Ionomic and transcriptomic analysis provides new insight into the distribution and transport of cadmium and arsenic in rice

文献类型： 外文期刊

第一作者： Feng, Xuemin

作者： Feng, Xuemin;Han, Lei;Liu, Yan;Zhang, Yajing;Wang, Ruigang;Guo, Junkang;Feng, Renwei;Xu, Yingming;Ding, Yongzhen;Zhang, Guilong;Feng, Xuemin;Han, Lei;Liu, Yan;Zhang, Yajing;Wang, Ruigang;Guo, Junkang;Feng, Renwei;Xu, Yingming;Ding, Yongzhen;Zhang, Guilong;Chao, Daiyin;Huang, Biyan

作者机构：

关键词： Cadmium and arsenic;Transport;Ionomic;Transcriptomic;Rice

期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：10.588； 五年影响因子：10.129 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： To identify the key barrier parts and relevant elements during Cd/As transport into brown rice, 16 elements were measured in 14 different parts of 21 rice genotypes; moreover, transcriptomic of different nodes was analyzed. Cd/As contents in root and nodes were significantly higher than those other parts. Node I had the highest Cd content among nodes, leading an increase in gene expressions involved in glycolytic and Cd detoxification. The Cu/Zn/Co distribution and transport to various parts was similar to that of Cd, and Fe/Sb distribution and transport to various parts was similar to that of As. Moreover, Cu/Zn/Co/Mg was correlated with Cd in root and nodes, as well as Fe with As. Besides, the ionomic profile showed the different parts of an organ were closely related, and the spatial distribution of different organs was consistent with the growth morphology of rice. Therefore, root and nodes are two key barriers to Cd/As transport into brown rice. Moreover, Node I has the highest Cd accumulation capacities among nodes. The ionomic profile reflects relationships among plant parts and correlations between the elements, suggesting that nodes are hubs for element distribution, as well as the correlation between Cd with Zn/Cu/Co/Mg, between Fe with As. (C) 2017 Published by Elsevier B.V.

分类号： TB1

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