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자료유형
학술저널
저자정보
Boo, Kyung-Saeng (Graduate School of Agricultural Biotechnology, Seoul National University ksboo@plaza. snu. ac.kr) Ahn, Seung-Joon (Graduate School of Agricultural Biotechnology, Seoul National University) Choi, Man-Yeon (Department of Entomology, iowa State University)
저널정보
한국응용곤충학회 Journal of Asia-Pacific Entomology Journal of asia-pacific entomology 제5권 제1호
발행연도
2002.1
수록면
43 - 48 (6page)

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This study was undertaken to clarify the suppression phenomenon of sex pheromone production after mating and its relationship to the physiological mechanism in adult females of Helicoverpa assulta, and determine the mating factor from males causing depletion of sex pheromone production. Sex pheromone production of H. assulta females was mostly terminated in 3 hours after mating. Mated females maintained with a low titer of sex pheromone until 3 days when it started to increase again, which showed a ciaracteristic of species mating more than once. The mated female again produced pheromone upon injection of pheromone biosynthesis activating neuropeotude (PBAN) or extracts of brain-suboesophageal ganglion complexes (Br-Sg) of mated female, which were shown similar pheromonotropic activities as compared with virgin females. These results indicated that the mating did not inhibit the receptivity of pheromone gland itself and PBAU biosynthesis in suboesophageal ganglion of the mated females. And it seems to support that the depletion of sex pheromone production is responsible for blocking of PBAN release from head. To investigate the mating factor from adult males, when extracts of reprohuctive organs of male were injected into hemocoel of virgin females evoking depletion of sex pheromone production as shown in mated female. The results suggest that a chemical substance(s) from the male reproductive organs could be responsible for the loss of sex pheromone biosynthesis in H. assulta.

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