The Mesorhizobium loti purB gene is involved in infection thread formation and nodule development in Lotus japonicus.

Abstract

The purB and purH mutants of Mesorhizobium loti exhibited purine auxotrophy and nodulation deficiency on Lotus japonicus. In the presence of adenine, only the purH mutant induced nodule formation and the purB mutant produced few infection threads, suggesting that 5-aminoimidazole-4-carboxamide ribonucleotide biosynthesis catalyzed by PurB is required for the establishment of symbiosis.

• Authors: Shin Okazaki, Yoshiyuki Hattori, Kazuhiko Saeki
• Journal: Journal of bacteriology (J Bacteriol) Vol. 189 Issue 22 Pg. 8347-52 (Nov 2007) ISSN: 1098-5530 [Electronic] United States
• PMID: 17827288 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Bacterial Proteins
• Ribonucleotides

Topics

• Bacterial Proteins (genetics, metabolism)
• Gene Expression Regulation, Bacterial
• Genes, Bacterial
• Lotus (metabolism, microbiology)
• Mutation
• Rhizobiaceae (genetics, metabolism)
• Ribonucleotides (biosynthesis)
• Root Nodules, Plant (growth & development, microbiology)