Plant defence against insect eggs: General egg-associated elicitors and general plant responses

ABSTRACT: Egg deposition by herbivorous insects is well known to elicit defensive plant responses. Yet, our knowledge about the insect and plant species specificity of these responses is limited. To study the insect species specificity, we treated Arabidopsis thaliana with egg extracts and egg-associated secretions of a sawfly (Diprion pini), a beetle (Xanthogaleruca luteola) and a butterfly (Pieris brassicae). All egg extracts elicited salicylic acid (SA) accumulation in the plant, and all secretions induced expression of plant genes known to be responsive to the butterfly eggs, among them Pathogenesis-Related (PR) genes. All secretions contained phosphatidylcholine derivatives, known elicitors of SA accumulation and PR gene expression in Arabidopsis. The sawfly egg extract did not induce plant cam

ORGANISM(S): Arabidopsis thaliana (thale cress)

SUBMITTER:  

PROVIDER: S-BSST1214 | biostudies-other |

REPOSITORIES: biostudies-other