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Competitive Inhibition for Amino Acid Uptake by the Indigenous Microflora of Upper Klamath Lake

机译:上克拉马斯湖土著微生物群落对氨基酸吸收的竞争性抑制

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The uptake of a specific 14C-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 14C-glycine uptake was shown to be caused by competitive inhibition, which changed the interpretation of the kinetic parameters, the turnover time, Tt, and the sum of a transport constant, (Kt + (Sn), and the natural substrate concentration. The maximum velocity of uptake, Vmax, is unaffected by the competitive inhibition.
机译:富营养化湖泊富营养化过程中异养微生物对特定14C-氨基酸的摄取受到其他氨基酸的存在的影响。结果表明,未标记的丝氨酸对14C-甘氨酸摄取的影响是由竞争性抑制引起的,竞争性抑制改变了动力学参数,周转时间Tt和运输常数总和(Kt +(Sn)和天然底物浓度最大吸收速度Vmax不受竞争抑制的影响。

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