現生卷柏孢子之試驗研究

Experimental Investigations on Recent Selaginella Spores

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Selaginella bellula孢子壁之雙聚合體單位之結構。使用Markham牌旋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Ticos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紛較微。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。卷柏屬四分體孢子說有助於古環境之重建。

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 organization of the sporoderm the hexagonal biopolymer organization may be modelled 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.