海桑属6种植物花粉形态兼化石花粉指南  

POLLEN MORPHOLOGY OF 6 SPECIES FROM SONNERATIA AS A FOSSIL GUIDE

作　　者：毛礼米[1] 李妮娅[2] 王东[2] 陈建海 钟才荣 

机构地区：[1]中国科学院南京地质古生物研究所,现代古生物学和地层学国家重点实验室,南京210008 [2]华中师范大学生命科学学院,武汉430079 [3]海南东寨港国家级红树林自然保护区管理局,海口571129

出　　处：《古生物学报》2009年第2期254-267,共14页Acta Palaeontologica Sinica

基　　金：现代古生物学和地层学国家重点实验室基础性课题资助(0826140204)

摘　　要：利用光镜(LM)和电镜(SEM)观察和研究海桑属6种植物的花粉形态。详细描述海桑属(Sonneratia L.f.)花粉形态学特征并建立种间检索表。根据观察和分析结果,将6种植物花粉分为四种类型,即A类型(Sonneratia alba,S.×hainanensis,S.×gulngai)、B类型(S.caseolaris)、C类型(S.ovata)和D类型(S.apetala)。进而讨论海桑属花粉形态特征对化石花粉的鉴别指南,以及在古生态学研究领域的应用价值。The distribution of Sonneratia extends from East Africa to Indo-Malesia, northern Australia, New Guinea and the Western Pacific, and the Sonneratia vegetation comprises the main communities of coastal mangrove forests. This paper presents pollen morphological results based on LM and SEM observations for six species of the genus. Pollen wall debris obtained by the MP FastPrepl20 were observed using SEM in order to examine the exine stratification. Four pollen types of the Sonneratia species can be grouped, namely A type（Sonneratia alba, S. × hainanensis, S. ×gulngai）, B type （ S. ovata ）, C type （ S. caseolaris） and D type （S. apetala）. Pollen keys are established based on their morphological characteristics. Pollen morphological study on extant Sonneratia contributes our understanding of the evolution of mangrove paleobotany and paleoecosytem changes, which expands the mangrove paleoecological study field. Pollen morphological investigations of the extant Sonneratia plants provide useful information, which are important keys to the identification of fossil pollen grains of the same genus or related taxa. The significance of extant Sonneratia pollen on fossil pollen identification and paleeological study is also discussed.

关 键 词：海桑属 花粉形态 化石花粉 古生态 

分 类 号：Q914[天文地球—古生物学与地层学]