Effects of exogenous calcium on cadmium accumulation in amaranth
文献类型：期刊论文
| 作者 | Xie, Hong2,3,4; Liao, Zisheng2,3,4; Li, Jun2,3,4; Yang, Yongqiang3,4 ; Chen, Fanrong3,4; Zhu, Runliang3,4; Xiang, Li1; Wu, Shijun3,4
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| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2023 |
| 卷号 | 326页码:138435 |
| 关键词 | SUBCELLULAR-DISTRIBUTION OXALATE CRYSTALS TOBACCO PLANTS CHEMICAL FORMS HEAVY-METALS TOLERANCE TOMATO L. CD CULTIVARS |
| ISSN号 | 0045-6535 |
| DOI | 10.1016/j.chemosphere.2023.138435 |
| 英文摘要 | Calcium oxalate (CaOx) crystals in plants act as a sink for excess Ca and play an essential role in detoxifying heavy metals (HMs). However, the mechanism and related influencing factors remain unclear. Amaranth (Amaranthus tricolor L.) is a common edible vegetable rich in CaOx and a potential Cd hyperaccumulation species. In this study, the hydroponic experiment was carried out to investigate the effect of exogenous Ca concentrations on Cd uptake by amaranth. The results showed that either insufficient or excess Ca supply inhibited amaranth growth, while the Cd bioconcentration factor (BCF) increased with Ca concentration. Meanwhile, the sequence extraction results demonstrated that Cd mainly accumulated as pectate and protein-bound species (NaCl extracted) in the root and stem, compared to pectate, protein, and phosphate-bound (acetic acid extractable) species in the leaf. Correlation analysis showed that the concentration of exogenous Ca was positively correlated with amaranth-produced CaOx crystals but negatively correlated with insoluble oxalate-bound Cd in the leaf. However, since the accumulated insoluble oxalate-bound Cd was relatively low, Cd detoxification via the CaOx pathway in amaranth is limited. ? 2023 Elsevier Ltd |
| WOS研究方向 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000974541600001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/80188]  |
| 专题 | 中国科学院矿物学与成矿学重点实验室 |
| 作者单位 | 1.Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing; 100700, China 2.University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing; 100049, China 3.CAS Center for Excellence in Deep Earth Science, 511 Kehua Street, Guangzhou; 510640, China 4.CAS Key Laboratory of Mineralogy and Metallogeny & Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, Guangzhou; 510640, China |
| 推荐引用方式 GB/T 7714 | Xie, Hong,Liao, Zisheng,Li, Jun,et al. Effects of exogenous calcium on cadmium accumulation in amaranth[J]. CHEMOSPHERE,2023,326:138435. |
| APA | Xie, Hong.,Liao, Zisheng.,Li, Jun.,Yang, Yongqiang.,Chen, Fanrong.,...&Wu, Shijun.(2023).Effects of exogenous calcium on cadmium accumulation in amaranth.CHEMOSPHERE,326,138435. |
| MLA | Xie, Hong,et al."Effects of exogenous calcium on cadmium accumulation in amaranth".CHEMOSPHERE 326(2023):138435. |
入库方式： OAI收割
来源：广州地球化学研究所
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