Bottom-up effects on herbivore-induced plant defences: a case study based on compositional patterns of rhizosphere microbial communities.

ABSTRACT: Below-ground soil microorganisms can modulate above-ground plant-insect interactions. It still needs to be determined whether this is a direct effect of single species or an indirect effect of shifts in soil microbial community assemblages. Evaluation of the soil microbiome as a whole is critical for understanding multi-trophic interactions, including those mediated by volatiles involving plants, herbivorous insects, predators/parasitoids and microorganisms. We implemented a regulated system comprising Nerium oleander plants grown in soil initially containing a sterile/non sterile inoculum, herbivore Aphis nerii and predator Chrysoperla carnea. After aphid attack, plants emitted a characteristic blend of volatiles derived from two biosynthetic classes: fatty acid catabolites and aromatic-d

SUBMITTER: Benitez E 

PROVIDER: S-EPMC5524984 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature