were isolated and purified, and the incorporation of the radioactive labels was determined after enzymatic degradation of the glucosides to cyanide. The labels from the amino acid precursors were incorporated into the nitrile group of their corresponding cyanohydrin glucosides, and the incorporation was in each case strongly inhibited by simultaneous feeding with either of the two nitriles. Turnera angustifolia
摘要 使用完整的植物组织研究了小叶 Turnera 中 deidaclin 和 Passiflora morifolia 中亚麻苦苷的
生物合成。放射性标记的前体,2-(2'-
环戊烯基)[2- 14 C] 甘
氨酸和 l -[U- 14 C]-缬
氨酸单独或与假定的腈中间体、2-
环戊烯腈和 2 -甲基
丙腈。
氰醇糖苷被分离和纯化,并在糖苷酶促降解为
氰化物后测定放射性标记的掺入。来自
氨基酸前体的标记被掺入到它们相应的
氰醇糖苷的腈基中,并且在每种情况下通过同时加入两种腈中的任何一种来强烈抑制掺入。