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当前位置: 首页 > 文章 > 绣球属29种植物的种子微形态研究 园艺学报 2018 (6) 1147-1159
Position: Home > Articles > Studies of the Seed Micromorphology of Twenty-nine Species of Hydrangea Acta Horticulturae Sinica 2018 (6) 1147-1159

绣球属29种植物的种子微形态研究

作  者：
张梅;刘旭;周惠龙;李振宇;于胜祥
单  位：
中国科学院植物研究所系统与进化植物学国家重点实验室;中国科学院大学;浙江九龙山国家级自然保护区管理局;重庆市药物种植研究所
关键词：
绣球属;种子;微形态;系统学;扫描电镜
摘  要：
应用扫描电子显微镜对绣球属(Hydrangea)29种植物种子微形态特征进行观察,发现其种子形状分为椭球形和长柱形;种子表面纹饰为网脊形或网状多边形,网脊的形态为波状、深波状或近平直;网脊间常具皱褶状纹饰或近光滑。分析结果表明:传统分类中绣球属的离瓣组(sect.Petalanthae)的种子为椭球形,网脊为波状或深波状;脊间多数为不规则纹饰,少数为规则或孔穴纹饰;绣球组(sect.Hydrangea)的种子均为椭球形,网脊近平直,脊间较光滑;星毛组(sect.Cornidia)和挂苦子组(sect.Heteromallae)的种子均为长柱形,大部分具近平直状的脊,脊间较光滑;冠盖组(sect.Calyptranthe)的种子为长柱形或椭球形,表面具网状多边形纹饰,网眼内具洼点。绣球属种子形态及种皮微形态特征除了在组水平上表现出较强的特异性,在组内种水平上也表现出了一定的分类学价值,在某些组水平上种子微形态性状还具有系统学意义。
译  名：
Studies of the Seed Micromorphology of Twenty-nine Species of Hydrangea
作  者：
ZHANG Mei;LIU Xu;ZHOU Huilong;LI Zhenyu;YU Shengxiang;State Key Laboratory of Systematic and Evolutionary Botany,Institute of Botany,Chinese Academy of Sciences;University of Chinese Academy of Sciences;Chongqing Institute of Drug Cultivation;The Kowloon Hills National Nature Reserve Administration;
关键词：
Hydrangea;;seed;;micromorphology;;systematics;;SEM
摘  要：
Seed micromorphological characters of 29 species of Hydrangea were studied under SEM(Scanning Electron Microscope). Two types of seeds,viz. ellipsoid and oblong were observed with reticulate and reticulate polygon ornamentation patterns. The ridges of reticulation varies from undulate,sinuate or substraight and some rugae and without ornamentation. Shape and ornamentation patterns are specific to sections and these results also support in traditional taxonomy. Section Petalanthae were character of ellipsoid seed,undulate or sinuate ridges,irregular or regular foveate cavities among ridges;sect. Hydrangea were with ellipsoid seeds,substraight ridges,no ornamentation among ridges;sect. Cornidia and sect. Heteromallae were characterized by oblong seeds,substraight ridges,smooth among ridges; sect. Calyptranthe were of oblong or ellipsoid seeds covered with reticulated polygon ornamentations, some small foveate cavities in polygon lumina. The results indicated that seeds micromorphological characters of Hydrangea showed high specificity in sectional level classification. In addition,it has high value in circumscription among infrasectional relative species as well as with systematic significance in phylogenetic reconstructions.

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