Multigenic regulation in the ethylene biosynthesis pathway during coffee flowering

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorSantos, Iasminy Silva-
Autor(es): dc.creatorRibeiro, Thales Henrique Cherubino-
Autor(es): dc.creatorOliveira, Kellen Kauanne Pimenta de-
Autor(es): dc.creatorSantos, Jacqueline Oliveira dos-
Autor(es): dc.creatorMoreira, Rafael Oliveira-
Autor(es): dc.creatorLima, Renato Ribeiro-
Autor(es): dc.creatorLima, André Almeida-
Autor(es): dc.creatorChalfun Junior, Antonio-
Data de aceite: dc.date.accessioned2026-02-09T11:17:08Z-
Data de disponibilização: dc.date.available2026-02-09T11:17:08Z-
Data de envio: dc.date.issued2023-03-31-
Data de envio: dc.date.issued2023-03-31-
Data de envio: dc.date.issued2022-10-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/56462-
Fonte completa do material: dc.identifierhttps://doi.org/10.1007/s12298-022-01235-y-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1137591-
Descrição: dc.descriptionEthylene regulates different aspects of the plant’s life cycle, such as flowering, and acts as a defense signal in response to environmental stresses. Changes induced by water deficit (WD) in gene expression of the main enzymes involved in ethylene biosynthesis, 1-aminocyclopropane-1-carboxylic acid synthase (ACS) and oxidase (ACO), are frequently reported in plants. In this study, coffee (Coffea arabica) ACS and ACO family genes were characterized and their expression profiles were analyzed in leaves, roots, flower buds, and open flowers from plants under well-watered (WW) and water deficit (WD) conditions. Three new ACS genes were identified. Water deficit did not affect ACS expression in roots, however soil drying strongly downregulated ACO expression, indicating a transcriptional constraint in the biosynthesis pathway during the drought that can suppress ethylene production in roots. In floral buds, ACO expression is water-independent, suggesting a higher mechanism of control in reproductive organs during the final flowering stages. Leaves may be the main sites for ethylene precursor (1-aminocyclopropane-1-carboxylic acid, ACC) production in the shoot under well-watered conditions, contributing to an increase in the ethylene levels required for anthesis. Given these results, we suggest a possible regulatory mechanism for the ethylene biosynthesis pathway associated with coffee flowering with gene regulation in leaves being a key point in ethylene production and ACO genes play a major regulatory role in roots and the shoots. This mechanism may constitute a regulatory model for flowering in other woody species.-
Idioma: dc.languageen-
Publicador: dc.publisherSpringer Nature-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourcePhysiology and Molecular Biology of Plants-
Palavras-chave: dc.subjectACC oxidase-
Palavras-chave: dc.subjectACC synthase-
Palavras-chave: dc.subjectAnthesis-
Palavras-chave: dc.subjectCoffea arabica-
Palavras-chave: dc.subjectRT-qPCR-
Palavras-chave: dc.subjectWater defcit-
Palavras-chave: dc.subjectCafeicultura-
Palavras-chave: dc.subjectCafé - Maturação-
Palavras-chave: dc.subjectEtileno-
Palavras-chave: dc.subjectDéficit hídrico-
Título: dc.titleMultigenic regulation in the ethylene biosynthesis pathway during coffee flowering-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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