首页|横断山区植物的花粉形态及生态意义

横断山区植物的花粉形态及生态意义

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应用光学显微镜和扫描电子显微镜对中国西南部横断山区夏季开花的27科43属46种2变种植物的花粉形态进行了观察和研究,并对花粉形态进行了细致的描述.结果表明,花粉类型以近长球形—长球形和长球形为主,分别为27.1％和25％,还有少量的为球形,近球形—近长球形,近扁球形和四合花粉.萌发孔以3孔沟为主,占43.8％,还有3沟,散孔,多沟,三拟孔沟,6-沟,单沟等类型.外壁纹饰以细网状为主占50％,还有粗网状,细颗粒状,光滑,刺状纹饰等.这些物种的孢粉学特征为第四纪地层孢粉研究提供了现代孢粉学依据.此外在花粉形态性状基础上,通过SPSS软件聚类分析,对部分同科物种间的鉴定特征进行了讨论分析,并根据植物的生态学特性讨论了它们的生态环境指示意义.
Pollen Morphology of Plants from the Hengduan Mountains and Their Ecological Significance
Pollen morphology of selected taxa from the Hengduan Mountains, Southwest China are investigated in the present study.Forty-eight taxa (flowering in the summer, 46 species and 2 varieties) of 43 genera belonging to 27 families were observed by light and scanning electron microscopy.Pollen morphology is described in detail.Two pollen shapes are mainly found in these species: subprolate to prolate (27.1％) and prolate (25％).Spheroidal, subspheroidal to subprolate, suboblate and tetrad shapes can also be found in some species.Aperture type is mostly tricolporate, with a percentage of 43.8, and also contains tricolpate, pantoporate, stephanocolpate, 3-colporoid, 6-colpate, monocolpate.The most common ornamentation is finely reticulate, with a percentage of 50.Other exine ornamentations, such as coarsely reticulate, finely granulate, smooth, spinulose are also observed.The palynological documentation of these species will provide the modern palynological basis for paleopalynological studies of the Quaternary Strata.On the basis of pollen morphology characters, identification features of some species in the same families were discussed according to the results of cluster analysis used by SPSS.The ecological significance was also discussed based on the ecological properties of these taxa.

Pollen morphologyEcological significanceHengduan Mountains

郑鑫、闵运江、徐波、孙航、周忠泽

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安徽大学资源与环境工程学院,安徽省生物多样性信息中心,合肥230601

西南林业大学林学院,昆明650204

中国科学院昆明植物研究所,昆明650201

花粉形态 生态意义 横断山区

Specialized Research Fund for the Doctoral Program of Higher Education of ChinaNational Natural Science Foundation of ChinaState Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS

2012340111000541072251No.113106

2015

10.7677/ynzwyj201515044

植物多样性(英文)
中国科学院昆明植物研究所，中国植物学会

植物多样性(英文)

CSTPCDCSCD北大核心
影响因子：0.617
ISSN：2096-2703
年,卷(期)：2015.37(6)
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