Pollen morphology of selected tundra plants from the high Arctic of Ny-(A)lesund, Svalbard

• 作 者: YAOYifeng[1]ZHAOQi[2]BERASubir[3]LIXiaoli[4]LIChengsen[1]
• 机 构: State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of
• 出 处: 2012中国极地科学学术年会
• 发表日期: 2012年期

　　Documenting morphological features of modem pollen is fundamental for the identification of fossil pollen, which will assist researchers to reconstruct the vegetation and climate of a particular geologic period.This paper presents the pollen morphology of 20 species of tundra plants from the high Arctic of Ny-~lesund, Svalbard, using light and scanning electron microscopy.The plants used in this study belong to 12 families: Brassicaceae, Caryophyllaceae, Cyperaceae, Ericaceae, Juncaceae, Papaveraceae, Poaceae, Polygonaceae, Ranunculaceae, Rosaceae, Salicaceae, and Scrophulariaceae.Pollen grain shapes included:spheroidal, subprolate, and prolate.Variable apertural patterns ranged from 2-syncolpate,3-colpate, 3-(-4)-colpate, 3-(-5)-colpate, 3-colporate, 5-poroid, ulcerate, ulcus to pantoporate.Exine ornamentations comprised psilate, striate-perforate, reticulate, microechinate,microechinate-perforate, scabrate, granulate, and granulate-perforate.This study provided a useful reference for comparative studies of fossil pollen and for the reconstruction of paleovegetation and paleoclimate in Svalbard region of Arctic.