Larvicidal activity of Ramalina usnea lichen against Aedes aegypti
Rev. bras. farmacogn
;
26(4): 530-532, July-Aug. 2016. tab, graf
Article
in English
| LILACS
| ID: biblio-1042248
ABSTRACT
ABSTRACT The larvicidal activity of the methanol extract, fractions and compounds 2-hydroxy-4-methoxy-6-propyl-methyl benzoate and (+)-usnic acid identified from the lichen Ramalina usnea (L.) R. Howe, Ramalinaceae, was tested against the third instar larvae of the Aedes aegypti mosquito. The methanol extract and three fractions showed activity, killing 100% and 96.6% of the larvae at a concentration of 150 µg/ml at 24 h. The isolated compounds, 2-hydroxy-4-methoxy-6-propyl-methyl benzoate and the (+)-usnic acid showed larvicidal activity, presenting LC50 values of 4.85 and 4.48 µg/ml, respectively. This is the first study of its kind reporting the larvicidal activity against the A. aegypti mosquito with compound (1).
Full text:
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Index:
LILACS (Americas)
Language:
English
Journal:
Rev. bras. farmacogn
Journal subject:
Pharmacy
Year:
2016
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Faculdade de Medicina de Campos/BR
/
Universidade Estadual do Norte Fluminense Darcy Ribeiro/BR
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