Article
Plant Sciences
Yongtao Yu, Sergi Portoles, Yi Ren, Guangyu Sun, Xiao-Fang Wang, Huihui Zhang, Shaogui Guo
Summary: The F-box protein ZEITLUPE (ZTL) negatively regulates ABA signaling in Arabidopsis thaliana during early seedling growth and stomatal closure induced by ABA. ZTL interacts with and ubiquitinates its substrate CHLH/ABAR to modulate CHLH stability. ABA induces ZTL phosphorylation and CHLH degradation, suggesting a reciprocal regulation mechanism between ABA signaling and the circadian clock.
FRONTIERS IN PLANT SCIENCE
(2022)
Review
Cell Biology
Yousef Yari Kamrani, Aida Shomali, Sasan Aliniaeifard, Oksana Lastochkina, Moein Moosavi-Nezhad, Nima Hajinajaf, Urszula Talar
Summary: Plants have molecular, physiological, and anatomical adaptations to cope with long-term water-deficit exposure, which are controlled by circadian clocks. The circadian clock regulates plants' responses to water deficiency, including the opening and closing of stomata, through the modulation of ABA. However, the interrelationship between circadian clock, ABA homeostasis, and signaling and water-deficit responses is not fully understood. This review hypothesizes that the circadian clock directs plants to modulate their responses and feedback mechanisms to ensure survival and enhance fitness under drought conditions.
Article
Biochemistry & Molecular Biology
Zhichao Lu, Haiyang Liu, Yiming Kong, Lizhu Wen, Yang Zhao, Chuanen Zhou, Lu Han
Summary: The LHY gene plays a positive role in salt stress response by modulating the biosynthesis of flavonoids, thereby enhancing plant salt stress tolerance.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Plant Sciences
Mingxing Zhang, Ranran Zhao, Haitao Wang, Shule Ren, Liyuan Shi, Shuangzhan Huang, Zhiqi Wei, Boya Guo, Jiuyan Jin, Yu Zhong, Mojun Chen, Wenzhu Jiang, Tao Wu, Xinglin Du
Summary: OsWRKY28 enhances salinity tolerance in rice by directly binding to OsDREB1B promoter and increasing its transcriptional activity. It also negatively regulates abscisic acid mediated seedling establishment in rice.
PLANT CELL REPORTS
(2023)
Article
Biochemistry & Molecular Biology
Hua Wei, Xiling Wang, Yuqing He, Hang Xu, Lei Wang
Summary: In rice, OsPRR73 enhances salt tolerance by transcriptionally repressing OsHKT2;1 to reduce cellular Na+ accumulation. This study provides a new molecular link between clock components and salt stress tolerance in rice.
Article
Plant Sciences
Jinhui Zhao, Wei Zhang, Jaime A. Teixeira da Silva, Xuncheng Liu, Jun Duan
Summary: HDA704 enhances drought and salt tolerance in rice by regulating stomatal closure and density, as well as repressing the expression of DST and ABIL2 through histone deacetylation modification.
Article
Multidisciplinary Sciences
Peng Xu, Yingxin Zhang, Xiaoxia Wen, Qinqin Yang, Ling Liu, Shulei Hao, Jiaxin Li, Zhaozhong Wu, Liaqat Shah, Amir Sohail, Qunen Liu, Lianping Sun, Yongbo Hong, Daibo Chen, Xihong Shen, Xiaodeng Zhan, Shihua Cheng, Liyong Cao, Weixun Wu
Summary: This study confirms the role of OsLUX in regulating flowering time in rice and reveals its direct regulation of flowering-related genes through complex formation. The findings uncover the mechanism by which OsLUX regulates rice heading and provides potential genetic targets for crop improvement.
JOURNAL OF ADVANCED RESEARCH
(2023)
Article
Biochemistry & Molecular Biology
Marrit Putker, David C. S. Wong, Estere Seinkmane, Nina M. Rzechorzek, Aiwei Zeng, Nathaniel P. Hoyle, Johanna E. Chesham, Mathew D. Edwards, Kevin A. Feeney, Robin Fischer, Nicolai Peschel, Ko-Fan Chen, Michael Vanden Oever, Rachel S. Edgar, Christopher P. Selby, Aziz Sancar, John S. O'Neill
Summary: CRY proteins are considered essential components of the cellular clock mechanism, but studies show that circadian rhythms can still exist in the absence of CRY, albeit with variable expression and shorter periods. The classic circadian hallmarks like temperature compensation and period determination by specific activities are maintained even without CRY-mediated feedback repression. The sustained PER2 protein rhythms and circadian variation in protein stability suggest a post-translational core mechanism for biological clocks.
Article
Plant Sciences
Meng Xu, Hui Li, Zhen-Ning Liu, Xiao-Hua Wang, Ping Xu, Sheng-Jie Dai, Xue Cao, Xiao-Yu Cui
Summary: The study showed that GmCIPK2 positively regulates drought tolerance and ABA signaling in plants, enhancing plant adaptation to drought stress by affecting stomatal closure and the expression of drought-responsive genes. Additionally, it was demonstrated that GmCIPK2 physically interacts with a positive regulator of drought stress, GmCBL1, on the plasma membrane.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2021)
Article
Plant Sciences
Li Yuan, Grace Z. Xie, Siyuan Zhang, Baozhu Li, Xianglong Wang, Yu Li, Tao Liu, Xiaodong Xu
Summary: The study investigated the role of soybean circadian clock genes in leaf water stress response, finding that the quadruple mutant had decreased leaf water loss under dehydration stress. Dehydration treatment delayed the peak expression of GmLCL genes by 4 hr, and the circadian clock in hairy roots also responded to ABA, leading to a free-running rhythm with shortened period. The findings suggest that GmLCLs act as negative regulators of ABA signaling in leaves during dehydration response.
PLANT CELL AND ENVIRONMENT
(2021)
Article
Plant Sciences
Dain Seo, Jeonghyang Park, Jeeyoon Park, Geonhee Hwang, Pil Joon Seo, Eunkyoo Oh
Summary: Plants adapt to high temperature stress through a process called thermomorphogenesis, which is regulated by the circadian clock and involves the interaction of several proteins. The central clock component ZEITLUPE (ZTL) regulates thermoresponsive growth by modulating the activity and expression of PIF4 target genes. ZTL-mediated degradation of TOC1 and PRR5 enhances the sensitivity of hypocotyl growth to high temperatures.
PLANT CELL AND ENVIRONMENT
(2023)
Review
Biochemistry & Molecular Biology
Rajesh Narasimamurthy, David M. Virshup
Summary: In our modern society, the consequences of disrupting our circadian rhythms by skipping or delaying sleep are severe, leading to various disorders. The internal clock is regulated by the reversible phosphorylation of PERIOD proteins, controlled by isoforms of casein kinase 1 (CK1). Through biochemical, genetic, and structural studies, a better understanding of how the core clock is regulated has been achieved, opening new approaches for clock regulation.
Article
Biochemistry & Molecular Biology
Masakatsu Ueda, Jin Kono, Atsushi Sengiku, Yoshiyuki Nagumo, Bryan J. Mathis, Shigeki Shimba, Makoto Mark Taketo, Takashi Kobayashi, Osamu Ogawa, Hiromitsu Negoro
Summary: This study revealed that the core clock gene Bmal1 is involved in prostate growth by modulating the cell cycle, and its knockout affects the growth and cell division of prostate tissue.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Plant Sciences
Xiaocui Wang, Pengxu Ren, Lingxiao Ji, Bohua Zhu, Guosheng Xie
Summary: This study found that OsVDE negatively regulates ABA biosynthesis and salt stress tolerance in rice. Overexpression and gene-editing transgenic lines of OsVDE showed different phenotypes, with gene-editing lines being more sensitive to exogenous ABA and exhibiting higher ABA levels, stomatal closure percentage, and survival rate under salt stress. These results provide new evidence for the essential role of VDE in ABA biosynthesis and salt stress tolerance in plants.
Article
Plant Sciences
Swati Verma, Neelam Prabha Negi, Parul Narwal, Pratibha Kumari, Arun Vincent Kisku, Pallavi Gahlot, Nishu Mittal, Deepak Kumar
Summary: This review highlights the novel roles of calcium signaling in coordinating plant stem cell niche homeostasis for root and shoot development, as well as its regulatory networks with other plant signaling pathways. It also discusses the possible functions of calcium in plant growth responses, the plant circadian system, and abiotic/biotic stress responses.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2022)
Article
Plant Sciences
Xiling Wang, Yuqing He, Hua Wei, Lei Wang
Summary: This study identified a rice ternary repressive protein complex composed of OsELF4a, OsELF3-1, and OsLUX, which plays important roles in salt tolerance and heading in rice. Loss-of-function mutants of OsEC1 showed reduced survival rate under salt stress and late heading date. Transcriptomic profiling revealed that OsEC1 regulates salt tolerance and heading by repressing OsGI, a homologue of GIGANTEA.
PLANT CELL AND ENVIRONMENT
(2021)
Review
Biochemistry & Molecular Biology
Xiaodong Xu, Li Yuan, Xin Yang, Xiao Zhang, Lei Wang, Qiguang Xie
Summary: This review summarizes recent studies on the plant circadian system, including molecular mechanisms, internal and external time cues, and physiological regulation. The circadian clock in plants is highly sensitive to timing cues such as light, temperature, and nutrients, and it regulates independent rhythms in different tissues, affecting processes like growth and immune response.
JOURNAL OF INTEGRATIVE PLANT BIOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Yan Wang, Chen Su, Yingjun Yu, Yuqing He, Hua Wei, Na Li, Hong Li, Jie Duan, Bin Li, Jigang Li, Seth J. Davis, Lei Wang
Summary: This study reveals that the clock regulator TIC controls the activity of the far-red light photoreceptor phyA in Arabidopsis, enhancing the plant's fitness under natural conditions.
Article
Multidisciplinary Sciences
Yuqing He, Yingjun Yu, Xiling Wang, Yumei Qin, Chen Su, Lei Wang
Summary: Photoreceptor CRY2 interacts with clock core component PRR9 in a blue light dependent manner to mediate blue light input to the circadian clock. This physical interaction blocks the accessibility of PRR9 protein to its co-repressor TPL/TPRs and the resulting kinase PPKs. Our findings not only reveal a network mediating light input into the circadian clock, but also unmask a mechanism by which the Arabidopsis circadian clock senses light intensity.
NATURE COMMUNICATIONS
(2022)
Article
Plant Sciences
Yingjun Yu, Chen Su, Yuqing He, Lei Wang
Summary: The circadian clock is important for plant fitness and adaptation to diel environments. This study found that BBX28 and BBX29, two B-Box V subfamily members, regulate the Arabidopsis circadian clock. They interacted with core clock components and influenced their transcriptional activities, leading to fine-tuning of the circadian pace.
PLANT CELL AND ENVIRONMENT
(2023)
Review
Plant Sciences
Hang Xu, Xiling Wang, Jian Wei, Yi Zuo, Lei Wang
Summary: Global climatic change poses an increasing threat to plant adaptation and crop yields. The plant circadian clock plays a crucial role in synchronizing internal biological processes with external environmental cues, thereby benefiting plant adaptation and yield. This review focuses on the interaction between the plant circadian clock and environmental factors, summarizing recent progress on how the circadian clock affects crop yield. Additionally, potential strategies for utilizing circadian biology in crop production are proposed.
Review
Biology
Hang Xu, Jian Wei, Yi Zuo, Lei Wang
Summary: The circadian clock in plants plays a crucial role in plant growth, development, and response to environmental stress.
Article
Plant Sciences
James Ronald, Chen Su, Lei Wang, Seth J. Davis
Summary: This study reveals that the cellular and sub-nuclear localization of the protein ELF3 in Arabidopsis is responsive to red and blue light, with these wavelengths having competitive effects on its localization. The researchers also found that at least two red light pathways influence the cellular localization of ELF3. Furthermore, changes in the cellular localization of ELF3 are associated with the repression of target-gene expression in the evening complex.
Article
Biochemistry & Molecular Biology
Li Yuan, Yingjun Yu, Mingming Liu, Yang Song, Hongmin Li, Junqiu Sun, Qiao Wang, Qiguang Xie, Lei Wang, Xiaodong Xu
Summary: The study reveals that a subfamily of zinc finger transcription factors, BBX, plays a critical role in fine-tuning circadian rhythms by interacting with PRRs to coordinate synchrony and inhibit the expression of morning-phased clock genes.
Review
Biotechnology & Applied Microbiology
Chen Su, Yan Wang, Yingjun Yu, Yuqing He, Lei Wang
Summary: The circadian clock is an endogenous timekeeping system that regulates plant physiological functions to ensure optimal growth in response to changing environments. Light serves as a predominant time cue for synchronizing internal clock with external environmental information, and photoreceptors play a crucial role in detecting and transmitting light signals to sustain circadian rhythms and regulate downstream responses such as photomorphogenesis and photoperiodic flowering. This coordination between the circadian clock and light signals is essential for regulating the growth and development of various crop species.