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EXAMINATION ON THE ALLELOCHEMICALS OF CORALLINACEAN ALGAE BY BIALGAL CULTURES WITH OTHER SPECIES

Research Project

Project/Area Number 04640634
Research Category

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

Allocation TypeSingle-year Grants
Research Field 植物形態・分類学
Research InstitutionHOKKAIDO UNIVERSITY

Principal Investigator

TATEWAKI Masakazu  HOKKAIDO UNIVERSITY, FACULTY OF SCIENCE.PROFESSOR, 理学部, 教授 (50000881)

Co-Investigator(Kenkyū-buntansha) DENBOH Takashi  HOKKAIDO UNIVERSITY, FACULTY OF SCIENCE.TECHNICAL ASSISTANT, 理学部, 教務職員 (70207512)
SUZUKI Minoru  HOKKAIDO UNIVERSITY, GRADUATE SCHOOL OF ENVIRONMENTAL EARTH SCIENCE.ASSOCIATE PR, 大学院・地球環境科学研究科, 助教授 (30000855)
Project Period (FY) 1992 – 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1993: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1992: ¥1,600,000 (Direct Cost: ¥1,600,000)
KeywordsAllelochemicals / Bialgal culture / Corallinacean algae / Coralline flat / Growth inhibitory / Maturity inhibitory / Nutritional requirement / Useful algae. / 有節さんごも / 二藻培養法 / 生長阻害 / 有機スズ / 臭化化合物
Research Abstract

Some species of corallinacean algae were cultured unialgally and examined to secrete allelochemicals using the bialgal culture method with useful algae, i.e., Laminaria Japonica and L.angustata.
(1) Two species of corallinacean algae inhibited remarkably growth and maturity of Laminaria gametophytes and sporophytes at higher temperatures by bialgal cultures, but did not at lower temperatures.
(2) It has been known that Laminaria spp. require iron for the maturity of gametophytes. When cultured bialgally with a big piece of corallinacean algae at 14゚C, however, the gametophytes were inhibited significantly their maturity and growth without relation to iron concentrations.
(3) Nutritional requirements of Pneophyllum zostericolum were examined for the development of axnic culture media. This alga grew better in a 1/8 concentration of inorganic P in Grund medium and in 1/2 - 2 times of organic P concentrations of PES medium. Nitrate was an essential element and accelated the good growth with calcium.
From these results, the production of allelochemicals, inhibited the growth and maturity of other species, from corallinacean algae was confirmed, but chemicals were not kinds of low boiling point bromic compounds. The production of allelochemicals from corallinacean algae decreased at lower temperatures and it may have explained that kelp zones recover from a coralline flat area during winter season.

Report

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

    (6 results)

All Other

All Publications (6 results)

  • [Publications] Deshmukhe,G.V.& Tatewaki,M.: "Occurrence of somatic diploidization in the life history of Coilodesme japonica(Phaeophyta)." Phycologia. 32. 197-203 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Mine,I.& Tatewaki,M.: "Attachment and fusion of gametes during fertilization of Palmaria sp.(Rhodophyta)." Journal of Phycology. 30. 55-66 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] DESHMUKHE, G.V.P TATEWAKI, M.: "Occurrence of somatic diploidization in the life history of Coilodesme japonica(Dictyosiphonales, Phaeophyta)" Phycologia. 32(3). 197-203 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] MINE, I.& TATEWAKI, M.: "Attachment and fusion of gametes during fertilization of Palmaria sp.(Rhodophyta)" Journal of Phycology. 30(1). 55-66 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Deshmukhe,G.V.& Tatewaki,M.: "Occurrence of somatic diploidization in the life history of Coilodesme japonica(Phaeophyta)." Phycologia. 32. 197-203 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Mine,I.& Tatewaki,M.: "Attachment and fusion of gametes during fertilization Palmaria sp.(Rhodophyta)." Journal of Phycology. 30. 55-66 (1994)

    • Related Report
      1993 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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