湖北渔塘坝硒矿区发现超富集硒植物
A NEW SPECIES OF SELENIUM HYPERACCUMULATOR IDENTIFIED IN YUTANGBA SE DEPOSIT AREA
查看参考文献16篇
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文摘
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通过野外调查在渔塘坝硒矿区首次发现了一种新的硒超富集植物-遏蓝菜（Thlaspi arvense L．）。调查结果发现，在自然生长条件下，一年生遏蓝菜叶子中富集硒可高达1427mg／kg，生物富集硒系数可高达68，地上部硒含量最低也超过了500mg／kg，生物富集硒系数最低也超过了10，表现为叶〉根〉叶柄的硒富集特征。多年生遏蓝菜叶、茎和根的硒含量分别为104～163；231～346；444～459mg／奴，生物富集硒系数为2．6～12．4，均大于1，显示出根〉茎〉叶的硒富集特征。尽管多年生遏蓝菜远没有一年生遏蓝菜的硒含量高，但远比一般植物硒含量高，达到了次生硒蓄积植物富集硒的水平，显示遏蓝菜植物可以超富集硒。渔塘坝遏蓝菜的发现将为研究硒在植物中的吸收、转化、富集机理以及提取有效抗癌有机硒化物和修复硒污染生态环境提供新的材料。 |
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其他语种文摘
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Through field survey, we discovered a new species of selenium （Se） hyperaccumulator-Thlaspi arvense L. in China for the first time. Our survey found that leaf of the annual Thlaspi arvense L. growing in Enshi, southwest Hubei, China, accumulates Se up to 1427 mg/kg with biomass enrichment coefficient （BFS） of Thlaspi arvense L. vs soil was from 10 to 68, with minimum concentration in frond of more than 500 mg/kg, The enrichment order of Se is leaf 〉 root 〉 leafstalk. For perennial Thlaspi arvense L., the concentrations of Se in leaf, stalk and root were 104 - 163 mg/kg;231 - 346 mg/kg;444- 459 mg/kg, respectively, with BFS values from 2.6 to 12.4, showing Se enriching order of root〉 leaf〉 leafstalk. The results indicate that Thlaspi anense L. identified in Enshi is Se hyperaccumulator found in China for the first time and a new species of plants hyperaccumulating Se in the world. This finding possess significance for understanding Se biochemistry in plants, developing anticarcinogenic Se compound for improved public health and the phytoremediation of Se- contaminated soil and water. |
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来源
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矿物学报
,2007,27(3/4):567-570 【核心库】
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关键词
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超富集植物
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Se
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遏蓝菜（Thlaspi
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anvense
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L．）
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湖北恩施
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地址
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1.
中国科学院地球化学研究所, 矿床地球化学国家重点实验室, 贵州, 贵阳, 550002
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中国科学院地球化学研究所, 环境地球化学国家重点实验室, 贵州, 贵阳, 550002
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湖北省恩施州妇幼保健医院, 湖北, 恩施, 445000
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贵州师范大学, 贵州, 贵阳, 550003
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-4734 |
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学科
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环境科学基础理论 |
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基金
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国家自然科学基金
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文献收藏号
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CSCD:3057135
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参考文献 共
16
共1页
|
|
1.
Beath O A. The occurrence of selenium and seleniferous vegetation in Wyoming:Ⅱ.eleniferious vegetation.
Wyoming Agric Expt Sta Bull,1937,21:29-64
|
CSCD被引
1
次
|
|
|
|
|
2.
Beath O A. The use of indicator plants on locating seleniferous areas in western United StatesⅠ.
General American Journal of Botany,1939,26:257-269
|
CSCD被引
2
次
|
|
|
|
|
3.
Beath O A. The use of indicator plants on locating seleniferous areas in western United StatesⅡ.
General American Journal of Botany,1939,26:296-315
|
CSCD被引
1
次
|
|
|
|
|
4.
Beath O A. The use of indicator plants on locating seleniferous areas in western United StatesⅢ.
General American Journal of Botany,1940,27:564-573
|
CSCD被引
1
次
|
|
|
|
|
5.
Schwartz D F. Selenium as an integral part of Factor 3 against dietary necrotic liver degeneration.
J Am Chem Soc,1957,79:3292-3293
|
CSCD被引
1
次
|
|
|
|
|
6.
Rotruch F T. Selenium biochemical role as a component of glutathione peroxidese.
Sicience,1973,179:588-590
|
CSCD被引
1
次
|
|
|
|
|
7.
Wortz M S. Effect of dietary selenium on the interaction between 2-acetylaminofluorene and rat liver DAN in vivo.
Cancer Res,1980,40:2670
|
CSCD被引
1
次
|
|
|
|
|
8.
徐辉碧. 硒的生物化学中的某些问题及鄂西硒资源的开发.
硒资源及其综合开发利用,1993:41-51
|
CSCD被引
1
次
|
|
|
|
|
9.
Jonnaladda S B. biavailability and metal speciation.
Comp Biochem Physiol,1993,106:585-595
|
CSCD被引
1
次
|
|
|
|
|
10.
毛大钧. 渔塘坝硒中毒的医学地理特征.
地方病通报,1997,12(2):59-61
|
CSCD被引
5
次
|
|
|
|
|
11.
邵树勋. 湖北恩施地区发现超富集硒植物.
矿物学报,2006,26(2):130
|
CSCD被引
1
次
|
|
|
|
|
12.
王洪发. 鄂西自治州硒矿成矿远景区、地质背景、控矿因素及找矿方向初探.
硒资源及其综合开发利用,1993:242-263
|
CSCD被引
2
次
|
|
|
|
|
13.
Yang Guang-qi. Endemic selenium intoxication of humans in China.
Am Clin Nutr,1983,37:872-881
|
CSCD被引
24
次
|
|
|
|
|
14.
Rosenfield I. Translocation of radioactive selenium in Astragalus bisulcatus.
Wyoming Agric Exp Sta Bull,1962,385:21-25
|
CSCD被引
1
次
|
|
|
|
|
15.
Bell P F. Contrasting selenate surfate interactions in selenium accumulating and nonaccumulating plant species.
Soil Sci Soc Am J,1992,56:1818-1824
|
CSCD被引
8
次
|
|
|
|
|
16.
Baker A J M. Heavy metal accumulation and tolerance in British poplations of the metallophyte Thiaspi caerulescens J.and C.Presl (Brassicaceae).
New Phytologist,1994,127:61-68
|
CSCD被引
98
次
|
|
|
|
|
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