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Toxic effects of coastal and marine plant extracts on mosquito larvae

DRS at CSIR-National Institute of Oceanography

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Title Toxic effects of coastal and marine plant extracts on mosquito larvae
 
Creator PrabhaDevi
Solimabi
DeSouza, L.
Kamat, S.Y.
 
Subject seaweed products
aquatic plants
mangrove swamps
chloroform
toxicity
Derris heterophylla
Salvadora persica
Halophila ovalis
Acanthophora muscoides
 
Description Petroleum-ether and chloroform soluble fractions of methanolic extracts of mangrove/plants (Derris heterophylla, Salvadora persica, Sonneratia caseolaris, Clerodendron inerme), seaweeds (Acanthophora muscoides, Microdictyon pseudohapteron), seagrass (Halophila ovalis, Syringodium isoetifolium), and a lichen (Umbilicaria aprine) were studied for their toxicity against larvae of the mosquito Culex quinquefasciatus. Petroleum-ether fractions (PE) were more effective than chloroform fractions (C) in all the nine samples tested. The PE fraction of the seaweed Microdictyon pseudohapteron was found to be most effective with LC sub(50) values of 50 mg L sup(-1) followed by Acanthophora muscoides (62.5 mg L sup(-1)). The PE fraction of Syringodium isoetifolium was effective at 450 mg L sup(-1). All other ractions showed activity at between 800 and 2000 mg L sup(-1). The C fractions of Derris heterophylla, Sonneratia caseolaris, Acanthophora muscoides, Halophila ovalis, Syringodium isoetifolium and Umbilicaria aprine were ineffective even at 2000 mg L sup(-1)
 
Date 2009-01-12T08:47:02Z
2009-01-12T08:47:02Z
1997
 
Type Journal Article
 
Identifier Botanica Marina, Vol.40; 533-535p.
http://drs.nio.org/drs/handle/2264/2001
 
Language en
 
Rights Copyright [1997]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
 
Publisher Walter de Gruyter, Berlin