Topic
Excoecaria agallocha
About: Excoecaria agallocha is a research topic. Over the lifetime, 362 publications have been published within this topic receiving 5042 citations. The topic is also known as: Gewa.
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TL;DR: In this article, the authors show results on litterfall dynamics contributing to Net Primary Productivity and phenology in three major mixed mangrove habitats in Cochin estuarine system, south-west coast of India.
22 citations
TL;DR: By analysis for the natural stable carbon isotoperatios, it was possible to establish the primary carbon source from the mangroves to that of larvae and juveniles of P. indicus and P. monodon, which can be used to exploit theMangrove habitat as prawnnurseries.
Abstract: The Godavari estuarine system extending over approximately 316 km2 has significant annual variation of salinity due to seasonal flooding which is mainly monsoon fed. This area has dense vegetation of mangroves and is characterised by predominance of Avicennia sp. Excoecaria agallocha and Rhizophora sp. In the coastal waters adjacent to the mangroves three economically important species of prawns occur (Penaeus monodon, P. indicus and Metapenaeus monoceros). Their larvae migrate and dwell in the mangrove environment. By analysis for the natural stable carbon isotope ratios, it was possible to establish the primary carbon source from the mangroves to that of larvae and juveniles of P. indicus and P. monodon. This information can be used to exploit the mangrove habitat as prawn nurseries.
22 citations
Journal Article•
TL;DR: Monthly variations in the content of gallotannin from the leaves of mangrove species were studied and the highest content was recorded in Ceriops decandra and Rhizophora spp.
Abstract: Monthly variations in the content of gallotannin from the leaves of ten mangrove species (Aegiceras corniculatum, Avicennia marina, A. officinalis, Bruguiera cylindrica, Ceriops decandra, Excoecaria agallocha, Lumnitzera racemosa, Rhizophora apiculata, R. lamarckii and R. mucronata) were studied. The highest content of gallotannin was recorded in Ceriops decandra and Rhizophora spp
21 citations
TL;DR: In this article, entisopimarane diterpenoids, agallochaols A (1) and B (2), were isolated from the dried stems and leaves of the mangrove Excoecaria agallaL. Their structures were established on the basis of spectroscopic data and chemical evidence.
Abstract: Two new ent-isopimarane diterpenoids, agallochaols A (1) and B (2), were isolated from the dried stems and leaves of the mangrove Excoecaria agallochaL. Their structures were established on the basis of spectroscopic data and chemical evidence.
21 citations
TL;DR: RAPD and RFLP analysis of male and female plants showed approximately the same level of variation in both sexes, and no sex-linked markers were found.
Abstract: Genomic DNA from 84 individuals of Excoecaria agallocha from seven mangrove populations were analysed for random amplified polymorphic DNAs (RAPDs) using 16 random 10-mer primers. Polymorphism within populations varied from 20% to 31%. At the interpopulation level, 111/149 (74%) of RAPDs were polymorphic. Restriction fragment length polymorphism (RFLP) analysis of 21 individuals (3 individuals randomly selected from the 7 populations) using 30 probe-enzyme combinations revealed a high level of interpopulation polymorphism (62.2%) indicating interpopulation genetic divergence. The polymorphic RAPDs and RFLPs were pooled, and clustering was carried out based on mean similarity for individual populations. The dendrogram showed groupings of populations from the West and East Coasts of India into separate clusters, at 60% similarity level. Further, RAPD and RFLP analysis of male and female plants showed approximately the same level of variation in both sexes, and no sex-linked markers were found. These results demonstrate that considerable intrapopulation and interpopulation genetic variations exist in E. agallocha, and that lack of genetic variation is not the reason for the morphological uniformity observed across the range of the species.
21 citations