By Wolfgang; Wichard, Wilfried Weitschat
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Cell walls also increase in extensibility during drying and recovery, correlating with expression of three alpha-expansin genes in C. raterostigma lantagineum (Jones and McQueen-Mason 2004). Presumably, these changes in cell wall properties relate to the strategy that these plants use to limit mechanical stresses during dehydration by allowing their cell walls to invaginate and fold. 7 Survival Strategies for Dehydration Extremophiles Desiccation-tolerant plants appear to have two distinct strategies for responding to, preparing for, and surviving desiccation: constitutive protection coupled with rehydration-induced repair and induced cellular protection coupled with rehydration-induced repair.
Raterostigma lantagineum (Jones and McQueen-Mason 2004). Presumably, these changes in cell wall properties relate to the strategy that these plants use to limit mechanical stresses during dehydration by allowing their cell walls to invaginate and fold. 7 Survival Strategies for Dehydration Extremophiles Desiccation-tolerant plants appear to have two distinct strategies for responding to, preparing for, and surviving desiccation: constitutive protection coupled with rehydration-induced repair and induced cellular protection coupled with rehydration-induced repair.
2004). Trehalose, however, is either absent or present in only small amounts in other resurrection plants such as Myrothamnus flabellifolius and S. stapfianus (Bianchi et al. 1993, Drennan et al. 1993, Albini et al. 1994). , singlet oxygen, hydroxyl radicals, hydrogen peroxide, and superoxide anions) increase in plant cells and tissues (Smirnoff 1998, Apel and Hirt 2004). ROS and free radicals are primarily generated in the chloroplast by the Mahler reaction and the antenna pigments, and their main effect is to inhibit the repair of damage to photosystem II and synthesis of D1 protein (Allen 1995).