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자료유형
학술저널
저자정보
저널정보
한국환경생물학회 환경생물 환경생물 제23권 제2호
발행연도
2005.1
수록면
135 - 140 (6page)

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초록· 키워드

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- In order to construct an artificial cultivation of Nostoc flagelliformeon solid medium,we attempted to assess the viability of approaches, which utilized either BG-11 agar or sandmedium using both sterile and non-sterile algal segments. In the trial in which the BG-11 agarmedium was inoculated with the non-sterile algal segments, the algae exhibited the rapid growthin the initial 4 days of cultivation. However, after 4 days of cultivation, the growth rate of thealgae slowed, and the algal growth was completely stopped by 7 days of cultivation. When theBG-11 medium was inoculated with the sterile algal segments, the algae exhibited the rapidgrowth for a longer period of 8 days, reaching a length of 24.9 mm. The growth rate during thisperiod was measured to be 24.5%. After the 8 days of cultivation, the algal growth rate began toslow and had almost stopped by the 13 days of cultivation. On the other hand, when the sterilealgal segments were inoculated onto a sand plate, the algal segments decomposed, reaching totaldecomposition after 11 days of cultivation. By way of contrast, the desiccation treatment samplescontinued to grow for 14 days of cultivation. After 14 days of cultivation, the algae achieved alength of 26.1 mm, with a growth rate of 30.6%. Our results indicate that periodic desiccationmay constitute an effective strategy for the prevention of algal decomposition.

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