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Article

Genetic analysis of a pH-regulated operon from Rhizobium tropici CIAT899 involved in acid tolerance and nodulation competitiveness.

Molecular plant-microbe interactions : MPMI - 1 Feb 2003

Vinuesa Pablo, Neumann-Silkow Frauke, Pacios-Bras Cristina, Spaink Herman P, Martínez-Romero Esperanza, Werner Dietrich

Abstract excerpt

Rhizobium tropici CIAT899 is highly acid tolerant and a good competitor for Phaseolus vulgaris nodule occupancy at low pH values. Using Tn5 mutagenesis, we identified an operon required for acid tolerance and nodulation competitiveness. The insertion was mapped to the 5' end of atvA, encoding a product with high sequence identity to the agro-bacterial AcvB virulence protein. Complementation analyses indicated...

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PMID: 12575750
DOI: 10.1094/MPMI.2003.16.2.159

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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