Effect of acid solutions on plants studied by the optical beam deflection method.
Effect of acid solutions on plants studied by the optical beam deflection method.
复制标题
通过光束偏转法研究酸性溶液对植物的影响。
DOI：
10.1016/s1001-0742(14)60634-3
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Xing
中科院分区：
文献类型：
--
作者：
L. Nie;Mitsutoshi Kuboda;T. Inoue;Xing
采用光束偏转法研究了酸溶液对陆生和水生植物牛尾草和卷耳的影响。来自He-Ne激光器的探测光束穿过植物叶片的附近，将其置于充满酸溶液的培养皿中。监测探针束的偏转信号，并比较具有不同pH值的酸溶液。实验结果表明，在pH值为2.0和3.0的酸性溶液中，偏转信号变化较大，而在pH值为4.0和5.0的酸性溶液中，偏转信号变化较小。在pH值小于3.0时，铈的偏转信号随时间变化较大。经过一段时间后，偏转信号随时间变化不大。当pH值大于4.0时，即使在20小时后，角藻的偏转信号仍随时间变化。结果表明，无论是陆生植物还是水生植物，pH值的伤害阈值都在3.0 ~ 4.0之间。
The optical beam deflection method was applied to study the effects of acid solution on both a terrestial and aquatic plantsEgeriaandCerastium, which are common aquatic plant and terrestial weed respectively. A probe beam from a He-Ne laser was passed through a vicinity of a leaf of the plants, which were put in culture dishes filled with acid solutions. Deflection signals of the probe beam were monitored and compared for acid solutions with different pH values. The results ofEgriashowed that the deflection signals changed dramatically when pH values of acid solutions were 2.0 and 3.0, while little at pH of 4.0 and 5.0. ForCerastiumwhen pH were below 3.0, deflection signals changed greatly with time at the begining. After a certain period of time, deflection signals changed little with time. When pH value was above 4.0, deflection signals ofCerastiumwere still changing with time even after 20 hours. The results suggested that the damage threshold of pH was between 3.0 and 4.0 for both the land and aquatic plants.