Browsing by Author "Dubey, Sheetal"

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    Chlorpyrifos degrading potential of a Bacterial isolate from Thermal Power Plant Soil
    (World Research Association, 2023-01-27T00:00:00) Dubey, Sheetal; Dhanya, M.S.
    The pesticides had a significant role in crop protection and in agricultural production. The organophosphate pesticides are used against many crop pests. But the injudicious application results in residues of organophosphate pesticides in soil routed to food chain by different means and affect the human health. There is a great need for remediation of the toxic residues from the environment. The microbial bioremediation is a safe and eco-friendly technique for pesticide removal. The present study focused on the degradation ability of a bacterium previously isolated from the soil contaminated with fly ash from coal based thermal power plant. The 16S rRNA sequencing confirmed the bacterium as Lysinibacillus fusiformis. The chlorpyrifos utilization capability of the isolated bacterium was studied in mineral salt medium supplemented with 50 mg L-1 chlorpyrifos as sole carbon source at 30oC and 120 rpm for 15 days. The bacterium was able to grow in the medium with the production of alkaline phosphatase and reduction in pH of the growth media. The bacterium degraded 16.54 percent of chlorpyrifos in 15 days. The chlorpyrifos utilization for bacterial biomass production confirmed the in situ biodegradation ability of the bacterium. � 2023 World Research Association. All rights reserved.
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    Status, Issues, and Challenges of Biodiversity: Marine Biota
    (Springer Nature, 2022-09-15T00:00:00) Yadav, Digvijay Singh; Rani, Alka; Dubey, Sheetal; Bast, Felix
    India is one of the mega biodiversity countries, owing to its tropical location and warm climate. With more than 7500 km, India is blessed with a long coastline-one of the longest in the world. However, marine biodiversity remains poorly documented compared with that of terrestrial biodiversity. On top of it, the threats from climate change are imminent and have already started wreaking havoc on species diversity, for instance, ocean acidification causing coral bleaching in the atolls of the Laccadive Islands. A systematic approach to acquiring complete and exhaustive knowledge about marine biodiversity may help us understand the extent of anthropogenic damage and take appropriate actions and policies to prevent further loss. Currently, we merely know the tip of the global biodiversity iceberg; with merely 1.3 million species characterized yet, estimates suggest there might be around 9 million species of eukaryotes alone. Conserving biodiversity is crucial not only for ecosystem services but also for future generations as a possible revenue generator-the so called bequest value. This chapter reviews the status of marine biodiversity along India�s coasts, efforts on its economic utilization, and the impact of climate change. � Indian National Science Academy 2022.
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    Status, Issues, and Challenges of Biodiversity: Marine Biota
    (Springer Nature, 2022-09-15T00:00:00) Yadav, Digvijay Singh; Rani, Alka; Dubey, Sheetal; Bast, Felix
    India is one of the mega biodiversity countries, owing to its tropical location and warm climate. With more than 7500 km, India is blessed with a long coastline-one of the longest in the world. However, marine biodiversity remains poorly documented compared with that of terrestrial biodiversity. On top of it, the threats from climate change are imminent and have already started wreaking havoc on species diversity, for instance, ocean acidification causing coral bleaching in the atolls of the Laccadive Islands. A systematic approach to acquiring complete and exhaustive knowledge about marine biodiversity may help us understand the extent of anthropogenic damage and take appropriate actions and policies to prevent further loss. Currently, we merely know the tip of the global biodiversity iceberg; with merely 1.3 million species characterized yet, estimates suggest there might be around 9 million species of eukaryotes alone. Conserving biodiversity is crucial not only for ecosystem services but also for future generations as a possible revenue generator-the so called bequest value. This chapter reviews the status of marine biodiversity along India�s coasts, efforts on its economic utilization, and the impact of climate change. � Indian National Science Academy 2022.