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논문 기본 정보

자료유형
학술저널
저자정보
Kim, Jeong-Sik (Division of Molecular and Life Sciences, Pohang University of Science and Technology) Nam, Hong-Gil (Division of Molecular and Life Sciences, Pohang University of Science and Technology)
저널정보
한국생물정보시스템생물학회 Interdisciplinary Bio Central Interdisciplinary Bio Central 제1권 제1호
발행연도
2009.1
수록면
51 - 54 (4page)

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This article is an addendum to the authors’ previous article (Kim, J. et al. (2008) Plant Cell 20, 307-319). The instrumentation and software described in this article were used to analyze the circadian leaf movement in the previous article. Here, we provide detailed and practical information on the instrumentation and the software. The source code of the LMA program is freely available from the authors. The circadian clock regulates a wide range of cyclic physiological responses with a 24 hour period in most organisms. Rhythmic leaf movement in plants is a typical robust manifestation of rhythms controlled by the circadian clock and has been used to monitor endogenous circadian clock activity. Here, we introduce a relatively easy, inexpensive, and simple approach for measuring leaf movement circadian rhythms using a USB-based web camera, public domain software and a Leaf Movement Assay (LMA) program. The LMA program is a semi-automated tool that enables the user to measure leaf lengths of individual Arabidopsis seedlings from a set of time-series images and generates a wave-form output for leaf rhythm. This is a useful and convenient tool for monitoring the status of a plant's circadian clock without an expensive commercial instrumentation and software.

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