Higher plants use LOV to perceive blue light

被引:167
作者
Demarsy, Emilie [1 ]
Fankhauser, Christian [1 ]
机构
[1] Univ Lausanne, Ctr Integrat Genom, CH-1015 Lausanne, Switzerland
关键词
TARGETED DEGRADATION; ARABIDOPSIS-THALIANA; STRUCTURAL BASIS; CIRCADIAN CLOCK; VOLTAGE DOMAINS; PHOTOTROPIN; PROTEIN; PHOSPHORYLATION; KINASE; AUXIN;
D O I
10.1016/j.pbi.2008.09.002
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Higher plants use several classes of blue light receptors to modulate a wide variety of physiological responses. Among them, both the phototropins and members of the Zeitlupe (ZTL) family use light oxygen voltage (LOV) photosensory domains. In Arabidopsis, these families comprise phot1, phot2 and ZTL, LOV Kelch Protein 2 (LKP2), and Flavin-binding Kelch F-box1 (FKF1). It has now been convincingly shown that blue-light-induced autophosphorylation of the phot1 kinase domain is an essential step in signal transduction. Recent experiments also shed light on the partially distinct photosensory specificities of phot1 and phot2. Phototropin signaling branches rapidly following photoreceptor activation to mediate distinct responses such as chloroplast movements or phototropism. Light activation of the LOV domain in ZTL family members modulates their capacity to interact with GIGANTEA (GI) and their ubiquitin E3 ligase activity. A complex between GI and FKF1 is required to trigger the degradation of a repressor of CO (CONSTANS) expression and thus modulates flowering time. In contrast, light-regulated complex formation between ZTL and G1 appears to limit the capacity of ZTL to degrade its targets, which are part of the circadian oscillator.
引用
收藏
页码:69 / 74
页数:6
相关论文
共 53 条
[1]   Molecular basis of the functional specificities of phototropin 1 and 2 [J].
Aihara, Yusuke ;
Tabata, Ryohei ;
Suzuki, Tomomi ;
Shimazaki, Ken-ichiro ;
Nagatani, Akira .
PLANT JOURNAL, 2008, 56 (03) :364-375
[2]   The LOV domain: a chromophore module servicing multiple photoreceptors [J].
Briggs, Winslow R. .
JOURNAL OF BIOMEDICAL SCIENCE, 2007, 14 (04) :499-504
[3]   An inositol polyphosphate 5-phosphatase functions in PHOTOTROPIN1 signaling in Arabidopis by altering cytosolic Ca2+ [J].
Chen, Xu ;
Lin, Wen-Hui ;
Wang, Yuan ;
Luan, Sheng ;
Xue, Hong-Wei .
PLANT CELL, 2008, 20 (02) :353-366
[4]   Functional conservation of light, oxygen, or voltage domains in light sensing [J].
Cheng, P ;
He, QY ;
Yang, YH ;
Wang, LX ;
Liu, Y .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2003, 100 (10) :5938-5943
[5]   NPY1 a BTB-NPH3-like protein, plays a critical role in auxin-regulated organogenesis in Arabidopsis [J].
Cheng, Youfa ;
Qin, Genji ;
Dai, Xinhua ;
Zhao, Yunde .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2007, 104 (47) :18825-18829
[6]   Physiological roles of the light, oxygen, or voltage domains of phototropin 1 and phototropin 2 in Arabidopsis [J].
Cho, Hae-Young ;
Tseng, Tong-Seung ;
Kaiserli, Eirini ;
Sullivan, Stuart ;
Christie, John M. ;
Briggs, Winslow R. .
PLANT PHYSIOLOGY, 2007, 143 (01) :517-529
[7]   Phototropin blue-light receptors [J].
Christie, John M. .
ANNUAL REVIEW OF PLANT BIOLOGY, 2007, 58 :21-45
[8]   A gradient of auxin and auxin-dependent transcription precedes tropic growth responses [J].
Esmon, CA ;
Tinsley, AG ;
Ljung, K ;
Sandberg, G ;
Hearne, LB ;
Liscum, E .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2006, 103 (01) :236-241
[9]   Primary inhibition of hypocotyl growth and phototropism depend differently on phototropin-mediated increases in cytoplasmic calcium induced by blue light [J].
Folta, KM ;
Lieg, EJ ;
Durham, T ;
Spalding, EP .
PLANT PHYSIOLOGY, 2003, 133 (04) :1464-1470
[10]   Post-translational regulation of the Arabidopsis circadian clock through selective proteolysis and phosphorylation of pseudo-response regulator proteins [J].
Fujiwara, Sumire ;
Wang, Lei ;
Han, Linqu ;
Suh, Sung-Suk ;
Salome, Patrice A. ;
McClung, C. Robertson ;
Somers, David E. .
JOURNAL OF BIOLOGICAL CHEMISTRY, 2008, 283 (34) :23073-23083