Editorial Material
Plant Sciences
Nishat S. Islam
Summary: This article comments on the research done by Zhang et al. They identified ZmWRKY28 as a key regulatory element in the shade avoidance response (SAR) of maize, and explored its light-dependent pathway regulation. This discovery provides a potential new target for improving maize yield.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Plant Sciences
Jin Hu, Yinmeng Hu, Mengran Yang, Xiaotong Hu, Xuelu Wang
Summary: Ubiquitin-dependent protein degradation is important in plant development, with the SINA RING-type E3 ligases (SINATs) exhibiting light-dependent regulation. The study found that the degradation of SINATs is self-regulated, and they interact with photoreceptors phyB and CRY1 in the cytoplasm.
FRONTIERS IN PLANT SCIENCE
(2021)
Review
Plant Sciences
Jonathan H. C. Griffin, Gabriela Toledo-Ortiz
Summary: The red and blue plant photoreceptors play essential roles in promoting photomorphogenesis and chloroplast functions, and their intertwining with retrograde signals optimize chloroplast activities. They also have a convergence with dual-localized proteins in regulating photosynthetic activities in changing environments.
JOURNAL OF EXPERIMENTAL BOTANY
(2022)
Article
Plant Sciences
Eduardo Gonzalez-Grandio, Simon Alamos, Yu Zhang, Jutta Dalton-Roesler, Krishna K. Niyogi, Hernan G. Garcia, Peter H. Quail
Summary: This study identifies rapidly light-responsive genes and their relationship with chromatin modifications, suggesting that light-induced transcriptional and chromatin-remodeling processes may be mechanistically intertwined.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Chemistry, Physical
Dmitry Morozov, Vaibhav Modi, Vladimir Mironov, Gerrit Groenhof
Summary: Nonadiabatic molecular dynamics simulations were used to unravel the isomerization mechanism of bacteriophytochrome photoactivation. The simulations revealed a counterclockwise photoisomerization process accompanied by the breakage and reformation of hydrogen bonds.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Review
Biochemistry & Molecular Biology
Aba Losi, Wolfgang Gaertner
Summary: Bacteria and fungi in the plant microbiota play various roles in plants, with some establishing mutually advantageous relationships while others may act as phytopathogens. Many of these microorganisms are rich in photoreceptors that can regulate growth patterns, infectivity, and pigment production in response to light. Interestingly, some fungi exhibit different behaviors towards plants depending on light conditions, switching between symbiotic and pathogenic interactions.
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
(2021)
Article
Chemistry, Physical
David Buhrke
Summary: Cyanobacteriochromes (CBCRs) are photoreceptor proteins with potential for biotechnological applications, some of which can bind both phycocyanobilin (PCB) and biliverdin (BV). The assembly kinetics of CBCR AmI-g2 with both chromophores were studied, revealing that the assembly reaction with PCB is faster than with BV, where the formation of a non-covalent intermediate is the rate-limiting step. Photochemical quantum yields of forward and backward reactions of AmI-g2 were estimated and discussed in comparison with homologous CBCRs.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Review
Biochemistry & Molecular Biology
Sunita Sharma, Sibaji K. Sanyal, Kumari Sushmita, Manisha Chauhan, Amit Sharma, Gireesh Anirudhan, Sindhu K. Veetil, Suneel Kateriya
Summary: Plants utilize photoreceptors to respond to environmental changes, regulate growth, and cope with stress; the interaction between photoreceptors and plant hormones influences plant growth and reproduction; photo-biotechnological approaches based on artificial illumination impact the growth, yield, secondary metabolite production, and other characteristics of crops and algae.
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
Pharmacology & Pharmacy
Samuel H. Crossman, Harald Janovjak
Summary: Receptor tyrosine kinases (RTKs) are a crucial membrane receptor family that can be activated through various molecular mechanisms, resulting in diverse physiological consequences. The development of genetically-encoded light-activated RTKs (Opto-RTKs) has provided researchers with a valuable tool to study and manipulate RTK signaling and physiology with high precision and control, offering insights into subcellular, tissue, and animal models.
CURRENT OPINION IN PHARMACOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Islam M. Y. Abdellatif, Shaoze Yuan, Renhu Na, Shizue Yoshihara, Haruyasu Hamada, Takuya Suzaki, Hiroshi Ezura, Kenji Miura
Summary: Heat stress is a prevalent negative factor affecting plant growth and development. In this study, the response of tomato phyA and phyB1B2 mutants to high temperatures at different growth stages was investigated. The mutants showed tolerance to heat stress during the seed germination and vegetative growth stages, while their response during the flowering stage was dependent on the duration of heat exposure. The vegetative growth stage demonstrated the highest tolerance, with increased membrane stability and water preservation achieved through stomatal closure regulation. Additionally, both mutants upregulated heat-responsive genes and the phyA mutant showed enhanced proline levels and lower malondialdehyde accumulation.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Biochemistry & Molecular Biology
Di Chen, Mohan Lyu, Xiaoxia Kou, Jing Li, Zhixuan Yang, Lulu Gao, Yue Li, Liu-Min Fan, Hui Shi, Shangwei Zhong
Summary: Light and temperature signals in plants are sensed separately by the phyB receptor through conformational changes and phase separation, respectively.
Article
Plant Sciences
Paul Kusuma, Bruce Bugbee
Summary: The ratio of active phytochrome (Pfr) to total phytochrome (Pr + Pfr), known as phytochrome photo-equilibrium (PPE), is used to explain shade avoidance responses in plants. However, predictions based on PPE are less accurate when blue and green light variations are involved, compared to red and far-red light variations. Incorporating spectral distortion caused by pigment absorbance and photon scattering can improve the predictive value of PPE.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Biochemistry & Molecular Biology
Yan Zhao, Hui Shi, Ying Pan, Mohan Lyu, Zhixuan Yang, Xiaoxia Kou, Xing Wang Deng, Shangwei Zhong
Summary: A study found that Ca2+ signaling in photosynthetic plants controls the nuclear translocation of photoreceptor phyB during the transition from darkness to light. Red light stimulates cytosolic Ca2+ increases via phyB, which are sensed by Ca2+-binding protein kinases CPK6 and CPK12. Upon Ca2+ activation, CPK6/12 directly interact with and phosphorylate photo-activated phyB at Ser80/Ser106 to initiate phyB nuclear import. This research uncovers a biochemical regulatory loop in phyB phototransduction and provides a paradigm for connecting ubiquitous Ca2+ increases to specific responses in sensory stimulus processing.
Article
Plant Sciences
Yongtao Cui, Minhua Zhu, Jian Song, Honghuan Fan, Xiaozheng Xu, Jiayan Wu, Longbiao Guo, Jianjun Wang
Summary: Due to labor shortages or resource scarcity, direct seeding is the preferred method for rice cultivation. This study identified the genes involved in shade-avoidance syndrome by comparing two density of direct seeding (high and normal density). The results showed that high density direct seeding causes constitutive shade-avoidance syndrome, leading to early flowering and changes in plant architecture. Additionally, high density direct seeding downregulates the expression of chloroplast synthesis-related genes, causing senescence. These findings suggest that high density direct seeding can be utilized to breed density-tolerant rice varieties more easily and widely.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Chemistry, Physical
Francisco Velazquez Escobar, Christa Kneip, Norbert Michael, Thomas Hildebrandt, Neslihan Tavraz, Wolfgang Gaertner, Jon Hughes, Thomas Friedrich, Patrick Scheerer, Maria Andrea Mroginski, Peter Hildebrandt
JOURNAL OF PHYSICAL CHEMISTRY B
(2020)
Article
Biochemistry & Molecular Biology
Silvia Trogu, Anna Lena Ermert, Fabian Stahl, Fabien Nogue, Tanja Gans, Jon Hughes
Summary: This study utilized highly-efficient CRISPR-Cas9 procedures to mutate all seven phytochrome genes in the model bryophyte Physcomitrium patens, identifying phy5a as the main phytochrome responsible for inhibiting gravitropism in light. The CRISPR-Cas9 system proved to be a powerful tool for genome editing, with successful targeting of all seven PHY genes in a single transfection. This mutant collection is expected to be valuable for further studies of phytochrome function, and the methods used in this study may be applicable for revealing specific functions in other gene families.
PLANT MOLECULAR BIOLOGY
(2021)
Article
Plant Sciences
Soshichiro Nagano, Kaoling Guan, Sintayehu Manaye Shenkutie, Christian Feiler, Manfred Weiss, Anastasia Kraskov, David Buhrke, Peter Hildebrandt, Jon Hughes
