa; Gabriel Lima Rebêlo; Maria Isabel Müller; Ronald Ferreira Jesus; Bianca Nandyara; Leandro Mauricio Oliveira Silva; Carlos Eduardo Costa-Campos; Jeannie Nascimento dos Santos; Francisco Tiago de Vasconcelos Melo
Anolis; Anura; Nematoda; Neotropics; amphibians; ecosystems; genes; inflation; integument; lungs; mitochondria; new species; parasites; parasitology; phylogeny; research; tail; Amazonia; Brazil
Abstract:
... Rhabdias Stiles and Hassal, 1905 comprises approximately 90 species of parasitic lung nematodes of amphibians and reptiles that have a wide distribution, with 21 species occurring in the Neotropics. In the present study, we describe Rhabdias waiapi n. sp. found parasitizing the lungs of the anuran species Pristimantis chiastonotus from the Amazon Biome in the Amapá State, Northern Brazil. The new ...
Cricetidae; genomics; mammalogy; marshes; morphometry; new species; phenotype; rats; Bolivia; Brazil; Peru
Abstract:
... Marsh rats of the genus Holochilus are broadly distributed and inhabit several distinct environments throughout South America. As an enigmatic group with a somewhat uncertain taxonomy, the composition and names of taxa have shifted throughout history, including the boundaries of Holochilus sciureus, a species formerly distributed in the lowlands of the Guianas, Peru, Bolivia, and northern, central ...
Letizia J. Migliore; Gari V. Ccana-Ccapatinta; Gianfranco Curletti; Sonia A. Casari; Gabriel Biffi; Jennyfer A. A. Mejía; Jean C. A. S. Carvalho; Jairo K. Bastos
Agrilus; Apis mellifera; Dalbergia ecastaphyllum; adults; chemical ecology; income; new species; parasitic insects; propolis; Brazil
Abstract:
... Red propolis is a substance produced by bees by mixing resins from plants with wax, oils, and other secretions to protect the hive against natural enemies. Dalbergia ecastaphyllum (L.) Taub. (Fabaceae) is the primary botanical source of the Brazilian red propolis, where bees Apis mellifera L. collect a reddish resin from the stems to produce propolis. This species occurs in coastal dune and mangro ...
João Lucas Rocha; Ana Carolina da Silveira Pereira; Alcinéa Malzete Correia; Lucas Dupont Giumbelli; Gustavo Brunetto; Arcângelo Loss; Luis Alejandro Vinatea Arana
Litopenaeus vannamei; adsorption; aluminum; aquaculture; bioremediation; calcium; case studies; farms; magnesium; nitrogen; nutrient content; pH; phosphorus; potassium; probiotics; regression analysis; sandy loam soils; shrimp; soil chemistry; soil texture; t-test; total nitrogen; total organic carbon; total phosphorus; wastes; Brazil
Abstract:
... Improvements in the sampling of pond soil and bioremediation techniques can increase the efficiency of soil treatments by emphasizing zones of greater nutrient deposition. This work evaluated the relative deposition of nutrients and their statistical correlation in pond soils in intensive and extensive Litopenaeus vannamei farming. Soil samples were collected (n: 150) in six ponds at two marine sh ...
Eucalyptus; Pseudoscorpiones; fauna; hydroelectric power; karsts; limestone; new species; pastures; Brazil
Abstract:
... A new pseudoscorpion species of the genus Pseudochthonius Balzan, 1892 is described from a limestone cave of the Bambuí geomorphological group in southeast Brazil. This new species is only known from a single cave in a karst region with more than two hundred caves. It may be threatened by pasture, gas extraction, large scale exotic Eucalyptus plantations, and small hydroelectric power plants. The ...
Ceratomyxa; Pimelodidae; basins; catfish; ecosystems; electron microscopy; gall bladder; new species; parasitology; phylogeny; ribosomal DNA; rivers; Brazil
Abstract:
... Parasites are important organisms for the health of ecosystems. While the Amazon Basin is home to a great diversity of ichthyofauna, our knowledge of myxozoan diversity in the biome remains relatively limited. The present study describes a new myxozoan species, Ceratomyxa mandii n. sp., parasitizing the gallbladder of the Amazonian catfish Pimelodina flavipinnis (Pimelodidae) from the Solimões Riv ...
Saccharum; crop models; nitrogen; nitrogen fixation; sugarcane; Brazil
Abstract:
... There are growing evidence that nitrogen (N) recommendation based on the expected yield concept developed by Stanford in 1973 lacks in agronomic principles, despite it widespread use worldwide. In Brazil, the main sugarcane producer worldwide, for example, a fixed N factor of 1 kg N per Mg⁻¹ of stalk is used. However, literature demonstrates that sugarcane responsiveness to N is much higher in san ...
agricultural landscapes; biodiversity; case studies; ecosystem services; ecosystems; forest conservation; interviews; issues and policy; models; sustainability science and engineering; Brazil
Abstract:
... The ecosystem service framework has been instrumental in navigating local to global sustainability issues. Yet as ecosystem services (ES) focus on nature’s positive contributions to people, some have argued that ‘ecosystem disservices’ (EDS), or nature’s negative contributions, should also be taken into account to better orient sustainability policies. However, joint ES and EDS assessments remain ...
Fernando Sartori Pereira; Lucas Antonio Stempkowski; Thor Vinícius Martins Fajardo; Antonio Nhani Júnior; Douglas Lau; Talita Bernardon Mar; Samara Campos do Nascimento; Amauri Bogo; Ricardo Trezzi Casa; Fabio Nascimento da Silva
Tenuivirus; leaves; new species; nucleotides; viral genome; virology; viruses; wheat; Brazil
Abstract:
... Since 1948, pale yellow wheat spike have been reported in southern Brazil. This symptom was associated with tenuiviruses due to the observation of cytoplasmic inclusions constituted by a mass of filamentous particles (7–10 nm in diameter) with indeterminate length, identical to those found in “leaf dip” preparations. Such symptoms are still seen in wheat crops; however, there is a lack of informat ...
Rafaella Gouveia Mendes; Renato Farias do Valle Junior; Maytê Maria Abreu Pires de Melo Silva; Luís Filipe Sanches Fernandes; António Carlos Pinheiro Fernandes; Teresa Cristina Tarlé Pissarra; Marília Carvalho de Melo; Carlos Alberto Valera; Fernando António Leal Pacheco
aluminum; dissolved calcium; hydrochemistry; manganese; models; people; phosphorus; redox potential; reflectance; river water; rivers; sand; surface water; water pollution; Brazil
Abstract:
... This study investigated the collapse of B1 mine-tailings dam that occurred in 25 January 2019 and severely affected the Brumadinho region (Minas Gerais state, Brazil) socially, economically and environmentally. As regards water resources, the event impacted the Paraopeba River in the first 155.3 km counted from the dam site, meaning nearly half the main water course downstream of B1. In the impact ...
antimony; cellulose; clinical trials; cutaneous leishmaniasis; Brazil
Abstract:
... The treatment of cutaneous leishmaniasis (CL) in Brazil using pentavalent antimony (Sbᵛ) is associated with a high failure rate and long time to heal. Moreover, standard Sbᵛ treatment cures only 50–60% of the cases. In this pilot clinical trial, we evaluated the topical use of bacterial cellulose (BC) bio-curatives + Sbᵛ in the treatment of CL caused by L. braziliensis, in Bahia, Brazil. A total o ...
... Human cercarial dermatitis (HCD) caused by avian schistosomes is an emerging health issue in different parts of the world. Nevertheless, parasite diversity, life cycle, and involvement in HCD remain poorly known or neglected in South America. Herein, we reported data obtained during a long-term malacological survey carried out in Pampulha Reservoir, an urban eutrophic waterbody from Brazil between ...
gastronomy; health promotion; pasta; qualitative analysis; sugars; validity; Brazil
Abstract:
... Cooking is encouraged as a strategy for health promotion in many countries, including Brazil. Culinary recipes are important aids for individuals who cook, but methods for the assessment of their healthiness are incipient. This study's aim was to develop a qualitative framework to assess culinary recipes' healthiness based on both editions of the Dietary Guidelines for the Brazilian Population. Fr ...
Ana Paula Mançano; Carlos Alberto de Oliveira; Luiz Augusto Cauz-Santos; Denise Dias da Cruz; Gabriel Dequigiovanni; Maria Imaculada Zucchi; Maria Lucia Carneiro Vieira; Rachel Fatima Gagliardi
Chrysobalanus icaco; DNA; coasts; genetic variation; leaves; medicinal plants; peptidase K; phenol; population structure; recalcitrant species; Brazil
Abstract:
... The evaluation of genetic variability is essential to support the conservation of economically important plant species such as Chrysobalanus icaco, a medicinal plant. In Brazil, this species occurs in endangered sandbank areas along the Atlantic coast raising considerable concern over C. icaco diversity conservation. Therefore, research in population structure is needed and can be carried out usin ...
Wanderson de Sousa Mendes; José A.M. Demattê; Maria Eduarda B. de Resende; Luiz Fernando Chimelo Ruiz; Danilo César de Mello; Jorge Tadeu Fim Rosas; Nélida Elizabet Quiñonez Silvero; Luís Reynaldo Ferracciú Alleoni; Marina Colzato; Nícolas Augusto Rosin; Lucas Rabelo Campos
Landsat; chromium; human health; iron; nickel; remote sensing; soil pollution; time series analysis; zinc; Brazil
Abstract:
... Soil contamination by potentially toxic elements (PTEs) is one of the greatest threats to environmental degradation. Knowing where PTEs accumulated in soil can mitigate their adverse effects on plants, animals, and human health. We evaluated the potential of using long-term remote sensing images that reveal the bare soils, to detect and map PTEs in agricultural fields. In this study, 360 soil samp ...
cacti and succulents; ecological imbalance; ecosystems; extinction; forests; gneiss; granite; Brazil
Abstract:
... Coleocephalocereus pluricostatus is an endemic cactus from eastern Brazil that occurs on naked gneiss/granite inselbergs in the Atlantic Forest biome. Here we report the extinction of a population of C. pluricostatus and the rapid decline of other populations of the species in eastern Minas Gerais, Brazil due to cochineal insects, diseases and mining operations. We offer some hypotheses to explain ...
Betaarterivirus suid 1; blood serum; monitoring; piglets; porcine reproductive and respiratory syndrome; pork; respiratory tract diseases; retrospective studies; viruses; Brazil
Abstract:
... Porcine reproductive and respiratory syndrome (PRRS) is a viral disease characterized by reproductive impairment or failure in breeding animals, and a respiratory disease in pigs of any age. Brazil is the fourth largest pork producer and exporter globally, and PRRS virus (PRRSV) infection has never been reported in the country. This study aimed to investigate the status of porcine biological sampl ...
Bursera; Dacryodes; Eocene epoch; Miocene epoch; Neotropics; Oligocene epoch; Protium; Steatornis caripensis; bee pollination; bioactive properties; center of diversity; cerrado; cryptic species; dioecy; ethnobotany; germination; habitats; leaves; monoecy; new genus; new species; parthenocarpy; phylogeny; trees; wind; Amazonia; Andes region; Brazil; Caribbean; Central America; Mexico
Abstract:
... This review of Neotropical Burseraceae emphasizes developments since the last major review of the family in 2011. The Burseraceae comprise a Laurasian group (represented by Eocene fossils in the Northern Hemisphere) that originally dispersed through Central America into Amazonia. During cooling and drying events in the Oligocene, the frost-intolerant northern American progenitors were likely drive ...
Eduardo O. Marson; Cleiseano E.S. Paniagua; Oswaldo Gomes Júnior; Bárbara R. Gonçalves; Valdislaine M. Silva; Ivo A. Ricardo; Maria Clara V. M. Starling; Camila C. Amorim; Alam G. Trovó
... This work presents data regarding the occurrence and treatment of Contaminants of Emerging Concern (CECs) in Brazil in the past decade. The literature review (2011−2021) revealed the detection of 87 pharmaceutical drugs and personal care products, 58 pesticides, 8 hormones, 2 illicit drugs, caffeine and bisphenol A in distinct matrices (i.e.: wastewater, groundwater, sea water, rainwater, surface ...
Jucelino B. da Silva Junior; Vanessa S. de Carvalho; Daniele S. Sousa; Ivanice F. dos Santos; Geysa B. Brito; Antônio F.S. Queiroz; Sérgio L.C. Ferreira
chromium; cobalt; manganese; marine pollution; nickel; public water supply; risk; risk assessment; rivers; spectroscopy; toxicity; vanadium; zinc; Brazil
Abstract:
... Aquatic ecosystems provide habitats for many organisms. Historically, riverbanks have always been inhabited and exploited for subsistence and navigation. The present study evaluates the contamination and ecological risks caused by potentially toxic elements in surface sediments of the Paraguaçu River, Bahia, Brazil. Seven sediments samples were collected, and eight heavy metals were determined emp ...
Amanda C. Santos; Thácyla R. M. Leite; Mateus S. S. Cunha; Manoel G. C. Gondim Jr.; Antonio C. Lofego; Noeli J. Ferla; Gabriel L. Bizarro; Anibal R. Oliveira
... Many mite species disperse via the air. However, most methods described for the study of aerial dispersal have some limitations in the collection and/or recovery of mites that could be improved. The aim of this study was to describe a rotatory funnel-shaped collector that directs the wind to adhesive surfaces covered with a glycerin-based solution. Tests were conducted on a soccer field at UESC, I ...
Luís Romero Barbosa; Victor Hugo R. Coelho; Ana Claudia V.L. Gusmão; Lucila A. Fernandes; Bernardo B. da Silva; Carlos de O. Galvão; Nelson O.L. Caicedo; Adriano R. da Paz; Yunqing Xuan; Guillaume F. Bertrand; Davi de C. D. Melo; Suzana M.G.L. Montenegro; Sascha E. Oswald; Cristiano das N. Almeida
cloud cover; evapotranspiration; groundwater; groundwater extraction; groundwater recharge; rhizosphere; runoff; satellites; soil water storage; water storage; water table; Brazil
Abstract:
... Groundwater recharge (GWR) is one of the most challenging water fluxes to estimate, as it relies on observed data that are often limited in many developing countries. This study developed an innovative water budget method using satellite products for estimating the spatially distributed GWR at monthly and annual scales in tropical wet sedimentary regions despite cloudy conditions. The distinctive ...
agronomy; data collection; epidemiology; memory; meteorology; models; prediction; probability; public health; soil science; spatial data; sugarcane; Brazil
Abstract:
... Gaining information about detailed processes using aggregation information is a frequent challenge in research involving geospatial data, with examples in different fields of knowledge such as agronomy, soil science, meteorology, public health, epidemiology, and others. Analyses using aggregated data lead to distorted conclusions since they disregard local patterns, and such a problem has motivate ...
agronomy; farms; integrated agricultural systems; livestock; soil; space and time; sustainable development; Brazil
Abstract:
... In integrated crop-livestock systems (ICLS), crops and animals interact in space-time, generating synergistic properties. ICLS design and implementation are more complex than specialized systems design due to their multiple interactions. Hence, appropriate and innovative methods and tools are required to facilitate design of sustainable ICLS systems. We created a serious game (named SIPA game) as ...
... Eucalypt plantations in South Africa make up an important part of the local forestry industry. Recently, one-year-old nursery plants of a Eucalyptus grandis × Eucalyptus urophylla variety displayed symptoms of leaf and shoot anthracnose disease. Samples were collected from these plants and isolations were made from the disease symptoms. Isolates were identified based on their morphological charact ...
X-radiation; X-ray fluorescence spectroscopy; chemical species; cost effectiveness; detection limit; fluorescence; glass; metrology; mobile telephones; principal component analysis; standard deviation; Brazil
Abstract:
... In this work, a simple and cost-effective method was developed for Na, Mg, Al, K, Ca, Ti, V, Cr, Mn, Ni, Cu, Zn, Rb, Sr, Ba and Pb determination in glass samples employing suspension sampling and total reflection X-ray fluorescence (TXRF). The experimental conditions were optimized using multivariate approach being the optimum conditions located by Derringer's desirability function. Proposed metho ...
Escherichia coli; basins; biochemical oxygen demand; dry season; environment; laws and regulations; models; nitrate nitrogen; pollutants; rivers; statistical analysis; stream flow; total phosphorus; wastewater; water quality; watersheds; wet season; Brazil
Abstract:
... The goal of the study was to illustrate how the variation in streamflow patterns affects the magnitude of pollutants that can be loaded into the hydrography in a more straightforward manner. For that, two basins in the Doce River basin (Brazil) were evaluated in order to estimate the variation in the allowed wastewater in streamflow units (m³s⁻¹) into the hydrography without impairing the rivers' ...
bananas; carbon; carbon sinks; ecosystems; environmental sustainability; forests; land use change; macropores; micropores; soil density; soil management; soil quality; Brazil
Abstract:
... Bananas are a worldwide cultivated crop and one of the main agricultural activities in Brazil. The banana orchards cultivated in the region of São Paulo State are under native areas of the Atlantic Forest biome. The Atlantic Forest has suffered agricultural and urban pressure for many years. Banana crops require soil management and superficial vegetation removal in the first cycles. We conducted a ...
DNA barcoding; Hypnea; algology; coasts; ecotypes; haplotypes; intraspecific variation; new species; phenotype; phylogeography; physiological state; Brazil
Abstract:
... Taxonomic studies based on molecular markers led to the description of a new species, Hypnea pseudomusciformis, to accommodate three morphologically divergent species that occur on the coast of Brazil and have identical DNA barcode sequences (H. musciformis, H. nigrescens, and Hypnea valentiae). These three previous species were then identified as morphological variants of H. pseudomusciformis. La ...
Clara Mariana Gonçalves Lima; Paula Benoso; Milena Dutra Pierezan; Renata Ferreira Santana; Guilherme de Souza Hassemer; Roney Alves da Rocha; Flavia Michelon Dalla Nora; Silvani Verruck; Daniela Caetano; Jesus Simal-Gandara
adulterated products; artificial intelligence; chemical composition; chemometrics; computer vision; distillation; distilled spirits; food composition; fraud; human health; laws and regulations; quality control; risk; sensory properties; sugarcane; Brazil
Abstract:
... Sugarcane spirits (cachaça) is one of the most traditional drinks in Brazil, being the third most consumed distilled beverage in the world. Chemically, a sugarcane spirit is considered a complex product and, among the production steps, the type of distillation directly influences the chemical composition and sensory characteristics of the product. However, some substances considered undesirable ma ...
energy; sustainable development; water power; Brazil; Canada; Norway
Abstract:
... Sustainable global energy production is back-stopped by hydropower which is responsible for a significant share of the green energy produced worldwide. Hydropower, however, does not come without some environmental impacts but has worked to reduce those impacts. Here, we discuss the historical, legislative, and design configurations of hydropower facilities located in three of the world’s most impo ...
Bayesian theory; Salmonella Enteritidis; chicken meat; cold; meta-analysis; microbiological risk assessment; models; raw chicken meat; salmonellosis; serotypes; slaughterhouses; standard deviation; systematic review; uncertainty; Africa; Asia; Brazil; Europe; Latin America; North America
Abstract:
... Salmonellosis involving chicken meat is one of the most frequent foodborne diseases registered worldwide. Many studies report the prevalence of Salmonella spp. on chicken meat; however, data are limited or variable. To perform stochastic Quantitative Microbial Risk Analysis, it is essential to input reliable data to estimate the risks, and the Bayesian meta-analysis model allows incorporating the ...
... Climate change imposes risks on assets, systems and operations of enterprises in the electricity sector, whose management of climate risk is becoming increasingly important. This paper proposes a methodological structure to support the identification, analysis and assessment of climatic risks in thermoelectric power plants, integrating concepts from the IPCC (AR5) methodological structure, the ISO ...
... In Brazil, the major vector of arboviruses is Aedes aegypti, which can transmit several alpha and flaviviruses. In this work, a pacifastin protease inhibitor library was constructed and used to select mutants for Ae. aegypti larvae digestive enzymes. The library contained a total of 3.25 × 10⁵ cfu with random mutations in the reactive site (P2–P2’). The most successfully selected mutant, TiPI6, a ...
... Names of natural products (NP) are usually given depending on the species of origin, be it a plant, a marine organism or a microbial species. In some cases, names have been given with reference to people, animals, music, foods or places. Many NP refer to countries, cities or specific places such as mountains, deserts, seas and oceans. On the basis of NP names, a world tour has been imagined referr ...
... BACKGROUND: Predicting how natural and anthropogenic drivers shape different ecological indicators, such as plant populations along environmental gradients, can be a relevant tool for establishing management and conservation criteria of tropical wetlands. We aimed to assess the effects of seasonal flood disturbance, type of grasslands and topographical conditions on Croton trinitatis population di ...
Jael Soares Batistas; Wanderson Lucas Alves dos Santos; Ana Caroline Freitas Caetano de Sousa; Tiago da Silva Teófilo; Ana Carla Diógenes Suassuna Bezerra; Victor Hugo Vieira Rodrigues; José Ailton da Silva Filho; Tânia Vasconcelos Cavalcante; Kizzy Millenn de Freitas Mendonça Costa; Geysa Almeida Viana
... The main effects of trypanosomosis in Brazil are related to reproductive alterations. In this context, the present study aimed to report the occurrence of abortions in goats and sheeps in the semiarid region of Northeastern Brazil, associated with Trypanosoma vivax. Trypomastigotes forms visualized by Buffy coat technique (BCT) method in 68.7% of the goats and 50.0% of the ewes that aborted. PCR i ...
... Organic residues management (ORM) alter plant traits and soil properties by changing nutrient and carbon cycling. It is unclear how ORM (mulching, compost, and their combination) applied for 18 months creates a mechanism to promote changes in a P. pyrifolia field. Our aim was to evaluate the influence of ORM on P. pyrifolia nutritional status, plant traits, yield, and carbon sequestration in a 16- ...
João Henrique S. Barros; Fábio Martins Ayres; Emerson Dechechi Chambó; Michel Constantino; Paula Martin de Moraes; Leandro Skowronski; Sheyla T. V. Barcelos; Wellington Santos Fava; Reginaldo B. Costa
aboveground biomass; biodiversity; carbon; carbon sinks; cerrado; deciduous forests; ecosystems; indigenous species; riparian forests; savannas; tree and stand measurements; Bolivia; Brazil; Pantanal; Paraguay
Abstract:
... Pantanal, biome covering part of the territories of Brazil, Bolivia and Paraguay, is acknowledged as a region of the great biodiversity, however, the expansion of agricultural borders in its surroundings brings threats to its integrity. Field works that quantified biomass in the native vegetation of the Pantanal are rare, however, fundamental for to understand how carbon stocks are distributed in ...
Ana Carolina Oliveira de Meirelles; Katherine Fiedler Choi‐Lima; Thaís Moura Campos Vila Nova; Emygdio Leite de Araujo Monteiro‐Filho; Tito Monteiro da Cruz Lotufo
Sotalia guianensis; adults; bycatch; coasts; health status; law enforcement; marine protected areas; mark-recapture studies; models; philopatry; species abundance; survival rate; uncertainty; Brazil
Abstract:
... Guiana dolphins (Sotalia guianensis) inhabit shallow waters of the tropical western Atlantic, an area that is now mostly occupied by cities and harbours. Demographic studies have been concentrated in sheltered areas of south/south‐eastern Brazil. This study investigated site fidelity and estimated population abundance and apparent survival of Guiana dolphins in Mucuripe Embayment (ME), on the nort ...
Charadrius; ornithology; Brazil; North America; Peru
Abstract:
... The Wilson's Plover (Charadrius wilsonia) has a broad distribution, occurring in a variety of Atlantic and Pacific coastal and island habitats from North America to Peru and Brazil. This shorebird is considered “Vulnerable” in Brazil, but there is little knowledge regarding the species’ reproductive status, abundance, and distribution in South America. We conducted monthly censuses September 2011– ...
birds; body weight; cerrado; ecosystems; frugivores; fruits; lipid content; pulp; second growth; seed dispersal; seed weight; species abundance; Brazil
Abstract:
... Neutral and niche factors influence the structure of frugivory and seed dispersal networks. While the former refers to the abundance of interacting species, niche factors refer to traits that mediate interactions between species (e.g., morphology). The challenge is to unravel in which circumstances one kind of factor predominates over the other, or how much variation is explained by each factor. W ...
... The presence of weeds in the margins of strawberry crops can enhance populations of predatory mites as a measure to support conservation biological control. The aims of this study were (i) to assess the composition of the acarofauna associated with strawberries and the accompanying herbaceous plants in an organic farming system, and (ii) to evaluate the possible relationships between phytophagous ...
... The aim of this work is to report the presence of the flour mite, Acarus siro L. (Astigmatina: Acaridae), in Senador Amaral, state of Minas Gerais, Brazil. Specimens of this species were recovered from litter of a poultry house in 2018, 2019 and 2020, as confirmed by morphological and molecular identification. This is the first confirmed report of this invasive species in Brazil, so far regulated ...
... Saltwater intrusion can dramatically transform coastal ecosystems, changing vegetation and impacting wildlife and human communities who rely on these natural resources. This phenomenon is difficult to measure over large and remote areas but can be inferred from changes in the distribution of salt-tolerant vegetation, such as mangroves, observable from satellite imagery. The northern coast of Brazi ...
Fernanda Maria Rodrigues Castro; Gabrielle Maria Romeiro Lombardi; José Airton Rodrigues Nunes; Rafael Augusto da Costa Parrella; Adriano Teodoro Bruzi
... Biomass sorghum [Sorghum bicolor (L.) Moench] has unique characteristics that allow its use as a feedstock for bioenergy production. This study aimed to analyse the growth and accumulation of biomass and lignocellulosic compounds in photoperiod-sensitive biomass sorghum genotypes and to evaluate interactions with the environment at different phenological stages using the absolute and relative crop ...
... The Plant Response Potential to Fertilization (RPF) method, as it has been interpreted, may result in nutritional diagnoses with low efficiency. In this regard, this work aimed to validate the RPF criterion and determine the percent value to be considered as culm yield increase based on the accuracy of nutritional diagnoses for nutrient P in sugarcane by the CND method. The study used data collect ...
... This article analyses and compares preventive models for obesity in Spain, Argentina and Brazil through an examination of the respective measures adopted to counter it in those countries. Based on a qualitative study of the main actions carried out since 2004, the aim is to delineate the conceptual framework and reflect on the reasons for their relative effectiveness. The results show that in cont ...
biodiversity; data collection; fire detection; satellites; wildfires; Brazil; China; Pantanal
Abstract:
... Fire in Brazilian Pantanal represents a serious threat to biodiversity. The Brazilian National Institute of Spatial Research (INPE) has a program named Queimadas, which estimated from January 2020 to October 2020, a burned area in Pantanal of approximately 40,606 km2. This program also provides daily data of active fire (fires spots) from a methodology that uses MODIS (Aqua and Terra) sensor data ...
Genimar Rebouças Julião; Mariana Ayres Henrique Bragança; Patrícia Guedes Torres; Luciana Lima; Rosenilton de Araújo Neves; José Maria Silva Nobre; José Gabriel Vergara-Meza; Sérgio de Almeida Basano; Francielle Alba Moraes; Maria Arlete da Gama Baldez; Mauro Shugiro Tada; Alzemar Alves de Lima; Joana D'Arc Neves Costa; Luiz Herman Soares Gil; Alda E. F. Lobato da Cunha; Erney Plessmann Camargo; Marta Maria Geraldes Teixeira
... Recurrent outbreaks of oral infection and isolated cases characterize the new epidemiological scenario of Chagas disease (CD) in the Brazilian Amazon. Acute Chagas disease (ACD) is common in Pará and Amazonas, Northeastern and Northwestern Brazilian Amazonia. In the present study, we describe the first molecularly characterized autochthonous case of ACD in Rondônia, Southwestern Amazonia. The pati ...
João Farias de Sousa Júnior; Márcio Leonardo de Morais Nobre; Hermínio José da Rocha Neto; Lilian Silva Catenacci; Maria José dos Santos Soares; Maria Christina Sanches Muratori; Miguel Ferreira Cavalcante Filho; Larissa Maria Feitosa Gonçalves; Raizza Eveline Escórcio Pinheiro
Rhea americana; aflatoxicosis; blood; carcinogenicity; case studies; farms; feeds; histopathology; immune system; jaundice; laws and regulations; liver; metabolites; mutagenicity; necropsy; parasitology; rheas; risk; teratogenicity; Brazil
Abstract:
... Aflatoxins are mycotoxins capable of contaminating food, and can cause toxic effects, teratogenicity, mutagenicity, carcinogenicity, and immune system depression. The presence of fungi which produce this metabolite in ingredients that compose the animal feed increased the risk of the emergence of aflatoxicosis. The objective of this study was to report an aflatoxicosis outbreak in rheas (Rhea amer ...
... The insecticide fipronil, one of the main pesticides used in Brazil, is often detected in natural aquatic environments, and causes neuronal hyperexcitation by inhibiting GABAergic neurotransmission, leading to putative alterations in behaviour and development. This work sought to analyse the toxicity of formulated Regent® 800WG (80% fipronil) on development (fish embryo toxicity test, FET), morpho ...
Falco sparverius; Platynosomum; bile; birds; females; gall bladder; genes; necropsy; parasites; sympatry; veterinary parasitology; Brazil
Abstract:
... Platynosomum illiciens is a dicrocoeliid trematode from the biliary tract of warm-blooded vertebrates (felines, primates, marsupials, and birds) reported in different parts of the world. Although the veterinary relevance of platynosomosis in mammals, especially in domestic felines, has been increasingly evidenced in the scientific literature, studies involving avian disease caused by P. illiciens ...
José Ricardo Tavares de Albuquerque; Hamurábi Anizio Lins; Manoel Galdino dos Santos; Márcio Alexandre Moreira de Freitas; Fernando Sarmento de Oliveira; Almir Rogério Evangelista de Souza; Lindomar Maria da Silveira; Glauber Henrique de Sousa Nunes; Aurélio Paes Barros Júnior; Paulo Fernando de Melo Jorge Vieira
Glycine max; cultivars; genotype-environment interaction; grain yield; phenotype; soybeans; Brazil
Abstract:
... Soybean production in Brazil is concentrated in the central and southern regions of the country, although expansion is occurring toward the northeast, where semi-arid conditions are predominant. There is little information on the behavior of soybean cultivars in semiarid climates; therefore, the objective of this study was to evaluate the interaction of soybean genotypes by environment, adaptabili ...