TY  - JOUR
A1  - Schmidtke, Cornelius
A1  - Findeiß, Sven
A1  - Sharma, Cynthia M.
A1  - Kuhfuss, Juliane
A1  - Hoffmann, Steve
A1  - Vogel, Jörg
A1  - Stadler, Peter F.
A1  - Bonas, Ulla
T1  - Genome-wide transcriptome analysis of the plant pathogen Xanthomonas identifies sRNAs with putative virulence functions
T2  - Nucleic Acids Research
N2  - The Gram-negative plant-pathogenic bacterium Xanthomonas campestris pv. vesicatoria (Xcv) is an important model to elucidate the mechanisms involved in the interaction with the host. To gain insight into the transcriptome of the Xcv strain 85-10, we took a differential RNA sequencing (dRNA-seq) approach. Using a novel method to automatically generate comprehensive transcription start site (TSS) maps we report 1421 putative TSSs in the Xcv genome. Genes in Xcv exhibit a poorly conserved -10 promoter element and no consensus Shine-Dalgarno sequence. Moreover, 14% of all mRNAs are leaderless and 13% of them have unusually long 5'-UTRs. Northern blot analyses confirmed 16 intergenic small RNAs and seven cis-encoded antisense RNAs in Xcv. Expression of eight intergenic transcripts was controlled by HrpG and HrpX, key regulators of the Xcv type III secretion system. More detailed characterization identified sX12 as a small RNA that controls virulence of Xcv by affecting the interaction of the pathogen and its host plants. The transcriptional landscape of Xcv is unexpectedly complex, featuring abundant antisense transcripts, alternative TSSs and clade-specific small RNAs.
KW  - SUBSP carotovora
KW  - regulatory RNA
KW  - gene-cluster
KW  - campestris PV vesicatoria
KW  - escherichia coli
KW  - determines pathgenicity
KW  - hypersensitive response
KW  - ralstonia solanacearum
KW  - extracellular enzymes
KW  - secretion systems
KW  - transcription initiation site
KW  - RNA sequence analyses
KW  - messanger RNA
KW  - plants
KW  - libraries
KW  - genome
KW  - genes
KW  - gene expression profiling
KW  - genetic transcription
KW  - northern blotting
KW  - untranslated regions
KW  - xanthomonas
KW  - xanthomonas campestris
KW  - bacteria
KW  - virulence
KW  - pathogenetic organism
KW  - RNA
KW  - small RNA
KW  - pathogenicity
KW  - type III secretion system pathways
KW  - maps
KW  - consesus
KW  - host (organism)
KW  - type III protein secretion system complex
Y1  - 2011
UR  - https://opus.bibliothek.uni-wuerzburg.de/frontdoor/index/index/docId/13178
UR  - https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-131781
VL  - 40
IS  - 5
SP  - 2020
EP  - 2031
ER  -