SUB1, an Arabidopsis Ca2+-binding protein involved in cryptochrome and phytochrome coaction

被引:102
作者
Guo, HW [1 ]
Mockler, T [1 ]
Duong, H [1 ]
Lin, CT [1 ]
机构
[1] Univ Calif Los Angeles, Dept Mol Cell & Dev Biol, Los Angeles, CA 90095 USA
关键词
D O I
10.1126/science.291.5503.487
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
Cryptochromes and phytochromes are the major photosensory receptors in plants and often regulate similar photomorphogenic responses. The molecular mechanisms underlying functional interactions of cryptochromes and phytochromes remain Largely unclear. We have identified an Arabidopsis photomorphogenic mutant, sub1, which exhibits hypersensitive responses to blue light and far-red Light. Genetic analyses indicate that SUB1 functions as a component of a cryptochrome signaling pathway and as a modulator of a phytochrome signaling pathway. The SUB1 gene encodes a Ca2+-binding protein that suppresses Light-dependent accumulation of the transcription factor HY5.
引用
收藏
页码:487 / 490
页数:4
相关论文
共 38 条
[1]   The blue-light receptor cryptochrome 1 shows functional dependence on phytochrome A or phytochrome B in Arabidopsis thaliana [J].
Ahmad, M ;
Cashmore, AR .
PLANT JOURNAL, 1997, 11 (03) :421-427
[2]   The CRY1 blue light photoreceptor of Arabidopsis interacts with phytochrome A in vitro [J].
Ahmad, M ;
Jarillo, JA ;
Smirnova, O ;
Cashmore, AR .
MOLECULAR CELL, 1998, 1 (07) :939-948
[3]   Molecular interaction between COP1 and HY5 defines a regulatory switch for light control of Arabidopsis development [J].
Ang, LH ;
Chattopadhyay, S ;
Wei, N ;
Oyama, T ;
Okada, K ;
Batschauer, A ;
Deng, XW .
MOLECULAR CELL, 1998, 1 (02) :213-222
[4]   Stimulation of the blue light phototropic receptor NPH1 causes a transient increase in cytosolic Ca2+ [J].
Baum, G ;
Long, JC ;
Jenkins, GI ;
Trewavas, AJ .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1999, 96 (23) :13554-13559
[5]  
Casal JJ, 2000, PHOTOCHEM PHOTOBIOL, V71, P1, DOI 10.1562/0031-8655(2000)071&lt
[6]  
0001:PCPPII&gt
[7]  
2.0.CO
[8]  
2
[9]   Cryptochromes: Blue light receptors for plants and animals [J].
Cashmore, AR ;
Jarillo, JA ;
Wu, YJ ;
Liu, DM .
SCIENCE, 1999, 284 (5415) :760-765
[10]   Phytochrome degradation [J].
Clough, RC ;
Vierstra, RD .
PLANT CELL AND ENVIRONMENT, 1997, 20 (06) :713-721