Transcript profiling of oilseed rape (Brassica napus) primed for biocontrol differentiate genes involved in microbial interactions with beneficial Bacillus amyloliquefaciens from pathogenic Botrytis cinerea

Transcript profiling of oilseed rape (Brassica napus) primed for biocontrol differentiate genes... Many microorganisms interact with plants but information is insufficient concerning requirements for plant colonization and if interactions become beneficial or detrimental. Pretreatment of oilseed rape (Brassica napus) with Bacillus results in disease suppression upon challenge with pathogens. We have studied transcriptome effects on oilseed rape primed with the Bacillus amyloliquefaciens 5113 biocontrol strain and compared that with effects of the fungal pathogen Botrytis cinerea. Using the cDNA-AFLP technique 21,700 transcript fragments were obtained of which 120 were differentially expressed and verified by northern blot analysis for selected transcripts. Priming with Bacillus caused greater effect on leaf than root transcripts where sequencing and BLAST analysis suggested many of the transcripts to be involved in metabolism and bioenergy. Bacillus and Botrytis treatment also changed metabolic gene expression in addition to signaling and transcription control genes as well as a potential disease resistance (TIR-NBS-LRR) gene. The pathogen provoked non-primed plant profile was less dominated by metabolism than Bacillus and Bacillus–Botrytis treated plants. Several transcripts were homologues to unknown genes in the different treatments. Altogether Bacillus treatment of roots cause a systemic gene expression in leaves suggested to result in a metabolic reprogramming as a major event during priming. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Plant Molecular Biology Springer Journals

Transcript profiling of oilseed rape (Brassica napus) primed for biocontrol differentiate genes involved in microbial interactions with beneficial Bacillus amyloliquefaciens from pathogenic Botrytis cinerea

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Publisher
Springer Journals
Copyright
Copyright © 2009 by Springer Science+Business Media B.V.
Subject
Life Sciences; Plant Pathology; Biochemistry, general; Plant Sciences
ISSN
0167-4412
eISSN
1573-5028
D.O.I.
10.1007/s11103-009-9455-4
Publisher site
See Article on Publisher Site

Abstract

Many microorganisms interact with plants but information is insufficient concerning requirements for plant colonization and if interactions become beneficial or detrimental. Pretreatment of oilseed rape (Brassica napus) with Bacillus results in disease suppression upon challenge with pathogens. We have studied transcriptome effects on oilseed rape primed with the Bacillus amyloliquefaciens 5113 biocontrol strain and compared that with effects of the fungal pathogen Botrytis cinerea. Using the cDNA-AFLP technique 21,700 transcript fragments were obtained of which 120 were differentially expressed and verified by northern blot analysis for selected transcripts. Priming with Bacillus caused greater effect on leaf than root transcripts where sequencing and BLAST analysis suggested many of the transcripts to be involved in metabolism and bioenergy. Bacillus and Botrytis treatment also changed metabolic gene expression in addition to signaling and transcription control genes as well as a potential disease resistance (TIR-NBS-LRR) gene. The pathogen provoked non-primed plant profile was less dominated by metabolism than Bacillus and Bacillus–Botrytis treated plants. Several transcripts were homologues to unknown genes in the different treatments. Altogether Bacillus treatment of roots cause a systemic gene expression in leaves suggested to result in a metabolic reprogramming as a major event during priming.

Journal

Plant Molecular BiologySpringer Journals

Published: Jan 30, 2009

References

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