Grigor'eva L A
Parazitologiia. 2006 Jul-Aug;40(4):363-70.
The changes of the midgut in the females of the tick species Ixodes persulcatus and I. ricinus during the second and third immunizing feeding on rabbits were studied by the histological technics. The alternation of one generation of the digestive cells of nymphal stage and two generations of the digestive cells of adult stage was observed. The generation of secretory cells is absent. The tick completes feeding and drop off when the last generation of the digestive cells is on the initial activity stages. The amount of the blood consumed is not enough for the rhythmical functioning of the midgut. The feeding of tick is broken on the second phase and full satiation does not take place. It is apparently an effect of the interruption of the blood entrance into the midgut cavity of feeding tick as a probable result of anti-ticks resistance of unnatural hosts.
采用组织学技术研究了全沟硬蜱和蓖麻硬蜱雌蜱在第二次和第三次兔免疫叮咬过程中中肠的变化。观察到若虫期消化细胞一代更替以及成虫期消化细胞两代更替。不存在分泌细胞的一代更替。当最后一代消化细胞处于初始活动阶段时，蜱完成取食并掉落。所消耗的血量不足以维持中肠的节律性运作。蜱的取食在第二阶段中断，无法达到完全饱食状态。这显然是由于非天然宿主的抗蜱抗性导致进入取食蜱中肠腔的血液入口中断所致。
