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ISSN : 1225-0171(Print)
ISSN : 2287-545X(Online)
Korean Journal of Applied Entomology Vol.45 No.3 pp.375-380
DOI :

프루텔고치벌(Cotesia plutellae)의 촉각 감각기 분포와 편절제거가 기생력에 미치는 영향

초록

Distribution of Antennal Sensilla in Cotesia plutellae and Effect of Flagellectomy on Parasitism

김용균, 박정아

Abstract

  A solitary endoparasitoid, Cotesia plutellae, parasitizes diamondback moth, Plutellae xylostella. It bas been suggested that its antennae are a major sensory organ to search host and recognize host developmental and other physiological condition during parasitization. This research was performed to understand the parasitic behavior of C. plutellae by analyzing sensory types and their numbers on the antennae using scanning electron microscope. There was no significant difference in antennal length in both male and female C. plutellae, in which both sexes had 16 flagellomeres. Three different types of sensilla (trichoid, seta, and placodea sensilla) were located mostly on flagella and analyzed in their density on the different antennomeres. Trichoid sensillum was the major sensory type and showed about 87% density among all sensilla. Both trichoid and placodea types of sensilla exhibited even numbers on all flagellomeres with some decrease at terminal segments. In contrast, seta form of sensilla showed drastic increase in its density at distal part after 9th flagellomere. When distal half of flagellomeres were cut off, the C. plutellae could not parasitize host larvae. Even when only four distal flagellorneres were removed, the parasitism showed only 30%. These results indicate that C. plutellae antennae are required for parasitism and suggest that seta form of sensilla may play significant roles in recognizing host for parasitization.
Parasitism, Antenna, Cotesia plutellae, Plutella xylostella, Sensillum, Flagellectomy, 기생, 촉각, 프루텔고치벌, 배추좀나방, 감각기, 편절제거

Reference

Vol. 40 No. 4 (2022.12)

Journal Abbreviation Korean J. Appl. Entomol.
Frequency Quarterly
Doi Prefix 10.5656/KSAE
Year of Launching 1962
Publisher Korean Society of Applied Entomology
Indexed/Tracked/Covered By