Difference in Selenium Accumulation in Shoots of Two Rice Cultivars

ZHANG Lian-He; SHI Wei-Ming; WANG Xiao-Chang

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Difference in Selenium Accumulation in Shoots of Two Rice Cultivars

机译：两个水稻品种芽中硒积累的差异

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Two japonica rice (Oryza sativa L.) cultivars, Xiushui 48 and S. Andrea, differing in their ability to accumulate Se in the grain (as high as a three-fold difference), were compared for selenium (Se) accumulation in their shoots when their growth media was supplied with different forms of Se. Results indicated that when treated with 0.25μmol L-1 Na2SeO3,Xiushui 48 accumulation of Se in the shoots was significantly more rapid (P ≤ 0.05) than S. Andrea, probably because of greater Se uptake and transport in Xiushui 48. Xiushui 48 rice seedlings had a higher shoot-Se accumulation rate and absorbed selenocysteine (Se-Cys) more rapidly than S. Andrea seedlings. However, when treated with Se as 0.25 μmol L-1 selenomethionine (Se-Met), the S. Andrea seedlings' accumulation rate was significantly greater (P ≤ 0.05) than that of Xiushui 48. Possibly, the high Se accumulation rate of Xiushui 48 seedling shoots compared to S. Andrea shoots was the result of a higher capacity of Xiushui 48 to transform selenite to organic Se compounds and a higher selenite uptake rate.

机译：比较了两个粳稻品种秀水48和安德里亚S.Andrea在水稻中积累硒的能力（差异高达三倍），比较了其茎中硒的富集情况。当他们的生长培养基供应不同形式的硒时。结果表明，当用0.25μmolL-1 Na2SeO3处理时，秀水48的芽中硒的积累比安德里亚S. Andrea快得多（P≤0.05），这可能是因为秀水48中硒的吸收和转运更大。与S. Andrea幼苗相比，幼苗的Se-Se积累速率更高，硒代半胱氨酸（Se-Cys）吸收更快。然而，当用硒作为0.25μmolL-1硒代蛋氨酸（Se-Met）处理时，安德里亚沙门氏菌幼苗的蓄积率明显高于秀水48（P≤0.05）。与S. Andrea苗相比，48苗苗是秀水48将亚硒酸盐转化为有机Se化合物的能力更高以及亚硒酸盐吸收率更高的结果。

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来源
《土壤圈（英文版）》 |2006年第5期|646-653|共8页
作者
ZHANG Lian-He; SHI Wei-Ming; WANG Xiao-Chang;
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作者单位

State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences,Nanjing 210008 (China);

Agricultural College, Henan University of Science and Technology, Luoyang 471003 (China);

State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences,Nanjing 210008 (China);

Department of Tea Science, Zhejiang University, Hangzhou 310029 (China);

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收录信息中国科学引文数据库(CSCD);
原文格式 PDF
正文语种 chi
中图分类农业基础科学;
关键词
rice cultivars; Se accumulation; selenite; transport; uptake rate;

机译：水稻硒硒转运吸收率;

Difference in Selenium Accumulation in Shoots of Two Rice Cultivars

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