Lamsfus C, Jordana R, Ponz F
Rev Esp Fisiol. 1976 Sep;32(3):249-53.
The tortoise intestine capability for active transport of sugars has been studied in vitro at 30 degrees C, using labelled sugars. A release of glucose from the glycogen stores of the intestinal wall to the medium took place throughout the incubation period of the sacs. An active transport of 14C-D-glucose against a concentration gradient from the mucosal to the serosal compartment was evident, whereas no such activity could be detected for 14C-D-galactose. The tissue oxygen uptake was 36% higher with glucose than with galactose in the medium.
利用标记糖，在30摄氏度下对乌龟肠道主动转运糖的能力进行了体外研究。在囊泡的整个孵育期内，葡萄糖从肠壁的糖原储存中释放到培养基中。14C-D-葡萄糖能逆浓度梯度从黏膜侧主动转运至浆膜侧，而14C-D-半乳糖则未检测到这种活性。培养基中含葡萄糖时组织的氧摄取量比含半乳糖时高36%。
