华北农学报 ›› 2015, Vol. 30 ›› Issue (5): 232-238. doi: 10.7668/hbnxb.2015.05.036

所属专题: 盐碱胁迫

• 论文 • 上一篇    

硫硒钨对钼酸盐吸收及钼酸盐转运子的影响

秦世玉, 孙学成, 胡承孝, 谭启玲   

  1. 华中农业大学 资源与环境学院, 微量元素研究中心, 湖北 武汉 430070
  • 收稿日期:2015-07-22 出版日期:2015-10-28
  • 通讯作者: 孙学成(1974-),男,湖北房县人,副教授,博士,主要从事植物微量元素营养研究。
  • 作者简介:秦世玉(1988-),男,河南新乡人,博士,主要从事植物营养机理方面的研究。
  • 基金资助:
    “十二五”国家科技支撑计划课题(2014BAD14B02)

Sulfur-selenium-tungsten Compete the Molybdate Uptake by Modifying the Gene Expression of Predicted Molybdate Transporters

QIN Shi-yu, SUN Xue-cheng, HU Cheng-xiao, TAN Qi-ling   

  1. College of Resources and Environment, Microelements Research Centre of Huazhong Agricultural University, Wuhan 430070, China
  • Received:2015-07-22 Published:2015-10-28

摘要: 为研究硫酸盐、硒酸盐和钨酸盐对甘蓝型油菜钼吸收及钼转运子的影响,通过溶液培养试验,研究了不同竞争离子对甘蓝型油菜生长及钼含量的影响及对预测钼酸盐转运基因表达的影响。结果表明,缺硫处理显著降低单株干物质重和地上部硫含量,同时提高了地上部和地下部钼含量。施硒处理对钼含量影响不大,施钨处理显著降低了钼含量,说明钨对钼吸收具有更高的抑制作用。同时发现,缺钼处理对硫含量没有显著影响。另外,通过测定拟南芥 MOT1 MOT2 同源基因在甘蓝型油菜中表达可以看出,相对于 Bol001439 Bal035189,基因 Bra007781 Bol020963 Bra011159 整体在地上部和地下部都具有较高的表达水平。 Bra007781 Bol020963 Bra011159 主要在地上部表达。 Bol001439和Bal035189 具有较低的表达,但是缺钼显著影响了根部表达。相对于+Se,+W处理对 BnMOT1s 表达量具有较高的影响,对 BnMOT2s 具有低的影响。推测 Bra007781、Bol001439 是钼高亲和转运子, Bol020963 Bra011159 是钼低亲和转运子, Bra035189 不参与钼转运,而 ST5; 1 是一个硫酸盐和钼酸盐共转运子。通过竞争离子对油菜钼营养进行研究且首次对甘蓝型油菜上钼酸盐转运基因进行推测。

关键词: 钼, 同源基因, 硫酸盐, 硒酸盐, 钨酸盐, 甘蓝型油菜

Abstract: Our objective was to explore the effects of sulfur (S),selenium (Se),and tungsten (W) application on growth and molybdenum (Mo) concentrations of oilseed rape and predicted molybdate transporter gene expression were analyzed using hydroponics.The dry weight and shoot S concentration were decreased with S-deficiency,but the Mo concentration was increased slightly.However,the Mo concentration showed no effect with supplied Se,while the Mo level showed lower Mo levels with W treatment.The S concentration was not affect by Mo deficiency.In addition,expression levels of Arabidopsis thaliana MOT1 and MOT2 homologous genes in all treatments were reported and indicate Bra007781, Bol020963,and Bra011159 had a higher expression levels than Bol001439 and Bal035189 in both shoot and root.And the Bra007781, Bol020963,and Bra011159 gene were expressed mainly in shoot. Bol001439 and Bal035189 were poorly expressed except root under Mo-deficient conditions. Bra007781 and Bol001439 were peculated the high-affinity molybdate transporter,and Bol020963 and Bra011159 were peculated the low-affinity molybdate transporter. Bra035189 was not taken into transport process. ST5 ; 1 was speculated a co-transporter in sulfate and molybdate transporter.In conclusion,competing ions (S,Se,and W) application had a marked impact on Mo distribution and accumulation,which was the first investigation of effect of S,Se,and W on Mo transporter homologous genes expression of rapeseed.

Key words: Molybdenum, Homologous genes, Sulfur, Selenium, Tungsten, Brassica napus

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引用本文

秦世玉, 孙学成, 胡承孝, 谭启玲. 硫硒钨对钼酸盐吸收及钼酸盐转运子的影响[J]. 华北农学报, 2015, 30(5): 232-238. doi: 10.7668/hbnxb.2015.05.036.

QIN Shi-yu, SUN Xue-cheng, HU Cheng-xiao, TAN Qi-ling. Sulfur-selenium-tungsten Compete the Molybdate Uptake by Modifying the Gene Expression of Predicted Molybdate Transporters[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2015, 30(5): 232-238. doi: 10.7668/hbnxb.2015.05.036.

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