Morpho-anatomical characterization, gene expression and protein cell wall modifications associated with natural finger drop in bananas

Vista sencilla de ítem
dc.creatorMarciene Amorim Rodrigues
dc.creatorClaudia Fortes Ferreira
dc.creatorEdson Perito Amorim
dc.creatorRogério Mercês Ferreira Santos
dc.creatorFabiano Machado Martins
dc.creatorCarlos Alberto da Silva Ledo
dc.creatorTaliane Leila Soares
dc.creatorJosé Raniere Ferreira de Santana
dc.date2023
dc.date.accessioned2026-07-07T03:53:01Z
dc.descriptionBanana (Musa spp.) is one of the main fruits consumed worldwide. However, finger drop, is a physiological disorder that causes many postharvest problems, which eventually reduces market value and consumer acceptance. Therefore, the objective of the study was to evaluate the anatomical changes that occur in the pedicel rupture area (drop zone) of bananas diploids (BB França) and tetraploid (BRS Pioneira) in three ripening stages. The levels of gene expression involved in the natural ripening process and in the development of finger drop, was also investigated. The accumulation of their mRNAs and those of expansin (EXP1), pectate lyase (PEL1) and xyloglucan endotransglucosylase/hydrolase protein (XTH4) genes already isolated from bananas were measured by quantitative polymerase chain reaction in three ripening stages. BB França presented a higher resistance to finger drop due to the presence of some specific morphoanatomical characteristics, such as larger parenchymal cells and greater deposition of lignin. In contrast, there was degeneration of the pedicel parenchymal tissue of the BRS Pioneira genotype, forming large empty spaces during the ripening of the fruits, mainly in stage 6, which contributed to the finger drop. The diploid BB França is a strong candidate for use in banana breeding programs aimed at fruit drop resistance. This will certainly improve the quality of banana varieties. Moreover, PEL1 proved to be an excellent candidate gene for functional studies of finger drop in bananas.
dc.formatapplication/pdf
dc.identifier1679-9275
dc.identifierhttps://www.redalyc.org/articulo.oa?id=303075473033
dc.identifierhttps://www.redalyc.org/journal/3030/303075473033/
dc.identifierhttps://www.redalyc.org/journal/3030/303075473033/html/
dc.identifierhttps://www.redalyc.org/journal/3030/303075473033/303075473033.epub
dc.identifierhttps://www.redalyc.org/journal/3030/303075473033/movil
dc.identifier10.4025/actasciagron.v45i1.58336
dc.identifier.urihttp://hdl.handle.net/123456789/446025
dc.languageen
dc.publisherUniversidade Estadual de Maringá
dc.relationhttp://www.redalyc.org/revista.oa?id=3030
dc.rightsActa Scientiarum. Agronomy
dc.sourceActa Scientiarum. Agronomy (Brasil) Vol.45
dc.subjectAgrociencias
dc.titleMorpho-anatomical characterization, gene expression and protein cell wall modifications associated with natural finger drop in bananas
dc.typeartículo científico

Archivos

Colecciones

Acta Scientiarum. Agronomy - Universidade Estadual de Maringá