Abstract
CULLINMORE1 has recently reported that Prototheca zopfii (Cambridge Collection strain No. 263/5) will utilize butyrate as the sole carbon source for growth, but only after a lag period of 3 days. It is presumed that this represents a period of enzyme induction. We have been investigating some aspects of the nitrogen metabolism of this strain of Prototheca and have observed that while adenine can be used as the sole nitrogen source there is again a lag period before growth commences. In this case, however, the lag is only about 30 h. (Fig. 1). The increase in dry weight obtained suggests that ring nitrogen of the adenine molecule is utilized in addition to the amino group.
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STACEY, J., CASSELTON, P. Utilization of Adenine but not Nitrate as Nitrogen Source by Prototheca zopfii. Nature 211, 862 (1966). https://doi.org/10.1038/211862a0
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DOI: https://doi.org/10.1038/211862a0
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