Results 51 to 60 of about 31,221 (236)

Temperature, light and nitrate sensing coordinate Arabidopsis seed dormancy cycling resulting in winter and summer annual phenotypes [PDF]

, 2013
Seeds use environmental cues to sense the seasons and their surroundings to initiate the plants life cycle. Dormancy cycling underlying this process is extensively described, but the molecular mechanism is largely unknown.
Clay, Heather A., Finch-Savage, William E., Footitt, Steven, Huang, Ziyue, Mead, A. (Andrew)   +4 more
core   +1 more source

Divergent Regulatory Effects of Jasmonic Acid on Tomato Lycopene Biosynthesis Under Light and Dark Conditions

Advanced Science, EarlyView.
This study reveals the mechanism by which jasmonic acid (JA) regulates lycopene synthesis under light and dark conditions. In light, JA activates SlMYC2, which suppresses SlPIF1a and promotes SlPSY1 expression. In darkness, JA induces the acetyltransferase SlNATA1, which acetylates the dark‐accumulated SlPIF1a, thereby repressing SlPSY1 expression ...
Jiayi Xu, Lingfeng He, Jialong Zhang, Hao Cui, Hongxin Li, Haijun Zhang, Jiaojiao Zhang, Lun Liu, Kunpeng Xu, Yang‐Dong Guo, Na Zhang   +10 more
wiley   +1 more source

Phytochrome-controlled level of growth substances in etiolated oat seedlings

Acta Societatis Botanicorum Poloniae, 2014
Irradiation with red light of coleoptiles and leaves of etiolated oat seedlings, causing photoconversion of phytochrome mainly into Pfr, leads to the release of free auxins and free gibberellins from conjugated forms.
Jan Kopcewicz, Kazimierz Madela
doaj   +1 more source

Role of Phytochromes in Red Light-Regulated Alternative Splicing in Arabidopsis thaliana: Impactful but Not Indispensable

Cells, 2023
Light is both the main source of energy and a key environmental signal for plants. It regulates not only gene expression but also the tightly related processes of splicing and alternative splicing (AS).
Daniel Alejandro Careno, Constanza Helena Assaf, Eline Dieuwerke Catharina Eggermont, Micaela Canelo, Pablo Diego Cerdán, Marcelo Javier Yanovsky   +5 more
doaj   +1 more source

Shining light on the function of NPH3/RPT2-like proteins in phototropin signalling [PDF]

, 2017
No abstract ...
Christie, John M., Suetsugu, Noriyuki, Sullivan, Stuart, Wada, Masamitsu   +3 more
core   +1 more source

Ecological Adaptation Mechanisms Underlying Successful Plant Reproduction

Advanced Science, EarlyView.
During floral induction, various environmental and endogenous signals converge to regulate the florigen protein, which is transported from leaves to the SAM to initiate flowering. Within the SAM, a complex network of receptor kinases and small peptides orchestrates floral development with high spatiotemporal precision.
Hang Zhao, Shenghui Huo, Yue Xing, Shuxin Zhang, Guilin Li, Yihui Liu, Chongyang Jin, Fuguang Li, Xiaoyang Ge   +8 more
wiley   +1 more source

QM/MM Benchmarking of Cyanobacteriochrome Slr1393g3 Absorption Spectra

Molecules, 2019
Cyanobacteriochromes are compact and spectrally diverse photoreceptor proteins that are promising candidates for biotechnological applications. Computational studies can contribute to an understanding at a molecular level of their wide spectral tuning ...
Christian Wiebeler, Igor Schapiro
doaj   +1 more source

Sensing and Filtering Environmental Fluctuations: The Case of Biomolecular Condensates in Plants

Advanced Science, EarlyView.
The diversity of plant condensates reflects constraints of sessile organisms to coordinate postembryonic development with environmental adaptation. This review examines how plants employ condensates to integrate temperature, light, redox, and nutrient signals.
Panagiotis N. Moschou, Dorothee Staiger
wiley   +1 more source

Two distinct light-induced reactions are needed to promote germination in spores of Ceratopteris richardii

Frontiers in Plant Science, 2023
Germination of Ceratopteris richardii spores is initiated by light and terminates 3-4 days later with the emergence of a rhizoid. Early studies documented that the photoreceptor for initiating this response is phytochrome.
Ashley E. Cannon, Tanya Sabharwal, Mari L. Salmi, Ganesh Kumar Chittari, Valli Annamalai, Lindsey Leggett, Hope Morris, Cameron Slife, Greg Clark, Stanley J. Roux   +9 more
doaj   +1 more source

Protein-based molecular contrast optical coherence tomography with phytochrome as the contrast agent [PDF]

, 2004
We report the use of phytochrome A (phyA), a plant protein that can reversibly switch between two states with different absorption maxima (at 660 and 730 nm), as a contrast agent for molecular contrast optical coherence tomography (MCOCT).
Choma, Michael A., Izatt, Joseph A., Lamb, Laura E., Simon, John D., Yang, Changhuei   +4 more
core   +1 more source