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The Anaerobically Induced sRNA PaiI Affects Denitrification in Pseudomonas aeruginosa PA14.

Tata, Muralidhar
; 
Amman, Fabian
; 
Pawar, Vinay
; 
Wolfinger, Michael T
; 
Weiss, Siegfried
; ; 
Bläsi, Udo
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2017
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Abstract
Pseudomonas aeruginosa is an opportunistic pathogen that can thrive by anaerobic respiration in the lungs of cystic fibrosis patients using nitrate as terminal electron acceptor. Here, we report the identification and characterization of the small RNA PaiI in the P. aeruginosa strain 14 (PA14). PaiI is anaerobically induced in the presence of nitrate and depends on the two-component system NarXL. Our studies revealed that PaiI is required for efficient denitrification affecting the conversion of nitrite to nitric oxide. In the absence of PaiI anaerobic growth was impaired on glucose, which can be reconciled with a decreased uptake of the carbon source under these conditions. The importance of PaiI for anaerobic growth is further underlined by the observation that a paiI deletion mutant was impaired in growth in murine tumors.
Citation
The Anaerobically Induced sRNA PaiI Affects Denitrification in Pseudomonas aeruginosa PA14. 2017, 8:2312 Front Microbiol
Affiliation
Helmholtz-Zentrum für Infektionsforschung GmbH, Inhoffenstr. 7, 38124 Braunschweig, Germany.
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Frontiers in microbiology
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http://hdl.handle.net/10033/621251
DOI
10.3389/fmicb.2017.02312
PubMed ID
29218039
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Article
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en
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1664-302X
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publications of the research group of molecular bacteriology(MOBA)
publications of the research group molecular Immunology (MOLI)