Summary
Molybdenum (Mo), a group 6B element (applied in the form of sodium molybdate at a concentration of 0.0177 ppm), is required for N2- and NO −3 -mediated growth ofNostoc muscorum. The amount of growth of such Mo-containing culutures is significantly enhanced by the addition of 0.0125 ppm vanadium (V), an element belonging to group 5 of the periodic table (applied in the form of sodium vanadate). At concentrations above 0.0125 ppm V proves growth-inhibitory toN. muscorum cultured with or without Mo. Mo and/or V exert(s) no apparent stimulatory/inhibitory effect on NO −2 -mediated growth of the organism.
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Thanks are due to the CSIR complex, Govt. of India, New Delhi-110012, for appointing the author to the Scientists' Pool for undertaking research on the physiological and genetic controls of N2 fixation in blue-green algae, a part of which is presented in this literature.
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Vaishampayan, A. Mo-V interactions during N2- and NO −3 -metabolism in a N2-fixing blue-green algaNostoc muscorum. Experientia 39, 358–360 (1983). https://doi.org/10.1007/BF01963121
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DOI: https://doi.org/10.1007/BF01963121