Early biotic stress detection in tomato ( Solanum lycopersicum ) by BVOC emissions

Tina Kasal-Slavik*, Julia Eschweiler, Einhard Kleist, Roland Mumm, Heiner E. Goldbach, Sander Schouten, Jürgen Wildt

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

4 Citations (Scopus)

Abstract

We investigated impacts of early and mild biotic stress on Biogenic Volatile Organic Compounds (BVOC) emissions from tomato in order to test their potential for early (biotic) stress detection. Tomato plants were exposed to two common fungal pathogens, Botrytis cinerea and Oidium neolycopesici and the sap-sucking aphid Myzus persicae. Furthermore, plants were exposed to methyl jasmonate (MeJA) in order to identify BVOC emissions related to activation of jasmonic acid (JA) signalling pathway. These emissions where then used as a reference for identifying active JA signalling pathway in plants at early stages of biotic stress.
After infection by the necrotrophic fungus B. cinerea, changes in BVOC emissions indicated that tomato plants had predominantly activated the jasmonic acid (JA) signalling pathway. The plants were able to modify their defence pathways in order to overcome fungal infection. When tomato plants were infected with the biotrophic fungus O. neolycopersici, only minor changes in BVOC emissions were observed with additional emissions of the sesquiterpene α-copaene. α-copaene emissions allowed the identification of general biotic stress in the plants, without pinpointing the actual triggered defence pathway.

BVOC emissions during M. persicae attack had changed before the occurrence of visual symptoms. Despite low infestation rates, plants emitted methyl salicylate indicating activation of the SA-mediated defence pathway.
Original languageEnglish
Pages (from-to)180-188
JournalPhytochemistry
Volume144
DOIs
Publication statusPublished - 2017

Fingerprint Dive into the research topics of 'Early biotic stress detection in tomato ( Solanum lycopersicum ) by BVOC emissions'. Together they form a unique fingerprint.

  • Cite this