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1990 Fiscal Year Final Research Report Summary

Analysis of Self-Incompatibility Regulatory Mechanisms and Research for its Application

Research Project

Project/Area Number 01560032
Research Category

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

Allocation TypeSingle-year Grants
Research Field 園芸・造園学
Research InstitutionNagoya University

Principal Investigator

TEZUKA Takafumi  Nagoya University, Agriculture, Associate Professor, 農学部, 助教授 (10109316)

Project Period (FY) 1989 – 1990
KeywordsSelf-incompatibility / Self-pollination / Canal secreting substance / Stylar canal cell / Pollen tube / Ion-radical / Germanium / Stress
Research Abstract

We have already reported that self-incompatibility reaction in lilies is caused by interaction between secreting substances from stylar canal cells and/or the canal cells and pollen tubes elongating in the canal. We, herein, elucidated the secreting substances are an important key for the regulatory mechanism analysis of the self-incompatibility. The self-incompatibility reaction was caused by the decrease in secreting substance contents and protein contents among the substances in the canal of self-pollinated pistils and by non-alteration of carbohydrates from high to low molecules among the secreting substances. Furthermore, there was a certain stimulus of pollen tube elongation among the secreting substances, and the stimulus promoted the pollen tube elongation in the lily pistil canal. This stimulus was a kind of nucleotides, and the metabolic system relating to its synthesis and its decomposition was partly elucidated.
The self-incompatibility phenomenon was regarded as a kind of stress reaction. This was estimated by the following aspects. Namely, the self-pollinated pistils produced a lot of ion-radicals (e. g. O_2) as compared with the cross-pollinated pistils and induced abnormal metabolic regulation with increase in activities of superoxide dismutase, catalase, glutathione reductase and so on. Furthermore, in self-pollinated pistils, the pollen tube elongation was stimulated in the canal by treatment with not only an inorganic germanium compound but an organic germanium compound. These results suggest that the self-pollinated pistils induced a kind of stress reactions by an appearance of "a husband who forced his wife to marry him" and produced much ion-radicals as compared with cross-pollinated pistils. As a result, self-incompatibility reaction was established. This research for the self-incompatibility mechanism in lilies should be progressed on the basis of above results.

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] Hiratsuka,S.,Tezuka,T.,Yamamoto,Y.: "Analysis of selfーincompatibility reaction in Easter lily by using heat treatments." J.Amer.Soc.Hort.Sci.114. 505-508 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 雨木 若慶, 手塚 修文, 山本 幸男: "テッポウユリの雌ずい物質が花柱内での花粉管伸長に及ぼす影響と受粉による花柱内物質の変動" 園学雑. 57. 648-654 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Amaki,W.,Tezuka,T.,Yamamoto,Y.: "Changes in enzyme activities after selfーpollination in Lilium longiflorum." Plant Cell Incomp.Newsl.21. 1-6 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tezuka,T.: "Is selfーincompatibility reaction regarded as a kind of stress?" Plant Cell Incomp.Newsl.22. 59-63 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 手塚 修文: "テッポウユリの自家不和合性機構とイオンラジカルとの関係" 園学雑. 59(別1). 608-609 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 手塚 修文: "ユリの自家不和合性" 植物細胞工学[自家不和合性研究の現状(特集)]. 2. 621-630 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hiratsuka, S., Tezuka, T. and Yamamoto, Y.: "Analysis of self-incompatibility reaction in the Easterlily by using heat treatments." J. Amer. Soc. Hort. Sci.114(3). 505-508 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Amaki, W., Tezuka, T. and Yamamoto, Y.: "Effect of pistillary sap on the in vivo pollen tube growth and changes in components of stylar sap by pollination in Lilium longiflorum Thumb." J. Japan. Soc. Hort. Sci.57(4). 648-654 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Amaki, w.. Tezuka, T. and Yamoto, Y.: "Changes in enzyme activities after self-pollination in Lilium logiflorum." Plant Cell Incomp. Newsl.21. 1-6 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tezuka, T.: "Is self-incompatibility reaction regarded as a kind of stress ?" Plant Cell Incomp. Newsl.22. 59-63 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tezuka, T.: "Relation between self-incompatible mechanism in Lilium longiflorum and ion radicals." J. Japan. Soc. Hort. Sci.59. 608-609 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tezuka, T.: "Self-incompatibility in the lily." Plant Cell Technology (Shokubutsu-Saibo-Kougaku). 2(5). 621-630 (1990)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1993-08-12  

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