西鄂尔多斯六种强旱生植物的花粉形态及其生态因子  

STUDY ON POLLEN MORPHOLOGY AND ITS ECOLOGICAL FACTORS OF XEROPHIL IN WESTERN ERDOS

作　　者：韩雪[1] 智颖飙[1,3] 周忠泽[1] 杨持[2] 安树青[3] 宿志安 王强 

机构地区：[1]安徽大学生命科学学院,安徽省生态工程与生物技术重点实验室,合肥230039 [2]内蒙古大学生命科学学院,呼和浩特010021 [3]南京大学生命科学学院,南京210093 [4]巴彦淖尔市磴口县农业局,磴口015200 [5]西鄂尔多斯国家级自然保护区管理局,乌海016000

出　　处：《微体古生物学报》2009年第1期57-64,共8页Acta Micropalaeontologica Sinica

基　　金：国家自然科学基金(30160020,30670151);安徽省自然科学基金(03043102);安徽大学人才引进基金(06124)资助项目

摘　　要：为了探讨特殊生境条件下强旱生植物的花粉形态与生态因子的相关性,应用光学显微镜对西鄂尔多斯地区5月份开花的2科5属6种强旱生灌木刺柄叶棘豆(Oxytropis aciphylla Ledeb)、沙冬青[Ammopiptanthus mon-golic(Maxim)Cheng f.]、狭叶锦鸡儿(Caragana stenophylla Pojark)、四合木(Tetraena mongolica Maxim)、霸王(Zygophyllum xanthoxylon Maxim)和柠条锦鸡儿(Caragana korshinskii Kom)的花粉形态进行了观察和研究。结果表明:花粉粒近球形至长球形,萌发孔主要是3孔沟,沟狭。外壁纹饰主要是细网状纹饰。同时研究了采样点生态因子,包括地理位置、海拔高度、年降水量、年积温及生境等,特别提供了5月份的气候因子,得出这些花粉分布区的主要生态因子。In order to explore the special habitat of strong xerophil plant from western Erdos, Inner Mongolia, their pollen morphology were examined under light Microscope （LM） and compared with ecological factors. Six strong xerophil plants are Oxytropis aciphylla Ledeb, Ammopiptanthus mongolic （Maxim） Cheng f. , Caragana stenophylla Poiark, Tetraena mongolica Maxim, Zygophyllum xanthoxylon Maxim, Caragana korshinskii Kom. The pollen grains are subpheroidal or porlate in shape, the ornamentation of exine is microreticulum and the apertures are of tricolporate. After comparing these pollen species assemblages and geographical distribution with local altitude, annual precipitation, annual temperature and especially the spring climate, the relationship between the pollen species, morphology,habitat and environment conditions is discussed.

关 键 词：旱生植物 花粉形态 生态因子 西鄂尔多斯 内蒙古 

分 类 号：Q914[天文地球—古生物学与地层学]