Results 11 to 20 of about 3,700 (202)

Effects of Herbicides on Selenastrum capricornutum and Daphnia magna

‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 1997
The toxicity of five herbicides, Propanil, Machete, Rilof-H, Saturn, and Ronestar, commonly used in Iranian rice fields, were investigated in acute toxicity bioassays on two organisms belonging to different ig dquatic food chain.
M. Piri; V. Erdok
doaj   +4 more sources

Toxic effects of erythromycin, ciprofloxacin and sulfamethoxazole on photosynthetic apparatus in Selenastrum capricornutum

Ecotoxicology and Environmental Safety, 2011
The effects of three antibiotics (erythromycin, ciprofloxacin and sulfamethoxazole) on photosynthesis process of Selenastrum capricornutum were investigated by determining a battery of parameters including photosynthetic rate, chlorophyll fluorescence, Hill reaction, and ribulose-1.5-bisphosphate carboxylase activity, etc.
Bin-yang, Liu, Xiang-ping, Nie, Wei-qiu, Liu, Pauline, Snoeijs, Chao, Guan, Martin T K, Tsui   +5 more
exaly   +3 more sources

Determinación de cromo hexavalente sobre el crecimiento de Selenastrum capricornutum

Acta Biológica Colombiana, 2002
Sobre cultivos de Selenastrum capricornutum, se ensayaron algunas condiciones ambientales,como iluminación (continua y fotoperíodo), agitación (continua y manual) y nutricionalescomo la relación nitrógeno y fósforo (N:P, 50:1 y 25:1) en el medio de ...
Giovanna Lida Arboleda Díaz
doaj   +1 more source

Determinación de cromo hexavalente sobre el crecimiento de Selenastrum capricornutum

Acta Biológica Colombiana, 2004
Sobre cultivos de Selenastrum capricornutum se ensayaron algunas condiciones ambientales como, iluminación (continua y fotoperíodo) y agitación (continua y manual); y nutricionales, como la relación Nitrógeno y Fósforo (N:P, 50:1 y 25:1) en el medio de ...
Giovanna Lida Arboleda Díaz, María Consuelo Díaz Baéz   +1 more
doaj   +1 more source

Biodiversity Buffers Phytoplankton Biomass Production Against Nanoparticle Pollution Through Increased Facilitation. [PDF]

Ecol Lett
Biodiversity can buffer ecosystems against environmental stressors, yet its role under nanoparticle pollution remains unclear. Using freshwater phytoplankton communities exposed to copper oxide nanoparticles, we show that higher species richness alleviates productivity losses through increased facilitation among species.
Zuo Y, Xu Q, Southard M, Zhang G, Gan L, Zhang H, Yan P, Walls L, Steinbeck M, Zhao M, Chen Y, Jiang L.   +11 more
europepmc   +2 more sources

Safety of the preparation of monensin sodium (Coxidin®) produced with <i>Streptomyces</i> sp. LMG S-19095 as a coccidiostat for chickens for fattening and chickens reared for laying (Huvepharma N.V.). [PDF]

EFSA J
Abstract Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety of monensin sodium (Coxidin®) produced with Streptomyces sp. LMG S‐19095 as a coccidiostat for chickens for fattening, chickens reared for laying, turkeys for fattening and turkeys reared for breeding.
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Villa RE, Azimonti G, Bonos E, Christensen H, Durjava M, Dusemund B, Gehring R, Glandorf B, Kouba M, López-Alonso M, Marcon F, Nebbia C, Pechová A, Prieto-Maradona M, Röhe I, Theodoridou K, Galobart J, Vettori MV, Navarro-Villa A, Valeri P.   +20 more
europepmc   +2 more sources

Algal extracellular organic matter mediated photocatalytic degradation of estrogens

Ecotoxicology and Environmental Safety, 2021
Estrogens are among the most concerned emerging contaminants in the wastewater treatment effluent due to their sexual disruption in aquatic wildlife. The use of microalgae for secondary wastewater effluent polishing is a promising approach due to the ...
Pei-Hsun Wu, Hsin-Yi Yeh, Pei-Hsin Chou, Wen-Wei Hsiao, Chang-Ping Yu   +4 more
doaj   +1 more source

Adenosine Triphosphate Content of Selenastrum capricornutum [PDF]

Applied Microbiology, 1971
The adenosine triphosphate content of Selenastrum capricornutum was maintained within 1.4 to 3.4 μg of adenosine triphosphate/mg (dry weight) of living biomass at different growth stages in media of different phosphorus concentrations.
C C, Lee, R F, Harris, J K, Syers, D E, Armstrong   +3 more
openaire   +2 more sources

Surfactant (Genapol OX-80) toxicity to Selenastrum capricornutum [PDF]

Chemosphere, 2000
A non-ionic surfactant (Genapol OX-80) was proposed as a means of reducing destructive crayfish activity in rice. In order to study the toxicity of this product on algae, a test in accordance to the ISO 8692 protocol (1989) was performed. The growth inhibiting effect of the pure formulation of Genapol OX-80 was studied on Selenastrum capricornutum in ...
Anastácio, P. M., Holten Lützhøft, H. -C., Halling-Sørensen, B., Marques, J. C.   +3 more
openaire   +3 more sources

Stereoselective bioactivity, toxicity and degradation of novel fungicide sedaxane with four enantiomers under rice-wheat rotation mode

Ecotoxicology and Environmental Safety, 2022
Sedaxane was a novel chiral fungicide that contains four enantiomers. Unfortunately, the stereoselective bioactivity, toxicity and degradation of sedaxane have not been clarified.
Zhou Tong, Yue Chu, Hongwei Wen, Benkun Li, Xu Dong, Mingna Sun, Dandan Meng, Mei Wang, Tongchun Gao, Jinsheng Duan   +9 more
doaj   +1 more source