Chemotaxis and nod Gene Activity of Bradyrhizobium japonicum in Response to Hydroxycinnamic Acids and Isoflavonoids

Author:

Kape Rüdiger1,Parniske Martin1,Werner Dietrich1

Affiliation:

1. Fachbereich Biologie, Philipps-Universität Marburg, Karl-von-Frisch-Strasse, D-3550 Marburg, Federal Republic of Germany

Abstract

For Bradyrhizobium japonicum, the chemotactic and the nod gene-inducing effects of hydroxycinnamic acids and two of their derivatives were compared with those of isoflavonoids. Only the hydroxycinnamic acids were strong chemoattractants, while the other substances tested were chemotactically inactive. Besides the known nod gene induction by isoflavonoids, a weak nod gene induction by coniferyl alcohol, chlorogenic acid, and ferulic acid was found.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Reference30 articles.

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4. Ti plasmid-specified chemotaxis of Agrobacterium tumefaciens C58C toward vir-inducing phenolic compounds and soluble factors from monocotyledonous and dicotyledonous plants;Ashby A. M.;J. Bacteriol.,1988

5. Regulation of nod gene expression in Bradyrhizobium japonicum;Banfalvi Z.;Mol. Gen. Genet.,1988

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