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Identification of the toxin components of AG1-IA and its destructive effect on plant cell membrane structure. | LitMetric

AI Article Synopsis

  • Rice sheath blight, primarily caused by the fungus AG1-IA, involves various toxins that contribute to its pathogenicity, but findings on these toxins have been inconsistent.
  • This study identified key phytotoxins from AG1-IA, including benzoic acid (BZA), 5-hydroxymethyl-2-furanic acid (HFA), and catechol (CAT), through a comparative analysis with other variants and healthy rice.
  • The toxins were found to disrupt biofilm structures in plants while preserving membrane components, which may explain the absence of highly resistant rice varieties to this disease.

Article Abstract

Rice sheath blight is a fungal disease caused mainly by AG1-IA. Toxins are a major pathogenic factor of , and some studies have reported their toxin components; however, there is no unified conclusion. In this study, we reported the toxin components and their targets that play a role in AG1-IA. First, toxins produced by AG1-IA were examined. Several important phytotoxins, including benzoic acid (BZA), 5-hydroxymethyl-2-furanic aid (HFA), and catechol (CAT), were identified by comparative analysis of secondary metabolites from AG1-IA, AG1-IB, and healthy rice. Follow-up studies have shown that the toxin components of this fungus can rapidly disintegrate the biofilm structure while maintaining the content of host plant membrane components, thereby affecting the organelles, which may also explain the lack of varieties highly resistant to sheath blight.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10896845PMC
http://dx.doi.org/10.3389/fpls.2024.1348257DOI Listing

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