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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Chromobacterium violaceum adaptation to low-phosphate conditions

Full text
Author(s):
da Costa Vasconcelos, Fernanda Nogales [1] ; Padilla, Gabriel [1] ; Spira, Beny [1]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Dept Microbiol, Inst Ciencias Biomed, Ave Prof Lineu Prestes 1374, BR-05508900 Sao Paulo, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Archives of Microbiology; v. 198, n. 3, p. 269-277, APR 2016.
Web of Science Citations: 1
Abstract

Chromobacterium violaceum is a free-living bacterium that inhabits low-nutrient environments such as the Amazon basin. Bacteria respond to phosphate (Pi) shortage by expressing a range of genes involved in Pi uptake and assimilation, known as the PHO regulon. Several PHO regulon genes have been annotated in the genome of C. violaceum. Here we show that C. violaceum is extremely well adapted to low-Pi conditions. Remarkably, this bacterium is able to grow in media containing only traces of Pi. The PHO regulon genes are induced upon Pi depletion, but the bacteria continued to grow under these conditions. Unlike other Proteobacteria hitherto analyzed, neither PstS nor PhoU play a role in the repression of the PHO regulon under Pi excess. (AU)

FAPESP's process: 09/05265-7 - Characterization of regulon PHO genes and general stress responses in Chromobacterium violaceum
Grantee:Fernanda Nogales da Costa Vasconcelos
Support Opportunities: Scholarships in Brazil - Doctorate (Direct)