1·During metamorphosis, the larval midgut epithelium degenerated and the pupal epithelial cells due to differentiation of larval regenerative cells replaced the larval epithelial cells.
在变态发育期间，中肠上皮经历了广泛的重组，由再生细胞重新形成的蛹上皮替代了幼虫上皮。
2·The preliminary physiological reaction studies showed that fraction 9 could reduce the content of protein in haemolymph and inhibited the activity of esterase in midgut significantly.
对试虫生理指标的影响主要表现在降低血淋巴蛋白质含量和抑制中肠酯酶活力。
3·The reduced binding of the toxin to the midgut acceptors.
中肠的吸附位点对毒素蛋白的亲和力下降。