Karyological Studies in Magnolia, with Special Reference to the Cytokinesis in Pollen
Karyological Studies in Magnolia, with Special Reference to the Cytokinesis in Pollen
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DOI：
10.15281/jplantres1887.51.539
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发表时间：
1937
期刊：
影响因子：
--
通讯作者：
K. Yasui
中科院分区：
文献类型：
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作者：
K. Yasui
自从GUIGNARD（1897）报道木兰属植物减数分裂以来，关于胞质分裂的方式，一直有不同的作者讨论。其中，FARR（1918）对这一问题作了详细的描述，并坚持认为胞质分裂是通过开沟过程发生的。我对这一点有些怀疑，在过去的三年里，我一直在研究木兰花PMC ®的减数分裂。一些作者也研究了染色体数目的变化。不考虑这些数字在以前的报告，大多是不确定的，一个多倍体系列，其基数为19。Magnolia purascens MAKINO（M.显著变种purpurascens MAXIM.）是被MAKINO认为是Al. denuclata DESR的杂交种。和A1。百合植物群，他的观点是基于植物的外部形态特征。我对这种植物进行了细胞学研究，并与M.根据贝利的说法，这是一种人工饲养的杂交种。在本文中，我将主要讨论多倍体和M，purpurascens的杂种性质问题，以及关于胞质分裂的一些评论，其细节将在另一个地方给出。
Since GUIGNARD (1897) reported oii the meiosis In Magnolia the mode of cytokinesis has been discussed by various authors. Among them FARR (1918) gave a detailed description on this matter and maintained that the cytokinesis takes place by a process of furrowing. having some doubt on this point I have been studying the meiosis in the PMC ®f Magnolia for these last three years. Chromosome number hi lllagnolia was also studied by several authors. Not taking into consideration those numbers in earlier reports which are mostly uncertain, a polyploid series whose basic number is 19 is found among them. Magnolia purpurascens MAKINO (M. conspicua var. purpurascens MAXIM.) is a plant which was considered by MAKINO as a hybrid between Al. d enuclata DESR. and A1. lili flora DESR., his view being based on the external morphological characters of the plant. I have studied this plant cytologically and compared it with M. Soulangeana which is according to BAILEY an artificially raised hybrid between the presumed parents. In the present paper I shall eoncern myself chiefly with the polyploldy, and the question of the hybrid nature of M, purpurascens and also with some remarks on cytokinesis, the details of which are to be given in another place.