Ion Fluxes and Phytochrome Protons in Mung Bean Hypocotyl Segments | Zendy

Colin Brownlee | Zendy; Richard E. Kendrick | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Ion Fluxes and Phytochrome Protons in Mung Bean Hypocotyl Segments

Author(s) -

Colin Brownlee,

Richard E. Kendrick

Publication year - 1979

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.64.2.211

Subject(s) - hypocotyl , phytochrome , phaseolus , biophysics , biology , ion transporter , botany , microbiology and biotechnology , chemistry , biochemistry , membrane , red light

The active form of phytochrome (Pfr) decreased CI(-) uptake by subhypocotyl hook segments of Phaseolus aureus Roxb. and increased uptake by apical segments. Pfr had similar effects on Pi [(32)Pi] uptake. Modulations of Pi [(32)Pi] uptake were detectable 10 minutes following photoconversion. Pfr may modulate Pi influx across the plasmalemma. Pfr inhibited H(+) extrusion by subhook segments and enhanced extrusion by apical hook segments. No rapid effects on H(+) extrusion were found. Phytochrome may regulate a K(+) -H(+) exchange process. The differential responses of the two regions of the hypocotyl are discussed with respect to Pfr-mediated changes in growth and development.

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