Results 131 to 140 of about 913 (156)

Availability of Soil Phosphorus to The Green Algae Selenastrum Capricornutum

1999
In freshwater environments, phosphorus (P) is usually the limiting nutrient for algal growth. Erosion of agricultural land forms a major source of P loading in many lakes. The contribution of soil P to the eutrophication of recipient waters depends on the rate at which it is transformed into dissolved orthophosphate, the only P compound that can be ...
Kirsti Krogerus, Petri Ekholm
openaire   +1 more source

Speciation of aqueous methylmercury influences uptake by a freshwater alga (Selenastrum capricornutum)

Environmental Toxicology and Chemistry, 2006
AbstractUptake of methylmercury (MeHg) by the alga Selenastrum capricornutum was measured in fresh water batch culture bioassays. The concentration of MeHg in the alga increased rapidly (within 15 min), reached a maximum by 6 h, and then declined because of growth dilution.
Patrick R, Gorski, David E, Armstrong, James P, Hurley, Martin M, Shafer   +3 more
openaire   +2 more sources

Acute toxicity of fatty acids to the freshwater green alga Selenastrum capricornutum

Environmental Toxicology, 2003
AbstractThe acute toxicity of fatty acids (C14 to C18) commonly found in wood was determined by the standard algal growth inhibition test using the freshwater green alga Selenastrum capricornutum. Toxicity, quantified as IC50 values, varied depending on the number of total carbons and double bonds.
Yasushi, Kamaya, Yasunori, Kurogi, Kyoji, Suzuki   +2 more
openaire   +2 more sources

Identification of a copper-sensitive ascorbate peroxidase in the unicellular green alga Selenastrum capricornutum

Biometals, 1997
Extracts from the unicellular green alga Selenastrum capricornutum exhibit high superoxide dismutase activity, but only traces of catalase activity. The excess hydrogen peroxide (H2O2) generated by the superoxide dismutase in S. capricornutum may be degraded by a unique peroxidase.
K R, Sauser, J K, Liu, T Y, Wong
openaire   +2 more sources

Conjugation of benzo[a]pyrene metabolites by freshwater green alga Selenastrum capricornutum

Chemico-Biological Interactions, 1990
Benzo[a]pyrene (BaP) undergoes metabolic transformation in mammals via oxidative, hydrolytic, and conjugative processes; however, little is known concerning BaP conjugation in freshwater algae. It has been shown in this laboratory that BaP is metabolized by Selenastrum capricornutum via a dioxygenase pathway. This study describes the conjugation of BaP
D, Warshawsky, T H, Keenan, R, Reilman, T E, Cody, M J, Radike   +4 more
openaire   +2 more sources

Pyrene metabolites by bacterium enhancing cell division of green alga Selenastrum capricornutum

Science of The Total Environment, 2019
Collaborations between multiple microbial species are important for understanding natural clearance and ecological effects of toxic organic contaminants in the environment. However, the interactions between different species in the transformation and degradation of contaminants remain to address.
Xujie Li, Fengshan Cai, Tiangang Luan, Li Lin, Baowei Chen   +4 more
openaire   +2 more sources

Use of new microbiotests with Daphnia magna and Selenastrum capricornutum immobilized forms

Chemosphere, 1998
A preliminary assessment of toxicity to aquatic life of water from rice fields treated with pesticides, and particularly with the herbicides molinate and quinclorac, was performed from June to August 1996 in a rice paddy area integrated in a Natural Reserve.
M J, Cerejeira, T, Pereira, A, Silva-Fernandes   +2 more
openaire   +2 more sources

Effect of Medium Phosphate Levels on the Sensitivity of Selenastrum capricornutum to Chemicals

Bulletin of Environmental Contamination and Toxicology, 2004
Y, Kamaya, T, Takada, K, Suzuki
openaire   +2 more sources

Enhanced potential of a Selenastrum capricornutum mutant for CO2 fixation and biofuels production

Environmental Progress and Sustainable Energy, 2022
Feng Qi
exaly  

PHOSPHATE-LIMITED GROWTH KINETICS OF SELENASTRUM CAPRICORNUTUM (CHLOROPHYCEAE)

Journal of Phycology, 1979
Edward J. Brown, Don K. Button
openaire   +1 more source