Blue light response on the early photomorphogenesis in rice

DOI

Bibliographic Information

Other Title
  • イネの初期の青色光形態形成反応におけるジベレリンの関与

Abstract

We have demonstrated that cryptochromes mediate blue light dependent photomorphogenetic responses in rice, such as growth inhibition of coleoptile, leaf blade and leaf sheath and declination angles of leaf blades.<br> To investigate the underlying mechanisms, we analyzed the change of gene expression induced by blue light by using microarray (Agilent rice 44k). Among the blue light induced genes, we found GA2ox genes, which inactivate the active GAs. Individual RT-PCR experiments confirmed that GA2ox genes were induced by blue but not by red light.<br> Next, we compared endogenous levels of various GAs in dark grown seedlings with those in blue light irradiated ones. GA1, active GA, was decreased by the blue light irradiation. Thus, GA2ox seems to be involved in blue light dependent photomorphogenetic responses in rice.

Journal

Details 詳細情報について

  • CRID
    1390001205631994240
  • NII Article ID
    130006993458
  • DOI
    10.14841/jspp.2008.0.0839.0
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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