alexa Abstract | CHARACTERIZATION OF BACTERIAL DIVERSITY IN MARINE SEDIMENT AT DIFFERENT SEASONS IN KARANKADU, TAMILNADU, INDIA

International Journal of Pure and Applied Zoology
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Abstract

Microbes in diverse communities interact with other organisms and its environment, making their impact difficult to predict. Marine organisms have offered an endless list of novel bioactive metabolites. In search of new bioactive entities, investigation was expanded to marine habitats including marine sediments and organisms. In the present study, the soil sample was collected from Karankadu, located in east coast of Thanjavur District at four different seasons viz., post monsoon, summer, premonsoon and monsoon, and investigation were carried out. Four soil samples were subjected to physico-chemical analysis. Seasonal variations of different parameters investigated were as follows: pH (7.29-7.63), Electrical conductivity (0.26-0.52 Dsm-1), Organic carbon (0.42-0.60% ), Clay (10.36-18.54) and other soil parameters such as available Nitrogen and Phosphorous (84.2-95.60Kg/ac and 3.25-3.75 Kg/ac, available micronutrients (ppm) such as Zinc, Copper, Iron, Manganese (0.74-0.89,0.78-1.05,4.85-8.23,3.15-3.48) respectively and the presence of heavy metal were also analyzed for all different four seasons. pH, temperature, clay and organic matter indicated a correlation at P<0.01. Spatial and seasonal fluctuations of twenty five important groups of bacterial isolates were evaluated from the marine sediments during different seasons, along with soil physico-chemical parameters. Determination of bacterial diversity in the Karankura marine soil by culture method showed the predominance of bacterial genera such as Melissococcus sp., Marinococcus albus, Salinococcus sp., Rohella sp., Oscillospira sp., Saccharococcus sp., Sulfidobacillus sp., Brucella sp., Plannococcus sp., Edwardsiella sp., Brochothrix sp., Veillonella sp. and Syntrophococcus sp.

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Author(s): R KALAIVANI AND V SUKUMARAN

Keywords

Physico-chemical parameters, sediment, seasonal fluctuations, organic carbon, soil nutrients.

 
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