Photophosphorylation and Carbon Dioxide Fixation by Chloroplasts Isolated from Populus deltoides.
A system has been developed for the isolation of photosynthetically active chloroplasts from leaves of Populus deltoides. A high proportion of the chloroplasts appeared intact. The maximum rates of different photosynthetic processes were as follows: CO(2) fixation 3.5 micromoles per milligram chlorophyll per hour, noncyclic ATP synthesis 10 micromoles per milligram chlorophyll per hour, and cyclic ATP synthesis 300 micromoles per milligram chlorophyll per hour.
Hernández-Gil
R
R
Department of Forest Botany and Pathology, State University of New York College of Forestry, Syracuse, New York 13210.
Schaedle
M
M