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Expression analysis of Pseudomonas fluorescens Pf0-1 (Wt) and delta-pst mutant grown in K10T-1 medium

ABSTRACT: Whole genome gene expression study comparing Pseudomonas fluorescens Pf0-1 (Wt) relative to a delta-pst mutant (deletion of the pstSCAB operon) that consitutively expresses the Pho regulon Mutants used in this study are further described in Monds, R.D. Newell, P.D., Gross, R.H., O'Toole, G.A. (2007) Phosphate-dependent modulation of c-di-GMP levels regulates Pseudomonas fluorescens Pf0-1 biofilm formation by controlling secretion of the adhesin LapA. Mol. Microbiol. 63(3): 656-679 A four chip study using total RNA recovered from two independent wild-type cultures of wild type strain Pseudomonas fluorescens Pf0-1 and two independent cultures of Pseudomonas fluorescens Pf0-1 delta pst mutant (deletion of the pstSCAB operon). Each chip measures the expression level of 5733 open reading frames (ORFs) genes from Pseudomonas fluorescens Pf0-1 (Refseq: NC_007492) with twenty 60-mer postive match (PM) probes per gene, with three-fold technical redundancy.

ORGANISM(S): Pseudomonas fluorescens Pf0-1

SUBMITTER: Peter Newell 

PROVIDER: E-GEOD-30681 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Systematic analysis of diguanylate cyclases that promote biofilm formation by Pseudomonas fluorescens Pf0-1.

Newell Peter D PD   Yoshioka Shiro S   Hvorecny Kelli L KL   Monds Russell D RD   O'Toole George A GA  

Journal of bacteriology 20110715 18

Cyclic di-GMP (c-di-GMP) is a broadly conserved, intracellular second-messenger molecule that regulates biofilm formation by many bacteria. The synthesis of c-di-GMP is catalyzed by diguanylate cyclases (DGCs) containing the GGDEF domain, while its degradation is achieved through the phosphodiesterase activities of EAL and HD-GYP domains. c-di-GMP controls biofilm formation by Pseudomonas fluorescens Pf0-1 by promoting the cell surface localization of a large adhesive protein, LapA. LapA localiz  ...[more]

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