Spore Germination in Populations of Schizaea pusilla from New Jersey and Nova Scotia
Spore Germination in Populations of Schizaea pusilla from New Jersey and Nova Scotia
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DOI：
10.1086/297606
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发表时间：
1998-09
影响因子：
2.3
通讯作者：
H. G. Kiss;J. Kiss
中科院分区：
文献类型：
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作者：
H. G. Kiss;J. Kiss
荆芥（Schizaea pusilla）是一种细孢子蕨类植物，生长在两个不同地理位置的沼泽中（即新泽西州和新斯科舍省）。在这项研究中，我们研究了培养时间、储存温度、储存时间和光照质量对这种蕨类植物孢子萌发的影响，这些蕨类植物来自新泽西州和新斯科舍省。对所有种群来说，在22 C下培养42-60 d达到最大萌发，与22 C相比，在4 C下储存孢子增加了萌发率。在光质量方面，促进萌发的相对效果为红色（最大）>白色>远红色>蓝色（最小），这与迄今为止研究的大多数蕨类植物孢子的模式相似。结果表明，来自新泽西州的裂藤孢子比来自新斯科舍省的裂藤孢子萌发率更高。与先前的报告相反，我们的研究表明，来自两个地点的孢子都有脂质储存产物。这是第一次直接比较从新泽西州和新斯科舍省收集的pusilla孢子的萌发。
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.