The effect of anaerobic (N 2 -1-C02) pre-incubation in the dark on photosynthetic reactions (02 evolution, measured manometrically and with the oxygraph; fluorescence; and photoproduction of H 2, measured with the mass spectrometer) was studied in algae with hydrogenase (strains of Chlorella ]usca,
Effect of manganese deficiency on growth and chlorophyll content of algae with and without hydrogenase
β Scribed by Kessler, Erich
- Publisher
- Springer-Verlag
- Year
- 1968
- Weight
- 189 KB
- Volume
- 63
- Category
- Article
- ISSN
- 0003-9276
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β¦ Synopsis
Chlorella vulgaris and Chl. saccharophila, become rapidly ehlorotie under manganese-deficier~t conditions, in agreement with the reaction of higher plants. By contrast, the chlorophyll of algae which contain hydrogenase, i.e., Chlorella /usca ( ~ pyrenOidosa), Chl. vulgaris f. tertia (= Chl. III), Ankistrodesmus braunii, and Scenede~mus obliquus, is much more stable in the absence of manganese.
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In the presence of vanadium, growth of Scenedesmus obliquus and Chlorella pyrenoidosa was increased five to sixfold as determined by dry weight, when cultured under autotrophic conditions for 7 days. The stimulation by vanadium decreased with increasing stability towards hydrolysis of the iron(III)-