1.
A putative ECF sigma factor gene, rpol, regulates siderophore production in Rhizobium leguminosarum.
Mol Plant Microbe Interact
; 12(11): 994-9, 1999 Nov.
Artigo
em Inglês
| MEDLINE
| ID: mdl-10550895
RESUMO
A cloned Rhizobium leguminosarum gene, termed rpoI, when transferred to wild-type strains, caused overproduction of the siderophore vicibactin. An rpoI mutant was defective in Fe uptake but was unaffected in symbiotic N2 fixation. The RpoI gene product was similar in sequence to extra-cytoplasmic sigma factors of RNA polymerase. Transcription of rpoI was reduced in cells grown in medium that was replete with Fe.