Biochemie (Fachbereich Chemie), Philipps-Universität, Hans-Meerwein-Strasse, D-3500, Marburg, Federal Republic of Germany.
Planta. 1983 Jan;159(1):25-9. doi: 10.1007/BF00998810.
The action of light on the formation of stilbenes and the induction of stilbene synthase in dark-grown and light-grown callus of peanut (Arachis hypogaea) was investigated over the wavelength range from 250 to 400 nm. Ultraviolet light of 260-270 nm had a significant and selective effect on the formation of resveratrol and isopentenylresveratrol. The callus responded by the production of stilbene synthase, with maximal activity appearing 4 h after irradiation with a fluence rate of 1 W m(-2) (270 nm) applied for 10 min. At lower fluence rates, maximal responses in enzyme activity were shifted to longer induction periods. The efficiency of the biosynthetic pathway, and the form and maxima of enzyme profiles depended on the duration of exposure. We failed to demonstrate any significant influence of red light at low energy irradiation (672 nm, 726 nm and 753 nm).
研究了波长范围为 250nm 至 400nm 的光对花生（Arachis hypogaea）黑暗和光照培养愈伤组织中芪类化合物的形成和芪合酶诱导的作用。260nm 至 270nm 的紫外光对白藜芦醇和异戊烯基白藜芦醇的形成有显著的选择性影响。愈伤组织通过产生芪合酶来做出反应，在以 1W m(-2) 的辐照度（270nm）照射 10 分钟后，4 小时后出现最大活性。在较低的辐照度下，酶活性的最大反应被转移到更长的诱导期。生物合成途径的效率、酶谱的形式和最大值取决于暴露时间。我们未能证明低能量照射（672nm、726nm 和 753nm）的红光有任何显著影响。
