U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

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.

PubAg

Main content area

You searched for: Subject "morphs" Remove constraint Subject: "morphs"
Start Over

Search

3,280  Search Results

« Previous | 1 - 20 of 3,280 |
Number of results to display per page

Search Results

1. Occurrence and molecular identification of nematodes from blue mackerel Scomber australasicus Cuvier in Australian waters

Author:
Md. Shafaet Hossen; Jaydipbhai Suthar; Skye Wassens; Shokoofeh Shamsi
Source:
Parasitology international 2023 v.92 pp. 102664
ISSN:
1383-5769
Subject:
morphs,   etc   ; Anisakis; Capillaria; Contracaecum; Hysterothylacium; Scomber australasicus; adults; coasts; community structure; internal transcribed spacers; mackerel; parasitology; public health;     Show all 13 Subjects
Abstract:
... This study determines the occurrence and molecular identification of nematodes from blue mackerel Scomber australasicus Cuvier (Perciformes: Scombridae), an edible fish from Australian waters. A total of 150 fish were sourced from the New South Wales and Victorian coasts. Nematodes were initially classified morphologically as 10 morphotypes belonging to the families Anisakidae (Anisakis morphotype ...
DOI:
10.1016/j.parint.2022.102664

2. High-throughput phenotyping by deep learning to include body shape in the breeding program of pacu (Piaractus mesopotamicus)

Author:
Milena V. Freitas; Celma G. Lemos; Raquel B. Ariede; John F.G. Agudelo; Rubens R.O. Neto; Carolina H.S. Borges; Vito A. Mastrochirico-Filho; Fábio Porto-Foresti; Rogério L. Iope; Fabrício M. Batista; José R.F. Brega; Diogo T. Hashimoto
Source:
Aquaculture 2023 v.562 pp. 738847
ISSN:
0044-8486
Subject:
morphs,   etc   ; Piaractus mesopotamicus; algorithms; aquaculture; computer vision; condition factor; developmental stages; fish; fish farms; genetic selection; head; heritability; models; morphometry; pelvis; phenotype; prediction; weight gain;     Show all 18 Subjects
Abstract:
... Deep learning (DL) is a cutting-edge technology that enables high-throughput phenotyping in aquaculture. The routine application of DL offers new opportunities for the genetic selection of appearance traits, especially those related to body shape. The criteria currently used for the trait selection of commercial interest, such as rapid growth and weight gain, can directly influence the animal's ap ...
DOI:
10.1016/j.aquaculture.2022.738847

3. Ab initio investigation of electronic structure and optical properties of IrSn₄

Author:
Thi Ly Mai; Vinh Hung Tran
Source:
RSC advances 2022 v.12 no.28 pp. 17882-17888
ISSN:
2046-2069
Subject:
morphs,   etc   ; measurement; optical properties; superconductivity; temperature;     Show all 5 Subjects
Abstract:
... We have examined the electronic structure and optical properties of intermetallic IrSn₄ for three polymorphic modifications, α-IrSn₄, β-IrSn₄, and γ-IrSn₄, utilizing the first-principles PAW-PBEsol-GGA and FP-LAPW-LSDA methods. The obtained electronic structure data reveal clear-cut differences between α-IrSn₄ and the remaining morphs. This observation may be used to explain the appearance of supe ...
DOI:
10.1039/d2ra01672a

4. Science Revealing Ancient Magic: Phytolith Evidence from the Early Chalcolithic Site of Isaiia (Eastern Romania)

Author:
Felix Adrian Tencariu; Claire Delhon; Diana Măriuca Vornicu; Andrei Asăndulesei; Casandra Brașoveanu; Mihaela Danu
Source:
Biology 2022 v.11 no.8 pp. -
ISSN:
2079-7737
Subject:
morphs,   etc   ; Artemisia; ceramics; clay; phytoliths; pregnancy; Romania;     Show all 7 Subjects
Abstract:
... The article presents the palaeobotanical investigations of a remarkable discovery from the Early Chalcolithic settlement of Isaiia–Balta Popii (Romania), a multi-layered site. The excavation of a dwelling brought to light a rather rare finding, meaning a medium sized ceramic vessel having deposited inside two objects of burnt clay: an anthropomorphic figurine depicting pregnancy attributes and a s ...
DOI:
10.3390/biology11081102

5. Comparative Analysis of the Structure of Differences between Some Morphotypes of Large African Barbs of Genus Barbus (Labeobarbus auctorum) from Lake Tana, Ethiopia

Author:
M. V. Mina; A. N. Mironovsky
Source:
Journal of ichthyology 2022 v.62 no.3 pp. 348-355
ISSN:
0032-9452
Subject:
morphs,   etc   ; Barbus; Labeobarbus; ichthyology; lakes; ontogeny; Ethiopia;     Show all 7 Subjects
Abstract:
... It is shown that the phyletic relationships of the morphotypes of large African barbs Barbus (Labeobarbus auctorum) may be assessed by the results of a comparative analysis of the structure of morphological differences between them. At the same time, the structure of differences between two samples is characterized by the distribution of eigenvector loadings of characters on the principle componen ...
DOI:
10.1134/S0032945222030092

6. The Biodiversity of Calcaxonian Octocorals from the Irish Continental Slope Inferred from Multilocus Mitochondrial Barcoding

Author:
Declan Morrissey; Candice B. Untiedt; Karen Croke; Aisling Robinson; Eva Turley; A. Louise Allcock
Source:
Diversity 2022 v.14 no.7 pp. -
ISSN:
1424-2818
Subject:
morphs,   etc   ; DNA barcoding; biodiversity; fauna; haplotypes; mitochondria; taxonomy;     Show all 7 Subjects
Abstract:
... Deep-sea corals are important benthic inhabitants that support the biodiversity and function of the wider faunal community; however, their taxonomy is underdeveloped and their accurate identification is often difficult. In our study, we investigated the utility of a superextended (>3000 bp) barcode and explored the effectiveness of various molecular species delimitation techniques with an aim to p ...
DOI:
10.3390/d14070576

7. The Pollen Quality and Anomalies of the Scots Pine in the Central Caucasus

Author:
M. Z. Mollaeva; F. A. Tembotova
Source:
Biology bulletin of the Russian Academy of Sciences 2022 v.49 no.3 pp. 169-174
ISSN:
1062-3590
Subject:
morphs,   etc   ; altitude; habitats; pollen; surveys; viability; Caucasus region;     Show all 7 Subjects
Abstract:
... Astract—For the first time for the Central Caucasus, a description of the qualitative parameters of the Scots pine, such as viability and anomalies of pollen grains, is given. The cytological analysis of the morphological damage to the pollen structure enabled us to distinguish six morphotypes of the cells in the study area. At the sites of survey, the occurrence of abnormal pollen grains varied i ...
DOI:
10.1134/S1062359022030128

8. Disturbance‐mediated invasions are dependent on community resource abundance

Author:
Luke Lear; Daniel Padfield; Hidetoshi Inamine; Katriona Shea; Angus Buckling
Source:
Ecology 2022 v.103 no.8 pp. e3728
ISSN:
0012-9658
Subject:
morphs,   etc   ; Pseudomonas fluorescens; bacteria; biomass; colonizing ability; life history;     Show all 6 Subjects
Abstract:
... Disturbances can facilitate biological invasions, with the associated increase in resource availability being a proposed cause. Here, we experimentally tested the interactive effects of disturbance regime (different frequencies of biomass removal at equal intensities) and resource abundance on invasion success using a factorial design containing five disturbance frequencies and three resource leve ...
DOI:
10.1002/ecy.3728

9. Community-based monitoring reveals spatiotemporal variation of sargasso inundation levels and morphotype dominance across the Caribbean and South Florida

Author:
Lowell Andrew R. Iporac; Danielle C. Hatt; Natalie K. Bally; Alicia Castro; Elizabeth Cardet; Remsly Mesidor; Samantha Olszak; Alain Duran; Derek A. Burkholder; Ligia Collado-Vides
Source:
Aquatic botany 2022 v.182 pp. 103546
ISSN:
0304-3770
Subject:
morphs,   etc   ; Sargassum; botany; coasts; latitude; probability; wind; Caribbean; Florida;     Show all 9 Subjects
Abstract:
... During the past decade, massive inundations of holopelagic Sargassum spp. (S. natans I, S. natans VIII, and S. fluitans III), commonly known as sargasso, have drastically affected beaches and coasts throughout the tropical Atlantic, leading to strong forecasting and monitoring efforts. This study aimed to characterize spatiotemporal variation in accumulation levels and morphotype composition of sa ...
DOI:
10.1016/j.aquabot.2022.103546

10. Transverse sectioning of mature rice (Oryza sativa l.) kernels for scanning electron microscopy imaging using pipette tips as immobilization support

Author:
Demone Jordan; Barton Kiah A.; Altosaar Illimar
Source:
Journal of visualized experiments 2022 no.179 pp. e61407
ISSN:
1940-087X
Subject:
morphs,   etc   ; Oryza sativa; endosperm; equipment; genotype; pericarp; phenotype; rice;     Show all 8 Subjects
Abstract:
... Starch granules (SGs) exhibit different morphologies depending on the plant species, especially in the endosperm of the Poaceae family. Endosperm phenotyping can be used to classify genotypes based on SG morphotype using scanning electron microscopic (SEM) analysis. SGs can be visualized using SEM by slicing through the kernel (pericarp, aleurone layers, and endosperm) and exposing the organellar ...
DOI:
10.3791/61407

11. The use of an integrative approach to identify coelomocytes in three species of the genus Holothuria (Echinodermata)

Author:
Vinicius Queiroz; Manuela Mauro; Vincenzo Arizza; Márcio R. Custódio; Mirella Vazzana
Source:
Invertebrate biology 2022 v.141 no.1 pp. e12357
ISSN:
1077-8306
Subject:
morphs,   etc   ; Holothuria; coelomocytes; ecology; fluorescence; geographical distribution; invertebrates; morphometry;     Show all 8 Subjects
Abstract:
... Coelomocytes in the Holothuroidea are traditionally identified according to their morphology through light, fluorescence, or electron microscopy. Former studies have typically used only one method, with few works combining two or more approaches. Studies using cytocentrifugation to study these cells are scarcer. Thus, for the first time, an integrative approach was used to compare coelomocytes in ...
DOI:
10.1111/ivb.12357

12. Assembly of the exosporium layer in Clostridioides difficile spores

Author:
Daniel Paredes-Sabja; Francisca Cid-Rojas; Marjorie Pizarro-Guajardo
Source:
Current opinion in microbiology 2022 v.67 pp. 102137
ISSN:
1369-5274
Subject:
morphs,   etc   ; Clostridium difficile; exine; health services; microbiology; morphogenesis; relapse; spores;     Show all 8 Subjects
Abstract:
... Clostridioides difficile is a Gram-positive, spore-forming obligate anaerobe and a major threat to the healthcare system world-wide. Because of its strict anaerobic requirements, the infectious and transmissible morphotype is the dormant spore. During infection, C. difficile produces spores that can persist in the host and are responsible for disease recurrence and transmission, especially between ...
DOI:
10.1016/j.mib.2022.01.008

13. Chemical mutagenesis and high throughput media optimization in Tolypocladium inflatum MTCC-3538 leads to enhanced production of cyclosporine A

Author:
Vidushi Abrol; Manoj Kushwaha; Sharada Mallubhotla; Sundeep Jaglan
Source:
3 Biotech 2022 v.12 no.8 pp. 158
ISSN:
2190-572X
Subject:
morphs,   etc   ; Tolypocladium inflatum; cyclosporine; fungi; glucose; mutagenesis; mutants; peptones; valine;     Show all 9 Subjects
Abstract:
... Diethyl sulphate-based mutagenesis was performed on fungal strain Tolypocladium inflatum MTCC-3538. Two mutant morphotypes MT1-3538 and MT2-3538 were selected for further chemo-profiling studies. LCMS/MS profiling of fungal crude extract confirmed that the wild-type and mutant strains (MT1-3538, MT2-3538) were competent to produce cyclosporine A. MT2-3538 produced 2.1 fold higher cyclosporine A in ...
DOI:
10.1007/s13205-022-03219-x

14. Early–middle Permian ecosystems of equatorial Pangaea: Integrated multi-stratigraphic and palaeontological review of the Permian of Mallorca (Balearic Islands, western Mediterranean)

Author:
Rafel Matamales-Andreu; Eudald Mujal; Jaume Dinarès-Turell; Evelyn Kustatscher; Guido Roghi; Oriol Oms; Àngel Galobart; Josep Fortuny
Source:
Earth-science reviews 2022 v.228 pp. 103948
ISSN:
0012-8252
Subject:
morphs,   etc   ; Carboniferous period; Permian period; Triassic period; climate; evolution; pollen;     Show all 7 Subjects
Abstract:
... The Cisuralian–Guadalupian (early–middle Permian) was a period of climate transition from the Carboniferous icehouse conditions to the latest Permian–Early Triassic hothouse. The landmasses had coalesced in the supercontinent Pangaea and the climate was progressively becoming more arid, especially in a belt over the palaeoequator. The deposits of present-day Mallorca (Balearic Islands, western Med ...
DOI:
10.1016/j.earscirev.2022.103948

15. One of these wolves is not like the other: morphological effects and conservation implications of captivity in Mexican wolves

Author:
L. Siciliano‐Martina; J. E. Light; D. G. Riley; A. M. Lawing
Source:
Animal conservation 2022 v.25 no.1 pp. 77-90
ISSN:
1367-9430
Subject:
morphs,   etc   ; Canis lupus; captive animals; endangered species; genetic drift; skull;     Show all 6 Subjects
Abstract:
... Maintaining animal populations in captivity can be a useful way to conserve species, especially those that are extinct in the wild or endangered in their native habitats. These animals could be reintroduced into the wild from captivity if conditions improve. However, captive populations of endangered species are often established with few wild‐caught individuals and are maintained in novel habitat ...
DOI:
10.1111/acv.12724

16. Unrecognized Ant Megadiversity in Monsoonal Australia: Diversity and Its Distribution in the Hyperdiverse Monomorium nigrius Forel Group

Author:
Alan N. Andersen; François Brassard; Benjamin D. Hoffmann
Source:
Diversity 2022 v.14 no.1 pp. -
ISSN:
1424-2818
Subject:
morphs,   etc   ; Monomorium; fauna; polyphyly; trees; Northern Territory; Queensland; Western Australia;     Show all 8 Subjects
Abstract:
... We document diversity and its distribution within the hyperdiverse Monomorium nigrius Forel group of the Australian monsoonal tropics, an unrecognized global centre of ant diversity. The group includes a single described species, but several distinct morphotypes each with multiple clearly recognizable taxa are known. Our analysis is based on 401 CO1-sequenced specimens collected from throughout th ...
DOI:
10.3390/d14010046

17. A new contribution to the taxonomy and phylogeny of the ciliate genus Spirostomum (Alveolata, Ciliophora, Heterotrichea), with comprehensive descriptions of two species from wetlands in China

Author:
Yong Chi; Zhe Wang; Tingting Ye; Ya Wang; Junli Zhao; Weibo Song; William A. Bourland; Xiangrui Chen
Source:
Water biology and security 2022 v.1 no.2 pp. 100031
ISSN:
2772-7351
Subject:
morphs,   etc   ; Heterotrichea; genes; geographical distribution; monophyly; reproduction; taxonomy; water; China;     Show all 9 Subjects
Abstract:
... Species of the ciliate genus Spirostomum Ehrenberg, 1834 are distributed worldwide and have a research history spanning more than two centuries. However, species delimitation and phylogenetic relationships within this genus are still uncertain due to the paucity of stable morphologic characters for species separation and the unavailability of accompanying morphological data for most molecular sequ ...
DOI:
10.1016/j.watbs.2022.100031

18. Cytotaxonomic investigations on species of genus Narcissus (Amaryllidaceae) from Algeria

Author:
Naila Chahinez Boukhebache; Nabila Amirouche; Rachid Amirouche
Source:
Comparative cytogenetics 2022 v.16 no.1 pp. 55-76
ISSN:
1993-078X
Subject:
morphs,   etc   ; asymmetry; chromosomes; cytotypes; diploidy; geographical distribution; hexaploidy; karyotyping; Algeria;     Show all 9 Subjects
Abstract:
... AbstractThis paper provides new cytotaxonomic data on the genus Narcissus Linnaeus, 1753, in Algeria. Populations of seven taxa, N. tazetta Linnaeus, 1753, N. pachybolbus Durieu, 1847, N. papyraceus Ker Gawler, 1806, N. elegans (Haworth) Spach, 1846, N. serotinus sensu lato Linnaeus, 1753, including N. obsoletus (Haworth) Steudel, 1841, and N. cantabricus De Candolle, 1815, were karyologically in ...
DOI:
10.3897/compcytogen.v16.i1.78852

19. Comparative evaluation of coelomocytes in Paracentrotus sea urchins: Description of new cell types and insights on spherulocyte maturation and sea urchin physiology

Author:
Vinicius Queiroz; Vincenzo Arizza; Mirella Vazzana; Márcio R. Custódio
Source:
Zoologischer Anzeiger 2022 v.300 pp. 27-40
ISSN:
0044-5231
Subject:
morphs,   etc   ; Paracentrotus lividus; coelomocytes; cytochemistry; immunology; morphometry; physiology; stem cells;     Show all 8 Subjects
Abstract:
... Sea urchins are the best-known models in echinoderm immunology and only four coelomocytes – i.e. phagocytes, vibratile cells, and red and colorless spherulocytes – have traditionally been observed in these animals. However, recent studies have demonstrated that this number could be underestimated, which consequently may hinder a better understanding of sea urchin physiology. Here, we investigated ...
DOI:
10.1016/j.jcz.2022.06.008

20. Morphological and molecular characterization of mole crab (Genus: Emerita) in the Cilacap coastlines of Indonesia, with particular focus on genetic diversity of Emerita sp. nov.

Author:
DIAN BHAGAWATI; AGUS NURYANTO; ELLY TUTY WINARNI; ANASTASIA ENDANG PULUNGSARI
Source:
Biodiversitas 2022 v.23 no.5 pp. -
ISSN:
2085-4722
Subject:
morphs,   etc   ; Emerita; coastal ecosystems; genes; genetic variation; haplotypes; sympatry; Indonesia;     Show all 8 Subjects
Abstract:
... Bhagawati D, Nuryanto A, Winarni ET, Pulungsari AE. 2022. Morphological and molecular characterization of mole crab (Genus: Emerita) in the Cilacap coastlines of Indonesia, with particular focus on genetic diversity of Emerita sp. nov. Biodiversitas 23: 2395-2404. Previous studies reported Emerita emeritus is the only species of the Genus Emerita inhabiting the coastal ecosystem of the Cilacap Dis ...
DOI:
10.13057/biodiv/d230517