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Effects of Anions on Swelling, Respiration, and Phosphorylation of Isolated Corn Mitochondria
Author(s) -
MILLER J. E.,
KOEPPE D. E.,
MILLER RAYMOND J.
Publication year - 1975
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1975.tb03811.x
Subject(s) - swelling , oxidative phosphorylation , respiration , mitochondrion , phosphorylation , chemistry , biochemistry , substrate (aquarium) , biophysics , biology , botany , materials science , ecology , composite material
The effects of a series of anions on swelling, respiration, and oxidative phosphorylation of corn mitochondria were studied. Active mitochondrial swelling similar to that found with HPO 4 −2 was demonstrated in the presence of IO 3 − , NO 2 − , MoO 4 −2 , SO 4 −2 , HAsO 4 −2 , acetate, S 2 O 3 −2 , SeO 4 −2 , CrO 4 −2 , and WoO 4 −2 . In general, those anions which caused active swelling also released respiration and reduced the efficiency of oxidative phosphorylation with exogenous NADH as substrate. The degree of passive swelling in the presence of certain of the monovalent anions was found to approximate the order of the lyotropic series (SCN − > CIO 4 − > I − > NO 3 − > CI − ).