6个水稻品种对Cr、As、Zn、Pb和Cu吸收积累的差异性 |
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引用本文: | 王小玲,刘腾云,幸学俊,高柱,李茜,余发新. 6个水稻品种对Cr、As、Zn、Pb和Cu吸收积累的差异性[J]. 江西农业大学学报, 2016, 0(6): 1009-1016. DOI: 10.13836/j.jjau.2016142 |
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作者姓名: | 王小玲 刘腾云 幸学俊 高柱 李茜 余发新 |
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作者单位: | 1. 江西省科学院 生物资源研究所,江西 南昌 330096; 江西省鄱阳湖重点实验室,江西 南昌 330096;2. 江西省科学院 生物资源研究所,江西 南昌,330096;3. 宁夏大学环境工程研究院,宁夏 银川,750021 |
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基金项目: | 江西省青年科学基金(20142BAB214007),江西省科学院协同创新专项(2013-XTPH1-05),江西省科学院“省部共建国家重点实验室培育基地”(赣科院字[2013]19号-04),江西省科学院省级重点实验室开放基金项目(2013-KLB-04) Project supported by Jiangxi Province Foundation for Youths(20142BAB214007),the Collaborative Innovation Spe-cial Funds of Jiangxi Academy of Sciences(2013-XTPH1-05),the “Province of State Key Laboratory Cultivation Base Construction” of Jiangxi Academy of Sciences(Gan[2013]19-04),Open Fund of Provincial Key Labora-tory of Jiangxi Academy of Sciences(2013-KLB-04) |
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摘 要: | 以6个水稻品种为研究对象,通过在复合污染土壤中进行盆栽试验,并采用ICP-MS、ICP-OES和原子荧光法,探讨不同水稻品种对重金属Cr、As、Zn、Pb、Cu元素富集能力的差异性,旨在筛选出对不同重金属元素低积累或高富集的水稻品种。结果表明,6个水稻品种对5种重金属元素吸收积累的能力是ZnPbCrCuAs;水稻根系重金属含量是地上部茎叶含量的1.23~43.76倍;株两优173、中早35、隆平006、陆两优996分别对重金属Cr、As、Zn、Cu元素的转运系数最小,可作为其低积累水尹稻品种进一步研究;金优463、Y两优85、陆两优996、Y两优85分别对重金属Cr、As、Zn、Cu元素的富集能力最强,可作为其高富集水稻品种进一步研究;隆平006根系和茎叶对重金属Pb元素的富集系数同时达到最大,转运系数却最小,因此其作为重金属Pb元素低积累还是高富集品种筛选有待进一步探索;植株生长的顺序是中早35﹥陆两优996﹥株两优173﹥隆平006﹥金优463﹥Y两优85,茎叶As和Cu含量是影响水稻植株生长的主要因素。本研究结果可为进一步研究低积累水稻品种的遗传机理差异性,以及在江西省不同地区实际推广应用和安全种植提供参考。
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关 键 词: | 水稻 重金属 富集 筛选 |
Differences in the Uptake and Accumulation of Cr,As,Zn,Pb and Cu from Soil Among Six Rice Cultivars |
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Abstract: | A series of pot cultivation experiments were carried out by ICP-MS,ICP-OES and atomic fluo-rescence spectrometry,to study the differences among six rice cultivars in accumulation of heavy metals ( Cr,As,Zn,Pb,Cu) among six rice cultivars,for screening out rice cultivars with lower accumulation or higher en-richment of heavy metals.The results showed that the falling sequence of their ability in the uptake and accu-mulation of 5 heavy metals was Zn>Pb>Cr>Cu>As;the contents of heavy metals in the root of rice were 1.23~43.76 times more than those in stem and leaves; Zhuliangyou-173, Zhongzao-35, Longping-006, Luliangyou-996 had respectively the minimum transference coefficient of Cr,As,Zn,Cu,thus they were their low-accumu-lation cultivars suitable for further study; Jinyou-463,Y Liangyou-85,Luliangyou-996 had respectively stron-gest enrichment ability of Cr,As,Zn,Cu,thus they were their high-enrichment cultivars suitable to take further study;Longping-006 had the maximum enrichment coefficient of Pb,both in roots and stems/leaves,but the minimum transference coefficient.Therefore,it was suitable for further research to determine whether it’s a low-accumulation cultivar of Pb or a high-enrichment cultivar.The falling sequence of rice plant growth was Zhong-zao-35>Luliangyou-996>Zhuliangyou-173>Longping-006>Jinyou-463>Y Liangyou-85. As and Cu contents of the stem and leaves were the main factors to affect their plant growth.The results of this study will provide ref-erences for further study on genetic mechanism differences of low-accumulation rice cultivars and their practi-cal field application and plant security in Jiangxi Province. |
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Keywords: | rice heavy mental enrichment screening |
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