46.ヒメツリガネゴケが生産するステロイドホルモン(口頭発表)

• 野村 崇人

  宇大・雑草:帝京大・バイオ

• 柴田 恭美

  帝京大・バイオ

• 藤田 知道

  北大院・理

• 中野 雄司

  理研・中央研

• 横田 孝雄

  帝京大・バイオ

書誌事項

タイトル別名

• 46. Endogenous steroid hormones in Physcomitrella patens

抄録

Genetic studies have revealed that brassinosteroids (BRs) are essential plant hormones for growth and development of seed plants. However, little is known about the occurrence and physiological roles of BRs in ferns and moss. The biosynthesis genes of sterols are highly conserved in lower to higher plants. However, the genome of the moss, Physcomitrella patens comprises no genes with high similarity to BR biosynthesis genes of seed plants. In order to know whether P. patens produces BRs, we analyzed endogenous BRs in the protonema using GC-MS. Furthermore, we also analyzed endogenous animal steroid hormones using the same material although their roles and biosynthesis in plants are unknown. As the result, a small amount of castasterone that is a biological active form in seed plants and a series of the precursors such as 6-dexoxocastasterone were identified in P. patens. In addition, animal steroid hormones including progesterone were also identified. These findings may imply that not only BRs but also animal steroid hormones had been utilized as physiologically active steroids before the branching-off from the common ancestor into moss and seed plants.

収録刊行物

• 植物化学調節学会 研究発表記録集

  植物化学調節学会 研究発表記録集 44 (0), 60-, 2009

  一般社団法人 植物化学調節学会

詳細情報

• CRID: 1390282679399862144
• NII論文ID: 110007468306
• DOI: 10.18978/jscrpanb.44.0_60
• ISSN: 21896313
• ISSN: 09191887
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可