桑属几个种及品种过氧化物酶同工酶的研究

STUDIES ON PEROXIDASE ISOENZYME OF SOME VARIETIES OR SPECIES IN MORUS

用聚丙烯酰胺凝胶电泳的方法,对桑属植物的7个种、3个品种的过氧化物酶同工酶进行了研究.结果:桑属内共同特征酶带的表达与细胞色素氧化酶呈规律性的一致倾向,但在表型上有差异;桑属内各种、品种间的酶谱有显著差异.每个种都有不同的特征酶谱;用排序法研究同工酶可达到定量比较水平,对各桑种、品种的相似性和相异性可作出直观.定量、准确的表达.研究结果为桑属植物的分群、分类提供了资料.

The pcroxidasc isocnzymc of three varieties and seven species in Morus have been researched by polyacrylamide gcl elcctrophorcsis. The results arc as follows: 1) The common characteristic cnzymc zones exist in pcroxidasc isocnzymc and cytochrome oxidasc but their phynotypcs arc different. 2) Every species (variety) has its own characteristic zymogram. 3) The similarity and difference of mulberry species (varieties) can be detected precisely through alignment method. 4) The results provide a new basis for taxonomy of Morus.