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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Ref ID : 1519

John J. Gilbert; Dormancy in rotifers. Trans.Amer.Micros.Soc. 93(4):490-513, 1974

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Dormancy in bdelloid rotifers pertains to the ability of adults to survive in a frozen or desiccated state. Morphological, cytological, physiological, can ecological aspects of this cryptobiosis are discussed. Dormancy in monogonont rotifers usually is a feature of the fertilized resting egg. The structure and development of resting eggs are described. The hatching of these eggs and its control are considered in detail. Resting-egg production is a result of mictic-female production, which is controlled by different environmental factors in different rotifers. Recent literature on this subject is reviewed. An hypothesis on the relationship between the population dynamics of a rotifer and the type of environmental factor inducing dormancy is briefly presented.