Trichoderma volatiles effecting Arabidopsis: from inhibition to protection against phytopathogenic fungi.

ABSTRACT: Trichoderma species are present in many ecosystems and some strains have the ability to reduce the severity of plant diseases by activating various defense pathways via specific biologically active signaling molecules. Hence we investigated the effects of low molecular weight volatile compounds of Trichoderma asperellum IsmT5 on Arabidopsis thaliana. During co-cultivation of T. asperellum IsmT5 without physical contact to A. thaliana we observed smaller but vital and robust plants. The exposed plants exhibit increased trichome numbers, accumulation of defense-related compounds such as H2O2, anthocyanin, camalexin, and increased expression of defense-related genes. We conclude that A. thaliana perceives the Trichoderma volatiles as stress compounds and subsequently initiates multilayered ad

SUBMITTER: Kottb M 

PROVIDER: S-EPMC4586454 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature