Leaf-feeding resistance to this insect is conditioned by increasing tissue concentrations of benzoxazolinones and their precursor hydroxamic acids . 对这种害虫取食叶片的抗性决定于组织中苯并唑啉酮及其前体氧、肟酸浓度的增加。
Lysine is a precursor of certain alkaloids 赖氨酸是某些生物碱的前体。
Glycerate 3 - phosphate is a precursor of the amino acid serine 甘油3 -磷酸是丝氨酸的前体。
Cloning , prokaryotic expression of the mink prp precursor gene 水貂朊蛋白前体基因的原核表达
Analysis of arom precursors in oolong tea 乌龙茶肉桂香气前体成分分析