Nagwani Amit Kumar, Melosik Iwona, Kaczmarek Łukasz, Kmita Hanna
Department of Bioenergetics, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University in Poznań, Poland.
Department of Genetics, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University in Poznań, Poland.
Heliyon. 2024 Feb 22;10(5):e26807. doi: 10.1016/j.heliyon.2024.e26807. eCollection 2024 Mar 15.
Desiccation-tolerant organisms can survive dehydration in a state of anhydrobiosis. Tardigrades can recover from anhydrobiosis at any life stage and are considered among the toughest animals on Earth. However, the factors that influence recovery from anhydrobiosis are not well understood. The study aimed to evaluate the effect of sex, age, the presence of other individuals and the combination of the number and duration of anhydrobiosis episodes on the recovery of . The activity of 1200 individuals for up to 48 h after rehydration was evaluated using analysis of variance (ANOVA). Age was the main factor influencing return to activity, followed by the combination of number and duration of anhydrobiosis episodes, influence of the presence of other individuals, and sex. More individuals returned to activity after repeated short than repeated long anhydrobiosis episodes and older individuals were less likely to recover than younger individuals. In addition, when compared to single animals, the presence of other individuals resulted in higher number of active animals after dehydration and rehydration. The effect of sex was significant, but there was no general tendency for one sex to recover from anhydrobiosis better than the other one. The results contribute to a better understanding of the anhydrobiosis ability of and provide background for full explanation of molecular, cellular and environmental mechanisms of anhydrobiosis.
耐干燥生物能够在脱水状态下以隐生状态存活。缓步动物在任何生命阶段都能从隐生状态中恢复过来，被认为是地球上最顽强的动物之一。然而，影响从隐生状态恢复的因素尚未得到充分了解。该研究旨在评估性别、年龄、其他个体的存在以及隐生事件的次数和持续时间的组合对[物种名称]恢复的影响。使用方差分析（ANOVA）评估了1200个个体在复水后长达48小时的活动情况。年龄是影响恢复活动的主要因素，其次是隐生事件的次数和持续时间的组合、其他个体存在的影响以及性别。与重复长时间隐生事件相比，重复短时间隐生事件后更多个体恢复了活动，并且老年个体比年轻个体恢复的可能性更小。此外，与单个动物相比，其他个体的存在导致脱水和复水后活跃动物的数量更多。性别的影响显著，但没有一种性别比另一种性别从隐生状态恢复得更好的普遍趋势。这些结果有助于更好地理解[物种名称]的隐生能力，并为全面解释隐生的分子、细胞和环境机制提供背景。
