Kruse P, Steinhagen D, Körting W
Fish Disease Research Unit, School of Veterinary Medicine, Hannover, Federal Republic of Germany.
J Parasitol. 1989 Aug;75(4):527-30.
The development of Trypanoplasma borreli in the crop of the leech vector Piscicola geometra was characterized by significant changes in morphology. Immediately after ingestion by the leech, stumpy-shaped T. borreli predominated and numerous dividing specimens were found. This led to long and slender trypanoplasms near the end of the infection. The infection was terminated with complete digestion of the blood stored in the crop of the leech. The longest period of infection observed was 11 days. Trypanoplasma borreli was found only in the crop of the leech. At any time during the infection, T. borreli isolated from P. geometra cause a parasitemia when inoculated into parasite-free carp. There was no difference in morphology or infectivity among T. borreli isolated from various crop regions of P. geometra.
博氏锥虫在水蛭媒介几何锥蛭的嗉囊中发育的特点是形态发生显著变化。水蛭摄食后，短粗形的博氏锥虫占主导，发现了许多正在分裂的标本。这导致在感染末期出现长而细的锥虫。随着水蛭嗉囊中储存的血液被完全消化，感染终止。观察到的最长感染期为11天。博氏锥虫仅在水蛭的嗉囊中发现。在感染期间的任何时候，从几何锥蛭分离出的博氏锥虫接种到无寄生虫的鲤鱼体内时都会引起寄生虫血症。从几何锥蛭不同嗉囊区域分离出的博氏锥虫在形态或感染性上没有差异。
