杉木不同无性系过氧化物酶同工酶的研究

本文对杉木（Ｃｕｎｎｉｎｇｈａｍｉａｌａｎｃｅｌｏａｔａ（Ｌａｍｂ．）Ｈｏｏｋ．）不同无性系及其不同株龄的叶和不同发育时期的雄球花进行了过氧化物酶同工酶检测。结果表明：杉木４１４号无性系叶和雄球花的过氧化物酶同工酶酶谱与其它无性系都具明显差异；同－无性系叶与雄球花的过氧化物酶同工酶酶谱存在显著差异；不同发育时期的雄球花的过氧化物酶同工酶存在顺序表达。作者认为：过氧化物酶同工酶作为种内分类的鉴定性状较为合适，而科、属、种的分类依据则应更侧重于形态特征。根据杉木４１４号无性系的过氧化物酶同工酶的特异性及其短叶、叶端钝圆和多雄花等特点，可以把它定为杉科杉属杉木物种的一个变型：多雄花杉木。

STUDIES ON THE PEROXIDASE ISOZYME FROM THE DIFFERENT ASEXUAL SERIES OF CUNNINGHAMIA LANCEOLATA

This paper studies on the peroxidase isozyme of the leaves of several kinds of the Cunninghamia lanceolata asexual series, their leaves of different ages and their male cones of the different periods of development. There is considerable difference between the peroxidase isozymes of leaves and microtrobirus in the 414 asexual series and those of others, prominently difference exists between the perexidase isozyme of leaves and microtrobirus in same asexual series; the peroxidase isozyme of the microtrobirus exist sequence of expression in different periods of development. So it seems that their peroxidase isozymes may be suitable for the index to the classification of intraspecies, and the index to the determination of families, genera or species is to lay particular emphasis on their morphological characteristics. Based on the speciality of the peroxidase isozyme of the 414 asexual series and its short leaf, blunt leaf apex, multi-masculinus, etc. We think the 414 asexual series ought to be C.lanceolala (Lamb.) Hook. var. multi-masculinus Lu.