Mechanisms regulating bitter pit development in Greensleeves apples with suppression of ethylene biosynthesis.

Vista sencilla de ítem
dc.contributorSERGIO TONETTO DE FREITAS, CPATSA; CASSANDRO V. T. AMARANTE; ELIZABETH J. MITCHAM.
dc.creatorFREITAS, S. T. de
dc.creatorAMARANTE, C. V. T.
dc.creatorMITCHAM, E. J.
dc.date2015-07-24T11:11:11Z
dc.date2015-07-24T11:11:11Z
dc.date2015-07-24
dc.date2015
dc.date2016-03-07T11:11:11Z
dc.date.accessioned2026-07-07T05:43:44Z
dc.descriptionThe objectives of this study were to understand the role of ethylene and nutrients (Ca2+,Mg2+, K+ and N) on bitter pit (BP) development in wild type (GS) and ethylene suppressed (68G and 103Y) Greensleeves apples. The transgenic line 68G is suppressed for 1-aminocyclopropane-1-carboxylic acid (ACC) oxidase (ACO) and line 103Y is suppressed for ACC synthase (ACS). Suppression of ethylene biosynthesis reduced BP incidence and severity. Lower ethylene biosynthesis, in ethylene-suppressed genotypes, had no effect on Ca2+, Mg2+, K+ and N concentrations in fruit cortical tissue. In all genotypes, fruit with BP had lower Ca2+ and higher Mg2+ concentrations and higher Mg2+/Ca2+ ratio in cortical tissue. The results indicate that high levels of ethylene biosynthesis and Mg2+ in cortical tissue can enhance fruit susceptibility to BP incidence.
dc.format1 CD-ROM
dc.identifierIn: CONGRESSO BRASILEIRO DE PROCESSAMENTO MÍNIMO E PÓS COLHEITA DE FRUTAS, FLORES E HORTALIÇAS, 1.; SIMPÓSIO BRASILEIRO DE PÓS-COLHEITA, FRUTAS, HORTALIÇAS E FLORES, 5.; ENCONTRO NACIONAL SOBRE PROCESSAMENTO MÍNIMO DE FRUTAS E HORTALIÇAS, 8., 2015, Aracaju. Avanço na conservação e qualidade de frutas, flores e hortaliças: anais. Aracaju: Universidade Federal de Sergipe: Embrapa, 2015.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1020458
dc.identifier.urihttp://hdl.handle.net/123456789/498720
dc.languageeng
dc.rightsopenAccess
dc.subjectACCO
dc.subjectACCS
dc.subjectDesordem fisiológica
dc.subjectApple
dc.subjectPhysiological disorder
dc.subjectMaçã
dc.subjectCálcio
dc.subjectDistúrbio Fisiológico
dc.subjectMalus Domestica
dc.subjectBitter pit
dc.subjectApples
dc.titleMechanisms regulating bitter pit development in Greensleeves apples with suppression of ethylene biosynthesis.
dc.typeArtigo em anais e proceedings

Archivos

Colecciones

Embrapa Semi-Árido (CPATSA)