6/3/2023 0 Comments Dark Light by S.J. Davis![]() However, photobody function, composition, and biogenesis remain undefined since their discovery. PhyB photobodies regulate phytochrome-mediated signaling and physiological outputs. In response to red light, phytochromes convert to a biologically active form, translocating from the cytoplasm into the nucleus and further compartmentalizes into subnuclear compartments termed photobodies. In the model plant Arabidopsis thaliana, phytochrome B serves as a light and thermal sensor, mediating physiological processes such as seedling germination and establishment, hypocotyl growth, chlorophyll biogenesis, and flowering. Phytochromes are red-light photoreceptors that are highly conserved across kingdoms. ![]() ![]() Plants perceive light through various light-responsive proteins, termed photoreceptors. Light is a critical environmental stimulus for plants, serving as an energy source via photosynthesis and a signal for developmental programming. 2Division of Biology and Biomedical Sciences, Washington University in St.1Donald Danforth Plant Science Center, St. ![]()
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