Keywords Tachysoma pellionella;Euplotes encysticus;resting cyst;vegetative cell;macronucleus DNA;mitochondria DNA;isozyme;cyst wall protein;ATP;SOD;

• 膜状急纤虫;包囊游仆虫;休眠包囊;营养细胞;大核DNA;线粒体DNA;同工酶;包囊壁蛋白;ATP;SOD;