Department of Entomology and Center for Chemical Ecology, Pennsylvania State University, University Park, Pennsylvania 16802; email:
Department of Plant Pathology and Environmental Microbiology, Pennsylvania State University, University Park, Pennsylvania 16802.
Annu Rev Phytopathol. 2017 Aug 4;55:313-331. doi: 10.1146/annurev-phyto-080516-035319. Epub 2017 Jun 7.
It is becoming abundantly clear that the microbes associated with plants and insects can profoundly influence plant-insect interactions. Here, we focus on recent findings and propose directions for future research that involve microbe-induced changes to plant defenses and nutritive quality as well as the consequences of these changes for the behavior and fitness of insect herbivores. Insect (herbivore and parasitoid)-associated microbes can favor or improve insect fitness by suppressing plant defenses and detoxifying defensive phytochemicals. Phytopathogens can influence or manipulate insect behavior and fitness by altering plant quality and defense. Plant-beneficial microbes can promote plant growth and influence plant nutritional and phytochemical composition that can positively or negatively influence insect fitness. Lastly, we suggest that entomopathogens have the potential to influence plant defenses directly as endophytes or indirectly by altering insect physiology.
越来越明显的是，与植物和昆虫相关的微生物可以深刻影响植物-昆虫相互作用。在这里，我们关注最近的发现，并提出未来涉及微生物诱导植物防御和营养质量变化以及这些变化对昆虫食草动物行为和适应性影响的研究方向。昆虫（食草动物和寄生蜂）相关的微生物可以通过抑制植物防御和解毒防御性植物化学物质来促进或改善昆虫的适应性。植物病原体可以通过改变植物质量和防御来影响或操纵昆虫行为和适应性。植物有益微生物可以促进植物生长并影响植物营养和植物化学物质组成，从而对昆虫适应性产生积极或消极的影响。最后，我们认为，昆虫病原真菌作为内生菌或通过改变昆虫生理学间接影响植物防御的能力，使其具有直接影响植物防御的潜力。
