True or False: A plant that is resistant to one pathogen is resistant to all pathogens.

The statement that a plant resistant to one pathogen is resistant to all pathogens is false. Plant resistance is often specific to particular pathogens and can vary significantly between different pathogens. Each pathogen can have unique mechanisms of infection, and a plant may have evolved defenses against one specific pathogen while remaining susceptible to others.

Resistance mechanisms, including physical barriers, biochemical responses, and gene-for-gene interactions, are typically tailored to combat specific threats. This means that if a pathogen varies significantly in its biology or mode of attack, a plant's resistance to one may not confer any protection against another.

Furthermore, environmental factors and the presence of certain stressors can influence the expression of resistance traits in plants, making it essential to consider that plant resilience is often context-dependent and specific to individual pathogen relationships.