ArticleMolecular plant pathology2018
Xanthomonas oryzae pv. oryzae chemotaxis components and chemoreceptor Mcp2 are involved in the sensing of constituents of xylem sap and contribute to the regulation of virulence-associated functions and entry into rice.
Article in Molecular plant pathology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.
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30 citing papers in PubMed, 57 citations in OpenAlex.
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- CheD is a Key Protein Involved in Regulating the Chemotaxis and Pathogenic Life Cycle of Agrobacterium fabrum.Current microbiology · 2025Article
- Chemoreceptor family in plant-associated bacteria responds preferentially to the plant signal molecule glycerol 3-phosphate.Genome biology · 2025Article
- Xanthomonas oryzae Orphan Response Regulator EmvR Is Involved in Virulence, Extracellular Polysaccharide Production and Cell Motility.Molecular plant pathology · 2025Article
- Understanding the Impact of Salt Stress on Plant Pathogens Through Phenotypic and Transcriptomic Analysis.Plants (Basel, Switzerland) · 2025Article
- Pathological R-loops in bacteria from engineered expression of endogenous antisense RNAs whose synthesis is ordinarily terminated by Rho.Nucleic acids research · 2024Article
- Comparative transcriptomics reveals a highly polymorphic Xanthomonas HrpG virulence regulon.BMC genomics · 2024Article
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- Early transcriptional changes of heavy metal resistance and multiple efflux genes in Xanthomonas campestris pv. campestris under copper and heavy metal ion stress.BMC microbiology · 2024Article
- An aerotaxis receptor influences invasion ofPeerJ · 2024Article
- Root-secreted nucleosides: signaling chemoattractants of rhizosphere bacteria.Frontiers in plant science · 2024Article
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- The occurrence, characteristics, and adaptation of A-to-I RNA editing in bacteria: A review.Frontiers in microbiology · 2023Review
- Pseudomonas syringae pv. tomato infection of tomato plants is mediated by GABA and l-Pro chemoperception.Molecular plant pathology · 2022Article
- A review of approaches to control bacterial leaf blight in rice.World journal of microbiology & biotechnology · 2022Review
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- The diffusible signal factor synthase, RpfF, in Xanthomonas oryzae pv. oryzae is required for the maintenance of membrane integrity and virulence.Molecular plant pathology · 2022Article
- A-to-I mRNA Editing in a Ferric Siderophore Receptor Improves Competition for Iron in Xanthomonas oryzae pv.Microbiology spectrum · 2021Article
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- Applying HPLC to Screening QTLs for BLB Resistance in Rice.Plants (Basel, Switzerland) · 2021Article
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3 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
The Xanthomonas group of phytopathogens causes several economically important diseases in crops. In the bacterial pathogen of rice, Xanthomonas oryzae pv. oryzae (Xoo), it has been proposed that chemotaxis may play a role in the entry and colonization of the pathogen inside the host. However, components of the chemotaxis system, including the chemoreceptors involved, and their role in entry and virulence, are not well defined. In this study, we show that Xoo displays a positive chemotaxis response to components of rice xylem sap-glutamine, xylose and methionine. In order to understand the role of chemotaxis components involved in the promotion of chemotaxis, entry and virulence, we performed detailed deletion mutant analysis. Analysis of mutants defective in chemotaxis components, flagellar biogenesis, expression analysis and assays of virulence-associated functions indicated that chemotaxis-mediated signalling in Xoo is involved in the regulation of several virulence-associated functions, such as motility, attachment and iron homeostasis. The ∆cheY1 mutant of Xoo exhibited a reduced expression of genes involved in motility, adhesins, and iron uptake and metabolism. We show that the expression of Xoo chemotaxis and motility components is induced under in planta conditions and is required for entry, colonization and virulence. Furthermore, deletion analysis of a putative chemoreceptor mcp2 gene revealed that chemoreceptor Mcp2 is involved in the sensing of xylem sap and constituents of xylem exudate, including methionine, serine and histidine, and plays an important role in epiphytic entry and virulence. This is the first report of the role of chemotaxis in the virulence of this important group of phytopathogens.
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