http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
신용광,김광식 ( Yong Kwang Shin,Kwang Sik Kim ) 한국환경농학회 1994 한국환경농학회지 Vol.13 No.3
A simplified closed static chamber method was devised for measurement of methane flux from paddy fields. Compared to automatic methane measuring system(AMMS) this chamber method provides availability with moderate costs of setup and maintenance, while it also provides the time-effectiveness compared to other closed top-type chamber method. It accommodates 30 chambers within 2 hours sampling period with two persons. And it provide a rapid and accurate analysis of methane, 30-40 samples per hour. Modified method for N₂O measurements provides a precise and accurate analysis of nitrous oxide without upgrading additional heating zones for gas sampling(switching) valves.
백색 완두유묘의 IAA 분해효소계에 미치는 저온의 영향
김광식,박창규,박노동,신용광 한국농화학회 1990 Applied Biological Chemistry (Appl Biol Chem) Vol.33 No.2
Previous work has shown that the levels of Free and total IAA and tryptophan decrease on exposing etiolated pea (Pisum sativum L. var. Sparkle) seedlings grown at 25℃ to 5℃ for 3 days, suggesting that low temperature down-regulates the level of endogenous IAA, in part, by reducing tryptophan biosynthesis. To understand, in this study, the effect of low temperature on the regulation of IAA degradation system in etiolated pea seedlings, enzyme levels of IAA degradation system and hydrogen peroxide content were analyzed during and after chilling(5℃) 6-day-old pea seedlings grown at 25℃. The levels of IAA oxidase and peroxidase increased during chilling and gradually restored to the level of control on termination of chilling. Catalase levels decreased upon chilling and increased to the level of control on termination of chilling. H₂O₂ was accumulated 역ing chilling up to the level of 5.5μ㏖/g fresh weight while at 25℃ maintained a relatively constant, H₂O₂level of 4μ㏖/g FW. All together, it. appears that, low temperature, in part, by increasing enzyme levels of IAA degradation system and accumulating H₂O₂, down-regulates endogenous level of IAA in etiolated pea shoots.