Absorption, translocation and ultimate fate of lithium in the wheat plant
Absorption, translocation and ultimate fate of lithium in the wheat plant
复制标题
DOI：
10.1111/j.1469-8137.1941.tb07051.x
复制
发表时间：
1941-01-01
期刊：
影响因子：
9.4
通讯作者：
KENT, N. L.
中科院分区：
文献类型：
--
作者：
KENT, N. L.
本文研究了小麦幼苗对锂的吸收和转运。1叶期的幼苗用21/2%LiCl溶液处理，10毫升每4英寸盆栽，并在3、10、27或35天后取样。在3天或10天将一些组移植到未锂化的土壤中。Li是通过Ramage火焰法的修改通过光谱法估计的。李最初主要储存在根中。后来，它主要积累在最老的叶子中：浓度，第1叶35天为71.2mg. 100克。新鲜的结果表明，Li储存在最老的叶子是固定的，不能转移。在这方面，Li与Ca比与其他碱金属元素更相似。当土壤和植物之间的Li梯度方向被逆转时（通过将锂化植物重新种植在未处理的土壤中），Li从根部迅速流失到土壤中，这表明Li进出植物的运动至少部分取决于Li梯度的方向。|| 摘要：N. L.肯特
A study has been made of the absorption and translocation of Li by wheat seedlings. Seedlings at the 1-leaf stage were treated with 21/2% LiCl soln., 10 cc. per 4-in. pot, and sampled 3, 10, 27 or 35 days later. Some sets were transplanted to unlithiated soil at 3 or 10 days. Li was estimated spectrographically by a modification of the Ramage flame method. Li was at first stored chiefly in the root. Later it was accumulated mainly in the oldest leaves: the conc., in the 1st leaf at 35 days was 71.2 mg./100 g. fresh. Results suggest that Li stored in the oldest leaves is immobile and cannot be translocated. In this respect Li bears more resemblance to Ca than to the other alkali elements. When the direction of the Li gradient between soil and plant was reversed (by repotting lithiated plants in untreated soil) Li was rapidly lost from the roots to the soil, suggesting that movement of Li into and out of the plant depends[long dash]in part at least[long dash]on the direction of the Li gradient. || ABSTRACT AUTHORS: N. L. Kent