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Phytochemistry

Title:		Early biotic stress detection in tomato (Solanum lycopersicum) by BVOC emissions
Author(s):		Kasal-Slavik T; Eschweiler J; Kleist E; Mumm R; Goldbach HE; Schouten A; Wildt J;
Address:		"Department of Plant Nutrition, INRES, Universitat Bonn, Karlrobert Kreiten Str. 13, 53115, Bonn, Germany; Institut fur Bio- und Geowissenschaften, IBG-2, Forschungszentrum Julich, 52425, Julich, Germany. Electronic address: tina.kasal-slavik@fu-berlin.de. Department of Molecular Phytomedicine, INRES, Universitat Bonn, Karlrobert Kreiten Str. 13, 53115 Bonn, Germany. Institut fur Bio- und Geowissenschaften, IBG-2, Forschungszentrum Julich, 52425, Julich, Germany. Plant Research International, Wageningen University and Research Centre, 6700 AA, Wageningen, The Netherlands; Centre for BioSystems Genomics, 6700AB, Wageningen, The Netherlands. Department of Plant Nutrition, INRES, Universitat Bonn, Karlrobert Kreiten Str. 13, 53115, Bonn, Germany. Laboratory of Nematology, Experimental Plant Sciences, Wageningen University and Research Centre, 6700 AA, Wageningen, The Netherlands"
Journal Title:		Phytochemistry
Year:		2017
Volume:		20170922
Issue:
Page Number:		180 - 188
DOI:		10.1016/j.phytochem.2017.09.006
ISSN/ISBN:		1873-3700 (Electronic) 0031-9422 (Linking)
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 alpha-copaene. alpha-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"
Keywords:		Animals Aphids/metabolism Ascomycota/metabolism Botrytis/metabolism Solanum lycopersicum/*metabolism/microbiology Oxidative Stress Volatile Organic Compounds/chemistry/*metabolism BVOC biogenic volatile organic compounds Botrytis cinerea Early stress dete;
Notes:		"MedlineKasal-Slavik, Tina Eschweiler, Julia Kleist, Einhard Mumm, Roland Goldbach, Heiner E Schouten, Alexander Wildt, Jurgen eng England 2017/09/26 Phytochemistry. 2017 Dec; 144:180-188. doi: 10.1016/j.phytochem.2017.09.006. Epub 2017 Sep 22"