Element interconnections in Lotus japonicus: A systematic study of the effects of element additions on different natural variants
Version of Record online: 28 JAN 2009
© 2009 Japanese Society of Soil Science and Plant Nutrition
Soil Science & Plant Nutrition
Volume 55, Issue 1, pages 91–101, February 2009
How to Cite
CHEN, Z., WATANABE, T., SHINANO, T., EZAWA, T., WASAKI, J., KIMURA, K., OSAKI, M. and ZHU, Y.-G. (2009), Element interconnections in Lotus japonicus: A systematic study of the effects of element additions on different natural variants. Soil Science & Plant Nutrition, 55: 91–101. doi: 10.1111/j.1747-0765.2008.00311.x
- Issue online: 28 JAN 2009
- Version of Record online: 28 JAN 2009
- Received 17 April 2008.; Accepted for publication 11 July 2008.
- element interactions;
- heavy metal;
- high-throughput cultivation method;
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.