Physiological and biochemical responses of Hevea brasilliensis clone PB 260 vitroplants grown under water deficit

Sanier Christine, Clément-Vidal Anne, Fabre Denis, Oliver Gérald, Lardet Ludovic, Montoro Pascal. 2010. Physiological and biochemical responses of Hevea brasilliensis clone PB 260 vitroplants grown under water deficit. In : Climate change, low carbon economy and sustainable natural rubber industry : IRRDB International Rubber Conference, Sanya, China, 18-19 October 2010. Chen Qiubo (ed.). IRRDB. Pékin : China agriculture press, 74-78. IRRDB International Rubber Conference, Sanya, Chine, 18 Octobre 2010/19 Octobre 2010.

Résumé : The influence of water deficit on self-rooting vitroplants of clone PB260 regenerated by somatic embryogenesis was investigated. Physiological responses including transpiration, stomatal conductance and fluorescence were monitored on leaves. Osmoprotectant compound like pro lin e, antioxidants and reactive-oxygen speciesscavenging enzymes like ascorbate peroxidase, glutathione reductase were analyzed during the stress. These responses are used io determine defence mechanism involved in drought tolerance and identifY parameters to be used as indicators in breeding programme or for genetic modification.

Mots-clés Agrovoc : Hevea brasiliensis, stress dû à la sécheresse, résistance à la sécheresse, clone

Classification Agris : F62 - Physiologie végétale - Croissance et développement
F02 - Multiplication végétative des plantes

Auteurs et affiliations

• Sanier Christine, CIRAD-BIOS-UMR DAP (FRA)
• Clément-Vidal Anne, CIRAD-BIOS-UPR AIVA (FRA)
• Fabre Denis, CIRAD-BIOS-UPR AIVA (FRA) ORCID: 0000-0002-6222-2587
• Oliver Gérald, CIRAD-BIOS-UMR DAP (FRA)
• Lardet Ludovic, CIRAD-BIOS-UMR DAP (FRA)
• Montoro Pascal

Source : Cirad - Agritrop (https://agritrop.cirad.fr/558764/)

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