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Isolation and
characterization of actinomycetes in Vellar Estuary,
Annagkoil, Tamil Nadu
D.
Dhanasekaran1*,
S. Selvamani 2, A. Panneerselvam3 and
N. Thajuddin4
1School
of Biotechnology, Chemical and Biomedical Engineering, VIT
University, Vellore-632 014,
India.
2Department
of Biotechnology, Arulmugu Kalasalingam College of
Engineering, Krishnan koil,
India.
3P.G.
and Research Department of Botany and Microbiology, A.V.V.M.
Sri Pushpam College
(Autonomous), Poondi, 613 503, Thanjavur District, Tamil
Nadu, India.
4Department
of Microbiology, Bharathidasan University,
Trichirapalli, 620 024, India.
*Corresponding author. E-mail:
dhansdd@yahoo.co.in
Accepted 22 February, 2008 |
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Vellar Estuary was investigated
as a source of actinomycetes to screen for production of
novel
bioactive compounds. The presence of relatively large
populations of Streptomyces in Vellar Estuary soil
samples indicates that it is an eminently suitable ecosystem
for actinomycetes. Actinomycetes counts ranged
12 x 104 cfu/g of soil. The actinomycetes isolated
from these ecosystems are capable of producing antibiotics
that strongly inhibit the growth of Gram positive and Gram-negative
bacteria and yeast like fungi. Further
cultural and
physiological characterization and DNA homology suggest that
strain DPTD-5 is identical to
Streptomyces bikiniensis.
Key words: Actinomycetes, estuary, characterization,
antimicrobial activity. |
