Abstract
Effectors of plant-colonizing fungi and beyond.
Highlights
Plant–microbe interactions have evolved over hundreds of millions of years, generating a diversity of interactions covering a broad continuum from pathogenic to mutualistic coexistence
These different lifestyles have different needs, they all bear in common the use of secreted molecules, termed “effectors”, that enable microbes to interact with their hosts and to influence the outcome of the interaction
Transcriptomic studies on rice under mild drought stress showed that the hemibiotrophic fungus Magnaporthe oryzae transcriptionally downregulates the majority of its putative effectors despite being more successful in colonizing the stressed plants [11]
Summary
Plant–microbe interactions have evolved over hundreds of millions of years, generating a diversity of interactions covering a broad continuum from pathogenic to mutualistic coexistence These different lifestyles have different needs, they all bear in common the use of secreted molecules, termed “effectors”, that enable microbes to interact with their hosts and to influence the outcome of the interaction. Transcriptomic studies on rice under mild drought stress showed that the hemibiotrophic fungus Magnaporthe oryzae transcriptionally downregulates the majority of its putative effectors despite being more successful in colonizing the stressed plants [11]. All these examples of adapted effector expression imply that specific environmental signals must be perceived during colonization by the invading microbes.
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