TY -JOUR
AU -M. Kedves
TI -Experimental Investigations on Recent Selaginella Spores
PY -1990
DA -0000-00-00
JO -Taiwania
VL -35
IS -4
SP -240
EP -252
UR -https://taiwania.ntu.edu.tw/abstract/63
AB -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.
DO -10.6165/tai.1990.35.240