Chrost R J
Acta Microbiol Pol. 1978;27(1):55-62.
The effect of different concentrations of nitrogen and phosphorus on extracellular release was investigated. Phosphorus induced the enhanced extracellular release of metabolites by Chlorella vulgaris. No influence of nitrogen on extracellular release was observed. In the initial stages of C. vulgaris culture the algae release was observed. In the initial stages of C. vulgaris culture the algae release compounds readily assimilated by the accompanying bacteria, hence the observed drop of percentage of extracellular release (PER) in culture medium caused by the bacteria. Both, the glycolic acid and the products of photoassimilation released to the environment in the first stages of cultivation were assimilated by the bacteria accompanying-algae at a similar rate. The ageing of C. vulgaris culture resulted in the accumulation of extracellularly released metabolites and increase of PER. These products were not assimilated by the bacteria present in the algal culture.
研究了不同浓度的氮和磷对细胞外释放的影响。磷诱导普通小球藻代谢产物的细胞外释放增强。未观察到氮对细胞外释放有影响。在普通小球藻培养的初始阶段观察到藻类释放。在普通小球藻培养的初始阶段，藻类释放出易于被伴随细菌同化的化合物，因此观察到培养基中细胞外释放百分比（PER）因细菌而下降。在培养的第一阶段释放到环境中的乙醇酸和光同化产物都以相似的速率被藻类伴随细菌同化。普通小球藻培养物的老化导致细胞外释放的代谢产物积累和PER增加。这些产物未被藻类培养物中存在的细菌同化。
