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Applied and Environmental Microbiology, May 2002, p. 2562-2566, Vol. 68, No. 5
0099-2240/02/$04.00+0     DOI: 10.1128/AEM.68.5.2562-2566.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.

Engineered Rhizosphere: the Trophic Bias Generated by Opine-Producing Plants Is Independent of the Opine Type, the Soil Origin, and the Plant Species

Hounayda Mansouri, Annik Petit, Phil Oger,,{dagger} and Yves Dessaux*

Institut des Sciences du Végétal, UPR 2355 CNRS, 91198 Gif-sur-Yvette Cedex, France

Received 15 October 2001/ Accepted 2 February 2002

In a previous study, we demonstrated that transgenic Lotus plants producing opines (which are small amino acid and sugar conjugates) specifically favor growth of opine-degrading rhizobacteria. The opine-induced bias was repeated and demonstrated with another soil type and another plant species (Solanum nigrum). This phenomenon is therefore independent of both soil type and plant species.

* Corresponding author. Mailing address: Institut des Sciences du Végétal, Bâtiment 23, CNRS, Avenue de la terrasse, 91198 Gif-sur-Yvette Cedex, France. Phone: 33 1 6982 3690. Fax: 33 1 6982 3695. E-mail: dessaux{at}isv.cnrs-gif.fr.

{dagger} Present address: Laboratoire des Sciences de la Terre, Ecole Normale Supérieure, 69364 Lyon Cedex 07, France.

Applied and Environmental Microbiology, May 2002, p. 2562-2566, Vol. 68, No. 5
0099-2240/02/$04.00+0     DOI: 10.1128/AEM.68.5.2562-2566.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.



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