Salt and water balance in the oligohaline clam, Rangia cuneata II. Accumulation of intracellular free amino acids during high salinity adaptation
Salt and water balance in the oligohaline clam, Rangia cuneata II. Accumulation of intracellular free amino acids during high salinity adaptation
复制标题
寡卤蛤 (Rangia cuneata II) 中的盐和水平衡。
DOI：
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发表时间：
1980
期刊：
影响因子：
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通讯作者：
K. L. Webb
中科院分区：
文献类型：
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作者：
R. Henry;C. Mangum;K. L. Webb
在适应环境盐度增加（2-20 ppt）的过程中，河口蛤Rangia cuneata将闭壳肌纤维中的游离氨基酸池扩大了5倍以上（>300 μM/gm干重）。该过程可以在厌氧条件下发生，但氧气对高盐度调整期间的生存至关重要。有人建议，池可能会扩大从头合成，通过糖酵解的修改形式，可能涉及丙酮酸的直接胺化形成丙氨酸利用游离氨。
During adaptation to an increase in ambient salinity (2–20 ppt) the estuarine clam Rangia cuneata enlarges the pool of free amino acids in adductor muscle fibers by more than five-fold (>300 μM/gm dry wt). The process can occur under anaerobic conditions, but oxygen is critical to survival during high salinity adjustment. It is suggested that the pool may be enlarged by de novo synthesis, via a modified form of glycolysis perhaps involving the direct amination of pyruvate to form alanineutilizing free ammonia.