Results 81 to 90 of about 19,473 (219)
Immunocytochemical Localization of Phytochrome [PDF]
Proceedings of the National Academy of Sciences, 1971 An immunocytochemical assay, which localizes phytochrome in situ , indicates that this plant chromoprotein is associated with both nuclei and plastids, in addition to the cytoplasm. In an etiolated oat shoot, phytochrome is most abundant just behind the apex of the coleoptile, where it is ...
L H, Pratt, R A, Coleman
openaire +2 more sources
Regulation of Phytochrome Gene Expression [PDF]
, 1991 In etiolated oat seedlings exposure to red light results in a decrease in the transcription of the phytochrome genes, the abundance of phytochrome mRNA, and the level of phytochrome protein. Phytochrome itself serves as the photoreceptor for the response
Avissar, P. +3 more
core +1 more source
Plant Direct, 2020 The constitutively active missense allele of Arabidopsis phytochrome B, AtPHYBY276H or AtYHB, encodes a polypeptide that adopts a light‐insensitive, physiologically active conformation capable of sustaining photomorphogenesis in darkness.
Wei Hu +3 more
doaj +1 more source
Modern Agriculture, Volume 4, Issue 2, December 2026.Consoli et al. mapped eight Chl f‐binding sites in far‐red‐light‐acclimated photosystem I (FR PSI). Structural and spectroscopic evidence supports the involvement of Chl f at the A−1B site in primary charge separation and indicates that its protein microenvironment modulates redox properties.
Yufan Fu +3 more
wiley +1 more source
Phytochrome Immunoaffinity Purification [PDF]
Plant Physiology, 1979 We have developed a phytochrome immunoaffinity purification procedure that yields undegraded oat (Avena sativa L., cv. Garry) phytochrome of greater than 98% purity within 2 hours when starting with a brushite-purified preparation. Immunoaffinity-purified phytochrome, except for its greater purity, is indistinguishable from conventionally purified ...
R E, Hunt, L H, Pratt
openaire +2 more sources
Frontiers in Plant Science, 2016 Plant seedlings germinating under the soil are challenged by rough soil grains that can induce physical damage and sudden exposure to light, which can induce photobleaching.
Jinkil Jeong +9 more
doaj +1 more source
Annals of Applied Biology, Volume 189, Issue 3, November 2026.Cultivating soybean in a controlled environment enables precise control of growth conditions to accelerate breeding and enhance desirable traits. This study tested four LED spectra on two soybean varieties (CZ 75 70LL and S16‐14801C). The 40B:40R:20FR spectrum increased seed number by over 10% and seed weight by 20%, while both 50B:50R and 40B:40R:20FR
Cristiane J. Da‐Silva +3 more
wiley +1 more source
Partial Proteolysis of Rice Phytochrome: Comparison with Oat Phytochrome
Zeitschrift für Naturforschung C, 1989 Phytochrome was isolated from etiolated rice seedlings (Oryza sativa L.) by slight modification of the procedure for oat phytochrome. Spectral data of rice phytochrome are comparable with those of oat and rye phytochrome. Controlled proteolysis with endoproteinases Lys-C and Glu-C yielded defined fragments some of which were different for Pr and Pfr ...
R, Schendel, Z, Tong, W, Rüdiger
openaire +2 more sources
Basic Phytochrome B Calculations
, 2019 Mathematical models are important tools in helping us to understand complex biological systems. Models of phytochrome-regulated systems in Arabidopsis thaliana have shown the importance of dimerization, nuclear transport, and thermal/dark reversion in ...
Fleck, Christian +3 more
core +1 more source
Brazilian Archives of Biology and Technology, 2007 The effect of light and temperature on seed germination in Hylocereus setaceus was analyzed by isothermic incubations under continuous white light and darkness.
Edson Simão +2 more
doaj +1 more source