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Efficiency of Bacterial Isolates in the Degradation of Pesticides (Paperback)
Loot Price: R1,226
Discovery Miles 12 260
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Efficiency of Bacterial Isolates in the Degradation of Pesticides (Paperback)
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The soil sample was collected from the paddy field of Annamalai
Nagar which is having a history of repeated pesticide applications.
The isolation of pesticide degrading bacteria was carried out and
the isolated bacterial isolates were identified as Pseudomonas
fluorescens, Bacillus subtilis and Klebsiella sp. The growth of the
three pesticide degrading isolates was assessed in Minimal salt
broth containing 50ppm of pesticides. Four different pesticides
viz., Chlorpyrifos, Monocrotophos, Malathion and Parathion were
used in this study. Among the three bacterial isolates, the
bacteria Klebsiella sp. utilized the pesticides effectively and
showed maximum growth. The maximum growth rate of bacteria was
recorded at 35 C and pH 6. The growth of bacteria was maximum in
the presence of Dextrose followed by Fructose, Lactose and
Galactose. The least growth was recorded in Mannose. The growth of
bacteria was maximum in the presence of Malt extract followed by
Peptone, Yeast extract and Casein. The least growth was recorded in
Beef extract. The bacterial isolates showed maximum growth in the
Minimal salt broth containing Chlorpyrifos followed by
Monocrotophos, Parathion and Malathion."
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