ニジマス小腸におけるL-リジンの吸収〔英文〕

概要

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Everted intestinal sacs were made from rainbow trout, Salmo gairdneri, and were used to investigate the intestinal transport of L-lysine-14C, in vitro. With incubatio for 2h at 37±1°C, L-Lysine was transported across the mid and posterior intestine. The uptake ratio of the mid intestine varied from 6.68% to 26.64% during the incubation period. Similarly, the ratio of the posterior segment also increased from 1.62% to 23.24%. The presence of 10mM glucose reduced the uptake of L-Lysine from 26.64% to 12.34% in the mid intestine and from 23.24% to 5.40% in the posterior one. 1mM ATP increased the uptake ratio of L-lysine from 26.64% to 41.72% in the mid intestine and from 23.24% to 32.92% in the posterior one. L-lysine transport by the fish intestine was stimulated by 1mM ATP but inhibited by 10mM glucose. The intestine of the rainbow trout extubited nearly the same transport activity for L-lysine between the two intestinal segments for 20mM glucose and 1mM ATP.
日本水産學會の論文