四川大学学报（自然科学版）2026，Vol.63Issue(2)：289-296,8.DOI:10.19907/j.0490-6756.250331
涡虫体表寄生壶形虫防治方法
Effective chemical of the ectoparasitic Urceolaria on planarians
摘要
Abstract
Planarians are excellent model organisms for studies of tissue regeneration.Urceolaria is a com-mon ciliate ectoparasite inhabiting the body surface of freshwater planarians and can severely impair host loco-motion,feeding,regeneration,and survival.To identify effective control strategies,parasite-infected Duge-sia constrictiva were used to evaluate the efficacy of sodium chloride(NaCl),glacial acetic acid(CH₃COOH),and disodium hydrogen phosphate(Na₂HPO4)for parasite removal.Median lethal concentration assays and clearance experiments demonstrated that treatments with 0.929～3.716 mmol/L CH₃COOH for 2 minutes completely eliminated Urceolaria with minimal adverse effects on the host.Planarians treated with CH₃COOH resumed feeding most rapidly(3～5 minutes).Although NaCl(96.32 mmol/L)and Na₂HPO4(60.43 mmol/L)effectively removed parasites,they caused stronger irritation and significantly delayed feed-ing recovery.These results demonstrate that CH₃COOH is an efficient and safe chemical agent for eliminat-ing ectoparasitic Urceolaria from planarians.When combined with preventive management measures,this method can effectively control the spread and harm of Urceolaria in laboratory cultures.关键词
壶形虫/寄生感染/狭囊三角涡虫/冰乙酸Key words
Urceolaria/parasitic infection/Dugesia constrictiva/CH3COOH分类
生物科学引用本文复制引用
郭义威,李超杰,金白洁,王静毅,刘德增,董自梅,陈广文..涡虫体表寄生壶形虫防治方法[J].四川大学学报（自然科学版）,2026,63(2):289-296,8.基金项目
国家自然科学基金(32470463,32270501) （32470463,32270501）
河南省重大公益项目(201300311700) （201300311700）
河南省自然科学基金(242300420495) （242300420495）
