%0 Journal Article
%T Changes of Ca2+ Distribution in Root Apical Meristematic Cells of Wheat under Cadmium Stress<br>镉胁迫下小麦根尖分生细胞中Ca2+分布的变化
%A HE Yu-Qing
%A WANG Bing-Rui
%A WANG Jian-Bo
%A <br>何宇清
%A 王炳锐
%A 王建波
%J 植物科学学报
%D 2002
%I 
%X Changes of Ca 2+ distribution in root apical meristematic cells of wheat under cadmium stress were observed with electron microscopic-cytochemical method.When the roots grew in non-cadmium environment,it was shown that the calcium antimonates distributed in cytoplasm,nucleus and intercellular spaces,especially in the vacuoles of cytoplasm.When the roots grew in cadmium stressed environment,the amount of calcium antimonates in cytoplasm decreased,while the amount of calcium antimonates in the nucleus,between plasma membrane and cell wall,and in cell wall increased.Moreover,the cells vacuolizated,and there were some calcium antimonates in vacuoles.These results indicated that cadmium could disturb cellular metabolism by disrupting Ca 2+ homeostasis and affect the growth of roots.
%K Wheat
%K Root apical meristematic cell
%K Cadmium stress
%K Ca
%K 2+ distribution<br>镉胁迫
%K 小麦
%K 根尖分生细胞
%K Ca^2＋分布
%K 毒害机理
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=9973DE552EA54506F7AABD4780345ED2&aid=D8AD239DDCB7EE8E&yid=C3ACC247184A22C1&vid=A04140E723CB732E&iid=B31275AF3241DB2D&sid=84A93BA251D28205&eid=5335AD3CFE6E14EA&journal_id=1000-470X&journal_name=武汉植物学研究&referenced_num=5&reference_num=19