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Madhan Chakkaravarthy, V.
- Assessment of Microbial Disease on Corals and Its Prevalence in Andaman Islands
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Authors
Affiliations
1 Zoological Survey of India, Andaman and Nicobar Regional Centre, National Coral Reef Research Institute, Port Blair – 744 102, Andaman and Nicobar Islands, IN
2 Zoological Survey of India, Andaman and Nicobar Regional Centre, National Coral Reef Research Institute, Port Blair – 744 102, Andaman and Nicobar Islands, IN
1 Zoological Survey of India, Andaman and Nicobar Regional Centre, National Coral Reef Research Institute, Port Blair – 744 102, Andaman and Nicobar Islands, IN
2 Zoological Survey of India, Andaman and Nicobar Regional Centre, National Coral Reef Research Institute, Port Blair – 744 102, Andaman and Nicobar Islands, IN
Source
Research Journal of Science and Technology, Vol 3, No 2 (2011), Pagination: 65-69Abstract
Coral reefs are the most diverse and productive ecosystems on the earth. Eight diseases such as black band, brown band, yellow band, white syndrome, white pox, pink spot and pink line syndrome were reported in corals at different ratio around the islands. Overall coral disease prevalence was 53.3%. With the maximum at South Andaman (59.8%) followed by Middle Andaman (56.6%) and North Andaman (43.7%). The similarity index between the islands ranged from 0.18 to 0.50 %. Coral disease and its prevalence were discussed in detail.Keywords
Coral Disease, Prevalence, Outbreak, Andaman Islands, Pollution.- HPTLC Finger Print Analysis of Steroid, Flavonoid and Antiradical activity in Sargassum wightii from Gulf of Mannar
Abstract Views :235 |
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Authors
Affiliations
1 P.G. and Research Department of Plant Biology and Biotechnology, Botany Res, Laboratory, V. O. Chidambaram College, Tuticorin, 628 008, Tamil Nadu, IN
2 P.G. and Research Department of Plant Biology and Biotechnology, Botany Res., Laboratory, V. O. Chidambaram College, Tuticorin, 628 008, Tamil Nadu, IN
1 P.G. and Research Department of Plant Biology and Biotechnology, Botany Res, Laboratory, V. O. Chidambaram College, Tuticorin, 628 008, Tamil Nadu, IN
2 P.G. and Research Department of Plant Biology and Biotechnology, Botany Res., Laboratory, V. O. Chidambaram College, Tuticorin, 628 008, Tamil Nadu, IN
Source
Research Journal of Pharmacognosy and Phytochemistry, Vol 3, No 2 (2011), Pagination: 72-74Abstract
The aim of this research was to estimate the steroid, flavonoid and antiradical activity of brown seaweed Sargassum wightii. The HPTLC analysis reveals the presence of polyphenolic signals at different ranges. The steroid and flavonoid content of ethanolic extract was observed in 0.35 Rf and presence of flavonoid in the given standard but not in the sample respectively. Scavenging activity was observed from 05 to 20mg/ml, 24 ± 1.3; 41.3 ± 2.4; 63.5 ± 2.3 and 73.1 ± 1.7, which showed significance of the active principles in S. wightii.