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RELATIONSHIP BETWEEN PHOTOSYNTHESIS AND CELL SIZE OF MARINE DIATOMS 1 2
Author(s) -
Taguchi Satoru
Publication year - 1976
Publication title -
journal of phycology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.85
H-Index - 127
eISSN - 1529-8817
pISSN - 0022-3646
DOI - 10.1111/j.1529-8817.1976.tb00499.x
Subject(s) - photosynthesis , biology , axenic , botany , algae , cell size , chlorophyll a , chlorophyll , saturation (graph theory) , light intensity , physics , optics , bacteria , paleontology , mathematics , combinatorics , microbiology and biotechnology
SUMMARY Three photosynthetic parameters of 7 species of marine diatoms were studied using Na 2 14 CO 3 at 5–8 C using log phase axenic cultures. The cell volumes of the different species varied from 70 μm 3 to 40 × 10 5 μm 3 . The present experiment is consistent with the interpretation that the initial slope α (mg C · [mg chl a] −1 · h −1 · w −1 · m 2 ) of photosynthesis vs. light curves is controlled by self‐shading of chlorophyll a in the cell. Pm, the rate of photosynthesis at light saturation (mg C · [mg cell, C] −1 · h −1 ) and R, the intercept at zero light intensity (mg C · [mg cell C] −1 · H −1 ) are both dependent on the ratio of surface area to volume of cell.