간행물
한국응용곤충학회 학술대회논문집
- 발행기관 한국응용곤충학회
- 자료유형 학술대회
- 간기 반년간
- 수록기간 2000 ~ 2024
- 주제분류 농수해양 > 농학 농수해양 분류의 다른 간행물
- 십진분류KDC 495DDC 595
권호리스트/논문검색
international Symposium on Mites & Whitefly Vol 1 (2008년 10월) 62건
Poster Presentation
61.
2008.10
구독 인증기관·개인회원 무료
The water mites are distributed widely through ponds, lakes and mountain streams. In part of their life cycle, larvae of water mites typically attach on adult aquatic insects including hemipterans, odonates, coleopterans, trichopterans, ephemeropterans, plecopterans and dipterans. Most of the information on hostparasite interactions comes from studies of lentic mites and insects, while relatively little is known about the relationships between lotic mites and insects. The purpose of this study is to elucidate the host-parasite interactions between lotic water mite larvae and host insects in mountain streams. We investigate mite attachment on aquatic insects collected at mountain streams in Kanagawa and Shizuoka Prefectures, Japan. Aquatic insects were collected by light-trap and hand-sweeping from May to August 2008. Aquatic insects were identified to species or genus. The parasitic nature of mite larvae on aquatic insects was examined. The distribution of water mite larvae on host insects was analyzed using the Chi Square Test. As a result, a total of 1716 specimens of aquatic insects representing Megaloptera, Trichoptera, Ephemeroptera, Plecoptera and Diptera were collected. Mites were associated with 31.2% of the total number of aquatic insects. Mite larvae in the genus Stygothrombium were associated with Plecoptera. Protzia larvae were associated with Trichoptera and Diptera. Stygomomonia larvae were associated with Trichoptera. Protzia larvae showed a preference for abdomen of Wormaldia sp. [Trichoptera] (P<0.0001, χ²= 133.3631). Protzia larvae however, showed a preference for prothorax of Antocha sp. [Diptera] (P<0.01, χ²=18.3077). Stygomomonia larvae showed a preference for mesothorax and abdomen of Stenopsyche marmorata [Trichoptera] (P<0.0001, χ²=1147.857). From these results, it is considered that mite larvae show certain host preferences for aquatic insects as well as site preferences for the body parts of host insects.
62.
2008.10
구독 인증기관·개인회원 무료
Toshio Sasai, Yunosuke Hirano, Sayaka Maeda, Isamu Matsunaga, Atsushi Otsuka, Daisuke Morita, Ritsuo Nishida, Hideo Nakayama, Yasumasa Kuwahara, Masahiko Sugita, Naoki Mori
α-Acaridial [2(E)-(4-methyl-3-pentenyl)butenedial] is a novel monoterpene secreted from the house dust mites. Because of its molecular nature of a highly reactive, small lipidic compound, we addressed whether α-acaridial might function as a haptenic allergen that induced allergic contact dermatitis. Mice sensitized with α-acaridial were challenged by the same antigen on the ear skin. After 2 days, significant ear swelling with a prominent infiltration of CD4+ T lymphocytes was observed. In vitro, α-acaridial exhibited an outstanding ability to quickly interact with and chemically modify a reference protein. Virtually all cysteine residues and a sizable fraction of lysine residues were found to be selectively modified, suggesting that α-acaridial could potentially interact with any proteins. Previously, numerous mite-derived proteinaceous allergens have been associated with contact dermatitis. Our study now emphasizes that small lipidic compounds released from mites comprise a new class of mite allergens, and therefore, is of significant medical implications.
