Cryptic form of mRNA in dormant artemia salina cysts

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Abstract

Dormant Artemia salina cysts are almost devoid of polysomal structures but contain appreciable quantities of mRNA that sediments mainly as a 40S complex in sucrose gradients. The mRNA can be isolated from this complex and efficiently translated in a wheat germ cell-free system, although the 40S complex itself is inactive. During rehydration of the cysts, mRNA becomes increasingly involved in polysomal complexes which can be actively translated in the cell-free system.

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