Nitric oxide represses the Arabidopsis floral transition

被引：437

作者：

He, YK

Tang, RH

Hao, Y

Stevens, RD

Cook, CW

Am, SM

Jing, LF

Yang, ZG

Chen, LG

Guo, FQ

Fiorani, F

Jackson, RB

Crawford, NM

Pei, ZM ^{[1
]}

机构：

[1] Duke Univ, Dept Biol, Durham, NC 27708 USA

[2] Capital Normal Univ, Dept Biol, Beijing 100037, Peoples R China

[3] Duke Univ, Med Ctr, Mass Spectrometry Lab, Res Triangle Pk, NC 27709 USA

[4] Duke Univ, Med Ctr, Orthopaed Res Lab, Durham, NC 27710 USA

[5] Univ Calif San Diego, Div Biol Sci, La Jolla, CA 92093 USA

来源：

SCIENCE | 2004年 / 305卷 / 5692期

关键词：

D O I：

10.1126/science.1098837

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The correct timing of flowering is essential for plants to maximize reproductive success and is controlled by environmental and endogenous signals. We report that nitric oxide (NO) repressed the floral transition in Arabidopsis thaliana. Plants treated with NO, as well as a mutant overproducing NO (nox1), flowered late, whereas a mutant producing less NO (nos1) flowered early. NO suppressed CONSTANS and GIGANTEA gene expression and enhanced FLOWERING LOCUS C expression, which indicated that NO regulates the photoperiod and autonomous pathways. Because NO is induced by environmental stimuli and constitutively produced, it may integrate both external and internal cues into the floral decision.

引用

页码：1968 / 1971

页数：4

共 23 条

[1] Nitric oxide stimulates seed germination and de-etiolation, and inhibits hypocotyl elongation, three light-inducible responses in plants [J].