期刊
JOURNAL OF INSECT PHYSIOLOGY
卷 57, 期 5, 页码 577-583出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jinsphys.2011.03.019
关键词
Anhydrobiosis; Tardigrada; Extreme tolerance; Trehalose; Heat shock proteins; DNA damage
资金
- German Federal Ministry of Education and Research, BMBF [0313838]
- German Academic Exchange Service (DAAD) [D/08/07725 PPP-PI-09-10 Frohme]
The current state of knowledge about anhydrobiosis in tardigrades is presented. In response to adverse environmental conditions tardigrades arrest their metabolic activity and after complete dehydration enter the so-called tun state. In this ametabolic state they are able to tolerate exposure to various chemical and physical extremes. These micrometazoans have evolved various kinds of morphological, physiological and molecular adaptations to reduce the effects of desiccation. In this review we address behavioral adaptation, morphological features and molecules which determine the anhydrobiotic survival. The influence of the time spent in anhydrobiotic state on the lifespan and DNA and the role of the antioxidant defense system are also considered. Finally we summarize recent input from the omics sciences. (C) 2011 Elsevier Ltd. All rights reserved.
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