滇产植物的皂素成份研究IV，IV中药三七的两种皂甙（1）

我们从三七(Panax notoginseng (Burk.) F. H. Chen) 根中分离得皂甙A和皂甙C.根据熔点、比旋光度及元素分析、红外、核磁证明皂甙A与 S. Shibata等从同属植物人参(Panax ginseng)中分离得到Ginsenoside-Rg1 (6, 20-di-O-β-D-glucosyl-20S-Protopanxatriol)是同一化合物；皂甙C与 Ginsenoside- Rb2(20S- Proto-panaxadiol-3-0-β-D-glucopyranosy1 (l→2 )-β-D-glucopyranoside]-20-O-α-L-arabino-pyranosyl(1→6)-β-D-glucopyranoside] )是同一化合物。

A PRELIMINARY STUDY ON THE IDENTIFICATION FOR THE PLOIDY OF THE WHEAT POLLEN PLANTLETS BY THE LENGTH OF STOMA

Basing on the length measurments of the guard ceIls in wheat pollen plantlets and analysis of variance on the data, the author obtained the results as follows:(1)The form and size between the wheat haploids and diploids were quite similar,but the difference between the respective stomatal length of them was significant.(2)As regards the pollen plants obtained from the F 1 hybrlds,they were notably segregated in character,but the difference of the dto,atal length was not significant either among the haploids themselves or among the diploids.Hence, this method may be used to identify the ploidy-level of wheat pollen plantlets, and this process easier and quicker could be used than the chromosome-count in the root-tip cells.