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Titolo:
Identification and synthesis of a male-produced sex pheromone from the stink bug Chlorochroa sayi
Autore:
Ho, HY; Millar, JG;
Indirizzi:
Univ Calif Riverside, Dept Entomol, Riverside, CA 92521 USA Univ Calif Riverside Riverside CA USA 92521 omol, Riverside, CA 92521 USA Acad Sinica, Inst Zool, Taipei 115, Taiwan Acad Sinica Taipei Taiwan 115Acad Sinica, Inst Zool, Taipei 115, Taiwan
Titolo Testata:
JOURNAL OF CHEMICAL ECOLOGY
fascicolo: 6, volume: 27, anno: 2001,
pagine: 1177 - 1201
SICI:
0098-0331(200106)27:6<1177:IASOAM>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
NEZARA-VIRIDULA L; MEDITERRANEAN FRUIT-FLY; BIBAX BREDDIN HEMIPTERA; AGGREGATION PHEROMONE; THYANTA PALLIDOVIRENS; SUBSTRATE-BORNE; MATE LOCATION; L HETEROPTERA; PENTATOMIDAE; EUSCHISTUS;
Keywords:
Chlorochroa sayi; Pentatomidae; pheromone; methyl geranate; methyl citronellate; methyl (E)-6-2,3-dihydrofarnesoate; Y-tube bioassay; reproductive behavior;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
64
Recensione:
Indirizzi per estratti:
Indirizzo: Millar, JG Univ Calif Riverside, Dept Entomol, Riverside, CA 92521 USA Univ Calif Riverside Riverside CA USA 92521 side, CA 92521 USA
Citazione:
H.Y. Ho e J.G. Millar, "Identification and synthesis of a male-produced sex pheromone from the stink bug Chlorochroa sayi", J CHEM ECOL, 27(6), 2001, pp. 1177-1201

Abstract

The reproductive behavior of the stink bug Chlorochroa sayi was studied inthe laboratory. There was a sexual maturation period of about 10 days before bugs began mating. Sexually mature adult bugs engaged in courtship consisting of antennation and head-butting of the female by the male, before thefemale adopted a receptive posture and copulation occurred. Both sexes mated multiple times during their life-spans, with the mean duration of copulations of virgin bugs (42.3 +/- 19.6 min) and experienced bugs (37.3 +/- 28.4 min) being similar. Most matings were initiated in the late afternoon or evening, when pheromone production by males was greatest. Males transferredsperm and nutrients constituting about 17% of their body weight to femalesduring mating. Three male-specific components, methyl geranate, methyl citronellate, and methyl (E)-6-2,3-dihydrofarnesoate in a ratio of 100 : 0.45 : 1.6, were first detected in volatiles collected from male bugs on green beans about 9-12 days after the final molt to the adult stage. In vertical Y-tube bioassays, females were attracted to odors from mature male bugs, andto a blend of the three male-produced components. Low numbers of females also were attracted in field trials with the three-component blend. The relatively weak attraction may be a result of other, as yet unknown cues being required in addition to the pheromone, such as visual or substrate-borne vibrational cues.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 14/07/20 alle ore 06:59:42