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Specific transport of inorganic phosphate, glucose 6‐phosphate, dihydroxyacetone phosphate and 3‐phosphoglycerate into amyloplasts from pea roots
Author(s) -
Borchert S.,
Große H.,
Heldt H.W.
Publication year - 1989
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/0014-5793(89)80955-x
Subject(s) - dihydroxyacetone phosphate , amyloplast , phosphate , biochemistry , pyrophosphate , chemistry , chloroplast , enzyme , plastid , gene
Evidence is provided that amyloplasts from pea roots contain a translocator which transports, in a counter exchange mode, phosphate, glucose 6‐phosphate, dihydroxyacetone phosphate and 3‐phosphoglycerate. The translocator has a low affinity for 2‐phosphoglycerate and glucose 1‐phosphate. Metabolite transport was measured by silicone oil filtering centrifugation either directly by uptake of radioactive labelled compounds or indirectly by back exchange.