Summary
In order to examine the inhibitory effect of heterotrophic nutrition on the regreening of etiolatedEuglena gracilis, strain Z, the organisms were cultivated in the light in the presence of glucose or carbon dioxide as carbon source. After about 120 hours of illumination the chlorophyll and carbohydrate contents per cell of the photoheterotrophically cultivatedEuglena differs significantly from that of autotrophically grown cells. Mainly in so far as the addition of glucose diminishes the number and size of the chloroplasts per cell and the amount of the chlorophyll-protein-complex CP II in the thylakoids, whereas the amount of the chlorophyll-protein-complex CP I is not influenced.
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Koll, M., Brandt, P. & Wiessner, W. Hemmung der lichtabhängigen Chloroplastenentwicklung etiolierterEuglena gracilis durch Glucose. Protoplasma 105, 121–128 (1980). https://doi.org/10.1007/BF01279854
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DOI: https://doi.org/10.1007/BF01279854