In vitro efficacy of plant extracts and synthesized substances on Rhipicephalus (Boophilus) Microplus (Acari: Ixodidae)

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dc.contributor.authorde Souza Chagas, Ana Carolina
dc.contributor.authorde Barros, Luiz Daniel [UNESP]
dc.contributor.authorCotinguiba, Fernando [UNESP]
dc.contributor.authorFurlan, Maysa [UNESP]
dc.contributor.authorGiglioti, Rodrigo [UNESP]
dc.contributor.authorde Sena Oliveira, Marcia Cristina
dc.contributor.authorBizzo, Humberto Ribeiro
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T14:20:12Z
dc.date.available2014-05-20T14:20:12Z
dc.date.issued2012-01-01
dc.description.abstractHerbal drugs have been widely evaluated as an alternative method of parasite control, aiming to slow development of resistance and obtain low-cost biodegradable parasiticides. This study evaluated the in vitro efficacy on Rhipicephalus (Boophilus) microplus of extracts from Carapa guianensis seed oil, Cymbopogon martinii and Cymbopogon schoenanthus leaf essential oil, and Piper tuberculatum leaf crude extract and similar synthesized substances. In the immersion test, engorged females were evaluated in five dilutions ranging from 10% to 0.030625% concentration. In the larval test on impregnated filter paper, the concentration ranged from 10% to 0.02%. The treatments and controls were done in three replicates. Chemical analysis of the oils was performed by gas chromatography. The main compounds were oleic acid (46.8%) for C. guianensis and geraniol for C. martinii (81.4%), and C. schoenanthus (62.5%). The isolated and synthesized substances showed no significant effect on larvae and adult. C. martinii and P. tuberculatum showed the best efficacy on the engorged females. The LC50 and LC90 were 2.93% and 6.66% and 3.76% and 25.03%, respectively. In the larval test, the LC50 and LC90 obtained for C. martinii, P. tuberculatum, and C. schoenanthus were 0.47% and 0.63%, 0.41% and 0.79%, 0.57% and 0.96%, respectively. The fact that geraniol is present in greater quantities in C. martinii explains its higher activity in relation to C. shoenanthus. It is necessary to validate the in vivo use of safe and effective phytoparasiticidal substances. Efforts should be focused on developing formulations that enhance the efficacy in vivo and lengthen the residual period.en
dc.description.affiliationEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Pecuaria Sudeste, São Paulo, Brazil
dc.description.affiliationUniv Estadual Paulista, São Paulo, Brazil
dc.description.affiliationEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Agroind Alimentos, Rio de Janeiro, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, São Paulo, Brazil
dc.format.extent295-303
dc.identifierhttp://dx.doi.org/10.1007/s00436-011-2488-z
dc.identifier.citationParasitology Research. New York: Springer, v. 110, n. 1, p. 295-303, 2012.
dc.identifier.doi10.1007/s00436-011-2488-z
dc.identifier.issn0932-0113
dc.identifier.lattes1308042794786872
dc.identifier.urihttp://hdl.handle.net/11449/26066
dc.identifier.wosWOS:000299521000035
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofParasitology Research
dc.relation.ispartofjcr2.558
dc.relation.ispartofsjr0,991
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleIn vitro efficacy of plant extracts and synthesized substances on Rhipicephalus (Boophilus) Microplus (Acari: Ixodidae)en
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
unesp.author.lattes1308042794786872
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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Artigos - Química Orgânica - IQ