Abstract

By the TEM method, on the partially degraded wall of the microspores of Selaginella bellula Moore, the basic biopolymer units in angstrom dimension were observed. These results are the first on Pteridophyta spores in this field. Using the modified Markham rotation method in the outmost layer of the wall (perispore) a hexagonal, in the exospore a regular pentagonal polygon biopolymer unit was established. On the basis of the recently elaborated methods of the biopolymer of the biopolymer organization of the sporoderm the hexagonal biopolymer organization may be modeled with the TICOS polyhedra. The effect of high temperature was investigated to the qualitative and quantitative morphological characteristic features of micro-and megaspores. In comparison to previous results on gymnosperm and angiosperm pollen grains, the alterations of the spores of the genus Selaginella are not so striking.

中文摘要

本研究為蕨類孢子此類研究之首次報告，即以穿透式顯微鏡可觀察孢子壁之雙聚合體單位之結構。使用排選轉機發現孢子外被層為六角形而外壁為五角形之多角聚合體單位組成，因此最新孢子壁之表示法為多角型。高溫定性定量處理卷柏大小孢子後，發現其變化比從前研究發表之裸子植物及被子植物花粉較微。熱反應（變更）指標（TAI）與現生孢子顏色之研究成果可應用於石油工業。卷柏屬四分體孢子或有助於古環境之重建。