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Ethylene Response Factors Are Controlled by Multiple Harvesting Stresses in Hevea brasiliensis.
Putranto, Riza-Arief; Duan, Cuifang; Chaidamsari, Tetty; Rio, Maryannick; Piyatrakul, Piyanuch; Herlinawati, Eva; Pirrello, Julien; Dessailly, Florence; Leclercq, Julie; Bonnot, François; Tang, Chaorong; Hu, Songnian; Montoro, Pascal.
Afiliação
  • Putranto RA; CIRAD, UMR DAP, Montpellier, France; IBRIEC, Bogor, Indonesia.
  • Duan C; CIRAD, UMR DAP, Montpellier, France; RRI, CATAS, Danzhou, Hainan, China.
  • Kuswanhadi; IRRI, Sembawa, Palembang, Indonesia.
  • Chaidamsari T; IBRIEC, Bogor, Indonesia.
  • Rio M; CIRAD, UMR DAP, Montpellier, France.
  • Piyatrakul P; CIRAD, UMR DAP, Montpellier, France; Rubber Research Institute, Chatuchak, Bangkok, Thailand.
  • Herlinawati E; IRRI, Sembawa, Palembang, Indonesia.
  • Pirrello J; CIRAD, UMR DAP, Montpellier, France.
  • Dessailly F; CIRAD, UMR DAP, Montpellier, France.
  • Leclercq J; CIRAD, UMR DAP, Montpellier, France.
  • Bonnot F; CIRAD, UMR BGPI, Montpellier, France.
  • Tang C; RRI, CATAS, Danzhou, Hainan, China.
  • Hu S; BIG-CAS, Beijing, China.
  • Montoro P; CIRAD, UMR DAP, Montpellier, France.
PLoS One ; 10(4): e0123618, 2015.
Article em En | MEDLINE | ID: mdl-25906196
Tolerance of recurrent mechanical wounding and exogenous ethylene is a feature of the rubber tree. Latex harvesting involves tapping of the tree bark and ethephon is applied to increase latex flow. Ethylene is an essential element in controlling latex production. The ethylene signalling pathway leads to the activation of Ethylene Response Factor (ERF) transcription factors. This family has been identified in Hevea brasiliensis. This study set out to understand the regulation of ERF genes during latex harvesting in relation to abiotic stress and hormonal treatments. Analyses of the relative transcript abundance were carried out for 35 HbERF genes in latex, in bark from mature trees and in leaves from juvenile plants under multiple abiotic stresses. Twenty-one HbERF genes were regulated by harvesting stress in laticifers, revealing an overrepresentation of genes in group IX. Transcripts of three HbERF-IX genes from HbERF-IXc4, HbERF-IXc5 and HbERF-IXc6 were dramatically accumulated by combining wounding, methyl jasmonate and ethylene treatments. When an ethylene inhibitor was used, the transcript accumulation for these three genes was halted, showing ethylene-dependent induction. Subcellular localization and transactivation experiments confirmed that several members of HbERF-IX are activator-type transcription factors. This study suggested that latex harvesting induces mechanisms developed for the response to abiotic stress. These mechanisms probably depend on various hormonal signalling pathways. Several members of HbERF-IX could be essential integrators of complex hormonal signalling pathways in Hevea.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Hevea / Etilenos Tipo de estudo: Prognostic_studies País/Região como assunto: America do sul / Brasil Idioma: En Revista: PLoS One Assunto da revista: CIENCIA / MEDICINA Ano de publicação: 2015 Tipo de documento: Article País de afiliação: Indonésia País de publicação: Estados Unidos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Hevea / Etilenos Tipo de estudo: Prognostic_studies País/Região como assunto: America do sul / Brasil Idioma: En Revista: PLoS One Assunto da revista: CIENCIA / MEDICINA Ano de publicação: 2015 Tipo de documento: Article País de afiliação: Indonésia País de publicação: Estados Unidos