Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1150263
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dc.contributor.authorALMEIDA, A. S. de
dc.contributor.authorCOELHO, C. R.
dc.contributor.authorSA, M. S. de
dc.contributor.authorBENTO, E. de S.
dc.contributor.authorWISNIEWSKI JUNIOR, A.
dc.contributor.authorTEODORO, A. V.
dc.contributor.authorXAVIER, H. S.
dc.contributor.authorSENA FILHO, J. G. de
dc.date.accessioned2022-12-22T18:01:32Z-
dc.date.available2022-12-22T18:01:32Z-
dc.date.created2022-12-22
dc.date.issued2022
dc.identifier.citationAmerican Journal of Plant Sciences, v. 12, p. 1601-1612, 2021.
dc.identifier.issnOnline: 2158-2750; Print: 2158-2742
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1150263-
dc.descriptionThe coconut mite, Aceria guerreronis Keifer (Acari: Eriophyidae), is a major pest of coconut plantations (Cocos nucifera L.) worldwide. Here, we conducted a bioguided phytochemical approach using toxicity and repellency bioassays of nonpolar extract and its fractions of Vitex gardneriana Schauer (Lamiaceae) leaves to this pest. Nonpolar crude extract was fractionated by column chromatography using solvents with increased polarity and binary mixtures, resulting in five semipurified groups. The biomonitoring bioassay provided active fractions and led to the isolation and characterization of the bioactive compound squalene, a biosynthetic precursor of 20-hydroxyecdysone, which plays an important role in plant defense against arthropods. The LC50 of the crude extract of V. gardneriana for A. guerreronis was estimated to be 0.185 mg·mL-1 and LC80 = 4.123 mg·mL-1. Also, the extract was highly repellent to this pest for up to 24 h. The fractions of V. gardneriana, and also squalene, caused mortality to A. guerreronis. The potential of V. gardneriana fractions/squalene as biopesticides for controlling A. guerreronis in coconut plantations is discussed herein.
dc.language.isopor
dc.rightsopenAccess
dc.subjectToxidade
dc.subjectBiopesticida
dc.titleBiomonitoring the Vitex gardneriana Shauer (Lamiaceae) toxic effects to shed light on bioactive compounds against a major coconut pest mite.
dc.typeArtigo de periódico
dc.subject.thesagroCoco
dc.subject.thesagroÁcaro
dc.subject.thesagroPraga de Planta
dc.subject.thesagroControle Biológico
dc.subject.nalthesaurusCoconuts
dc.subject.nalthesaurusAceria
dc.subject.nalthesaurusMite control
dc.subject.nalthesaurusMites
riaa.ainfo.id1150263
riaa.ainfo.lastupdate2022-12-22
dc.contributor.institutionANDERSON SOARES DE ALMEIDA; CAROLINE RABELO COELHO; MIRELE SANTANA DE SA; EDSON DE SOUZA BENTO; ALBERTO WISNIEWSKI JUNIOR; ADENIR VIEIRA TEODORO, CPATC; HAROUDO SATIRO XAVIER; JOSE GUEDES DE SENA FILHO, CPATC.
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