The effect of DL-glutamic acid on the growth of Rhodospirillum rubrum

Add time:09/08/2019    Source:sciencedirect.com

1.1. Rhodospirillum rubrum failed to grow from small inocula in the presence of DL-glutamic acid although washed suspenesions of the organism metabolized both isomers.2.2. In the presence of high concentration of DL-glutamic acid the organism initially failed to divide although cells increased in length. This growth soon ceased and was only resumed after a lag following which the cells acquired a more normal morphology.3.3. The only cell constituent observed to be affected by growth on DL-glutamic acid is nucleic acid, and both ribonucleic and deoxyribonucleic acids of the organisms are reduced; the former being affected more than the latter.

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