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Your search keyword '"Gupta, Amit Kumar"' showing total 19 results
Start Over Author "Gupta, Amit Kumar" Publisher sage publications
19 results on '"Gupta, Amit Kumar"'

14. Book Reviews

Author

Srinivasan, Nirmala, primary, Lobo, Lancy, additional, Mehta, S.R., additional, Sharma, A.K., additional, Vishwanath, L.S., additional, Kumar, Anand, additional, Singh, Gyaneshwar Kumar, additional, Jain, Shobhita, additional, Thapan, Meenakshi, additional, Kaistha, Keshav C., additional, Sethi, Harsh, additional, Bhowmik, Sharit K., additional, Sharan, Raka, additional, Sinha, A.C., additional, Acharya, J., additional, Visvanathan, Susan, additional, Ghosh, Anjan, additional, Gupta, Surendra K., additional, Venktaratnam, R., additional, Madan, T.N., additional, Narender, A., additional, Giri, Anantha, additional, Haider, Saraswati, additional, Gupta, Amit Kumar, additional, Rajaram, N., additional, Pathak, Avijit, additional, Beteille, Andre, additional, Dak, T.M., additional, Meher, Raj Kishor, additional, Ferreira, J. V., additional, Kennedy, J. Michael, additional, and Nanda, Bikram N., additional

Published
1991
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16. Book Reviews

Author

Chauhan, Brij Raj, primary, Masihi, Edwin, additional, Nanda, Bikram, additional, Jain, Ravindra, additional, Panini, M. N., additional, Pathy, Jaganath, additional, Haq, Ehsanul, additional, Gupta, Amit Kumar, additional, Srtnivasan, Nirmala, additional, and Ahmad, Imtiaz, additional

Published
1976
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19. Effect of refinery waste effluent on tocopherol, carotenoid, phenolics and other antioxidants content in Allium cepa.

Author

Gupta AK and Ahmad M

Subjects
Analysis of Variance, Biomarkers analysis, Carotenoids analysis, Extraction and Processing Industry, Metals, Heavy analysis, Onions metabolism, Peroxides analysis, Phenols analysis, Plant Roots drug effects, Tocopherols analysis, Antioxidants analysis, Industrial Waste, Onions drug effects, Wastewater toxicity
Abstract

Pollution in water used for irrigation is a major cause of stress generation in plant system. Under these stress conditions, reactive oxygen species derived from molecular oxygen can accumulate in plant, resulting in the oxidation of nucleic acids, lipids, chlorophyll and so on. This study was conducted in Allium cepa to analyze the alteration in the levels of nonenzymatic antioxidants as a consequence of Mathura refinery waste water (MRWW) exposure. The studied antioxidants were glutathione (GSH) and ascorbic acid (ASC). Their determination was carried out in A. cepa bulbs exposed to different concentrations of MRWW that is 0.25×, 0.5×, 0.75× and 1.0×. A significant increase in the levels of these nonenzymatic antioxidants in onion bulbs upon treatment with MRWW suggested that these can serve as suitable biomarkers of toxicity. The toxicity of waste water was also tested on the level of tocopherol (Toc) and carotenoid (CAR) in onion bulbs, and in both the cases a high level of these metabolites was noticed. Phenolic content of A. cepa after the waste water insult was found to be increased, again a manifestation of adaptation against heavy metal and oxidative stress. It is clear from our findings that GSH, ASC, Toc and CAR in A. cepa system could serve as potential biomarkers for the presence of toxicants like heavy metals and its hazards in MRWW. The test waste water demonstrated profound effects on these parameters which is suggestive of the warrior strategies adopted by the plant system against the pollution-induced stress.

Published
2013
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