title: Effect of rearing conditions on production of sternal gland secretion, and identification of minor components in the sternal gland secretion of the predatory stink bug Eocanthecona furcellata.
abstract: Production of the male specific compound, 6,10,13-trimethyltetradecyl isovalerate by the predatory stink bug Eocanthecona furcellata (Wolff) was dramatically affected by rearing conditions. Male bugs kept isolated after eclosion produced an average of 1,948 ng of 6,10,13-trimethyltetradecyl isovalerate per bug, whereas male bugs reared in groups of 5-8 bugs produced an average of only 4 ng of 6,10,13-trimethyltetradecyl isovalerate per bug. Same-sex or mixed-sex pairs of bugs produced less than 50 ng per bug. Male bugs kept isolated for 1 wk and then grouped for 1 wk produced 3 ng of 6,10,13-trimethyltetradecyl isovalerate per bug, whereas male bugs grouped first and then isolated produced 135 ng of 6,10,13-trimethyltetradecyl isovalerate. A total of 11 minor components in relative amounts of less than 1% of the major 6,10,13-trimethyltetradecyl isovalerate were found in the sternal gland secretion. These included 6,10,13-trimethyltetradecanol, acetate, propionate, and butyrate esters of 6,10,13-trimethyltetradecanol, and isovalerate or valerate esters of homologs of 6,10,13-trimethyltetradecanol.
authors.affiliation: Institute of Zoology, Academia Sinica, Taipei, Taiwan 115, Republic of China. shine@gate.sinica.edu.tw
authors.forename: Hsiao-Yung
authors.initials: HY
authors.lastname: Ho
authors.forename: Yun-Che
authors.initials: YC
authors.lastname: Hsu
authors.forename: Ya-Chun
authors.initials: YC
authors.lastname: Chuang
authors.forename: Yien-Shing
authors.initials: YS
authors.lastname: Chow
mesh_terms: D000818:Animals; D005088:Exocrine Glands / Q000378:metabolism; D020062:Heteroptera / Q000254:growth & development / Q000502:physiology*; D008297:Male; D010421:Pentanoic Acids / Q000032:analysis / Q000378:metabolism*; D012724:Sex Attractants / Q000032:analysis / Q000378:metabolism*
chemical_list: C503512:6,10,13-trimethyltetradecyl isovalerate; D010421:Pentanoic Acids; D012724:Sex Attractants