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The study on allorecognition in colonial animals

Research Project

Project/Area Number 03455008
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 広領域
Research InstitutionUniversity of Tsukuba

Principal Investigator

SAITO Yasunori  Univ.of Tsukuba, Biol.Sci., Assistant professor, 生物科学系, 講師 (00196015)

Co-Investigator(Kenkyū-buntansha) MIYAZAKI Junichi  Univ.of Tsukuba, Biol.Sci., Assistant professor, 生物科学系, 講師 (80229830)
Project Period (FY) 1991 – 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 1993: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1992: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1991: ¥2,500,000 (Direct Cost: ¥2,500,000)
KeywordsSponge / Bryozoa / Botryllid / Allorecognition / Immunity / Tunicate / 生体防御 / イタボヤ類 / イソカイメン類 / コケムシ類 / 癒合性遺伝子 / 拒絶反応 / 走化性
Research Abstract

1. The two species of Japanese sponges, Hilichondria okadai and H.Japonica, showed allorecognition responses. A piece of an individual fused with another piece of the same individual, but did not fuse with the piece of the other individual. This suggests that the genes controlling allorecognition show high polymorphism. On the contrary, the rate of fusion among larvae from a single female individual was very high. In a larva the mechanism of allorecognition might be too immature to reject incompatible larvae.
2. Bryozoan colonies showed allorecognition responses. Fusion or destruction of zooeciums was observed along the boundary between two contact colonies.
3. It was already reported that botryllid ascidians show the delayd allorecognition responses when two incompatible colonies has fused. This responses are called "colony resorption", and botryllids display a hierarchy of this responses.
It becomes clear that the ability of allorecognition is common among colonial invertebrates. However, it is unclear whether the ability of allorecognition has been kept in only colonial animals through their evolution processes or that ability is a common and basic function for all animals. We need much study on the genetics of allorecognition in sponges and bryozoans in order to compare with MHC of vertabrates, and also need examination of many animals of other phylum about the presence of allorecognition.

Report

(4 results)
  • 1993 Annual Research Report   Final Research Report Summary
  • 1992 Annual Research Report
  • 1991 Annual Research Report
  • Research Products

    (26 results)

All Other

All Publications (26 results)

  • [Publications] 齊藤康典: "原索動物の自己・非自己の認識" 細胞. 23. 538-542 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Hirose,E.: "Tunic cell morphology and classification in botryllid ascidians" Zool.Sci.8. 951-958 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Hirose,E.: "Threadlike bacteria in the tunic of a botryllid ascidian" Hiyoshi Rev.Natl.Sci.Keio Univ.12. 108-110 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Rinkevich,B.: "Self-nonself recognition in the colonial protochordate Botryllus schlosseri from Mutsu Bay,Japan" Zool.Sci.9. 983-988 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Rinkevich,B.: "Allogenelc responses between three remote populations of the cosmopolitan ascidian Botryllus schlosseri" Zool.Sci.9. 989-994 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Rinkevich,B.: "A colonial invertebrate species that displays a hierarchy of allorecognition responses" Biol.Bull.184. 79-86 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Hirose,E.: "Phagocytic activity of tunic cells in the colonial ascidian Aplidium yamazii(Polyclinidae,Aplousobranchia)" Zool.Sci.(印刷中).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Saito,Y.: "Allorecognition in compound ascidians" Int.J.Dev.Biol.(印刷中).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Saito,Y.: "Humoral factors in tunicates" Prog.Molec.Subcell.Biol.(印刷中).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Saito, Y.: "Self-nonself recognition in protochordates (in Japanese)" Saibou. 23. 538-542 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Hirose, E.: "Tunic cell morphology and classification in botryllid ascidians" Zool.Sci.8. 951-958 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Hirose, E.: "Threadlike bacteria in the tunic of a botryllid ascidian" Hiyoshi Rev.Natl.Sci.Keio Univ.12. 108-110 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Rinkevich, B.: "Self-nonself recognition in the colonial Protochordate Botryllus scholsseri form Mutsu Bay, Japan" Zool.Sci.9. 938-988 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Rinkevich, B.: "Allogeneic responses between three remote populations of the cosmopolitan ascidian Botryllus scholsseri" Zool.Sci.9. 989-994 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Rinkevich, B.: "A colonial invertebrate species that displays a hierarchy of allorecoginition responses" Biol.Bull.184. 79-86 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Hirose, E.: "Phagocytic activity of tunic cells in the colonial ascidian Aplidium yamazii (Polyclinidae, Aplousobranchia)" Zool.Sci.(in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Saito, Y.: "Allorecoginition in compound ascidians" International Journal of Developmental Biology. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Saito, Y.: "Humoral factors in tunicates" Progress in Molecular and Subcellular Biology. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Rinkevich,B.: "A colonial invertebrate species that displays a hierarchy of allorecognition responses" Biol.Bull.184. 79-86 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Hirose,E.: "Phagocytic activity of tunic cells in the colonial ascidian Aplidium yamazii(Polyclinidae,Aplousobranchia)" Zool.Sci.(印刷中).

    • Related Report
      1993 Annual Research Report
  • [Publications] Saito,Y.: "Allorecognition in compound ascidians" Int.J.Dev.Biol.(印刷中).

    • Related Report
      1993 Annual Research Report
  • [Publications] Saito,Y.: "Humoral factors in tunicates" Prog.Molec.Subcell.Biol.(印刷中).

    • Related Report
      1993 Annual Research Report
  • [Publications] B.Rinkevich&Y.Saito: "Self-Nonself Recognition in the Colonial Protochordate Botryllus schlosseri from Mutsu Bay,Japan" Zool.Sci.9. 983-988 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] B.Rinkevich,M.Shapira,I.L.Weissman&Y.Saito: "Allogeneic Responses between Three Remote Populations of the Cosmopolitan Ascidian Botryllus schlosseri" Zool.Sci.9. 989-994 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] E.Hirose&Y.Saito: "Threadlike Bacterua in the Tunic of a Botryllid Ascidian" Hiyoshi Rev.Nati.Sci.Keio Univ.12. 108-110 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 齋藤 康典: "原索動物ホヤの自己・非自己の認識" 細胞. 23. 538-542 (1991)

    • Related Report
      1991 Annual Research Report

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Published: 1991-04-01   Modified: 2016-04-21  

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