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1996 Fiscal Year Final Research Report Summary

Which is the origin of the Phytoplasma, Plants or Insects?

Research Project

Project/Area Number 07456026
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 植物保護
Research InstitutionThe University of Tokyo

Principal Investigator

NUMBA Shigetou  The University of Tokyo, Graduate School of Agriculture and Agricultural Life Sciences, Professor, 大学院・農学生命科学研究科, 教授 (50189221)

Co-Investigator(Kenkyū-buntansha) 魯 暁云  日本学術振興会, 特別研究員
ISHIKAWA Yukio  The University of Tokyo, Graduate School of Agriculture and Agricultural Life Sc, 大学院・農学生命科学研究科, 助教授 (60125987)
LU Xiaoyun  Japan Society of the Promotion of Science, Research fellow
Project Period (FY) 1995 – 1996
KeywordsPhytoplasma / 16rRNA gene / CTAB / Bootstrap
Research Abstract

We have analyzed phytplasma in terms of molecular evolutionism, and studied in order to establish systems of genome analysis and molecular diagnosis. First, we gathered various separated roots of phytoplasma and refined the genome by the CTAB method. Then we amplified 16SrRNA genes by PCR and determined the whole base arrangemant by direct sequences. Further, we refered the newest base data of 16SrRNA genes in microbes including phytoplasma in other countries, using data base of the large computer, and compared the results to the base arrangement data we had before. Therefore, We have constructed the molecular genealogical family tree by large analysis program "ODEN" and proceeded "Bootstrap" to analyze reliablility. Under the analyzed data, we have established the classifying system of phytoplasma. Further, we have applyed the classification of "species" to phytoplasma by the above data and system, designed and composed the unique primer. Also we have tried to classify the unknown separated roots of phytoplasma in the various area of Asia.

  • Research Products

    (4 results)

All Other

All Publications (4 results)

  • [Publications] 難波成任: "MLOからファイトプラズマへ-ファイトプラズマの分類" 植物防疫. 50・4. 30-34 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Sato,M.Nanba.S.,Katsuharu,M.,Kanakita,H.,Mitsuhashi,W.,Kannbe,S.: "PCR(Polymcrase Chain Reaction)Detecbion of Phytoplasma in Phloon Sap Collected by Laser Sbylectomy" 日本植物病理学会報. 62・2. 177-180 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Nanba, S.: "Taxonomy of Phytoplasmas" Plant Protection. Vol.50.4. 30-34 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sato, M., Namba, S., Katsuhama, H., Mitsuhasi, W & Kawabe, S.: "PCR (Polymerase Chain Reaction) Detection of Phytoplasma in Phloem Sap Collected By Laser Stylectomy" Annals of the Phytopathological Society of Japan. Vol.62.2. 177-180 (1996)

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

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Published: 1999-03-09  

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