铁兰属5种植物花粉微形态的扫描电镜观察  

Pollen features of 5 species in genus Tillandsia under SEM

作　　者：宿静[1] 汤庚国[1] 俞禄生[2] 

机构地区：[1]南京林业大学森林资源与环境学院,江苏南京210037 [2]江苏农林职业技术学院,江苏句容212400

出　　处：《南京林业大学学报（自然科学版）》2010年第1期138-140,共3页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：江苏省镇江市科技计划项目(NY2007044)

摘　　要：在扫描电子显微镜下观察了5种铁兰属植物花粉的微形态,结果表明:铁兰属植物花粉的微形态具有一定的共性,即都具有1个萌发沟,花粉外壁都具网纹纹饰,说明铁兰属植物是自然类群中较进化的类群。根据花粉形状的不同,推测松萝铁兰(Tillandsia usneoides)可能是铁兰属中较原始的种。铁兰属不同种在花粉大小、网孔形状、网孔间距等情况有较大的差异,这些花粉表面微观形态的差异可为种的分类提供依据。Pollen morphology of 5 species in genus Tillandsia were observed by standard electronic modules （SEM）. The results revealed the common features in their shape： i. e. 1-colporate and reticulate exine. All these showed that genus Tillandsia plants were more advanced i＇n evolution than the other species within the same taxa. According to the unique pollen shape, we proposed that Tillandsia might be a relatively originate species in genus Tillnndsia. The pollen size, mesh shape and space between meshes were different. Pollen morphology was one of major references in plant taxonomy.

关 键 词：铁兰属 花粉 微形态 

分 类 号：S718[农业科学—林学]