Stout Michael J, Thaler Jennifer S, Thomma Bart P H J
Department of Entomology, Louisiana State University, Agricultural Center, Baton Rouge, 70803, USA.
Annu Rev Entomol. 2006;51:663-89. doi: 10.1146/annurev.ento.51.110104.151117.
Plant-mediated interactions between pathogenic microorganisms and arthropod herbivores occur when arthropod infestation or pathogen infection changes the shared host plant in ways that affect a subsequent attacker of the opposite type. Interest in such "tripartite" interactions has increased as the ecological and plant physiological framework for understanding and contextualizing them has developed. The outcomes of plant-mediated interactions are variable, and only a few provisional patterns can be identified at present. However, these interactions can have important consequences not only for individual pathogens and herbivores, but also for the population dynamics of both types of organisms in managed and natural ecosystems. Research has focused on the role of two plant response pathways in mediating tripartite interactions, one involving jasmonic acid and the other salicylic acid. Further studies of plant-mediated interactions will facilitate an understanding of how plants coordinate and integrate their defenses against multiple biotic threats.
当节肢动物侵害或病原体感染以影响后续相反类型攻击者的方式改变共享宿主植物时，就会发生病原微生物与节肢动物食草动物之间由植物介导的相互作用。随着理解和将它们置于情境中的生态和植物生理框架的发展，对这种“三方”相互作用的兴趣增加了。植物介导的相互作用的结果是可变的，目前只能识别出一些临时模式。然而，这些相互作用不仅对个体病原体和食草动物有重要影响，而且对管理和自然生态系统中这两种生物的种群动态也有重要影响。研究集中在两条植物反应途径在介导三方相互作用中的作用，一条涉及茉莉酸，另一条涉及水杨酸。对植物介导的相互作用的进一步研究将有助于理解植物如何协调和整合其对多种生物威胁的防御。
