菜豆叶片运动的计算机分析。
Computer analysis of the leaf movements of pinto beans.
作者信息
Hoshizaki T, Hamner K C
机构信息
Space Biology Laboratory, Brain Research Institute, and Department of Botanical Sciences, University of California, Los Angeles, California 90024.
出版信息
Plant Physiol. 1969 Jul;44(7):1045-50. doi: 10.1104/pp.44.7.1045.
Computer analysis was used for the detection of rhythmic components and the estimation of period length in leaf movement records. The results of this study indicated that spectral analysis can be profitably used to determine rhythmic components in leaf movements.In Pinto bean plants (Phaseolus vulgaris L.) grown for 28 days under continuous light of 750 ft-c and at a constant temperature of 28 degrees , there was only 1 highly significant rhythmic component in the leaf movements. The period of this rhythm was 27.3 hr. In plants grown at 20 degrees , there were 2 highly significant rhythmic components: 1 of 13.8 hr and a much stronger 1 of 27.3 hr. At 15 degrees , the highly significant rhythmic components were also 27.3 and 13.8 hr in length but were of equal intensity. Random movements less than 9 hr in length became very pronounced at this temperature. At 10 degrees , no significant rhythm was found in the leaf movements. At 5 degrees , the leaf movements ceased within 1 day.
利用计算机分析来检测叶片运动记录中的节律成分并估计周期长度。本研究结果表明，频谱分析可有效地用于确定叶片运动中的节律成分。在750英尺烛光的连续光照和28摄氏度的恒定温度下生长28天的菜豆植株（菜豆）中，叶片运动仅有1个高度显著的节律成分。该节律的周期为27.3小时。在20摄氏度下生长的植株中有2个高度显著的节律成分：1个为13.8小时，另1个更强，为27.3小时。在15摄氏度时，高度显著的节律成分长度也为27.3小时和13.8小时，但强度相等。在这个温度下，长度小于9小时的随机运动变得非常明显。在10摄氏度时，未在叶片运动中发现显著节律。在5摄氏度时，叶片运动在1天内停止。
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