47 Brassinosteroid-regulation of photomorphogenesis -a study using brassinosteroid-biosynthesis-specific inhibitor, Brz-

DOI

Bibliographic Information

Other Title
  • 47 ブラシノステロイド生合成阻害剤Brzを用いた光形態形成制御機構の解析

Abstract

We studied hormonal regulation of photomorphogenesis using cucumber seedlings with brassinosteroid-biosynthesis-specfic inhibitor, Brassinazole(Brz). When seedlings were germinated in the dark in half MS agar medium containing Brz, cotyledon opening was observed with inhibited hypocotylelongation. However, when they were germinated in distilled water, agar or soil containing Brz in the dark, neigher hook unfolding nor cotyledon opening was observed. In contrast, cytokinin treatment caused both of them in any of these growth conditions. We also analyzed endogenous BRs for light-and dark-grown seedlings by GC-MS. Light-grown plants accumulated more castasterone than dark-grown ones. Based upon these observations, we will discuss on the hormonal regulation of photomorphgenesis

Journal

Details 詳細情報について

  • CRID
    1390001204422899712
  • NII Article ID
    110001853457
  • DOI
    10.18978/jscrpanb.34.0_97
  • ISSN
    21896313
    09191887
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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