期刊论文

中文

微体古生物学报

1000-0674

2011

28

2

169-180

中国科学院战略性先导科技专项——应对气候变化的碳收支认证及相关问题（XDA05130401） 国家自然科学基金项目（40971029）资助

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利用光学显微镜(LM)和扫描电子显微镜(SEM)观察了针茅族7种花粉形态。观察显示,花粉形态均为近球形,具远极单孔,并有萌发孔盖(Operculum)。LM观察到花粉外壁纹饰具粗细不一的颗粒状结构,SEM则可辨不同种类的颗粒或瘤状结构的大小及其形成图案的差异,其中芨芨草属(Achnatherum)花粉外壁纹饰的种间差异尤为显著,而针茅属(Stipa)和落芒草属(Piptatherum)花粉的种间差异并不明显。根据LM图像测量得到了具有生物统计意义的形态学指标,如花粉粒直径(Diameter)、萌发孔直径(Porate diameter)、外壁厚度(Exine thickness)、萌发孔环带直径(Annulus diameter)与宽度(Annulus width),形态学测量数据的统计...

Pollen morphology of 7 species in Stipeae is studied based on LM and SEM observation.All pollen grains are uniformly spheroid in shape,with distal monoporate associated with annulus,and operculum.Ornamentation of pollen exine shows fuzzy granulate under LM,while distinct granulate or verrucate exine under SEM.Noticeably,interspecific variation of exine ornamentation can be recognized in Achnatherum.Biometric method are adopted to understand the pollen morphological difference,such as grain diameter,porate diameter,exine thickness,annulus diame-...