Difference in selenite absorption between high- and low-selenium rice cultivars and its mechanism
文献类型：期刊论文
| 作者 | Zhang, Lianhe; Shi, Weiming; Wang, Xiaochang |
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2006-04-01 |
| 卷号 | 282期号:1-2页码:183-193 |
| 关键词 | absorption difference aquaporins cysteine synthase excised root selenite uptake mechanism |
| ISSN号 | 0032-079X |
| DOI | 10.1007/s11104-005-5706-6 |
| 通讯作者 | Shi, Weiming(wmshi@issas.ac.cn) |
| 英文摘要 | Two rice cultivars, Xiushui 48 and S. Andrea, with significant difference in selenium (Se) concentrations in brown rice grains, were chosen to study the Se absorption and its mechanism in excised roots. The results showed that the high-selenium cultivar Xiushui 48 absorbed higher amounts of Na2SeO3 than low-selenium S. Andrea at different Se levels and treatment periods. It was found that Na2SO3 markedly inhibited Na2SeO3 absorption by the excised roots of both cultivars. This inhibition might be due to the competition for uptake on the fact that Na2SO3 might share a common uptake pathway with Na2SeO3. Treatment with ZnCl2 significantly decreased Na2SeO3 absorption of both cultivars possibly by inhibiting the activity of cysteine synthase. It was therefore postulated that the difference in cysteine synthase activity might be one of the reasons which resulted in difference in selenite absorption possibly between the two cultivars. Both HgCl2 and AgNO3 treatments can inhibit selenite absorption by rice roots greatly. We propose that selenite enters rice roots through aquaporins as the form of H2SeO3. |
| 收录类别 | SCI |
| WOS关键词 | ASTRAGALUS ROOTS ; BARLEY ROOTS ; TRANSPORT ; SELENATE ; SEEDLINGS ; PLANTS ; CYSTEINE ; VOLATILIZATION ; SELENOCYSTEINE ; ACCUMULATION |
| WOS研究方向 | Agriculture ; Plant Sciences |
| WOS类目 | Agronomy ; Plant Sciences ; Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000238501700015 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558570 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Shi, Weiming |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China 2.Zhejiang Univ, Dept Tea Sci, Hangzhou 310029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Lianhe,Shi, Weiming,Wang, Xiaochang. Difference in selenite absorption between high- and low-selenium rice cultivars and its mechanism[J]. PLANT AND SOIL,2006,282(1-2):183-193. |
| APA | Zhang, Lianhe,Shi, Weiming,&Wang, Xiaochang.(2006).Difference in selenite absorption between high- and low-selenium rice cultivars and its mechanism.PLANT AND SOIL,282(1-2),183-193. |
| MLA | Zhang, Lianhe,et al."Difference in selenite absorption between high- and low-selenium rice cultivars and its mechanism".PLANT AND SOIL 282.1-2(2006):183-193. |
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来源：南京土壤研究所
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