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Biosci Biotechnol Biochem

Title:		"Isovaleronitrile co-induced with its precursor, l-leucine, by herbivory in the common evening primrose stimulates foraging behavior of the predatory blue shield bug"
Author(s):		Noge K; Tamogami S;
Address:		"a Department of Biological Production , Akita Prefectural University , Akita , Japan"
Journal Title:		Biosci Biotechnol Biochem
Year:		2018
Volume:		82
Issue:		3
Page Number:		395 - 406
DOI:		10.1080/09168451.2018.1433019
ISSN/ISBN:		1347-6947 (Electronic) 0916-8451 (Linking)
Abstract:		"Herbivore-induced plant volatiles play important roles in plant-insect and plant-plant interactions. The common evening primrose, Oenothera biennis, is often infested by the flea beetle, Altica oleracea, on which the predatory blue shield bug, Zicrona caerulea, is usually found. This observation suggests that the predatory bug can discriminate infested plants from intact ones to locate its prey. In this study, l-leucine-derived nitrogen-containing compounds [isovaleronitrile (3-methylbutanenitrile), (E/Z)-isovaleraldoxime and 3-methyl-1-nitrobutane] and some terpenes were identified as a characteristic volatile blend from herbivore-infested O. biennis leaves by gas chromatography/mass spectrometry, chemical synthesis, and incorporation assays using deuterium-labeled l-leucine. Volatile emission was also elicited by exogenous methyl jasmonate (MeJA), but not by mechanical damage. l-Leucine accumulated temporarily in O. biennis leaves after MeJA treatment prior to isovaleronitrile emission. Behavioral assays revealed that Z. caerulea showed a strong preference for herbivore-infested leaves, their volatiles, and isovaleronitrile in laboratory conditions"
Keywords:		Acetates/pharmacology Animals Cyclopentanes/pharmacology Hemiptera/*drug effects Herbivory/*drug effects Leucine/*metabolism Nitriles/*metabolism/*pharmacology Oenothera biennis/*metabolism Oxylipins/pharmacology Pentanes/*metabolism/*pharmacology Plant L;
Notes:		"MedlineNoge, Koji Tamogami, Shigeru eng England 2018/03/01 Biosci Biotechnol Biochem. 2018 Mar; 82(3):395-406. doi: 10.1080/09168451.2018.1433019"