Results 91 to 100 of about 19,101 (227)

Light Activation of the Phosphoinositide Cycle in Intrinsically Photosensitive Chicken Retinal Ganglion Cells [PDF]

, 2010
Purpose: In vertebrates, intrinsically photosensitive retinal ganglion cells (ipRGCs) acting as nonvisual photoreceptors transmit environmental illumination information to the brain, regulating diverse non–image-forming tasks.
Contin, Maria Ana, Giusto, Norma Maria, Guido, Mario Eduardo, Ilincheta, Monica Graciela, Salvador, Gabriela Alejandra, Verra, Daniela Mariana   +5 more
core   +1 more source

Fungal cryptochrome with DNA repair activity reveals an early stage in cryptochrome evolution [PDF]

Proceedings of the National Academy of Sciences, 2015
Significance Photolyases repair UV-B–induced DNA lesions. They form a large protein family together with cryptochrome photoreceptors (cryptochrome/photolyase family, CPF). A more recently discovered CPF subclade consists of DASH ( Drosophila , Arabidopsis , Synechocystis
Tagua, Víctor G., Pausch, Marcell, Eckel, Maike, Gutiérrez Pozo, Gabriel, Miralles Durán, Alejandro, Sanz, Catalina, Eslava, Arturo P., Pokorny, Richard, Corrochano Peláez, Luis María, Batschauer, Alfred   +9 more
openaire   +6 more sources

LsMAPK6 Phosphorylates the LsCO Protein to Enhance Its Stability and Transcriptional Activity, Promoting Floral Transition Upon High Temperatures in Lettuce

Plant Biotechnology Journal, EarlyView.
ABSTRACT High temperatures significantly accelerate the timing of floral transition, namely, bolting and flowering, in lettuce, which results in severe loss of marketable yield. Thus, understanding the genetic regulation of floral transition is of great interest to plant biologists and lettuce breeders.
Tingzhen Wang, Mingjia Liu, Yufeng Tian, Qingqing Tan, Jiaxuan Wang, Huifang Mu, Chaojie Liu, Huiyu Wang, Ning Liu, Yingyan Han, Jinghong Hao   +10 more
wiley   +1 more source

Cloning, Identification, and Light Response Analysis of Two Circadian Clock Genes Cryptochrome and Period in Boring Giant Clam Tridacna crocea

Progress in Fishery Sciences
The circadian clock is an intrinsic timing mechanism that has evolved in organisms to adapt to the Earth's periodic diurnal changes. Cryptochrome and Period genes are pivotal in regulating the circadian system.
Wenhong YANG, Yihan NAN, Meng LI, Chunsheng LIU, Yi YANG, Feng YU, Zhifeng GU   +6 more
doaj   +1 more source

Expression of the Arabidopsis Sigma Factor SIG5 Is Photoreceptor and Photosynthesis Controlled

Plants, 2014
Two collections of Arabidopsis GAL4 enhancer trap lines were screened for light-intensity dependent reporter gene activation. Line N9313 was isolated for its strong light-intensity regulation.
Marina Mellenthin, Ulrike Ellersiek, Anna Börger, Margarete Baier   +3 more
doaj   +1 more source

Cellular Metabolites Enhance the Light Sensitivity of Arabidopsis Cryptochrome through Alternate Electron Transfer Pathways [PDF]

, 2014
Cryptochromes are blue light receptors with multiple signaling roles in plants and animals. Plant cryptochrome (cry1 and cry2) biological activity has been linked to flavin photoreduction via an electron transport chain comprising three evolutionarily ...
Ahmad, Margaret, Batschauer, Alfred, Bittl, Robert, Engelhard, Christopher, Essen, Lars-Oliver, Moldt, Julia, Robles, David, Wang, Xuecong   +7 more
core   +4 more sources

The Role of Cryptochrome 2 in Flowering in Arabidopsis [PDF]

Plant Physiology, 2003
AbstractWe have investigated the genetic interactions between cry2 and the various flowering pathways in relation to the regulation of flowering by photoperiod and vernalization. For this, we combined three alleles of CRY2, the wild-type CRY2-Landsberg erecta (Ler), a cry2 loss-of-function null allele, and the gain-of-function CRY2-Cape Verde Islands ...
El-Assal, S.E.D., Alonso-Blanco, C., Peeters, A.J.M., Wagemaker, C., Weller, J.L., Koornneef, M.   +5 more
openaire   +6 more sources

The ZmCOP1s–ZmCOL3 Module Enhances Late Flowering, Grain Yield and Grain Quality in Maize

Plant Biotechnology Journal, EarlyView.
ABSTRACT Flowering time is a key determinant of yield and regional adaptation in crops and is largely controlled by light signalling. In this study, we identified two maize orthologs of Arabidopsis CONSTITUTIVE PHOTOMORPHOGENIC 1 (COP1), designated ZmCOP1a and ZmCOP1b, which activate light signalling and reduce plant height. Loss‐of‐function mutants of
Shuling Yang, Yanpei Zhang, Lianhua Cui, Weimin Zhan, Shizhan Chen, Yu Zhang, Haolei Han, Linhu Song, Longchao Du, Kangni Zhang, Huan Liu, Shaoci Wang, Yong Shi, Jihua Tang, Xiangguo Liu, Jianping Yang   +15 more
wiley   +1 more source

Circadian clocks and breast cancer [PDF]

, 2016
Circadian clocks respond to environmental time cues to coordinate 24-hour oscillations in almost every tissue of the body. In the breast, circadian clocks regulate the rhythmic expression of numerous genes.
Blakeman, V, Meng, Q-J, Streuli, CH, Williams, JL   +3 more
core   +2 more sources

Structure Function Analysis of Mammalian Cryptochromes [PDF]

Cold Spring Harbor Symposia on Quantitative Biology, 2007
Members of the photolyase/cryptochrome family are flavoproteins that share an extraordinary conserved core structure (photolyase homology region, PHR), but the presence of a carboxy-terminal extension is limited to the cryptochromes. Photolyases are DNA-repair enzymes that remove UV-light-induced lesions.
Tamanini, Filippo, Chaves, I, Bajek, Monika, van der Horst, Bert   +3 more
openaire   +2 more sources