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J Chem Ecol

Title:		Identification and Characterization of the Pheromones in the Minute Pirate Bug Orius sauteri (Heteroptera: Anthocoridae)
Author(s):		Uehara T; Maeda T; Shimoda M; Fujiwara-Tsujii N; Yasui H;
Address:		"Division of Insect Sciences, Institute of Agrobiological Sciences, NARO, Tsukuba, Ibaraki, 305-8634, Japan. tue@affrc.go.jp. Division of Insect Sciences, Institute of Agrobiological Sciences, NARO, Tsukuba, Ibaraki, 305-8634, Japan. Division of Applied Entomology and Zoology, Central Region Agricultural Research Center, NARO, Tsukuba, Ibaraki, 305-8666, Japan"
Journal Title:		J Chem Ecol
Year:		2019
Volume:		20190907
Issue:		10
Page Number:		811 - 817
DOI:		10.1007/s10886-019-01104-1
ISSN/ISBN:		1573-1561 (Electronic) 0098-0331 (Linking)
Abstract:		"The flower bug Orius sauteri is a generalist predator that occurs throughout Japan, and is a promising indigenous natural enemy for micro-pests such as thrips, aphids, and spider mites. We aimed to manipulate the attraction, dispersal, and settlement behavior of Orius bugs using natural chemical substances emitted by the bugs themselves. To identify potential candidates, we screened components in the whole-body extract of O. sauteri based on antennal response and then determined their chemical structure. A gas chromatograph electroantennographic detector (GC/EAD) indicated that the antennae of males responded to two components in the extract of females. GC/mass spectrometry (MS) showed that these two components were octenal and octadienal. Derivatization or GC-FT-IR analysis identified these components as (E)-2-octenal and (E)-2,7-octadienal. To assess the effect of these components on O. sauteri behavior, we conducted two assays. A field bioassay demonstrated that a blend of the two components functioned as a sex pheromone, and a dispersal assay showed that (E)-2-octenal generated a dose-dependent dispersal response. Our study will provide baseline information for enhancing the retention of O. sauteri on important commercial crops to prey on pest species"
Keywords:		"Aldehydes/analysis/isolation & purification/pharmacology Animals Behavior, Animal/drug effects Female Gas Chromatography-Mass Spectrometry Heteroptera/chemistry/*physiology Male Sex Attractants/*analysis/isolation & purification/pharmacology Spectroscopy, ;"
Notes:		"MedlineUehara, Takuya Maeda, Taro Shimoda, Masami Fujiwara-Tsujii, Nao Yasui, Hiroe eng 2019/09/09 J Chem Ecol. 2019 Oct; 45(10):811-817. doi: 10.1007/s10886-019-01104-1. Epub 2019 Sep 7"