Novel blue light receptors with an F-box: their direct control of the circadian clock and the flowering timing in Arabidopsis

Fujiwara, Shigeru

doi:10.5511/plantbiotechnology.25.123

Cited by 6 publications

(5 citation statements)

References 49 publications

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“…The abundance of ZTL-a clock protein-is controlled by the biological clock, and its expression depends on protease degradation. It is generally assumed that ZTL overexpression regulates the level of CO gene transcription and reduces the inhibition of phytochrome-interacting factors by phytochromes A/B, which leads to delayed flowering and promotes hypocotyl elongation [42,43]. These observations are consistent with the results of this study, in which transgenic CoZTL-overexpressing Arabidopsis plants showed delayed flowering under long-day conditions as well as light-dependent promotion of hypocotyl elongation.…”

Section: Discussionsupporting

confidence: 92%

Expression Analysis and Interaction Protein Screening of CoZTL in Camellia oleifera Abel

Ren

Liu

et al. 2023

Horticulturae

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Camellia oleifera Abel., which produces fruits of high comprehensive utilization value, is an important woody oil tree in China. ZEITLUPE (ZTL) is a blue light receptor and clock component protein that is involved in various physiological and biochemical processes. However, the expression pattern and function of C. oleifera ZTL (CoZTL) remain unclear. In this study, the coding sequence of the CoZTL gene was isolated and the protein function was explored using bioinformatics and expression analyses and heterologous expression techniques. The results showed that the CoZTL protein was highly conserved during evolution and was on the same branch of the evolutionary tree as the ZTL proteins from Ipomoea nil and Nicotiana attenuata. CoZTL was mainly expressed in the fruit shells and stems of C. oleifera, and its expression level fluctuated greatly during flower bud development. Transgenic CoZTL-overexpressing Arabidopsis plants showed delayed flowering under long-day conditions as well as light-dependent promotion of hypocotyl elongation. Furthermore, yeast two-hybrid library screening revealed that seven C. oleifera proteins (CoAAT, Coβ-GAL, CoLAT52-like, CoCAR4-like, CoAO, CoUQCC1, and CoADF 2) interacted with CoZTL. Our results indicate that CoZTL plays an important role in C. oleifera flowering and hypocotyl growth.

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Section: Discussionsupporting

confidence: 92%

Expression Analysis and Interaction Protein Screening of CoZTL in Camellia oleifera Abel

Ren

Liu

et al. 2023

Horticulturae

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“…Rather than playing a role in phototropism, they are involved in modulating circadian rhythms and flowering through posttranslational regulation (Fujiwara, 2008). These proteins are all F-box proteins that use the same unique LOV domain photochemistry now elucidated for the phototropins and many bacterial blue light receptors .…”

Section: Finally a Photoreceptor Protein For Phototropism: A Short Smentioning

confidence: 99%

Phototropism: Some History, Some Puzzles, and a Look Ahead

2014

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“…In higher plants, LOV proteins related to circadian rhythms are built entirely differently: in the ZTL/LKP2/FKF1 family, a single LOV domain is linked to an F-box and six Kelch repeats (75). These proteins mediate ubiquitin-dependent protein degradation, ultimately leading to photoperiodic expression/accumulation of proteins involved in circadian clock regulation and flowering onset (7,29,65). Among fungi, the best-known LOV-based circadian system is that from Neurospora crassa (Nc).…”

Section: Kinases and Circadian Regulators: From Lov Proteins To Cryptmentioning

confidence: 99%

The Evolution of Flavin-Binding Photoreceptors: An Ancient Chromophore Serving Trendy Blue-Light Sensors

Losi

Gärtner

2012

Annu. Rev. Plant Biol.

179

166

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Photoreceptor flavoproteins of the LOV, BLUF, and cryptochrome families are ubiquitous among the three domains of life and are configured as UVA/blue-light systems not only in plants-their original arena-but also in prokaryotes and microscopic algae. Here, we review these proteins' structure and function, their biological roles, and their evolution and impact in the living world, and underline their growing application in biotechnologies. We present novel developments such as the interplay of light and redox stimuli, emerging enzymatic and biological functions, lessons on evolution from picoalgae, metagenomics analysis, and optogenetics applications.

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Novel blue light receptors with an F-box: their direct control of the circadian clock and the flowering timing in Arabidopsis

Cited by 6 publications

References 49 publications

Expression Analysis and Interaction Protein Screening of CoZTL in Camellia oleifera Abel

Expression Analysis and Interaction Protein Screening of CoZTL in Camellia oleifera Abel

Phototropism: Some History, Some Puzzles, and a Look Ahead

The Evolution of Flavin-Binding Photoreceptors: An Ancient Chromophore Serving Trendy Blue-Light Sensors

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