Phytochrome A Regulates Red-Light Induction of Phototropic Enhancement in Arabidopsis | Zendy

Brian M. Parks | Zendy; Peter H. Quail | Zendy; Roger P. Hangarter | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Phytochrome A Regulates Red-Light Induction of Phototropic Enhancement in Arabidopsis

Author(s) -

Brian M. Parks,

Peter H. Quail,

Roger P. Hangarter

Publication year - 1996

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.110.1.155

Subject(s) - phytochrome , phototropism , phytochrome a , arabidopsis , arabidopsis thaliana , biology , mutant , microbiology and biotechnology , photomorphogenesis , far red , botany , blue light , red light , genetics , gene , physics , optics

Phytochrome A (phyA) and phytochrome B photoreceptors have distinct roles in the regulation of plant growth and development. Studies using specific photomorphogenic mutants and transgenic plants overexpressing phytochrome have supported an evolving picture in which phyA and phytochrome B are responsive to continuous far-red and red light, respectively. Photomorphogenic mutants of Arabidopsis thaliana that had been selected for their inability to respond to continuous irradiance conditions were tested for their ability to carry out red-light-induced enhancement of phototropism, which is an inductive phytochrome response. We conclude that phyA is the primary photoreceptor regulating this response and provide evidence suggesting that a common regulatory domain in the phyA polypeptide functions for both high-irradiance and inductive phytochrome responses.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research