Sánchez Thevenet Paula, Alvarez Hector Manuel, Basualdo Juan Angel
Facultad de Ciencias de la Salud, Facultad de Ciencias de la Salud, Universidad CEU Cardenal Herrera, Calle Grecia 31 (Ciudad del Transporte II), 12006, Castellón, España, Argentina.
Instituto de Biociencias de la Patagonia (INBIOP), Universidad Nacional de la Patagonia San Juan Bosco y CONICET, Km 4-Ciudad Universitaria 9000, Comodoro Rivadavia, Chubut, Argentina.
Exp Parasitol. 2017 Jun;177:47-56. doi: 10.1016/j.exppara.2017.04.009. Epub 2017 Apr 24.
Taenia hydatigena eggs were investigated for morphological and physiological changes under water stress conditions. Fresh eggs were exposed at 31%, 47% and 89% of relative humidity (RH), and survival, size and ultrastructural changes were accounted up to 365 days of exposition. The article shows how each RH environment affects the vitality of the eggs. Results of this study suggest that T. hydatigena eggs have mechanisms to withstand water stress, indicating that the eggs clustering improves protection against desiccation, and that endogenous metabolism using triacylglycerols play an important role in the maintenance of embryo vitality under low, medium and high relative humidity conditions. This contributes to understanding the water stress resistance mechanism in eggs belonging to Taeniidae family. The findings shown herein have provided a basis to better comprehend basic biology and epidemiology of the cysticercosis caused by T. hydatigena.
对泡状带绦虫卵在水分胁迫条件下的形态和生理变化进行了研究。将新鲜虫卵置于相对湿度（RH）为31%、47%和89%的环境中，记录长达365天暴露期内虫卵的存活情况、大小及超微结构变化。本文展示了每种相对湿度环境如何影响虫卵的活力。本研究结果表明，泡状带绦虫卵具有抵御水分胁迫的机制，这表明虫卵聚集可增强对干燥的保护作用，并且在低、中、高相对湿度条件下，利用三酰甘油的内源性代谢在维持胚胎活力方面发挥着重要作用。这有助于理解带绦虫科虫卵的水分胁迫抗性机制。本文所示的研究结果为更好地理解由泡状带绦虫引起的囊尾蚴病的基础生物学和流行病学提供了依据。
