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dc.creatorLópez, Marlon Enrique-
dc.creatorSantos, Iasminy Silva-
dc.creatorGutiérrez, Robert Marquez-
dc.creatorMesa, Andrea Jaramillo-
dc.creatorCardon, Carlos Henrique-
dc.creatorLima, Juliana Maria Espíndola-
dc.creatorLima, André Almeida-
dc.creatorChalfun-Junior, Antonio-
dc.date.accessioned2022-07-08T19:03:20Z-
dc.date.available2022-07-08T19:03:20Z-
dc.date.issued2022-04-
dc.identifier.citationLÓPEZ, M. E. et al. 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. Frontiers in Plant Science, [S.I.], v. 13, Apr. 2022. DOI: 10.3389/fpls.2022.824948.pt_BR
dc.identifier.urihttps://doi.org/10.3389/fpls.2022.824948pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/50524-
dc.description.abstractCoffee (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.pt_BR
dc.languageenpt_BR
dc.publisherFrontiers Media S.A.pt_BR
dc.rightsrestrictAccesspt_BR
dc.sourceFrontiers in Plant Sciencept_BR
dc.subjectCoffee - Floweringpt_BR
dc.subjectLysine Histidine Transporter 1 (LHT1)pt_BR
dc.subjectDroughtpt_BR
dc.subjectACC oxidase (ACO)pt_BR
dc.subjectHormonal signalingpt_BR
dc.subjectCafé - Floraçãopt_BR
dc.subjectTransportador Lisina-Histidina 1 (LHT1)pt_BR
dc.subjectSecapt_BR
dc.subjectÁcido 1-carboxílico-1-aminociclopropano (ACC)pt_BR
dc.subjectSinalização hormonalpt_BR
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 regulationpt_BR
dc.typeArtigopt_BR
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