Interior design: how plant pathogens optimize their living conditions

Area of Science:

• Plant pathology
• Molecular plant-microbe interactions
• Abiotic stress biology

Background:

• Pathogen effectors are crucial for virulence, suppressing host immunity and facilitating nutrient acquisition.
• While effectors targeting biotic pathways are well-studied, their manipulation of non-immunity pathways is emerging.
• Understanding effector roles in abiotic stress responses is key to comprehending plant-pathogen interactions.

Purpose of the Study:

• To review novel insights into pathogen effectors targeting plant abiotic stress adaptation pathways.
• To assess the role of signaling agents in pathway crosstalk upon effector perturbation.
• To summarize known effectors from bacterial, fungal, and oomycete pathogens that induce biotic and abiotic stress responses.

Main Methods:

• Literature review and critical assessment of existing research.
• Analysis of signaling pathways involved in plant responses to effectors.
• Compilation of known pathogen effectors and their targeted pathways.

Main Results:

• Pathogen effectors actively manipulate abiotic stress pathways to enhance colonization.
• Signaling molecules play a critical role in integrating responses to effector attacks.
• A growing list of effectors targets both biotic and abiotic pathways, linking them to pathogenic lifestyles.

Conclusions:

• Effectors are versatile tools pathogens use to exploit plant vulnerabilities beyond immunity.
• Targeting abiotic stress pathways represents a significant, under-explored virulence strategy.
• Comprehensive knowledge of effector-host interactions is essential for developing robust disease resistance strategies.