[磷酸盐和葡萄糖对短密青霉生长动力学及磷酸水解酶活性的影响]
[Effect of phosphate and glucose on the growth kinetics and phsophohydrolase activity of Penicillium brevi-compactum].
作者信息
Ezhov V A
出版信息
Mikrobiologiia. 1978 Nov-Dec;47(6):997-1003.
The kinetics of growth of Penicillium brevi-compactum and the activity of exocellular phosphohydrolases were studied on media with different concentrations of glucose and phosphate. Exocellular phosphohydrolases were synthesized when the growth was decelerated due to the deficiency of phosphate rather than that of glucose. These enzymes were not synthesized if the growth was not limited by phosphate. Synthesis of exocellular phosphohydrolases was repressed by phosphate when the growth was limited by glucose. Apparently, a complex of exocellular phosphohydrolases is synthesized by the culture if its growth is limited by phosphate.
研究了短密青霉在不同葡萄糖和磷酸盐浓度培养基上的生长动力学以及胞外磷酸水解酶的活性。当生长因磷酸盐而非葡萄糖缺乏而减速时，会合成胞外磷酸水解酶。如果生长不受磷酸盐限制，则不会合成这些酶。当生长受葡萄糖限制时，磷酸盐会抑制胞外磷酸水解酶的合成。显然，如果培养物的生长受磷酸盐限制，其会合成胞外磷酸水解酶复合物。
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