Crosstalk between ethylene and abscisic acid during changes in soil water content reveals a new role for 1-Aminocyclopropane-1- Carboxylate in coffee anthesis regulation

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorLópez, Marlon Enrique-
Autor(es): dc.creatorSantos, Iasminy Silva-
Autor(es): dc.creatorGutiérrez, Robert Marquez-
Autor(es): dc.creatorMesa, Andrea Jaramillo-
Autor(es): dc.creatorCardon, Carlos Henrique-
Autor(es): dc.creatorLima, Juliana Maria Espíndola-
Autor(es): dc.creatorLima, André Almeida-
Autor(es): dc.creatorChalfun-Junior, Antonio-
Data de aceite: dc.date.accessioned2026-02-09T11:39:45Z-
Data de disponibilização: dc.date.available2026-02-09T11:39:45Z-
Data de envio: dc.date.issued2022-07-08-
Data de envio: dc.date.issued2022-07-08-
Data de envio: dc.date.issued2022-04-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/50524-
Fonte completa do material: dc.identifierhttps://doi.org/10.3389/fpls.2022.824948-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1144640-
Descrição: dc.descriptionCoffee (Coffea arabica L.) presents an asynchronous flowering regulated by an endogenous and environmental stimulus, and anthesis occurs once plants are rehydrated after a period of water deficit. We evaluated the evolution of Abscisic Acid (ABA), ethylene, 1-aminocyclopropane-1-carboxylate (ACC) content, ACC oxidase (ACO) activity, and expression analysis of the Lysine Histidine Transporter 1 (LHT1) transporter, in the roots, leaves, and flower buds from three coffee genotypes (C. arabica L. cv Oeiras, Acauã, and Semperflorens) cultivated under field conditions with two experiments. In a third field experiment, the effect of the exogenous supply of ACC in coffee anthesis was evaluated. We found an increased ACC level, low ACO activity, decreased level of ethylene, and a decreased level of ABA in all tissues from the three coffee genotypes in the re-watering period just before anthesis, and a high expression of the LHT1 in flower buds and leaves. The ethylene content and ACO activity decreased from rainy to dry period whereas the ABA content increased. A higher number of opened and G6 stage flower buds were observed in the treatment with exogenous ACC. The results showed that the interaction of ABA-ACO-ethylene and intercellular ACC transport among the leaves, buds, and roots in coffee favors an increased level of ACC that is most likely, involved as a modulator in coffee anthesis. This study provides evidence that ACC can play an important role independently of ethylene in the anthesis process in a perennial crop.-
Idioma: dc.languageen-
Publicador: dc.publisherFrontiers Media S.A.-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceFrontiers in Plant Science-
Palavras-chave: dc.subjectCoffee - Flowering-
Palavras-chave: dc.subjectLysine Histidine Transporter 1 (LHT1)-
Palavras-chave: dc.subjectDrought-
Palavras-chave: dc.subjectACC oxidase (ACO)-
Palavras-chave: dc.subjectHormonal signaling-
Palavras-chave: dc.subjectCafé - Floração-
Palavras-chave: dc.subjectTransportador Lisina-Histidina 1 (LHT1)-
Palavras-chave: dc.subjectSeca-
Palavras-chave: dc.subjectÁcido 1-carboxílico-1-aminociclopropano (ACC)-
Palavras-chave: dc.subjectSinalização hormonal-
Título: dc.titleCrosstalk between ethylene and abscisic acid during changes in soil water content reveals a new role for 1-Aminocyclopropane-1- Carboxylate in coffee anthesis regulation-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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