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111.
Gaind S Rathi MS Kaushik BD Nain L Verma OP 《Journal of environmental science and health. Part. B》2007,42(6):663-668
Survival of Mesorhizobium ciceri (SP(4)) and Azotobacter chroococcum (CBD-15 and M(4)) was tested on chickpea (Cicer arietinum) seeds treated with fungicides bavistin [methyl N-(1H-benzimidazol-2yl) carbamate] and thiram (tetramethyl-thiuram disulfide), whereas survival of phosphate solubilizing bacteria (PSB), Pseudomonas striata (27) and Bacillus polymyxa (H(5)) was examined on two cultivars (Arkel and BV) of pea (Pisum sativum) seeds treated with thiram. Viability of Azotobacter chroococcum (W(5)) was also examined on wheat (Triticum aestivum) seeds treated with bavistin, captan (cis-N-trichloromethyl thio-4 cyclohexane-1, 2-dicarboximide) and thiram under laboratory conditions using standard dilution and the plate count technique. All the tested strains of diazotrophs and PSB showed decline in their viable population on prolonged contact with fungicides. However, PSB showed variation in their viable population even with the cultivar. BV cultivar of pea seeds showed better recovery of viable P. striata (10.75 to 10.61 log no. of viable cells with in 0-24 hrs) in the presence of thiram, whereas the Arkel cultivar of pea resulted in better recovery of viable B. polymyxa. Azotobacter chroococcum (W(5)), a potential strain for wheat, showed better survival in the presence of bavistin, compared to thiram and captan. Higher viable population of Mesorhizobium ciceri (SP(4)) and Azotobacter chroococcum (M(4)) was recovered from chickpea seeds treated with bavistin compared to thiram. However, thiram-treated seeds resulted in a greater number of extractable Azotobacter chroococcum (CBD-15). Under field conditions, adverse effect of thiram was reflected on the performance of Mesorhizobium ciceri (SP(4)) and A. chroococcum (M(4)) strains, resulting in reduced root and shoot biomass and grain yield, compared to bavistin treated and culture inoculated treatment. CBD-15 showed better performance in the presence of thiram compared to bavistin. 相似文献
112.
Mishra Raghvendra Kumar Mishra Priyanka Verma Kartikey Mondal Aniruddha Chaudhary Ratiram Gomaji Abolhasani Mohammad Mahdi Loganathan Sravanthi 《Environmental Chemistry Letters》2019,17(2):767-800
Environmental Chemistry Letters - Electrospinning has attracted a worldwide interest as a technique for the production of nanofibrous membranes with diameter ranging 2 nm to several... 相似文献
113.
Lodhi HS Khan MA Verma RS Sharma UD 《Journal of environmental biology / Academy of Environmental Biology, India》2006,27(3):585-588
Fresh water prawns, Macrobrachium lamarrei and Macrobrachium dayanum (Crustacea-Decapoda) were subjected to static bioassay tests to ascertain the LC50 values of copper sulphate. The 24, 48, 72 and 96 hr LC50 values of copper sulphate for M. lamarrei were 0.38, 0.361, 0.343 and 0.300 mg/l and for M. dayanum were 1.634, 0.988, 0.532 and 0.418 mg/l respectively. Behavioral responses and LC50 values indicate that M. lamarrei were more sensitive to copper sulphate than M. dayanum. 相似文献
114.
Copper-ligand complex for the decolorization of synthetic dyes 总被引:1,自引:0,他引:1
The reaction system containing Cu(II), hydrogen peroxide and D-arabinono-1,4-lactone was found to be effective in the decolorization and reduction of toxicity of azo, thiazine-, triphenylmethane- and anthraquinone-based synthetic dyes. More than 85% decolorization was obtained with 100ppm Acridine Orange, Azure B, Chicago Sky Blue 6B, Crystal Violet, Evans Blue, Poly B-411, Reactive Blue 2, Reactive Blue 5, and Remazol Brilliant Blue R incubated for 24h in the presence of 10mM CuSO(4), 20mM D-arabinono-1,4-lactone and 80 mM H(2)O(2). The rate of decolorization was not affected by pH in the range of 3-9. The rapid decolorization was accompanied by a fast decomposition of H(2)O(2) in the reaction mixture and by a fast production of hydroxyl radicals. 相似文献
115.
The surface sediments of Vembanad Lake, a tropical estuary on the west coast of India, were analyzed for carbon (TC, TOC,
TIC), nitrogen (TN), amino acids and two amino sugars. C/N ratios for the surface sediments vary from 1.0–21.8, indicating
terrestrial sources of organic matter. Various biogeochemical indicators based on amino acids such as Asp/β-ala and Glu/γ-aba
ratios revealed that the organic matter in the 5- to 10-cm surface sediments was fresh and had not undergone extensive degradation.
However, the Gluam/Galam ratio for surface sediments of Vembanad Lake varies from 0.4–2.1, indicating the dominance of bacterial
biomass in the sediments. Organic matter in the sediments was found to be highly reactive, with a reactivity index ranging
from 2.4–7.4, suggesting rapid remineralization.
Electronic Publication 相似文献
116.
117.
Mandal Reema Das Anirban Sudheer A. K. Kumar Sanjeev Verma Sangeeta Gaddam Mahesh Deshpande R. D. 《Environmental geochemistry and health》2021,43(10):4043-4059
Environmental Geochemistry and Health - Fluoride contamination in groundwaters of a rural region in semi-arid Western India has been studied using combination of geochemical-and-isotopic... 相似文献
118.
Testosterone manifests some protective effects against benzene-induced toxicity in rats. However, mechanism of protection remains to be established. Data showed that testosterone modulates conjugation of reactive metabolites of benzene by influencing phase-II enzymes viz. glutathione-S-transferase, glutathione peroxidase, and catalase in both liver and kidney. These observations are supported by the opposite results obtained in castrated rats. It is postulated that testosterone decreases the formation of reactive oxygen species resulting into an increase in phase-II enzymes. Enhanced activity of these antioxidant enzymes is responsible for DNA strand repair as demonstrated by short comet tail length in liver and kidney of benzene and testosterone treated rats. Castration alters benzene pharmacokinetics by influencing these enzymes, a response which may be abolished by testosterone supplementation. 相似文献
119.
Verma Y Rana SV 《Journal of environmental biology / Academy of Environmental Biology, India》2003,24(2):135-140
Metabolites viz. phenol, hippuric acid and total trichloro compounds of benzene, toluene and trichloroethylene respectively were estimated in the urine samples of male and female rats after exposure for a period of 30 days. The results exhibited higher metabolism in female rats than the male rats. Their metabolism might be regulated by cytochrome P450 isozymes in a gender specific manner. However, sex differences in the activity of glutathione-S-transferases of the liver have also been found to determine their toxicity. Results have been discussed with quantitative profiles of other enzymes established in the liver of male and female rats. 相似文献
120.
Verma Neha Pandit Soumya Gupta Piyush Kumar Kumar Sanjay Kumar Anil Giri Shiv Kumar Yadav Gulab Priya Kanu 《Environmental science and pollution research international》2022,29(21):30954-30966
Environmental Science and Pollution Research - Long-term exposure to organic solvents is known to affect human health posing serious occupational hazards. Organic solvents are genotoxic, and they... 相似文献