Inhibition of photosynthesis in isolated spinach chloroplasts by inorganic phosphate or inorganic pyrophosphatase in the presence of pyrophosphate and magnesium ions.
Inhibition of photosynthesis in isolated spinach chloroplasts by Pi is decreased by the presence of PPi and increased with increasing Mg2+ concentration. Previously reported regulation of this photosynthesis by protein factors from spinach leaves appears to be due mostly to pyrophosphate phosphohydrolase (EC 3.6.1.1) activity which converts PPi to Pi and to the effects of PPi and Mg2+ on this pyrophosphatase activity.
Levine
G
G
Laboratory of Chemical Biodynamics, Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720, USA.
Bassham
J A
JA
D002245:Carbon Dioxide / Q000378:metabolism; D002736:Chloroplasts / Q000378:metabolism*; D011756:Diphosphates / Q000378:metabolism*; D043564:Inorganic Pyrophosphatase / Q000378:metabolism*; D008274:Magnesium / Q000737:chemistry / Q000378:metabolism*; D010710:Phosphates / Q000378:metabolism*; D010788:Photosynthesis / Q000502:physiology*; D010940:Plant Proteins / Q000378:metabolism; D018724:Spinacia oleracea / Q000166:cytology / Q000378:metabolism
D011756:Diphosphates; D010710:Phosphates; D010940:Plant Proteins; D002245:Carbon Dioxide; D043564:Inorganic Pyrophosphatase; D008274:Magnesium