ArticleFrontiers in cellular and infection microbiology2015
XocR, a LuxR solo required for virulence in Xanthomonas oryzae pv. oryzicola.
Article in Frontiers in cellular and infection microbiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 21 citations in OpenAlex.
- VmsR, a LuxR-Type Regulator, Contributes to Virulence, Cell Motility, Extracellular Polysaccharide Production and Biofilm Formation inInternational journal of molecular sciences · 2024Article
- Effects ofMicrobiology spectrum · 2024Article
- Structural basis for a bacterial Pip system plant effector recognition protein.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- LuxR Solos in the Plant EndophyteApplied and environmental microbiology · 2020Article
- PcsR2 Is a LuxR-Type Regulator That Is Upregulated on Wheat Roots and Is Unique toFrontiers in microbiology · 2020Article
- A plant-responsive bacterial-signaling system senses an ethanolamine derivative.Proceedings of the National Academy of Sciences of the United States of America · 2018Article
- Melatonin Treatment Inhibits the Growth ofFrontiers in microbiology · 2018Article
- Article
- Clinical and Genomic Analysis of Liver Abscess-CausingFrontiers in cellular and infection microbiology · 2016Article
- Editorial: LuxR Solos are Becoming Major Players in Cell-Cell Communication in Bacteria.Frontiers in cellular and infection microbiology · 2015Article
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Xanthomonas oryzae pv. oryzicola (Xoc) causes bacterial leaf streak (BLS) in rice, a serious bacterial disease of rice in Asia and parts of Africa. The virulence mechanisms of Xoc are not entirely clear and control measures for BLS are poorly developed. The solo LuxR proteins are widespread and shown to be involved in virulence in some plant associated bacteria (PAB). Here, we have cloned and characterized a PAB LuxR solo from Xoc, named as XocR. Mutation of xocR almost completely impaired the virulence ability of Xoc on host rice, but did not alter the ability to trigger HR (hypersensitive response, a programmed cell death) on non-host (plant) tobacco, suggesting the diversity of function of xocR in host and non-host plants. We also provide evidence to show that xocR is involved in the regulation of growth-independent cell motility in response to a yet-to-be-identified rice signal, as mutation of xocR impaired cell swimming motility of wild-type Rs105 in the presence but not absence of rice macerate. We further found that xocR regulated the transcription of two characterized virulence-associated genes (recN and trpE) in the presence of rice macerate. The promoter regions of recN and trpE possessed a potential binding motif (an imperfect pip box-like element) of XocR, raising the possibility that XocR might directly bind the promoter regions of these two genes to regulate their transcriptional activity. Our studies add a new member of PAB LuxR solos and also provide new insights into the role of PAB LuxR solo in the virulence of Xanthomonas species.
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