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Many plants can accumulate glycine betaine(GlyBet, N, N, N-trimethylglycine), an non-toxic or osmo-protectant in response to salinity anddrought stress. Numerous experiments in vitrohave indicated that betaine acts as an osmoprotec-tant by stabilizing both the quaternary structure ofproteins and the highly ordered structure of mem-branes against the adverse effects of high salinityand extreme temperatures. Exogenous applicationof betaine to leaves or roots has been shown to in-crease the tol… 相似文献
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