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Acid Phosphatase in Dictyostelium discoideum
Author(s) -
Gezelius Kerstin
Publication year - 1966
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.1399-3054.1966.tb07085.x
Subject(s) - dictyostelium discoideum , in vivo , biochemistry , acid phosphatase , enzyme , phosphate , phosphatase , hydrolysis , hexose , chemistry , in vitro , alkaline phosphatase , biology , microbiology and biotechnology , gene
An acid phosphatase has been studied at various stages of development of Dictyostelium discoideum . This enzyme has a pH optimum of 3.6 and catalyses the hydrolysis of both hexose phosphates and mononucleotides as well as that of p ‐nitrophenyl phosphate. The enzyme specific activity increases 2–4 fold in vitro during differentiation, but the activity in vivo may be controlled through endproduct inhibition by orthophosphate, which accumulates in the cells during sorocarp formation. The predicted activity in vivo is highest in the middle of development, especially at the pre‐culmination stage.