Cold-induced degradation of core clock proteins implements temperature compensation in the Arabidopsis circadian clock DOI Creative Commons
Akari E Maeda,

Hiromi Matsuo,

Tomoaki Muranaka

et al.

Science Advances, Journal Year: 2024, Volume and Issue: 10(39)

Published: Sept. 27, 2024

The period of circadian clocks is maintained at close to 24 hours over a broad range physiological temperatures due temperature compensation length. Here, we show that the quantitative control core clock proteins TIMING OF CAB EXPRESSION 1 [TOC1; also known as PSEUDO-RESPONSE REGULATOR (PRR1)] and PRR5 crucial for in Arabidopsis thaliana . prr5 toc1 double mutant has shortened higher temperatures, resulting weak compensation. Low ambient reduces amounts TOC1. In low-temperature conditions, TOC1 interact with LOV KELCH PROTEIN 2 (LKP2), component E3 ubiquitin ligase Skp, Cullin, F-box (SCF) complex. lkp2 mutations attenuate low temperature–induced decrease TOC1, mutants display longer only lower temperatures. Our findings reveal maintains its length despite fluctuations through temperature- LKP2 -dependent abundance.

Language: Английский

Light signaling in plants—a selective history DOI Creative Commons
Enamul Huq, Chentao Lin, Peter H. Quail

et al.

PLANT PHYSIOLOGY, Journal Year: 2024, Volume and Issue: 195(1), P. 213 - 231

Published: March 2, 2024

Abstract In addition to providing the radiant energy that drives photosynthesis, sunlight carries signals enable plants grow, develop and adapt optimally prevailing environment. Here we trace path of research has led our current understanding cellular molecular mechanisms underlying plant's capacity perceive transduce these into appropriate growth developmental responses. Because a fully comprehensive review was not possible, have restricted coverage phytochrome cryptochrome classes photosensory receptors, while recognizing phototropin UV also contribute importantly full scope light-signal monitoring by plant.

Language: Английский

Citations

16
The two action mechanisms of plant cryptochromes DOI Creative Commons
Xu Wang, Chentao Lin

Trends in Plant Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

Citations

2
The dual‐action mechanism of Arabidopsis cryptochromes DOI Creative Commons
Gaoping Qu, Bochen Jiang, Chentao Lin

et al.

Journal of Integrative Plant Biology, Journal Year: 2023, Volume and Issue: 66(5), P. 883 - 896

Published: Oct. 30, 2023

Photoreceptor cryptochromes (CRYs) mediate blue-light regulation of plant growth and development. It has been reported that Arabidopsis CRY1and CRY2 function by physically interacting with at least 84 proteins, including transcription factors or co-factors, chromatin regulators, splicing factors, messenger RNA methyltransferases, DNA repair E3 ubiquitin ligases, protein kinases so on. Of these 47 have to exhibit altered binding affinity CRYs in response blue light, 41 shown condensation CRY photobodies. The light-regulated composition complexes results changes gene expression developmental programs. In this mini-review, we analyzed recent studies the photoregulatory mechanisms proposed dual action, "Lock-and-Key" "Liquid-Liquid Phase Separation (LLPS)" mechanisms. action explain, partially, structural diversity CRY-interacting proteins functional photoreceptors.

Language: Английский

Citations

16
Methyltransferase ATMETTL5 writes m6A on 18S ribosomal RNA to regulate translation in Arabidopsis DOI Creative Commons
Peizhe Song, Enlin Tian, Zhihe Cai

et al.

New Phytologist, Journal Year: 2024, Volume and Issue: 244(2), P. 571 - 587

Published: Aug. 26, 2024

Aberrant RNA modifications can lead to dysregulated gene expression and impeded growth in plants. Ribosomal (rRNA) constitutes a substantial portion of total RNA, while the precise functions molecular mechanisms underlying rRNA plants remain largely elusive. Here, we elucidated exclusive occurrence canonical modification N

Language: Английский

Citations

6
Photoregulatory protein kinases fine-tune plant photomorphogenesis by directing a bifunctional phospho-code on HY5 in Arabidopsis DOI
Nan Zhang, Chuangqi Wei,

Da-Jin Xu

et al.

Developmental Cell, Journal Year: 2024, Volume and Issue: 59(13), P. 1737 - 1749.e7

Published: April 26, 2024

Language: Английский

Citations

5
Photosynthetic adaptation strategies in peppers under continuous lighting: insights into photosystem protection DOI Creative Commons
Jason Lanoue,

Sarah St. Louis,

C. Little

et al.

Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 15

Published: May 31, 2024

Energy efficient lighting strategies have received increased interest from controlled environment producers. Long photoperiods (up to 24 h - continuous (CL)) of lower light intensities could be used achieve the desired daily integral (DLI) with installed capacity/capital costs and low electricity in regions night prices. However, plants grown under CL tend higher carbohydrate reactive oxygen species (ROS) levels which may lead leaf chlorosis down-regulation photosynthesis. We hypothesize that use dynamic using a spectral change and/or intensity between day can negate CL-injury. In this experiment we set out assess impact on pepper by subjecting them white during up 150 µmol m

Language: Английский

Citations

5
The circadian clock of the bacterium B. subtilis evokes properties of complex, multicellular circadian systems DOI Creative Commons
Francesca Sartor, Xinming Xu, Tanja Popp

et al.

Science Advances, Journal Year: 2023, Volume and Issue: 9(31)

Published: Aug. 4, 2023

Circadian clocks are pervasive throughout nature, yet only recently has this adaptive regulatory program been described in nonphotosynthetic bacteria. Here, we describe an inherent complexity the Bacillus subtilis circadian clock. We find that B. entrains to blue and red light entrainment is separable from masking through fluence titration frequency demultiplication protocols. identify rhythmicity constant light, consistent with Aschoff’s rule, aftereffects, both of which properties for eukaryotic clocks. report rhythms occur wild isolates prokaryote, thus establishing them as a general property species, its system responds environment complex fashion multicellular systems.

Language: Английский

Citations

11
Plastid- and photoreceptor-dependent signaling is required for the response to photoperiod stress DOI Creative Commons

Ishita Bajaj Hengge,

Anne Cortleven, Thomas Schmülling

et al.

Journal of Plant Physiology, Journal Year: 2025, Volume and Issue: 306, P. 154429 - 154429

Published: Jan. 10, 2025

Prolongation of the light period causes photoperiod stress in plants. The response to includes induction a distinct set marker genes, reactive oxygen species (ROS), and hormones. In this study, impact intensity quality on was investigated. A threshold circa 50 μmol m-2 s-1 is necessary for inducing stress, indicating involvement chloroplasts. Lower symptoms retrograde signaling mutants (gun4, gun5) with constrained plastid function (glk1 glk2) corroborated role Genetic analysis revealed that photoreceptors phyB particularly CRY2 are important perceive stress. Overall, these results showed both plastid-dependent photoreceptor-dependent pathways involved sensing conditions causing governing it.

Language: Английский

Citations

0
PhenoGazer: A high-throughput phenotyping system to track plant stress responses using hyperspectral reflectance, nighttime chlorophyll fluorescence and RGB imaging in controlled environments DOI Creative Commons
Muhammad Adeel Hassan, C. Y. Chang

Plant Phenomics, Journal Year: 2025, Volume and Issue: unknown, P. 100047 - 100047

Published: April 1, 2025

Language: Английский

Citations

0
Complex Signaling Networks Underlying Blue-Light-Mediated Floral Transition in Plants DOI Creative Commons
Yun Kong, Youbin Zheng

Plants, Journal Year: 2025, Volume and Issue: 14(10), P. 1533 - 1533

Published: May 20, 2025

Blue light (BL) is important in regulating floral transition. In a controlled environment production system, BL can be manipulated easily and precisely aspects like peak wavelength, intensity, duration, co-action with other wavelengths. However, the results of previous studies about BL-mediated transition are inconsistent, which implies that an in-depth critical examination relevant physiological mechanisms necessary. This review consolidates recent findings on role mediating not only model plants, such as Arabidopsis thaliana, but also crops, especially horticultural crops. The photoreceptors, integrator proteins, signal pathways, key network components involved critically reviewed. provides possible explanations for contrasting flowering; it valuable information to explain develop manipulation strategies flowering, plants. identifies knowledge gaps outlines future directions research related fields.

Language: Английский

Citations

0