Abstract:Plants use two distinct isoprenoid biosynthesis pathways: the methylerythritol phosphate (MEP) pathway and mevalonic acid (MVA) pathway. 1-deoxy-D-xylulose5-phosphate synthase (DXS) and 1-deoxy-D-xylulose5-phosphate reductoisomerase (DXR) are the rate-limiting enzymes in the MEP pathway, and 3-hydroxy-3-methylglutaryl-CoA reductase (HMGR) is a key regulatory enzyme in the MVA pathway. Previously, overexpression of Populus trichocarpa PtDXR in Nanlin 895 poplar was found to upregulate resistance to salt and dro… Show more
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