Relationship between Germination and P_<FR> Level in Spores of the Fern Lygodium japonicum
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概要
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The relationship between germination and P_<FR> level in spores of the fern Lygodium japonicum was investigated. Percent P_<FR> estimated from direct spectrophotometric measurement of spores increased with the logarithm of total fluence of 660 nm-light. The transformation from P_R to P_<FR> was saturated by giving ca. 200 Jm^<-2> of 660 nm-light and half-saturated by ca. 55Jm^<-2> of 660 nm-light. Clear positive correlation was observed between % P_<FR> levels and germination rates in spores irradiated with 660 nm and/or 730 nm-light, or with 686 or 700 nm-light. The P_<FR> Percentage in spores was raised to 16-34% by blue (415 nm) light irradiation. This P_<FR> level was enough to cause some germination when produced by monochromatic light of red to far-red region, but blue light did not cause any germination. After 660 nm-light irradiation, the P_<FR> level decreased gradually in darkness (25±1℃) and P_<FR> completely disappeared in 8 h, but 730 nm-light given even 16 h after 660 nm-light irradiation inhibited germination.
- 日本植物生理学会の論文
著者
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Sugai Michizo
Department of Biology, Faculty of Science, Toyama University
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Sugai Michizo
Department Of Biology Faculty Of Science Toyama University
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Sugai Michizo
Departmen T Of Biology Faculty Of Science Toyama University
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Tomizawa Ken-ichi
Department of Biology, Faculty of Science, University of Tokyo
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Tomizawa Ken-ichi
Department Of Biology Faculty Of Science Toyama University:(present)department Of Biology Faculty Of
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Tomizawa Ken-ichi
Department Of Biology Faculty Of Science Toyama University:(present Permanent)botany Department Facu
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Manabe Katsushi
Department of Biology, Yokohama City University
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Manabe Katsushi
Department Of Biology Yokohama City University
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Manabe Katsushi
Department Of Applied Physics Tokyo Institute Of Technology:(present Address) Railway Technical Rese
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