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首页> 外文期刊>In Vitro Cellular and Development Biology. Plant: Journal of the Tissue Culture Association >Soybean cell enlargement oscillates with a temperature-compensated period length of ca. 24 min.
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Soybean cell enlargement oscillates with a temperature-compensated period length of ca. 24 min.

机译：大豆细胞的振荡以温度补偿的周期长度约为。 24分钟

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摘要

Rate of enlargement of epidermal cells from soybean, when measured at intervals of 1 min using a light microscope equipped with a video measurement system, oscillated with a period length of about 24 min. This oscillation parallels the 24-min periodicity observed for the oxidation of NADH by the external plasma membrane NADH oxidase. The increase in length was not only non-linear, but intervals of rapid increase in area alternated with intervals of rapid decrease in area. The length of the period was temperature compensated, and was approximately the same when measured at 14, 24 and 34 degrees C even though the rate of cell enlargement varied over this same range of temperatures. These observations represent the first demonstration of an oscillatory growth behavior correlated with a biochemical activity where the period length of both is independent of temperature (temperature compensated) as is the hallmark of clock-related biological phenomena.
机译：当使用配备视频测量系统的光学显微镜每隔1分钟测量一次，大豆表皮细胞的扩增速率会振荡，周期约为24分钟。这种振荡与观察到的24分钟的周期平行，该周期是外部质膜NADH氧化酶对NADH的氧化作用。长度的增加不仅是非线性的，而且面积快速增加的间隔与面积快速减小的间隔交替出现。该时间段的长度是温度补偿的，并且在14、24和34摄氏度下测量时，该时间段的长度几乎相同，即使在相同的温度范围内细胞增大的速率也有所不同。这些观察结果代表了与生物化学活动相关的振荡生长行为的第一个证明，这两者的周期长度与温度（温度补偿）无关，这是与时钟相关的生物现象的标志。

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