Evaluation of molluscicidal activity of three mangrove species (Avicennia schaueriana, Laguncularia racemosa and Rhizophora mangle) and their effects on the bioactivity of Biomphalaria glabrata Say, 1818
AUTOR(ES)
Mendes, Renato Juvino de Aragão, Pereira Filho, Adalberto Alves, Nogueira, Aline de Jesus Lustosa, Araújo, Karla Regina Freitas, França, Clícia Rosane Costa, Carvalho, Iramar Borba de, Silva, Natale Maria Lindoso da, Azevedo, Alexandre Santana, Rosa, Ivone Garros
FONTE
Rev. Inst. Med. trop. S. Paulo
DATA DE PUBLICAÇÃO
15/02/2018
RESUMO
ABSTRACT Schistosomiasis is a disease of global extent reaching populations in social vulnerability. One of the control measures of this parasitosis is the use of molluscicidal substances that can fight snails of the genus Biomphalaria, intermediate hosts of Schistosoma mansoni. The aim of this work was to study the toxic activity of three mangrove species (Avicennia schaueriana Stapf. & Leech, ex Moldenke, 1939, Laguncularia racemosa (L.) CF Gaertn, 1807 and Rhizophora mangle L. 1753) on the biological activities of snails Biomphalaria glabrata. Hydroalcoholic extracts were prepared from the stem and leaves of each of the three plant species to which mollusks were exposed. The phytochemical analysis of plants showed the presence of important metabolites in the leaves and stems of L. racemosa and R. mangle, such as tannins and saponins, but the absence of these metabolites in A. schaueriana. Leaf and stem extracts of the three plant species showed low molluscicidal activity, not reaching the standards determined by the World Health Organization (WHO, 1983). L. racemosa and R. mangle has interfered with motility, feeding and oviposition of snails, unlike the extracts of A. schaueriana, which had no effect on these activities.
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- ESTUDO ANALÍTICO, AVALIAÇÃO DA TOXICIDADE E ATIVIDADE MOLUSCICIDA DO ÓLEO ESSENCIAL Cinnamomum zeylanicum Blume (CANELA) FRENTE AO CARAMUJO Biomphalaria glabrata (Say,1818)