关键词: 林擒, 花红, 揪子, 苹果属, 分类, 过氧化物酶同工酶检测

Abstract: Parasitic tumours are raised from the trunk and bough of Chinese pear-leaved crabapple. The character of Chinese pear-leaved crab-apple is different from Malus asiatica Nakai in leaves, shoots, flowers and fruits. It was shown from peroxidase isozyme examined by polyacrylamide gel flat electrophoresis that the bands are quite different among M. asiatica Nakai, M. prunifolia Borkh. and M. pumila Mill. The band of Chinese pear-leaved crabapple is more similar to that of M. asiatica Nakai, both have three strong bands, and Rf value of the two is equal, i.e. Rf=0.53, 0.56. In addition, Chinese pear-leaved crabapple has one more weak band than that of M. asiatica Nakai, its Rf=0.80. The results show that Chinese pear-leaved crabapple is a variety of M. asiatica Nakai. It is named to Maius asiatica Nakai var. rinki.

Key words: Chinese pear-leaved crabapple (Malus asiatica var. rinki), M. asiatica Nakai, M. prunifolia Borkh., M. pumila Mill., Classification, Peroxidase isozyme analysis