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Phyllosomas of smooth fan lobsters (Ibacus novemdentatus) encase jellyfish cnidae in peritrophic membranes in their feces
https://oacis.repo.nii.ac.jp/records/1740
https://oacis.repo.nii.ac.jp/records/17405b837ca6-68de-400c-8f32-b85065c63d41
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-05-27 | |||||
タイトル | ||||||
タイトル | Phyllosomas of smooth fan lobsters (Ibacus novemdentatus) encase jellyfish cnidae in peritrophic membranes in their feces | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題 | feeding ecology, nematocyst, plankton, Scyphozoa, toxin, venom | |||||
資源タイプ | ||||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
著者 |
Kamio, Michiya
× Kamio, Michiya× Wakabayashi, Kaori× Nagai, Hiroshi× Tanaka, Yuji |
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書誌情報 |
Plankton and Benthos Research 巻 11, 号 3, p. 100-104, 発行日 2016-08-26 |
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抄録 | ||||||
内容記述 | Jellyfish possess venomous cnidae on their tentacles to capture and consume marine zooplankton. Nevertheless, the planktonic larvae of the smooth fan lobster (Ibacus novemdentatus), known as phyllosoma, prey on jellyfish and successfully ingest both tentacle tissue as well as constituent cnidae, despite the presence of the venom-filled explosively penetrant cnidae or nematocysts. In the present study, we hypothesized that phyllosomas have mechanical and/or physiological resistance to internal envenomation by ingested nematocysts. To test this hypothesis, we examined the feces of phyllosomas (n=5) that were fed with Japanese sea nettle (Chrysaora pacifica) and found both undischarged as well as discharged cnidae surrounded by peritrophic membrane. We surmise that this membrane may mechanically insulate the lining of the midgut from stinging nematocysts to avoid injection of jellyfish venom into the phyllosomas’ body by nematocyst tubule penetration. We then tested physiological sensitivity of the phyllosomas (n=10) to crude extract of tentacle cnidae injected into their bodies. For this experiment, we used a crude venom extract prepared from nematocysts isolated from tentacles of a rhizostome jellyfish (Nemopilema nomurai) after exposure to high salt which disrupted tentacle integrity, and phosphate-buffered saline as a control. Nine out of 10 animals died after the injection of crude venom extract, while none of the animals died in the control group. These results indicate that the defense of phyllosoma larvae against the toxin of jellyfish is a combination of mechanical inactivation of the ingested nematocysts and chemical digestion of the toxin in the midgut rather than physiological resistance against the toxin. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 18808247 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA12130745 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.3800/pbr.11.100 | |||||
情報源 | ||||||
関連識別子 | https://doi.org/10.3800/pbr.11.100 | |||||
関連名称 | Publisher's Version/PDF (OpenAccess) | |||||
情報源 | ||||||
関連識別子 | http://www.plankton.jp/ | |||||
関連名称 | 日本プランクトン学会 | |||||
情報源 | ||||||
関連識別子 | http://benthos-society.jp | |||||
関連名称 | 日本ベントス学会 | |||||
情報源 | ||||||
関連識別子 | https://kaken.nii.ac.jp/ja/grant/KAKENHI-PROJECT-16K01911/ | |||||
関連名称 | KAKEN研究課題: 海洋危険生物の有する痛み惹起物質の解明 | |||||
情報源 | ||||||
関連識別子 | https://nrid.nii.ac.jp/ja/nrid/1000050291026/ | |||||
関連名称 | 研究代表者: 永井 宏史 (東京海洋大学) | |||||
件名 | ||||||
主題 | 科学研究費研究成果 | |||||
論文ID(NAID) | ||||||
識別子タイプ | NAID | |||||
関連識別子 | 130005407001 | |||||
出版者 | ||||||
出版者 | 日本プランクトン学会 | |||||
出版者 | ||||||
出版者 | 日本ベントス学会 | |||||
科学研究費研究課題 | ||||||
主題 | 海洋危険生物の有する痛み惹起物質の解明 | |||||
研究課題番号 | ||||||
内容記述 | 16K01911 |