Results 221 to 230 of about 9,065 (260)
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Effect of Antioxidant Peptide Isolated from Brachionus calyciflorus
Journal of the Korean Society for Applied Biological Chemistry, 2010The antioxidative activities of hydrolysates isolated from the freshwater rotifer using enzymes Alcalase, α-chymotrypsin, Neutrase, papain, pepsin, and trypsin were identified and evaluated using direct free radical scavenging activity. Among the six hydrolysates, Neutrase hydrolysate had the highest antioxidative activity compared to the other ...
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Relative sensitivity of daphnia magna and brachionus calyciflorus to five pesticides
Journal of Environmental Science and Health, Part B, 1992Comparative toxicity of several pesticides, lindane, endosulfan, pentachlorophenol (PCP),3,4-dichloroaniline (DCA) and copper sulphate has been tested to determine their lethality in two species of freshwater invertebrates, Daphnia magna and Brachionus calyciflorus. D. magna was more sensitive than B.
M D, Ferrando +2 more
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Hydrobiologia, 2008
In the present study, we evaluated the effects of a graded series of different intensities of predation by predatory rotifer Asplanchna brightwellii (0, 1, 2, 5, 10 and 20 ind. per 50 ml) on the competition outcome between two herbivorous rotifers, Brachionus calyciflorus (196 ± 12 μm in length) and Brachionus patulus (145 ± 8 μm in length), at high (3
Xu Wang Yin, Cui Juan Niu
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In the present study, we evaluated the effects of a graded series of different intensities of predation by predatory rotifer Asplanchna brightwellii (0, 1, 2, 5, 10 and 20 ind. per 50 ml) on the competition outcome between two herbivorous rotifers, Brachionus calyciflorus (196 ± 12 μm in length) and Brachionus patulus (145 ± 8 μm in length), at high (3
Xu Wang Yin, Cui Juan Niu
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Aging and control of the reproduction in Brachionus calyciflorus (pallas) (rotatoria)
Experimental Gerontology, 1977Abstract The study of eggs laying of amictic females in defined conditions of temperature light, medium, food and population density demonstrate that the maternal age significantly affects the rate of mictic females produced in F1: this rate is highly and negatively correlated with the maternal age.
C, Rougier, R, Pourriot
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Effect of Microcystis aeruginosa on the rotifer Brachionus calyciflorus at different temperatures
Bulletin of Environmental Contamination and Toxicology, 2011Rotifers are one of the smallest metazoans. They serve as a model organism for ecotoxicological studies. More than 60% of the lakes in China are increasingly eutrophic and they are susceptible to blooms of Microcystis aeruginosa. We investigated the effects of M.
Xiong, Zhang, Hong, Geng
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Does excess carbon affect respiration of the rotifer Brachionus calyciflorus Pallas?
Freshwater Biology, 2006Summary1. Herbivorous zooplankton maintain a rather constant elemental composition in their body mass as compared with the variability commonly encountered in their food. Furthermore, their high phosphorus (P) and nitrogen (N) content means that they often face an excess of carbon (C) in their diet.
Jensen, T.C. +3 more
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Science of The Total Environment, 2014
The effects of acute toxicity, 3-day population growth and morphological effects of perfluorinated carboxylic acids (PFCAs) with carbon chain lengths of 2-6 on the freshwater rotifer Brachionus calyciflorus were investigated. The results indicated that the 24-h median lethal concentration (LC50) values of trifluoroacetic acid (TFA), perfluoropropionic ...
Yujuan Wang +3 more
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The effects of acute toxicity, 3-day population growth and morphological effects of perfluorinated carboxylic acids (PFCAs) with carbon chain lengths of 2-6 on the freshwater rotifer Brachionus calyciflorus were investigated. The results indicated that the 24-h median lethal concentration (LC50) values of trifluoroacetic acid (TFA), perfluoropropionic ...
Yujuan Wang +3 more
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Respiration of different stages and energy budgets of juvenile brachionus calyciflorus
Hydrobiologia, 1980Respiration data for different stages of Brachionus calyciflorus, fed with three concentrations of Kirchnerielia lunaris at 20°C, are presented. Increasing oxygen consumption from 4.1 to 4.6. 10−3 μl/h x ind. with food decreasing from 5.106 to 106 and 4.105 cells/ml has been found for adult females with one egg, but other age groups showed divergent ...
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Monoxenic cultivation of the rotifer Brachionus calyciflorus in a defined medium
Oecologia, 1970Techniques are described for the initiation and maintenance of axenic cultures of Euglena gracilis strain Z and monoxenic cultures of Brachionus calyciflorus variety pala with the Euglena, using in both the same defined, buffered medium. The medium, which is inorganic-except for the citrate chelating agent, the buffer, and vitamins B1 and B12 - has ...
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