Title |
The requirement for the LysR-type regulator PtrA for Pseudomonas chlororaphis PA23 biocontrol revealed through proteomic and phenotypic analysis
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Published in |
BMC Microbiology, April 2014
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DOI | 10.1186/1471-2180-14-94 |
Pubmed ID | |
Authors |
Natasha Klaponski, Carrie Selin, Kelly Duke, Vic Spicer, Dilantha WG Fernando, Mark F Belmonte, Teresa R de Kievit |
Abstract |
Pseudomonas chlororaphis strain PA23 is a biocontrol agent capable of suppressing the fungal pathogen Sclerotinia sclerotiorum. This bacterium produces the antibiotics phenazine and pyrrolnitrin together with other metabolites believed to contribute to biocontrol. A mutant no longer capable of inhibiting fungal growth was identified harboring a transposon insertion in a gene encoding a LysR-type transcriptional regulator (LTTR), designated ptrA (Pseudomonas transcriptional regulator). Isobaric tag for relative and absolute quantitation (iTRAQ) based protein analysis was used to reveal changes in protein expression patterns in the ptrA mutant compared to the PA23 wild type. |
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