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Published on: October 8, 2021
Friends or Foes? The Indispensable Role of Gut Microbiota in Plant-Fungus-Herbivore Interactions
1Centre for Behavioral Ecology and Evolution (CBEE) and Arachnid Resources Centre of Hubei, School of Life Sciences, Hubei University, Wuhan, China.
Abstract:
Plants interact complexly with herbivores and diverse microbial communities, both plant-associated and insect-associated. A recent study investigated how the endophytic fungus Trichoderma, colonizing tomato plants, affects the herbivore Spodoptera littoralis. The study revealed that Trichoderma-enhanced plant resistance significantly reduced larval performance by profoundly changing the insect's gut microbial community composition. This work demonstrates that the effects of plant fungal colonization on insect herbivores are critically mediated by the insect's gut microbiota, highlighting a key mechanism in plant-insect-microbe tripartite interactions with implications for sustainable pest management.
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