Characterization and potential mechanisms of resistance of cucumber genotypes toBemisia tabaci(Hemiptera: Aleyrodidae)

dc.contributor.authorNovaes, Natalia S.
dc.contributor.authorLourencao, Andre L.
dc.contributor.authorBentivenha, Jose P. F.
dc.contributor.authorBaldin, Edson L. L. [UNESP]
dc.contributor.authorMelo, Arlete M. T.
dc.contributor.institutionAgron Inst Campinas
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2020-12-10T17:35:15Z
dc.date.available2020-12-10T17:35:15Z
dc.date.issued2020-06-22
dc.description.abstractBemisia tabaci(Genn.) (Hemiptera: Aleyrodidae) is a major pest of several agricultural crops, being vector of an extreme number of viruses. The broad variety of host plants, high adaptability and evolution of resistance to insecticides evidence the difficult in the management ofB. tabaciin the agriculture system. Host plant resistance is a valuable and sustainable method of insect management. To date, few studies have characterized the resistance of cucumber (Cucumis sativusL.) genotypes toB. tabaci, although this plant is one of the most preferred host of this hemipteran. The objective of this study was to assess the resistance of 60 cucumber genotypes againstB. tabaciin greenhouse and laboratory conditions and to characterize the mechanisms of resistance involved based on morphological and physical plant parameters. Initially, 12 genotypes were selected in a screening bioassay. In general, 'IAC-1214' expressed high levels of antixenosis to the insect, causing low attractiveness to adults and non-preference for oviposition and colonization. 'Wellington' prolonged the development of the insect and provoked low levels of adult emergence, expressing levels of antibiosis. Antibiosis and/or antixenosis were detected in 'IAC-1201', 'Campeiro', 'Japones', and 'IAC-1311', while antixenosis was detected in 'Kyria' and 'IAC-1175'. The density of the trichomes and the color of the leaves are described and discussed here. The selected genotypes present potential application in integrated programs that focus on reducing populations ofB. tabaciin the agricultural system and in breeding programs aiming to explore resistant genotypes against the insect.en
dc.description.affiliationAgron Inst Campinas, BR-13012970 Campinas, SP, Brazil
dc.description.affiliationUniv Sao Paulo, Luiz de Queiroz Coll Agr, Dept Entomol & Acarol, BR-13418900 Piracicaba, SP, Brazil
dc.description.affiliationSao Paulo State Univ, Coll Agron Sci, Dept Crop Protect, BR-18610307 Botucatu, SP, Brazil
dc.description.affiliationUnespSao Paulo State Univ, Coll Agron Sci, Dept Crop Protect, BR-18610307 Botucatu, SP, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.format.extent643-657
dc.identifierhttp://dx.doi.org/10.1007/s12600-020-00826-3
dc.identifier.citationPhytoparasitica. Dordrecht: Springer, v. 48, n. 4, p. 643-657, 2020.
dc.identifier.doi10.1007/s12600-020-00826-3
dc.identifier.issn0334-2123
dc.identifier.urihttp://hdl.handle.net/11449/195458
dc.identifier.wosWOS:000542108900001
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofPhytoparasitica
dc.sourceWeb of Science
dc.subjectAntibiosis
dc.subjectAntixenosis
dc.subjectTrichomes
dc.subjectLeaf color parameters
dc.subjectSweet potato whitefly
dc.titleCharacterization and potential mechanisms of resistance of cucumber genotypes toBemisia tabaci(Hemiptera: Aleyrodidae)en
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer

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