Title | Phaseolus vulgaris recognizes Azorhizobium caulinodans Nod factors with a variety of chemical substituents. |
Publication Type | Journal Article |
Year of Publication | 1999 |
Authors | Laeremans, T., C. Snoeck, J. Mariën, C. Verreth, E. Martínez-Romero, J. C. Promé, and J. Vanderleyden |
Journal | Mol Plant Microbe Interact |
Volume | 12 |
Issue | 9 |
Pagination | 820-4 |
Date Published | 1999 Sep |
ISSN | 0894-0282 |
Keywords | Base Sequence, Conjugation, Genetic, DNA Primers, Fabaceae, Genes, Bacterial, Lipopolysaccharides, Mutation, Plants, Medicinal, Rhizobium |
Abstract | Phaseolus vulgaris is a promiscuous host plant that can be nodulated by many different rhizobia representing a wide spectrum of Nod factors. In this study, we introduced the Rhizobium tropici CFN299 Nod factor sulfation genes nodHPQ into Azorhizobium caulinodans. The A. caulinodans transconjugants produce Nod factors that are mostly if not all sulfated and often with an arabinosyl residue as the reducing end glycosylation. Using A. caulinodans mutant strains, affected in reducing end decorations, and their respective transconjugants in a bean nodulation assay, we demonstrated that bean nodule induction efficiency, in decreasing order, is modulated by the Nod factor reducing end decorations fucose, arabinose or sulfate, and hydrogen. |
DOI | 10.1094/MPMI.1999.12.9.820 |
Alternate Journal | Mol. Plant Microbe Interact. |
PubMed ID | 10494633 |
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