山西农业大学学报（自然科学版）2019，Vol.39Issue(3)：7-13,7.DOI:10.13842/j.cnki.issn1671-8151.201810047
中国沙棘花形态结构的扫描电镜观察
Blossom anatomy of Hip pophae rhamnoides subsp.sinensis Rousi
摘要
Abstract
[Objectives]The aims of present study were to explore the surface morphological structure of female and male flowers of Hippophae rhamnoides subsp.sinensis Rousi and its relationship with function,and to provide basis for pol-lination,breeding and cultivation of Hippophae rhamnoides subsp.sinensis Rousi.[Methods]The surface morphology of bracts,calyx,stamens,pistils,and pollen of both male and female flowers of Hippophae rhamnoides subsp.sinen-sis Rousi were observed using scanning electron microscopy.[Results]The trichomes at the bottom of bracts of both male and female flowers were consisted of peltate hairs (P)and stellate-peltate scales (S-P),and the hair size depended on their location on the bracts.On the ventral surface of bracts,male blooms had single layer of S-P which were highly dissociated,while the female flowers had 2~3 layers of S-P.On the back of bracts,male blooms had monolayer peltate hairs with 2 to 3 layers of bent downiness on its tip shield,while female had a single layer of S-P.On the ventral surface of calyx,the male blooms showed a smoothly ventral surface without any downiness,while the female displayed a single layer of P and S-P.The surface of stamens was irregular striped texture.Style surface was irregular patchy texture,and the ovary was covered by 2~3 layers of peltate downiness.The pollen structure was a typical three-groove shape.[Con-clusion]The types and construction of flower epidermis of Hippophae rhamnoides subsp.sinensis Rousi are various and play an important role in extreme cold resistance of the plants and flower buds and reproductive organs protection o-ver winter.关键词
中国沙棘花/扫描电镜/形态结构Key words
Hippophae rhamnoides subsp/Sinensis rousi bloom/Scanning electron microscope/Morphological structue分类
农业科技引用本文复制引用
张雪娟,张欣,王小莉,刘庆华,郭海利,张小民..中国沙棘花形态结构的扫描电镜观察[J].山西农业大学学报（自然科学版）,2019,39(3):7-13,7.基金项目
国家"十二五"科技支撑计划项目(2011BAI07B01) （2011BAI07B01）
山西省黄芪资源产业化及产业国际化协同创新中心项目(HQXTCXZX2016-004) （HQXTCXZX2016-004）
山西省科技攻关计划振东专项(2014ZD0501-1) （2014ZD0501-1）
山西省农业科技成果转化和推广示范项目(SXNKTG201810) （SXNKTG201810）
