Effects of soybean Kunitz inhibitor on the cotton boll weevil (Anthonomus grandis).

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dc.creatorFRANCO, O. L.
dc.creatorDIAS, S. C.
dc.creatorMAGALHÃES, C. P.
dc.creatorMONTEIRO, A. C. S.
dc.creatorBLOCH JÚNIOR, C.
dc.creatorMELO, F. R.
dc.creatorOLIVEIRA-NETO, O. B.
dc.creatorMONNERAT, R. G.
dc.creatorGROSSI-de-SÁ, M. F.
dc.date2022-05-06T19:12:26Z
dc.date2022-05-06T19:12:26Z
dc.date2005-03-21
dc.date2004
dc.date.accessioned2026-07-07T11:53:25Z
dc.descriptionThe cotton boll weevil, Anthonomus grandis, is an economically important pest of cotton in tropical and subtropical areas of several countries in the Americas, causing severe losses due to their damage in cotton floral buds. Enzymatic assays using gut extracts from larval and adult boll weevil have demonstrated the presence of digestive serine proteinase-like activities. Furthermore, in vitro assays showed that soybean Kunitz trypsin inhibitor (SKTI) was able to inhibit these enzymes. Previously, in vivo effects of black-eyed pea trypsin chymotrypsin inhibitor (BTCI) have been demonstrated towards the boll weevil pest. Here, when neonate larvae were reared on an artificial diet containing SKTI at three different concentrations, a reduction of larval weight of up to 64% was observed for highest SKTI concentration 500 M. The presence of SKTI caused an increase in mortality and severe deformities of larvae, pupae and adult insects. This work therefore represents the first observation of a Kunitz trypsin inhibitor active in vivo and in vitro against A. grandis. Bioassays suggested that SKTI could be used as a tool in engineering crop plants, which might exhibit increased resistance against cotton boll weevil.
dc.identifierPhytochemistry, v. 65, n. 1, p. 81-89, 2004.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/185558
dc.identifier.urihttp://hdl.handle.net/123456789/516436
dc.languageeng
dc.rightsopenAccess
dc.subjectKunitz trypsin inhibitor
dc.subjectAlgodão
dc.subjectAnthonomus Grandis
dc.subjectSoja
dc.titleEffects of soybean Kunitz inhibitor on the cotton boll weevil (Anthonomus grandis).
dc.typeArtigo de periódico

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