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Molecular Plant Advance Access originally published online on December 26, 2008
Molecular Plant 2009 2(3):370-377; doi:10.1093/mp/ssn090
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© The Author 2008. Published by the Molecular Plant Shanghai Editorial Office in association with Oxford University Press on behalf of CSPP and IPPE, SIBS, CAS.

Redox Changes during the Legume–Rhizobium Symbiosis

Christine Chang, Isabelle Damiani, Alain Puppo and Pierre Frendo1

UMR INRA–Université de Nice–Sophia Antipolis–CNRS ‘Interactions Biotiques et Santé Végétale’, 400 Route des Chappes, BP167, 06903 Sophia Antipolis Cedex, France

1 To whom correspondence should be addressed. E-mail frendo{at}unice.fr, fax +33-492386587, tel. +33-492386638.

Reactive Oxygen Species (ROS) are continuously produced as a result of aerobic metabolism or in response to biotic and abiotic stresses. ROS are not only toxic by-products of aerobic metabolism, but are also signaling molecules involved in plant growth and environmental adaptation. Antioxidants can protect the cell from oxidative damage by scavenging the ROS. Thus, they play an important role in optimizing cell function by regulating cellular redox state and modifying gene expression. This article aims to review recent studies highlighting the role of redox signals in establishing and maintaining symbiosis between rhizobia and legumes.

Key Words: Oxidative and photo-oxidative stress • cell differentiation/specialization • gene regulation • symbiosis • legume


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