利用扫描电子显微镜(SEM),对河南33个蜡梅品种进行花粉形态观测研究。结果表明: 蜡梅花粉属等极、左右对称型花粉,大小中等,多为长球形,以单粒形式存在,具2孔沟; 外壁纹饰分疣状、蠕虫状、孔穴状及穴状4种类型; 花粉形态(特别是花粉外壁纹饰、花粉形状及大小的差异)可作为蜡梅品种分类的参考依据之一; 但其花粉性状与外部形态无明显的相关性。因此不支持单独以花粉形态特征来区分和鉴定蜡梅品种。
Pollen morphologies of 33 different wintersweet (Chimonanthus praecox) cultivars in Henan were observed under SEM. Results showed: the wintersweet pollen grains was iso-polar, bilateral symmetry, and existed in the form of single grain, and most of grains were prolate; the pollen had 2-colporate. The exine sculptures were verrucous, vermicule, perforated and cave-shaped; the pollen morphology. The exine sculpture features, pollen shape and pollen size) could be used as the reference bases in the wintersweet cultivars classifications. The pollen morphology was not directly correlated with the external morphology. This study dose not support hypothesis classifying and identifying wintersweet cultivars by pollen morphology alone.
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R()F§¨PQ§q§¨PQÉ
k%îò
5
B
&
()Ýv
5
r/0/4 25#;"$5k0TS3VTSHYTHSF/X@/0F4 JS3I4 VYH0@THSI4JI4 VFZFS30
V@FYIFV/XS/V3YF3FX3
8%"#$& 8" 68;5
*I4J2! RL34JC -! GIC R5#;;85, @30W4/0/JIY30VTHUW/X
Y30WY34TL3YF3F53TLW3! :& #9; 6#""5
!
!"#$
7
nop
"
>;