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Blue-light promotion of flowering is absent in hy4 mutants of Arabidopsis

libingbing 添加于 2010-4-28 21:24 | 837 次阅读 | 0 个评论

作者
Bagnall DJ, King RW, Hangarter RP
摘要
Abstract Loss of a blue-light photoreceptor in the hy4 mutants of Arabidopsis thaliana (L.) Heynh substantially delayed flowering (>100 d to flower vs. 40–50 d), especially with blue light exposure from lamps lacking much red (R) and/or far-red (FR) light. Red night breaks were promotory but flowering was still later for the hy4-101 mutant. However, with exposure to light from FR-rich lamps, flowering of all mutants was early and no different from the wild type. Thus, flowering of Arabidopsis involves a blue-light photoreceptor and other, often more effective photoreceptors. The latter may involve phytochrome photoresponses to R and FR, but with little or no phytochrome response to blue wavelengths.
详细资料
- 文献种类:期刊
- 期刊名称: Planta
- 期刊缩写: Planta
- 期卷页: 1996年第200卷第2期
- ISBN: 0032-0935
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