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Life history of Porphyra seriata Kjellman ( Bangiales, Rhodophyta) from Korea in culture
김남길,Masahiro Notoya 한국조류학회I 2004 ALGAE Vol.19 No.4
The laboratory culture study of Porphyra seriata Kjellman from Korea was conducted at different conditions of temperatures (5, 10, 15, 20, 25 and 30C), photon flux densities (10, 20, 40 and 80 ?mol m-2 s-1) and photoperiods (14L: 10D and 10L:14D). Conchocelis filaments grew fast at 15-20C and 20-80 ?mol m-2 s-1 under both photoperiods. Conchosporangial branches were produced at 5-25C, and abundant when the conchocelis filaments were cultured at higher temperatures of 20-25C under both photoperiods. Foliose thalli grew well at 15-20C under 10L:14D and at 20C under 14L:10D. At 30C, the foliose thallus failed to survive. No archeospores were observed at any culture conditions. Spermatangia and zygotosporangia were formed in squarish patches at the upper marginal portion of mature thalli. Anatomical examination revealed that the mature spermatangia were 64 (a/4, b/2, c/8) and 128 (a/4, b/4, c/8), and that of zygotosporangium was 16 (a/2, b/2, c/4) according to the Hus' formula.
Life History of Porphyra seriata Kjellman (Bangiales, Rhodophyta) from Korea in Laboratory Culture
Kim, Nam-Gil,Notoya, Masahiro The Korean Society of Phycology 2004 ALGAE Vol.19 No.4
The laboratory culture study of Porphyra seriata Kjellman from Korea was conducted at different conditions of temperatures (5, 10, 15, 20, 25 and 30${^{\circ}C}$), photon flux densities (10, 20, 40 and 80 $\mu$mol $^{-2}s^{-1}$) and photoperiods (14L: 10D and 10L:14D). Conchocelis filaments grew fast at 15-20${^{\circ}C}$ and 20-80 $\mu$mol $^{-2}s^{-1}$ under both photoperiods. Concho sporangial branches were produced at 5-25${^{\circ}C}$, and abundant when the conchocelis filaments were cultured at higher temperatures of 20-25${^{\circ}C}$ under both photoperiods. Foliose thalli grew well at 15-20${^{\circ}C}$ under 10L:14D and at 20${^{\circ}C}$ under 14L:10D. At 30${^{\circ}C}$, the foliose thallus failed to survive. No archespores were observed at any culture conditions. Spermatangia and zygotosporangia were formed in squarish patches at the upper marginal portion of mature thalli. Anatomical examination revealed that the mature spermatangia were 64 (a/4, b/2, c/8) and 128 (a/4, b/4, c/8), and that of zygotosporangium was 16 (a/2, b/2, c/4) according to the Hus' formula.