Media room

Séminaire de Biologie des Plantes

Physiological and Molecular Responses of Rice to Drought Stress - Dr. Weining Sun

Jeudi 28 mai 2009 à 14h00

Les séminaires ont lieu sur le Campus Montpellier SupAgro/INRA de La Gaillarde (2, place P. Viala Montpellier)

Dr. Weining Sun (Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, SHANGHAI, CHINE)

Amphi 208 (Coeur d'Ecole), Jeudi 28 mai 2009 à 14h00

Physiological and Molecular Responses of Rice to Drought Stress

Upland rice and lowland rice use different strategies to tolerate drought stress. To investigate the mechanisms underlying stress tolerance, physiological and proteomic responses were compared between the two rice cultivars. Several proteins were found to be differently expressed in response to drought stress between the two cultivars. Expression of aquaporins of the plasma membrane intrinsic protein (PIP) subfamily was systematically analyzed. Our data suggested that the lowland rice used drought tolerant strategy whereas upland rice used drought avoidance strategy.

Furthermore, the structural basis for the difference in water permeability between aquaporins of the PIP1 and PIP2 subclasses was studied. A residue which can affect the water permeability was identified via computer assisted homology modeling and molecular dynamic simulation.

CONTACT :

Christophe MAUREL

Équipe Aquaporines

Institut de Biologie Intégrative des Plantes

Laboratoire de Biochimie et Physiologie Moléculaire des Plantes

Agro-M/INRA/CNRS/UM2 UMR 5004

2, Place Viala

F-34 060 Montpellier Cedex 1

FRANCE

maurel(a)supagro.inra.fr

Phone: + 33 (0)4 99 61 20 11

Fax : + 33 (0)4 67 52 57 37

http://www.montpellier.inra.fr/ibip/bpmp/equipes/aquaporines.htm

L'accueil de Dr. Weining Sun est prévu dans le cadre d'un projet soutenu par Agropolis Fondation.