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4种睡莲花粉形态的扫描电镜观察

杨梅花，郑新开，刘升学，黄 祥，程锦涛，徐迎春
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2022年 第41卷 第1期: 1000-6281（2022）01-061-05     下载地址：

4种睡莲花粉形态的扫描电镜观察

杨梅花，郑新开，刘升学，黄  祥，程锦涛，徐迎春

（1.石河子大学农学院，新疆 石河子 832003；2.石河子大学分析测试中心，新疆 石河子 832003；3.南京农业大学园艺学院,江苏省 南京市 210095)

摘  要  本文采用扫描电镜技术对4种睡莲(雪白睡莲、万维莎、伊丽莎白、蓝美人)的花粉进行了形态学研究。结果显示，4种睡莲花粉极面观为近圆形，萌发孔均为环槽类型；雪白睡莲、万维莎和伊丽莎白均为左右对称型的异极花粉，而蓝美人为辐射对称型的等极花粉；雪白睡莲和万维莎属于中等花粉类型，伊丽莎白和蓝美人属于小花粉类型。4种睡莲除雪白睡莲外，其他3种睡莲花粉形态特征均为首次报道。为睡莲属植物的分类和进化关系研究提供了直观的孢粉学依据。

关键词  睡莲；花粉形态；孢粉学；扫描电镜

中图分类号：S682.32；Q944.571；Q336

文献标识码：A   doi:10.3969/j.issn.1000-6281.2022.01.010

 

Observation on pollen morphology of four Nymphaea species by scanning electron microscope

YANG Mei-hua1，ZHENG Xin-kai1，LIU Sheng-xue2, CHENG Jin-tao1, HUANG Xiang1，XU Ying-chun3

(1. College of Agriculture, Shihezi University, Shihezi Xinjiang 832003; 2.Analysis and Test Center, Shihezi University, Shihezi Xinjiang 832003; 3.College of Landscape gardening, Nanjing Agricultural University, Nanjing Jiangsu, 210095, China)

Abstract  The pollen morphology of four species (Nymphaea candida C. Presl, Nymphaea‘Wanvisa’, Nymphaea ‘Princess Elizabeth’, Nymphaea‘Blue Beauty’) were observed by scanning electron microscope. The results showed thatthe polar view of these four waterlilies were nearly circular, and the grain apertures were zonasulculate. What’s more, N. candida, N.‘Wanvisa’ and  N.‘Princess Elizabeth’were bilateral symmetry and hemimorphic, whileN. ‘Blue Beauty’ was tadially symmetrical and isopolar; N.candidaand N.‘Wanvisa’ were medium pollen grains, while N.‘Princess Elizabeth’ and N.‘Blue Beauty’ were small pollen grains. Except for N. candida, the pollen morphology of the other three waterlilies are reported for the first time. The results can provide intuitive palynological basis for the taxonomic and evolutionary relationships of Nymphaea.

Keywords  Nymphaea; pollen morphology; palynology;scanning electron microscope

 

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