Läuchli A
Botanisches Institut der Universität Basel, Basel, Schweiz.
Planta. 1967 Sep;73(3):221-7. doi: 10.1007/BF00386679.
The X-ray microanalyzer makes possible a sensitive and localized detection of minerals in cryostat sections of freshfrozen plant tissues.The principles of the instrument and the different methods used to obtain information concerning the specimens are described.During our investigation of calcium and strontium transport to fruits and seeds, microcrystalline deposits of calcium-strontium phosphate were demonstrated in the sclerenchyma of the fruit stalk of Pisum sativum with the X-ray microanalyzer. The content of these ions in the xylem sap diminishes in the direction of the fruit. This finding is a possible explanation for the low calcium and strontium content in seeds.
X射线微量分析仪能够灵敏且定位检测新鲜冷冻植物组织低温切片中的矿物质。本文描述了该仪器的原理以及用于获取有关标本信息的不同方法。在我们对钙和锶向果实和种子运输的研究中，使用X射线微量分析仪在豌豆果柄的厚壁组织中发现了磷酸钙锶微晶沉积物。木质部汁液中这些离子的含量朝着果实方向减少。这一发现可能解释了种子中钙和锶含量较低的原因。
