Zobrazeno 1 - 10
of 17
pro vyhledávání: '"J. P. Gaur"'
Autor:
B. N. Tripathi, J. P. Gaur
The present study demonstrates the recovery of phytoplankton assemblage from metal stress. Phytoplankton assemblage consisting of different freshwater algal species isolated from a tropical pond was exposed to sublethal concentrations of Cu and Zn fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a4066ceebd16a915ab6b3d307946413
https://doi.org/10.21203/rs.3.rs-657719/v2
https://doi.org/10.21203/rs.3.rs-657719/v2
Autor:
Bhumi Nath Tripathi, J. P. Gaur
Publikováno v:
Protoplasma. 229:1-9
A 48 h exposure of Scenedesmus sp. to sublethal concentrations of Cu (2.5 and 10 microM) and Zn (5 and 25 microM) caused a concentration-dependent inhibition of growth, photosynthesis, respiration, NO(3)(-) uptake, and nitrate reductase (EC 1.6.6.1)
Publikováno v:
Archiv für Hydrobiologie. 136:135-144
Azolla pinnata and Spirodela polyrhiza showed profound ability to take up Cd from ambient medium. Cd adsorption by test plants occurred rapidly during the initial stage of incubation, but the process slowed down and reached an equilibrium in 120 min.
Autor:
J. P. Gaur, Alok Singh
Publikováno v:
Environmental Toxicology & Water Quality. 6:341-350
Effects of light and temperature, the most important variables in natural environments, on the toxicity of Assam crude oil extract were examined. Illumination of oil extract increased the degree of inhibition of growth, photosynthesis, and respiratio
Autor:
Jayashree Rout, J. P. Gaur
Publikováno v:
Archiv für Hydrobiologie. 119:293-298
Publikováno v:
Biomedical and environmental sciences : BES. 8(3)
Effects of pH, temperature, EDTA and photosynthetically available radiation on the uptake and toxicity of Cd was investigated in Spirodela polyrhiza (L.) Schleid. and Azolla pinnata R. Br. In general, Cd toxicity was accentuated in conditions which f
Publikováno v:
Biomedical and environmental sciences : BES. 8(2)
A. pinnata showed a remarkable ability of taking up Cd from the external medium. Of the total Cd taken up by the test plant, surface adsorption was about 90%. Cd adsorption did not occur at a constant rate, however, an equilibrium was reached in 2 h.
Autor:
N. Noraho, J. P. Gaur
Publikováno v:
Biometals. 8
Cations, including calcium, magnesium, potassium, sodium, copper, iron, nickel and zinc, inhibited (up to 40%) extracellular binding and intracellular uptake of cadmium by Lemna polyrhiza in solution culture. Test plants showed a high capacity of ext
Publikováno v:
Proceedings / Indian Academy of Sciences. 99:459-466
Assam crude, kerosene, petrol, diesel and furnace oil administered into the culture suspension ofAnabaena doliolum as whole oil or aqueous extract exerted concentration dependent toxic effects. The hierachy of toxicity of the test oils was diesel > f
Autor:
H. D. Kumar, J. P. Gaur
Publikováno v:
Internationale Revue der gesamten Hydrobiologie und Hydrographie. 71:271-281
Laboratory-based bioassay experiments using Selenastrum capricornutum PRINTZ as the test organism were conducted to evaluate the potentiality of refinery effluents to sustain algal growth. The raw effluents were remarkably toxic to the test alga, but