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Spore Germination in Populations of Schizaea pusilla from New Jersey and Nova Scotia
Helen Guiragossian Kiss and John Z. Kiss
International Journal of Plant Sciences
Vol. 159, No. 5 (Sep., 1998), pp. 848-852
Published by: The University of Chicago Press
Stable URL: http://www.jstor.org/stable/2475157
Page Count: 5
You can always find the topics here!Topics: Spore germination, Germination, Spores, Ferns, Storage time, Gametophytes, Fungal spores, Lipids, Plants, Geodetic position
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Schizaea pusilla is a leptosporangiate fern that occurs in bogs in two disparate geographic locations (i.e., New Jersey and Nova Scotia). In this study, we examined the effects of culture time, storage temperature, storage time, and light quality on germination of spores from populations of this fern from New Jersey and Nova Scotia. For all populations, maximal germination was achieved 42-60 d in culture at 22⚬C, and storage of spores at 4⚬C increased the percentage of germination compared to storage at 22⚬C. In terms of light quality, the relative effectiveness of germination promotion was red (maximal) > white > far-red > blue (minimal), which is a pattern similar to that of spores from the majority of ferns studied to date. By most of the parameters assayed, Schizaea spores from New Jersey had a greater magnitude of germination compared with the spores from Nova Scotia. In contrast to an earlier report, our studies show that spores from both locations have a lipid storage product. This is the first study to directly compare germination of S. pusilla spores collected from New Jersey and from Nova Scotia.
International Journal of Plant Sciences © 1998 The University of Chicago Press