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缓步动物休眠现象研究进展 被引量:5

Overview on Dormancy of Tardigrada
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摘要 本文对缓步动物休眠现象的研究历史和现状作了简要的回顾和总结。休眠现象是一个集合名词,指的是缓步动物为克服不利的环境条件而出现的新陈代谢活动减弱甚至暂停的生命状态。最新的观点将其划分为两类,即隐生和滞育。根据导致隐生的环境因子的不同,又可分为低湿隐生、低温隐生、高压隐生、低氧隐生四种形式。滞育包括包囊和休眠卵两种形式。缓步动物的三种休眠状态(桶状、包囊和休眠卵)在其一生中任何一个阶段都能够出现,以度过极端不利的环境,并以此延长生物个体的寿命。总之,休眠现象在缓步动物的生态和进化方面具有不可估量的作用。 The current progress in research of dormancy of tardigrada was reviewed in this paper. Dormancy is a collective name for an ametabolie state of life utilized by Tardigrada to overcome periods of unfavourable environment conditions. The dormancy was classified as eryptobiosis (e. g. , anhydrobiosis, cryobiosis, osmobiosis and anoxybiosis) or diapause (e. g. , encystment and resting eggs). The dormant state in tardigrade (e. g. , tuns, cyst, resting eggs) can occur at any stage of life, which can help tardigrades survive some unfavorable environments, extending individual's life-span. In a word, dormancy plays an important role in ecology and evolution of Tardigrada.
出处 《四川动物》 CSCD 北大核心 2006年第1期191-195,共5页 Sichuan Journal of Zoology
基金 陕西省自然科学基金资助项目(98H16)
关键词 缓步动物 休眠现象 隐生 滞育 Tardigrada dormancy cryptobiosis diapause
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