plant-pathogen-resistance
Plant-pathogen resistance refers to the molecular and genetic mechanisms by which plants detect, respond to, and defend against infectious agents such as bacteria, fungi, viruses, and oomycetes. Understanding these defense pathways is central to plant biology, as resistance traits determine crop survival and yield under disease pressure. Researchers study how plants recognize pathogen signals and activate immune responses to develop more resilient varieties and reduce reliance on chemical pesticides.
open_in_new WikipediaPubMed · 2026-04-16
Scientists identified a specific protein produced by an invasive plant pathogen that determines how severely it attacks different plant varieties. Understanding this protein explains why some plants are devastated while others survive the same infection.
A single conserved effector protein was identified as the key driver of genotype-dependent virulence differences across host plants
Transcriptomic analysis revealed the effector is expressed during active infection and is functionally required for full pathogen virulence
The effector's activity varies by host genotype, explaining why the same invasive pathogen causes severe disease in some plant varieties but not others