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Impact of aerosols and atmospheric particles on plant leaf proteins

机译:气溶胶和大气颗粒对植物叶片蛋白质的影响

摘要

Aerosols and atmospheric particles can diffuse and absorb solar radiation, and directly affect plant photosynthesis and related protein expression. In this study, for the first time, we performed an extensive investigation of the effects of aerosols and atmospheric particles on plant leaf proteins by combining Geographic Information System and proteomic approaches. Data on particles with diameters of 0.1-1.0μm (PM1) from different locations across the city of Beijing and the aerosol optical depth (AOD) over the past 6 years (2007-2012) were collected. In order to make the study more reliable, we segregated the influence of soil pollution by measuring the heavy metal content. On the basis of AOD and PM1, two regions corresponding to strong and weak diffuse solar radiations were selected for analyzing the changes in the expression of plant proteins. Our results demonstrated that in areas with strong diffuse solar radiations, plant ribulose bisphosphate carboxylase was expressed at higher levels, but oxygen evolved in enhancer protein and light-harvesting complex II protein were expressed at lower levels. The expression of ATP synthase subunit beta and chlorophyll a-b binding protein were similar in both regions. By analyzing the changes in the expression of these leaf proteins and their functions, we conclude that aerosols and atmospheric particles stimulate plant photosynthesis facilitated by diffuse solar radiations.
机译:气溶胶和大气颗粒可以扩散和吸收太阳辐射,并直接影响植物的光合作用和相关的蛋白质表达。在这项研究中,我们首次结合了地理信息系统和蛋白质组学方法,对气溶胶和大气颗粒对植物叶片蛋白质的影响进行了广泛的研究。收集了过去6年(2007年至2012年)北京市不同地区的直径为0.1-1.0μm(PM1)的颗粒和气溶胶光学深度(AOD)的数据。为了使研究更可靠,我们通过测量重金属含量隔离了土壤污染的影响。在AOD和PM1的基础上,选择了与强和弱散射太阳辐射相对应的两个区域来分析植物蛋白表达的变化。我们的结果表明,在具有强烈散射太阳辐射的区域中,植物核糖二磷酸羧化酶的表达水平较高,而增强子蛋白中析出的氧气和光捕获复合物II蛋白的表达水平较低。在两个区域中,ATP合酶亚基β和叶绿素a-b结合蛋白的表达相似。通过分析这些叶蛋白的表达及其功能的变化,我们得出结论,气溶胶和大气颗粒刺激了太阳光扩散促进植物的光合作用。

著录项

  • 作者

    Yan X; Shi WZ; Zhao WJ; Luo NN;

  • 作者单位
  • 年度 2014
  • 总页数
  • 原文格式 PDF
  • 正文语种 eng
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