广西植物2009，Vol.29Issue(3)：285-295,11.
天仙子族(茄科)的花粉形态补充研究及其系统学意义
Supplemental study on the pollen morphology of the tribe Hyoscyameae (Solanaceae) and its systematic significance
摘要
Abstract
Pollen grains of 23 species in seven genera of the tribe Hyoscyameae (Solanaceae) and three related genera (Atropa,Mandragora,Lycium) were investigated under SEM. The pollen grains are globose,subglobose,oblate or prolate in shape. Germination apertures were absent or present and are irregularly poroid,3-colpate,4-colpate,3-or 4-colpate,pantocolpate or 3-colporate. The exine ornamentation was spinulose,tuberculate,variously striate,striate-foveolate,striate-reticulate,rugose-sinuate,minutely reticulate or reticulate. The colpal membrane was nearly smooth but with granular,spinulose or tuberculate protuberances. The pollen grains show great variation between genera in the Hyoscyameae in the presence and type of a germination aperture and exine ornamentation. These may be important characters in revealing phylogenetic relationship in the tribe. The evolutionary trend in germination apertures ranges from absent or presence to 3-or 4-colpate then to 3-colporate. Anisodus,which lacks germination apertures,is considered to be primitive,while genera with 3-colporate pollen grains,such as Przewalskia and Hyoscyamus are believed to be advanced.关键词
花粉形态/天仙子族/茄科/系统学意义Key words
pollen morphology/ tribe Hyoscyameae/ Solanaceae/ systematic significance分类
农业科技引用本文复制引用
张志耘,杨冬之,Joongku Lee,李良千..天仙子族(茄科)的花粉形态补充研究及其系统学意义[J].广西植物,2009,29(3):285-295,11.基金项目
the Plant Diversity Research Center of the 21ST Frontier Research Program Funded by the Ministry of Education and Science and Technology of Korea(PF 06100-00) （PF 06100-00）
国家自然科学基金(30270094,30530050) （30270094,30530050）
