山西农业大学学报（自然科学版）2025，Vol.45Issue(6)：31-42,12.DOI:10.13842/j.cnki.issn1671-8151.202505050
16种兰科植物的花粉形态特征研究
Comparative analysis of pollen morphological characteristics in 16 species of Orchids
摘要
Abstract
[Objective]The purposes of this study was to investigate the pollen morphological characteristics of different orchids to provide a basis for the classification,identification,and plant evolution of the Orchidaceae.[Methods]The pollen morpholo-gy of 16 Orchidaceae species was observed and analyzed using scanning electron microscopy(SEM),followed by principal component analysis(PCA)and cluster analysis.[Results]The pollen structures of the 16 Orchidaceae species included monads,tetrads,and pollinia.Pollen shapes were rhomboidal,tetragonal,ellipsoidal,triangular pyramidal,pear-shaped,pen-tagonal,and other irregular shapes;tetrad types were mostly rhomboidal,tetragonal,and ellipsoidal.The exine surface orna-mentation could be categorized into six types:wart-like,worm-like,wrinkled,micro-reticulated,foveolate,and reticulate.No distinct apertures were observed.Obvious adhesive substances were visible on the pollen surfaces of Acanthephippium syl-hetense,Renanthera coccinea,and Zeuxine strateumatica,while no significant sticky substances were found on the surface of most species.[Conclusion]There were significant differences in pollen morphology,size,and exine ornamentation among dif-ferent species and genera,showing rich diversity.Considering the overall characteristics of pollen morphology,the Orchidace-ae belongs to a relatively advanced plant group in terms of plant evolution.关键词
兰科/花粉形态/外壁纹饰/扫描电子显微镜Key words
Orchidaceae/Pollen morphology/Exine sculpture/Scanning electron microscopy(SEM)分类
农业科技引用本文复制引用
王艾岚,郝秀东,欧阳绪红,薛美玲,劳月英,秦琳娟,韦嘉胜,陆雅娴..16种兰科植物的花粉形态特征研究[J].山西农业大学学报（自然科学版）,2025,45(6):31-42,12.基金项目
广西自然科学基金(2023GXNSFBA026263,2025GXNSFBAA069308) （2023GXNSFBA026263,2025GXNSFBAA069308）
国家自然科学基金项目(42001076 （）
42542053) （）
中国科学院南京地质古生物研究所古生物学与油气地层应用全国重点实验室项目(223109) （223109）
