Phy Tunes: Phosphorylation Status and Phytochrome-Mediated Signaling
نویسندگان
چکیده
منابع مشابه
Phy Tunes: Phosphorylation Status and Phytochrome-Mediated Signaling
Phytochromes are photoreceptors that regulate various aspects of plant growth and development. In this issue of Cell, Ryu et al. (2005) show that PAPP5, a type 5 protein phosphatase, acts on a biologically active phytochrome, increasing its stability and affinity for a downstream signal transducer and thus enhancing plant photoresponses.
متن کاملPhytochrome Signaling Is Mediated by PHYTOCHROME INTERACTING FACTOR in the Liverwort Marchantia polymorpha.
Phytochromes are red light (R) and far-red light (FR) receptors that play important roles in many aspects of plant growth and development. Phytochromes mainly function in the nucleus and regulate sets of genes by inhibiting negatively acting basic helix-loop-helix transcription factors named PHYTOCHROME INTERACTING FACTORs (PIFs) in Arabidopsis thaliana Although R/FR photoreversible responses a...
متن کاملPhytochrome structure and signaling mechanisms.
Phytochromes are a widespread family of red/far-red responsive photoreceptors first discovered in plants, where they constitute one of the three main classes of photomorphogenesis regulators. All phytochromes utilize covalently attached bilin chromophores that enable photoconversion between red-absorbing (P(r)) and far-red-absorbing (P(fr)) forms. Phytochromes are thus photoswitchable photosens...
متن کاملPhosphorylation and dark reversion of phytochrome B.
Phytochrome B (phyB) is the main light receptor responsible for the shade avoidance response in mature plants. Like other phytochromes (phys), it alternates between the Pfr form and the Pr form. Upon activation by red light (causing the switch to the Pfr conformation), phys interact with various signaling partners and translocate from the cytoplasm to the nucleus, where they are found in struct...
متن کاملPhytochrome signaling mechanism.
As sessile organisms, plants are unable to move actively towards favorable or away from unfavorable environmental conditions. Therefore, through their evolution, plants have adapted a high degree of developmental plasticity to optimize their growth and reproduction in response to their ambient environments. Light is one of the major environmental signals that influence plant growth and developm...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Cell
سال: 2005
ISSN: 0092-8674
DOI: 10.1016/j.cell.2005.01.023