Element interconnections in Lotus japonicus: A systematic study of the effects of element additions on different natural variants
Element interconnections in Lotus japonicus: A systematic study of the effects of element additions on different natural variants
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DOI：
10.1111/j.1747-0765.2008.00311.x
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发表时间：
2009-02-01
影响因子：
2
通讯作者：
Zhu, Yong-Guan
中科院分区：
文献类型：
--
作者：
Chen, Zheng;Watanabe, Toshihiro;Zhu, Yong-Guan
利用莲花研究植物组织中 15 种元素的分布和相互关系，包括必需元素和非必需元素：硼 (B)、钠 (Na)、镁 (Mg)、钾 (K)、钙 (Ca)、锰 (Mn)、铁 (Fe)、镍 (Ni)、铜 (Cu)、锌 (Zn)、砷 (As)、锶 (Sr)、钼 (Mo)、镉(Cd) 和铯 (Cs)。大量的B和Ca在植物叶片中积累，而Fe、Na、Ni、As和Cd主要存在于根中，Mo是唯一在茎中积累的元素。有毒元素处理严重扰乱了植物内的元素组成。未发现同一组中元素对（例如 K 和 Cs；Ca 和 Sr）之间的竞争。添加 Cd 和 Ni 会诱导铁、Cu 和 Zn 的积累。当天然变体在 As、Cd、Cs、Ni、Mo 和 Sr 的亚毒水平营养液中生长时，使用主成分分析揭示了元素（例如 Fe、As 和 K；Mg 和 Ni；Mn 和 Ca）之间有趣的关系。这项关于植物离子组的研究提供了元素相互作用的详细信息，并表明化学上不同的元素可能在吸收或易位系统中紧密相连。
Lotus japonicus was used to study the distribution and interconnections of 15 elements in plant tissues, including essential and non-essential elements: boron (B), sodium (Na), magnesium (Mg), potassium (K), calcium (Ca), manganese (Mn), iron (Fe), nickel (Ni), copper (Cu), zinc (Zn), arsenic (As), strontium (Sr), molybdenum (Mo), cadmium (Cd) and cesium (Cs). Large amounts of B and Ca accumulated in plant leaves, while Fe, Na, Ni, As and Cd tended to mainly occur in the roots, and Mo was the only element to accumulate in the stems. The elemental compositions within plants were severely disturbed by treatment with toxic elements. Competition between element pairs in the same group (e.g. K and Cs; Ca and Sr) was not found. Iron, Cu and Zn accumulation were induced by Cd and Ni addition. When natural variants grew in a nutrition solution with subtoxic levels of As, Cd, Cs, Ni, Mo and Sr, intriguing relationships between the elements (such as Fe, As and K; Mg and Ni; Mn and Ca) were revealed using principal-component analysis. This study on the plant ionome offers detailed information of element interactions and indicates that chemically different elements might be closely linked in uptake or translocation systems.