Nasu Y, Kugimoto M
Arch Environ Contam Toxicol. 1981;10(2):159-69. doi: 10.1007/BF01055618.
The environmental conditions affecting the growth and multiplication of Lemna paucicostata in the presence of heavy metals were examined to establish a phytometer method for water pollution using the duckweed, Lemna. The pH of the medium, concentration, and composition of the nutrient in the medium, and the temperature at which cultures were maintained, were found to affect the sensitivity of Lemna to heavy metals. Therefore, if the growth and multiplication of Lemna is maintained by a Bonner-Devirian's medium (pH 6.1, 7.1) above 25 degrees C, heavy metals can be detected in water.
研究了在重金属存在的情况下影响少根紫萍生长和繁殖的环境条件，以建立一种使用浮萍（紫萍属）进行水污染检测的植物检测方法。发现培养基的pH值、培养基中养分的浓度和成分以及培养时的温度会影响紫萍对重金属的敏感性。因此，如果在25摄氏度以上用邦纳-德维里安培养基（pH 6.1、7.1）维持紫萍的生长和繁殖，就可以检测水中的重金属。
