上克拉马斯湖本地微生物群对氨基酸摄取的竞争性抑制作用。
Competitive inhibition for amino acid uptake by the indigenous microflora of Upper Klamath Lake.
作者信息
Burnison B K, Morita R Y
出版信息
Appl Microbiol. 1973 Jan;25(1):103-6. doi: 10.1128/am.25.1.103-106.1973.
Abstract
The uptake of a specific (14)C-amino acid by the heterotrophic microorganisms in the epilimnion of an eutrophic lake was influenced by the presence of other amino acids. The effect of unlabeled serine on (14)C-glycine uptake was shown to be caused by competitive inhibition, which changed the interpretation of the kinetic parameters, the turnover time, T(t), and the sum of a transport constant, (K(t) + (S(n)), and the natural substrate concentration. The maximum velocity of uptake, V(max), is unaffected by the competitive inhibition.
摘要
富营养化湖泊上层水中的异养微生物对特定（14）C-氨基酸的摄取受到其他氨基酸存在的影响。未标记的丝氨酸对（14）C-甘氨酸摄取的影响被证明是由竞争性抑制引起的，这改变了动力学参数、周转时间T（t）、转运常数之和（K（t）+（S（n））以及天然底物浓度的解释。摄取的最大速度V（max）不受竞争性抑制的影响。
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