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在钾的示踪研究中,能否用铷代替钾的问题,是一个长期引人注意的问题。从植物生理角度看,早期有人认为,钾的生理作用可分为铷可代替的部分和铷不能代替的部分。近年来似乎已经肯定,除少数微生物外,钾是高等植物唯一的一价阳离子。尽管如此,目前仍有不少研究者用铷的数据来定量地说明钾的吸收情况。本文根据我们的实验结果提出一些看法。
In the potassium tracer studies, the question of whether rubidium can replace potassium is a long-standing concern. From the perspective of plant physiology, some people think that the physiological role of potassium can be divided into rubidium replaceable part and rubidium can not replace part. In recent years, it seems affirmed that except for a few microorganisms, potassium is the only monovalent cation of higher plants. Nevertheless, there are still many researchers using rubidium data to quantitatively explain potassium absorption. This article based on our experimental results put forward some views.