Proton efflux from corn roots induced by tripropyltin

Journal Article · Thu Oct 01 04:00:00 EDT 1981 · Plant Physiol.; (United States)

DOI:https://doi.org/10.1104/pp.68.4.981· OSTI ID:5714854

Chastain, C J; Hanson, J B

Tripropyltin restores medium acidification by washed corn root tissue in which electrogenic H/sup +/ efflux has been blocked by ATPase inhibitors or injury. However, the restore H/sup +/ efflux is not electrogenic and will not drive K/sup +/ influx, and, by itself, tripropyltin is inhibitory to K/sup +/ influx. Tripropyltin elicits a 5-fold increase in endogenous chloride efflux, and Cl/sup -//OH/sup -/ exchange can, thus, account for the observed acidification of the medium. This explanation cannot be applied equally to the acidification produced by the K/sup +//H/sup +/ exchanging ionophore nigericin.

• Research Organization: Univ. of Illinois, Urbana
• DOE Contract Number: AC02-76EV00790
• OSTI ID: 5714854
• Journal Information: Plant Physiol.; (United States), Journal Name: Plant Physiol.; (United States) Vol. 68:4; ISSN PLPHA
• Country of Publication: United States
• Language: English

Related Subjects

550501* -- Metabolism-- Tracer Techniques
59 BASIC BIOLOGICAL SCIENCES
ACIDIFICATION
ALKALI METAL ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOCHEMICAL REACTION KINETICS
CEREALS
CHARGED PARTICLES
CHLORINE 36
CHLORINE IONS
CHLORINE ISOTOPES
DATA
DAYS LIVING RADIOISOTOPES
ELECTRON CAPTURE RADIOISOTOPES
ELECTROPHORESIS
EXPERIMENTAL DATA
GRAMINEAE
GRASS
HYDROGEN IONS
INFORMATION
INHIBITION
INTERMEDIATE MASS NUCLEI
IONS
ISOMERIC NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPE APPLICATIONS
ISOTOPES
KINETICS
LIGHT NUCLEI
MAIZE
MINUTES LIVING RADIOISOTOPES
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
PH VALUE
PLANTS
POTASSIUM IONS
RADIOISOTOPES
REACTION KINETICS
ROOTS
RUBIDIUM 86
RUBIDIUM ISOTOPES
TRACER TECHNIQUES
UPTAKE
YEARS LIVING RADIOISOTOPES