每种情况都表明归因于玉米素的细胞繁殖水平。 权威例句 tRNA is the source of low-level trans-zeatin production in Methylobacterium spp. Distinct isoprenoid origins of cis- and trans-zeatin biosyntheses in Arabidopsis. A maize cytokinin gene encoding an O-glucosyltransferase specific to cis-zeatin ...