Contribution of the flag leaf to lead absorption in wheat grain at the grain-filling stage
文献类型：期刊论文
| 作者 | Ma, Chuang2; Xie, Pan2; Zhang, Ke2; Yang, Junxing1 ; Li, Xuanzhen3; Liu, Fuyong2; Lin, Lin2; Zhang, Hongzhong2
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| 刊名 | ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
 |
| 出版日期 | 2021-12-01 |
| 卷号 | 225页码:10 |
| 关键词 | Wheat Flag leaf Grain Pb Atmospheric particles |
| ISSN号 | 0147-6513 |
| DOI | 10.1016/j.ecoenv.2021.112722 |
| 通讯作者 | Yang, Junxing(yangajx@igsnrr.ac.cn) |
| 英文摘要 | Wheat flag leaf (FL) is one of the primary sources of carbohydrates in grains; however, its role in grain lead (Pb) absorption remains unclear. A field experiment was conducted to assess the relative contribution of the FL to Pb accumulation in wheat grain by two contrasting treatments: without (CK) and with FL removal (FLR) at the grain-filling stage. The Pb concentration in leaves was closely related to leaf strata and decreased from FL to the third leaf. FLR treatment significantly reduced the yield and grain Pb concentration by 2.79% and 11.47%, respectively. The contribution of FL to grain Pb accumulation decreased gradually with the filling process, from 35.08% (at early stage) to 13.94% (at maturity stage). After FLR, the contribution proportion of atmospheric fallout to grain Pb decreased from 69.01% (CK) to 62.43% (FLR). Combined isotope analysis with scanning electron microscopy and energy-dispersive X-ray spectroscopy (SEM-EDS) revealed that the main contribution of FLs to grain Pb originated from Pb fallout in fine atmospheric particles. Therefore, taking measures to reduce the influence of fine atmospheric particles on wheat may be an effective way to control wheat grain Pb contamination. |
| WOS关键词 | TRITICUM-AESTIVUM L. ; FOLIAR UPTAKE ; HEAVY-METALS ; PB ; DETOXIFICATION ; TOXICITY ; CADMIUM ; LEAVES ; SOIL ; EAR |
| 资助项目 | Henan Province Key Research and Development and Promotion Projects[212102310063] ; National Natural Science Foundation of China[41501527] |
| WOS研究方向 | Environmental Sciences & Ecology ; Toxicology |
| 语种 | 英语 |
| WOS记录号 | WOS:000696957100004 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 资助机构 | Henan Province Key Research and Development and Promotion Projects ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/165591]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Yang, Junxing |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resource Res, Beijing 100101, Peoples R China 2.Zhengzhou Univ Light Ind, Henan Collaborat Innovat Ctr Environm Pollut Cont, Zhengzhou 45000, Peoples R China 3.Henan Agr Univ, Coll Forestry, Zhengzhou 450002, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Chuang,Xie, Pan,Zhang, Ke,et al. Contribution of the flag leaf to lead absorption in wheat grain at the grain-filling stage[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2021,225:10. |
| APA | Ma, Chuang.,Xie, Pan.,Zhang, Ke.,Yang, Junxing.,Li, Xuanzhen.,...&Zhang, Hongzhong.(2021).Contribution of the flag leaf to lead absorption in wheat grain at the grain-filling stage.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,225,10. |
| MLA | Ma, Chuang,et al."Contribution of the flag leaf to lead absorption in wheat grain at the grain-filling stage".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 225(2021):10. |
入库方式： OAI收割
来源：地理科学与资源研究所
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