TITLE:
Effects of Ce4+ on Membrane Integrity of Rice in Seedling Hydroponic Cultures
AUTHORS:
Qiuman Xu, Qianqian Zhao, Chaoyu Zhao, Hong Chen
KEYWORDS:
Ce4+, Membrane Integrity, Hydroponic Culture, Rice
JOURNAL NAME:
Agricultural Sciences,
Vol.5 No.9,
July
31,
2014
ABSTRACT: Rare earth elements have been extensively used as micro-fertilizers for
crops in China. Tounderstand the potential benefits or damages of Ce4+ on rice, the effects of Ce4+ on viability and membrane integrity of rice were investigated under
hydroponic cultures. It has been found that the cell viability,
electrical conductivity, pH changes, and concentration of malonyl dialdehyde did not change obviously when
the content of Ce4+ was 0.5 mg/L, but varied markedly when the contents of Ce4+ were raised
to 10 mg/L or more, indicating
that the Ce4+ at higher concentrations severely affected the cell
membrane permeability.