TY - JOUR
T1 - Effects of lanthanum on calcium and magnesium contents and cytoplasmic streaming of internodal cells of Chara corallina
AU - Li, Zijie
AU - Zhang, Zhiyong
AU - Yu, Ming
AU - Zhou, Yunlong
AU - Zhao, Yuliang
N1 - Funding Information:
Acknowledgements This work was supported by National Natural Science Foundation of China (grant No. 10875136, 10905062, 11005118), the Knowledge Innovation Program of the Chinese Academy of Sciences (grant No. KJCX3.SYW.N3), and the Ministry of Science and Technology of China (grant No. 2011CB933404).
Copyright:
Copyright 2013 Elsevier B.V., All rights reserved.
PY - 2011/10
Y1 - 2011/10
N2 - Biological and environmental effects of lanthanide series of elements have received much attention recently due to their wide applications. In this study, effects of La3+ treatments on calcium and magnesium concentrations as well as cytoplasmic streaming of internodal cells of Chara corallina were investigated. At all treatment concentrations (10, 100, and 1,000 μM), La3+ significantly decreased calcium concentrations in the cell-wall fractions after 5-h treatments. Calcium concentrations in the cell contents and magnesium concentrations in the cell-wall fractions were reduced by 100 and 1,000 μM La3+ treatments. However, cytoplasmic streaming as an indicator of [Ca2+]cyt was only inhibited at the highest La3+ concentration (1,000 μM). The results suggest that La 3+ may affect cellular calcium homeostasis by actions other than as a simple Ca2+ antagonist. La3+ could partially compensate for calcium deficiency at certain concentrations.
AB - Biological and environmental effects of lanthanide series of elements have received much attention recently due to their wide applications. In this study, effects of La3+ treatments on calcium and magnesium concentrations as well as cytoplasmic streaming of internodal cells of Chara corallina were investigated. At all treatment concentrations (10, 100, and 1,000 μM), La3+ significantly decreased calcium concentrations in the cell-wall fractions after 5-h treatments. Calcium concentrations in the cell contents and magnesium concentrations in the cell-wall fractions were reduced by 100 and 1,000 μM La3+ treatments. However, cytoplasmic streaming as an indicator of [Ca2+]cyt was only inhibited at the highest La3+ concentration (1,000 μM). The results suggest that La 3+ may affect cellular calcium homeostasis by actions other than as a simple Ca2+ antagonist. La3+ could partially compensate for calcium deficiency at certain concentrations.
KW - Calcium
KW - Chara corallina
KW - Cytoplasmic streaming
KW - Lanthanum
KW - Magnesium
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U2 - 10.1007/s12011-010-8854-3
DO - 10.1007/s12011-010-8854-3
M3 - Article
C2 - 20862562
AN - SCOPUS:80054729054
SN - 0163-4984
VL - 143
SP - 555
EP - 561
JO - Biological Trace Element Research
JF - Biological Trace Element Research
IS - 1
ER -