Alcohol dehydrogenase (ADH) activity was present in roots and shoots of 48-h rice embryos and rose in response to anoxia. The increase was accompanied by changes in the ADH isozyme pattern. Translatable levels of mRNA for two ADH peptides increases as early as 1 h after the beginning of anoxic treatment. Adh mRNA was detected in aerobically grown rice embryos by hybridization to maize Adh1 cDNA: its level increased significantly after 3 h of anoxia.
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