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Indian Journal of Geo-Marine Sciences (IJMS) >
IJMS Vol.40 [2011] >
IJMS Vol.40(3) [June 2011] >
| Title: | Diversity of Bacillus and Actinomycetes in the water and sediment samples from Kumarakom region of Vembanadu lake |
| Authors: | George, Maya
Cyriac, Neethu
Nair, Aswathi
M, Hatha A A |
| Keywords: | Wetlands
Microbial Diversity
Bacillus
Actinomycetes
Hydrolytic enzymes
Antibacterial activity |
| Issue Date: | Jun-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Diversity of different groups of Bacillus and Actinomycetes in the water and sediment samples from Kumarakom
estuary was analyzed to find out potential strains for further application. Bacillus genera were identified and
grouped into five phenogroups such as Bacillus polymyxa, Bacillus subtilis, Bacillus sphaericus, Thermophiles and Alicyclobacillus.
Phenogroups show differences in the
shape of the spore (oval or spherical), position of the spore (central or
terminal) and swelling of the sporangium. Ability of the isolates to
elaborate various hydrolytic enzymes and their ability to reduce
nitrate and ferment various carbohydrate sources were also studied. Different
plating media such as glycerol arginine agar, starch-casein agar and soil
extract agar were used to isolate the Actinomycetes.
Glycerol arginine agar found to be superior to the other two plating media.
Diversity of Actinomycetes was less
when compared to that of Bacillus
genera. Potential
of the Actinomycetes to produce
antibiotics were evaluated by well diffusion method against 6 serotypes of Salmonella, Vibrio parahaemolyticus
and Escherichia coli. |
| Page(s): | 430-437 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1033 (Online); 0379-5136 (Print) |
| Source: | IJMS Vol.40(3) [June 2011]
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