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Damodara Chari, K.
- Isolation and Screening for Efficiency of Organic Phosphorus Pesticide (Chlorpyriphos) Degrading Bacteria from Different Crops
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Authors
Affiliations
1 Department of Agricultural Microbiology and Bioenergy, College of Agriculture, Prof. Jaya Shankar Telangana State Agricultural University, Rajendranagar, Hyderabad - 500 030, Telangana, IN
1 Department of Agricultural Microbiology and Bioenergy, College of Agriculture, Prof. Jaya Shankar Telangana State Agricultural University, Rajendranagar, Hyderabad - 500 030, Telangana, IN
Source
Nature Environment and Pollution Technology, Vol 16, No 1 (2017), Pagination: 169-173Abstract
In the present study total eight bacterial isolates were isolated from vegetable crops like tomato, brinjal by the enriched MSM broth with a supplement of chlorpyrifos source. These isolates were characterized morphologically, cultural and biochemically. Isolates of the microbial strains for identifying those having high chlorpyrifos degradation capabilities in liquid culture were undertaken as well. Among the eight chlorpyrifos bacterial isolates, CDB-1 showed the high population count at different incubation periods (1st day to 5th day) compared to all CDB inoculates. The CDB-1 isolate utilized the pesticide (chlorpyrifos) effectively and showed maximum growth bacterial count 5.8 cfu ×106 mL-1. Efficient CDB-1 isolate and chlorpyrifos degrading capacity were determined with measurement of chlorpyrifos residual concentrations at different days of intervals using gas chromatographic method. The degradation of chlorpyrifos at different concentrations (20, 30 and 40 mgL-1) was examined in the MSL medium. By this degradation percentage study of chlorpyrifos revealed that the chlorpyrifos degrading bacterial isolate (CDB-1) degrade the chlorpyrifos effectively. These isolates used the OP compounds as a carbon source.Keywords
Chlorpyrifos Degradation, Minimal Salt Medium, Biochemical Characterization, Pesticide Degradation Ability.Full Text
References
- Dhanya, M.S. 2014. Advances in microbial biodegradation of Chlorpyrifos. Journal of Environmental Research and Development, 9(1).
- Fulekar, M.H. and Geetha, M. 2008. Bioremediation of chlorpyrifos by Pseudomonas aeruginosa using scale up technique. Journal of Applied Biosciences, 12: 657-660.
- Guliy, O.I., Ignatov, O.V., Makarov, O.E and Ignatov, V.V. 2003. Determination of organophosphorus aromatic nitro insecticides and p-nitrophenol by microbial-cell respiratory activity. Biosensors and Bioelectronics, 18: 1005-1013.
- Jayashree, R. and Vasudevan, N. 2006. Organochlorine pesticide residues in ground water of Thiruvallur district, India. Environmental Monitoring and Assessment, 128: 209-215.
- Maria, C., Diez and Maria, J., Amoroso. 2013. Enhanced removal of a pesticides mixture by single cultures and consortia of free and immobilized Streptomyces strains. Hindawi Publishing Corporation Bio Med Research International Volume, Article ID 392573, 9 pages.
- Rasul, C.G., Ali, A.N. and Wheeler, W.B. 1988. Isolation of a methyl parathion-degrading Pseudomonas sp. that possess DNA homologous to the OPD gene from a Flovobacterium sp. Applied Environmental Microbiology, 54: 288-293.
- Singh, B. K and Walker, A. 2006. Microbial degradation of organophosphorus compounds. Federation of European Microbiological Societies Microbiology Reviews, 30(3): 428-71.
- Improvement of Heavy Metals Removing Ability of Spinach with Microbial Enrichment
Abstract Views :112 |
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Authors
Alavala Uma Rajshekhar
1,
R. Subhash Reddy
1,
P. Chandrasekhar Rao
2,
M. Chandini Patnaik
3,
K. Damodara Chari
1
Affiliations
1 Department of Agricultural Microbiology and Bioenergy, Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad-500 030, IN
2 Department of Soil Science and Agricultural Chemistry, College of Agriculture, Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad-500 030, IN
3 AICRP on Micronutrients Soil and Plants, Telangana, IN
1 Department of Agricultural Microbiology and Bioenergy, Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad-500 030, IN
2 Department of Soil Science and Agricultural Chemistry, College of Agriculture, Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad-500 030, IN
3 AICRP on Micronutrients Soil and Plants, Telangana, IN
Source
Nature Environment and Pollution Technology, Vol 16, No 3 (2017), Pagination: 857-860Abstract
The present study was conducted to determine the uptake and accumulation of heavy metals in different parts of vegetable crop spinach and also reduction in heavy metals in the soil due to microbial inoculation. The polybag experiment was conducted following complete randomized block design with 12 treatments and three replications in polluted soil with supply of freshwater, unpolluted soil with supply of freshwater, unpolluted soil with supply of polluted water. The heavy metal concentration of soil, shoot and leaves revels that the nickel and cobalt were more in soil in the treatments T10 (Soil + FYM + VAM + Pseudomonas) and T2 (SF Soil + FYM + VAM + Pseudomonas). In the shoot, the nickel accumulated more in the treatment T9 (Soil + FYM), cobalt accumulated more in the treatment T8 (SF Soil + RDF + FYM + VAM + Pseudomonas) and cadmium accumulated more in the in treatment T12 (Soil + RDF + FYM + VAM + Pseudomonas). The heavy metal accumulation in the leaves showed that nickel accumulated more in the treatment T12, cobalt accumulated more in the treatment T9 (Soil + FYM) and cadmium accumulated more in the treatment T8 (Soil + RDF + FYM + VAM + Pseudomonas).Keywords
Microbial Cultures, Polluted and Unpolluted Soil, Spinach,Heavy Metals, Phytoremediation.Full Text