Element interconnections in Lotus japonicus: A systematic study of the effects of element additions on different natural variants

Zheng Chen, Toshihiro Watanabe, Takuro Shinano*, Tatsuhiro Ezawa, Jun Wasaki, Kazuhiko Kimura, Mitsuru Osaki, Yong Guan Zhu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)91-101
Number of pages11
JournalSoil Science and Plant Nutrition
Volume55
Issue number1
DOIs
Publication statusPublished - Feb 2009
Externally publishedYes

Keywords

  • Element interactions
  • Heavy metal
  • High-throughput cultivation method
  • Ionome
  • Legume

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