plant pathogen

Edge evidence

• plant-cell-wall-degrading enzymes enables plant tissue colonization RO:0002327

  Plant-cell-wall-degrading enzymes enable bacterial spread within plant tissues.

  • DOI:10.1146/annurev.micro.55.1.535 cell-wall-degrading enzymes Supports CWD enzymes as virulence factors in plant infection.
• type III secretion system delivers T3SS effector proteins

  The T3SS translocates effector proteins from the bacterium into plant cells.

  • DOI:10.1146/annurev.phyto.43.040204.135923 type III secretion system Supports the T3SS as the delivery system for bacterial effectors into plant cells.
• T3SS effector proteins suppresses plant immune suppression RO:0002212

  Translocated T3SS effectors suppress plant innate immunity.

  • DOI:10.1146/annurev.phyto.43.040204.135923 effector proteins Supports T3SS-delivered effector proteins as the plant-immunity-suppressing factors.
• plant immune suppression enables plant tissue colonization RO:0002327

  Immune suppression supports sustained colonization of plant tissues.

  • DOI:10.1146/annurev.phyto.43.040204.135923 plant pathogen Supports immune-suppression-driven colonization as a hallmark of plant-pathogen infection biology.
• plant tissue colonization causes plant disease biolink:causes

  Established colonization of plant tissues causes plant disease.

  • DOI:10.1146/annurev.micro.55.1.535 cell-wall-degrading enzymes Supports colonization-to-disease progression in plant pathogens.
• plant disease manifests as plant pathogen METPO:2007400

  Plant disease manifests the plant-pathogen trait.

  • DOI:10.1146/annurev.phyto.43.040204.135923 type III secretion Supports the trait endpoint.
• quorum sensing positively regulates biofilm formation

  Quorum sensing is required for cooperative biofilm formation in plant-pathogenic bacteria.

  • DOI:10.3390/plants12112207 QS is required for cooperative biofilm formation and regulates toxins, enzymes, EPS, and virulence factors.
• quorum sensing positively regulates exopolysaccharide production

  Quorum sensing and c-di-GMP signaling positively regulate exopolysaccharide biosynthesis.

  • DOI:10.3390/plants12112207 EPS such as amylovoran, levan, xanthan, stewartan, and cellulose are often regulated by intracellular c-di-GMP and QS.
• exopolysaccharide production enables biofilm formation RO:0002327

  Exopolysaccharide production builds the biofilm matrix enabling biofilm formation.

  • DOI:10.3390/plants12112207 EPS form the matrix of cooperative biofilms in plant-pathogenic bacteria.
• plant-cell-wall-degrading enzymes degrades plant cell wall METPO:2000007

  Secreted cell-wall-degrading enzymes degrade the plant cell wall.

  • DOI:10.21608/mb.2024.307263.1134 Secretion of cell-wall-degrading enzymes (pectinase, chitinase, cellulase, protease) that enable invasion and colonization.
• ER-Golgi apoplastic effector secretion delivers apoplastic effectors

  The conventional ER-Golgi secretory pathway delivers apoplastic effectors.

  • DOI:10.1094/MPMI-12-23-0212-CR Apoplastic effectors are secreted via the conventional endoplasmic reticulum (ER)-Golgi pathway.
• apoplastic effectors suppresses plant immune suppression RO:0002212

  Secreted apoplastic effectors contribute to suppression of plant immunity during infection.

  • DOI:10.1094/MPMI-12-23-0212-CR Apoplastic effectors delivered to the host act to subvert plant defenses and permit infection.