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The development of nitrate reductase in Chlorella and its repression by ammonium

✍ Scribed by Morris, I. ;Syrett, P. J.

Publisher
Springer-Verlag
Year
1963
Weight
605 KB
Volume
47
Category
Article
ISSN
0003-9276

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✦ Synopsis

Chlorella vulgaris growing with ammonium nitrate as nitrogen source utilises nil of the ammonium-N before nitrate begins to be assimilated. We have attempted to analyse this phenomenon and have shown that the assimilation of ammonium in some way inhibits nitrate reduction (SYnETT and ~oRt~Is 1963). In this paper a second effect of ammonium is established and discussed, namely the repression, by ammonium, of the development of nitrate reductase activity.

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