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You searched for: Journal name Ecotoxicology Remove constraint Journal name: Ecotoxicology Publication year rev 7981-2019 Remove constraint Publication year rev: 7981-2019 Source 2019 v.28 no.4 Remove constraint Source: 2019 v.28 no.4
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1. Autotoxicity of root exudates varies with species identity and soil phosphorus

Author:
Zhen-Kai Sun; Wei-Ming He
Source:
Ecotoxicology 2019 v.28 no.4 pp. 429-434
ISSN:
0963-9292
Subject:
Sesbania cannabina; Solidago canadensis; activated carbon; biomass; phosphorus; root exudates; roots; shoots; soil; stoichiometry; toxicity
Abstract:
... Root exudate autotoxicity (i.e. root exudates from a given plant have toxic effects on itself) has been recognized to be widespread. Here we examined how plant species identity and soil phosphorus (P) availability influenced this autotoxicity and the possible stoichiometric mechanisms. We conducted an experiment with three species (Luctuca sativa, Sesbania cannabina, and Solidago canadensis), whic ...
DOI:
10.1007/s10646-019-02035-z

2. Chromate detoxification potential of Staphylococcus sp. isolates from an estuary

Author:
Elroy Joe Pereira; Nagappa Ramaiah
Source:
Ecotoxicology 2019 v.28 no.4 pp. 457-466
ISSN:
0963-9292
Subject:
ABC transporters; Staphylococcus arlettae; Staphylococcus saprophyticus; bacteria; bioremediation; cephalosporins; chromium; effluents; estuaries; genes; habitats; heavy metals; pollution; polyacrylamide gel electrophoresis; ribosomal RNA; salt tolerance; sequence analysis; toxic substances; toxicity; India
Abstract:
... Chromium (Cr) pollution is an emerging environmental problem. The present study was carried out to isolate Cr-resistant bacteria and characterize their Cr detoxification and resistance ability. Bacteria screened by exposure to chromate (Cr⁶⁺) were isolated from Mandovi estuary Goa, India. Two isolates expressed high resistance to Cr⁶⁺ (MIC ≥ 300 µg mL⁻¹), Cr³⁺ (MIC ≥ 900 µg mL⁻¹), other toxic heav ...
DOI:
10.1007/s10646-019-02038-w

3. Comparative study of phytotoxicity and genotoxicity of soil contaminated with biodiesel, diesel fuel and petroleum

Author:
Jaqueline Matos Cruz; Nádia Aline Corroqué; Renato Nallin Montagnoli; Paulo Renato Matos Lopes; Maria Aparecida Marin Morales; Ederio Dino Bidoia
Source:
Ecotoxicology 2019 v.28 no.4 pp. 449-456
ISSN:
0963-9292
Subject:
vegetable oil; raw materials; diesel fuel; palmitic acid; genotoxicity; oleic acid; roots; polluted soils; petroleum; linoleic acid; animals; hypocotyls; soil microorganisms; animal fats and oils; biodegradability; Eruca vesicaria subsp. sativa; mitosis; stearic acid; bioassays; biodiesel; enzyme activity; microbial activity; aromatic compounds; phytotoxicity; Allium cepa; hydrocarbons; mutagens; biodegradation; seed development
Abstract:
... The worldwide spillage of fossil fuels causes an ever-increasing environmental concern due to their resistance to biodegradation and toxicity. The diesel fuel is one of the derivative forms of petroleum that is widely used in the world. Its composition has many aromatic compounds and long hydrocarbons chains, both persistent and hazardous, thus requiring complex microbial dynamics to achieve full ...
DOI:
10.1007/s10646-019-02037-x

4. Development of marine water quality criteria for inorganic mercury in China based on the retrievable toxicity data and a comparison with relevant criteria or guidelines

Author:
Qiang Liu; Xiaoqun Xu; Jiangning Zeng; Wei Huang; Xudan Xu; Lu Shou; Quanzhen Chen
Source:
Ecotoxicology 2019 v.28 no.4 pp. 412-421
ISSN:
0963-9292
Subject:
European Union; acute toxicity; aquatic organisms; chronic toxicity; databases; developed countries; environmental quality; guidelines; mercury; models; pollutants; risk; seawater; water quality criteria; Australia; China; United States
Abstract:
... The development of marine water quality criteria (WQC) in China has been insufficient because data on the toxicity of pollutants for marine organisms based on the species sensitivity distribution (SSD) method are lacking. The Chinese aquatic environmental quality standards, including those for seawater, were derived from the developed countries. Therefore, establishing Chinese marine WQC is crucia ...
DOI:
10.1007/s10646-019-02032-2

5. Direct and indirect effects of zinc oxide and titanium dioxide nanoparticles on the decomposition of leaf litter in streams

Author:
Sumaya Al Riyami; Dalal Al Mahrouqi; Raeid M. M. Abed; Abdulkadir Elshafie; Priyanka Sathe; Michael J. Barry
Source:
Ecotoxicology 2019 v.28 no.4 pp. 435-448
ISSN:
0963-9292
Subject:
Ficus vasta; ecosystems; freshwater; fungal communities; fungi; habitats; leaf mass; leaves; metabolism; nanoparticles; plant litter; reactive oxygen species; solar radiation; streams; titanium; titanium dioxide; zinc; zinc oxide
Abstract:
... As the production of metallic nanoparticles has grown, it is important to assess their impacts on structural and functional components of ecosystems. We investigated the effects of zinc and titanium nanoparticles on leaf decomposition in freshwater habitats. We hypothesized that nanoparticles would inhibit the growth and activity of microbial communities leading to decreased decomposition rates. W ...
DOI:
10.1007/s10646-019-02036-y

6. Heavy metals transported through a multi-trophic food chain influence the energy metabolism and immune responses of Cryptolaemus montrouzieri

Author:
Cailian Du; Jianhui Wu; Muhammad Hamid Bashir; Mobeen Shaukat; Shaukat Ali
Source:
Ecotoxicology 2019 v.28 no.4 pp. 422-428
ISSN:
0963-9292
Subject:
Cryptolaemus montrouzieri; Dysmicoccus neobrevipes; Maconellicoccus hirsutus; acid phosphatase; alkaline phosphatase; antioxidants; cadmium; catalase; cholesterol; ecosystems; energy metabolism; food chain; glycogen; heavy metals; humans; immune response; innate immunity; lead; nickel; peroxidase; predatory insects; protein content; reproduction; soil; superoxide dismutase; toxicity; triacylglycerols; zinc
Abstract:
... Contamination of environment with heavy metals is increasingly becoming an issue of major concern across the globe. Heavy metals are highly toxic to humans as well as other organisms of the ecosystem. The translocation of heavy metals from soil to predatory insects via multi-tophic food chains can influence the growth, reproduction, metabolism and innate immune systems of the predators. This study ...
DOI:
10.1007/s10646-019-02033-1

7. Impacts of sulfanilamide and oxytetracycline on methane oxidation and methanotrophic community in freshwater sediment

Author:
Tianli Tong; Shuguang Xie
Source:
Ecotoxicology 2019 v.28 no.4 pp. 392-398
ISSN:
0963-9292
Subject:
anaerobic conditions; community structure; freshwater; genes; messenger RNA; methane; methane monooxygenase (particulate); methane production; methanotrophs; microbial activity; oxidation; oxytetracycline; sediments; sulfanilamide
Abstract:
... Methanotrophs are of great significance for the abatement of methane emission from anoxic environments. Antibiotics are ubiquitous in the environment and can affect microbial activity and community density and composition. However, information about the effect of antibiotics on methanotrophs is still lacking. The current study explored the influences of sulfonamides and tetracyclines on methane ox ...
DOI:
10.1007/s10646-019-02026-0

8. Transgenerational sublethal effects of abamectin and pyridaben on demographic traits of Phytonemus pallidus (Banks) (Acari: Tarsonemidae)

Author:
Mozhgan Hedayati; Amin Sadeghi; Mostafa Maroufpoor; Hamed Ghobari; Ali Güncan
Source:
Ecotoxicology 2019 v.28 no.4 pp. 467-477
ISSN:
0963-9292
Subject:
Phytonemus pallidus; abamectin; eggs; fecundity; females; integrated pest management; life tables; longevity; males; mites; parents; pests; progeny; pyridaben; strawberries; sublethal effects
Abstract:
... In addition to determining the lethal effects, identifying sublethal effects of a pesticide is crucial to understanding the total impact a pesticide may have on a pest population. We determined the sublethal effects the two pesticides, abamectin and pyridaben, have on the cyclamen mite, Phytonemus pallidus (Banks) (Acari: Tarsonemidae)—a major pest of strawberry. Demographic traits of the P. palli ...
DOI:
10.1007/s10646-019-02040-2

9. Chronic toxicity and biochemical response of Apis cerana cerana (Hymenoptera: Apidae) exposed to acetamiprid and propiconazole alone or combined

Author:
Wensu Han; Yemeng Yang; Jinglin Gao; Dongxiang Zhao; Chengcai Ren; Shijie Wang; Shan Zhao; Yihai Zhong
Source:
Ecotoxicology 2019 v.28 no.4 pp. 399-411
ISSN:
0963-9292
Subject:
Angiospermae; Apis cerana; acetamiprid; acetylcholinesterase; chronic toxicity; flowers; honey bees; mortality; oral exposure; pollination; pollinators; propiconazole; synergism
Abstract:
... Acetamiprid and ergosterol-inhibiting fungicide (EBI) are frequently applied to many flowering plants, while honey bees are pollinating agents or pollinators of the flowers. Hence honey bees are often exposed to these pesticides. But until now, the effects of theses combinations at field-realistic doses on honey bee health have been poorly investigated. In this study, we explore the synergistic mo ...
DOI:
10.1007/s10646-019-02030-4

10. Feather mercury concentrations in North American raptors sampled at migration monitoring stations

Author:
Ryan P. Bourbour; Breanna L. Martinico; Joshua T. Ackerman; Mark P. Herzog; Angus C. Hull; Allen M. Fish; Joshua M. Hull
Source:
Ecotoxicology 2019 v.28 no.4 pp. 379-391
ISSN:
0963-9292
Subject:
Accipiter cooperii; Accipiter striatus; Buteo jamaicensis; Buteo lineatus; Circus; Falco columbarius; Falco mexicanus; Falco peregrinus; Falco sparverius; adults; birds of prey; breasts; cost effectiveness; environmental monitoring; feathers; juveniles; least squares; mercury; pollution; Mississippi
Abstract:
... We assessed total mercury (THg) concentrations in breast feathers of diurnal North American raptors collected at migration monitoring stations. For 9 species in the Pacific Flyway, we found species and age influenced feather THg concentrations whereas sex did not. Feather THg concentrations µg/g dry weight (dw) averaged (least squares mean ± standard error) higher for raptors that generally consum ...
DOI:
10.1007/s10646-019-02016-2

11. Influence of the flood pulse on mercury accumulation in detritivorous, herbivorous and omnivorous fish in Brazilian Amazonia

Author:
Lucas Silva Azevedo; Inácio Abreu Pestana; Adriely Ferreira da Costa Nery; Wanderley Rodrigues Bastos; Cristina Maria Magalhães Souza
Source:
Ecotoxicology 2019 v.28 no.4 pp. 478-485
ISSN:
0963-9292
Subject:
detritivores; ecosystems; fish; herbivores; lakes; mercury; muscles; omnivores; rivers; seasonal variation; watersheds; Amazonia; Brazil
Abstract:
... Hg accumulation in fish is influenced by several factors including seasonality. In the Amazon, ecosystems are marked by strong seasonal variation in precipitation, which leads to drastic changes in the water level of lakes and rivers. The aim of this study was to evaluate Hg levels in muscle of detritivorous, herbivorous and omnivorous fish from an Amazon lake (Madeira River Basin, Amazonas, Brazi ...
DOI:
10.1007/s10646-019-02044-y