Variation of photosynthesis in Elodea densa with pH and/or high CO2 concentrations

TitleVariation of photosynthesis in Elodea densa with pH and/or high CO2 concentrations
Publication TypeJournal Article
Year of Publication1979
AuthorsWeber JA, Tenhunen JD, Yocum CS, Gates DM
JournalPhotosynthetica
Volume13
Issue4
Pagination454-458
KeywordsPLANTS
Abstract

At high inorganic carbon concentration (5 to 20 mM), the photosynthetic response of Elodea densa (Planch.) Casp. to varying pH from 5 to 9 was characterized by a peak. The position of the peak shifted toward lower pH with decreasing inorganic carbon concentration. Experiments in which inorganic carbon concentration was varied at constant pH showed that the decreasing rate of photosynthesis at high concentrations was related to CO2 concentrations greater than 1 mM.