Article
Cryptochrome and phytochrome cooperatively but independently reduce active gibberellin content in rice seedlings under light irradiation.
Plant & cell physiology - 1 Sept 2012
Hirose Fumiaki, Inagaki Noritoshi, Hanada Atsushi, Yamaguchi Shinjiro, Kamiya Yuji, Miyao Akio, Hirochika Hirohiko, Takano Makoto
Abstract excerpt
In contrast to a wealth of knowledge about the photoregulation of gibberellin metabolism in dicots, that in monocots remains largely unclear. In this study, we found that a blue light signal triggers reduction of active gibberellin content in rice seedlings with simultaneous repression of two gibberellin 20-oxidase genes (OsGA20ox2 and OsGA20ox4) and acute induction of four gibberellin 2-oxidase genes...
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