In Vivo and in Vitro Conversion of Teasterone to Typhasterol in Cultured Cells of Marchantia Polymorpha

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概要

• 論文の詳細を見る

• Identification by full-scan GC-MS revealed that [^2H_6]teasterone fed to suspension cultured cells of Marchantia polymorpha was converted to [^2H_6]3-dehydroteasterone and [^2H_6]typhasterol. This indicates that the cells carry out a C3-epimerization in which teasterone is converted to typhasterol via 3-dehydroteasterone. In vitro enzymatic conversions of teasterone to typhasterol were also investigated. A crude cytosolic solution prepared from Marchantia cells catalyzed not only the dehydrogenation of teasterone to 3-dehydroteasterone but also the reduction of 3-dehydroteasterone to typhasterol. The major 4-demethysterol in cultured M.polymorpha cells was 24-methylcholesterol, the precursor of brassinosteroids. These results suggest that enzymes similar to those involved in the early C-6 oxidation pathway of the brassinosteroid biosynthesis are present in the liverwort.

• 日本植物生理学会の論文

著者

• TAKATSUTO Suguru

  Department of Chemistry, Joetsu University of Education

• Park Seung-hyun

  Department Of Applied Biological Chemistry The University Of Tokyo

• Park Seung-hyun

  Department Of Life Science Chung-ang University

• Kim S‐k

  Hanyang Univ. Seoul Kor

• Kim Seong-ki

  Department Of Agricultural Chemistry The University Of Tokyo

• YOKOTA TAKAO

  Department of Pediatrics, The Second Tokyo National Hospital

• KIM Tae-Wuk

  Department of Life Science, Chung-Ang University

• Han Kwang-Seok

  Department of Life Science, Chung-Ang University

• Shim Jae-Kuk

  Department of Life Science, Chung-Ang University

• Han Kwang-seok

  Department Of Life Science Chung-ang University

• Takatsuto Suguru

  Joetsu Univ. Of Education

• Yokota T

  Faculty Of Agriculture Shizuoka University

• Yuuki T

  Asahi Breweries Ltd. Ibaraki Jpn

• Kim T‐w

  Department Of Life Science Chung-ang University

• Yokota Takao

  Department Of Agricultural Chemistry The University Of Takyo

• Shim Jae-kuk

  Department Of Life Science Chung-ang University

• Shim Jae-kuk

  Department Of Agricultural Chemistry Faculty Of Agriculture The University Of Tokyo

• Takatsuto Suguru

  Department Of Chemistry Joetsr University Of Education

• Yokota Takao

  Iss Science Project Office Institute Of Space And Astronautical Science Japan Aerospace Exploration

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