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首页> 美国卫生研究院文献>Plants >Morpho-Physiological and Proteomic Analyses of Eucalyptus camaldulensis as a Bioremediator in Copper-Polluted Soil in Saudi Arabia
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Morpho-Physiological and Proteomic Analyses of Eucalyptus camaldulensis as a Bioremediator in Copper-Polluted Soil in Saudi Arabia

机译：沙地阿拉伯铜污染土壤中桉树桉生物形态生理生理和蛋白质组学分析

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The present investigation aimed to assess the impact of copper (Cu) stress on the physiological and proteomic behavior of Eucalyptus camaldulensis. E. camaldulensis is likely a potential phytoremediator in areas vulnerable to Cu contamination, such as the industrial areas of Riyadh. To realize this objective, young seedlings of E. camaldulensis were potted in an open area with soil comprised of clay and sand. Different doses of Cu (30, 50, and 100 µM) were applied to the plants as CuSO4·5H2O for 6 weeks. Plant growth was monitored during the Cu exposure period, and morphological and physiological indicators were measured once a week to determine the growth rates. A proteomics study was also conducted to find out the influence of Cu stress on proteins. Our results showed that growth was negatively affected by Cu treatment, particularly at the highest concentrations. Moreover, using a proteomic analysis showed 26 targets involved in protein expression. Elevated levels of Cu increased the expression of 11 proteins and decreased the expression of 15 proteins. Changes were detected in proteins involved in photosynthesis, translation, transcription, metabolism, and antioxidant enzymes. Our findings provided insights into the molecular mechanisms related to Cu stress, in addition to its influence on the morphological and physiological attributes of E. camaldulensis seedlings. This investigation aimed to characterize the mechanism behind the impact of Cu stress on the plant.
机译：本研究旨在评估铜（Cu）胁迫对桉树桉生理和蛋白质组学行为的影响。在易受铜污染的地区，例如利雅得工业区，卡马尔杜氏大肠杆菌可能是潜在的植物修复剂。为了实现该目标，将卡氏桉的年轻幼苗盆栽在具有由粘土和沙子组成的土壤的开放区域中。将不同剂量的Cu（30、50和100 µM）以CuSO4·5H2O的形式施用于植物6周。在铜暴露期间监测植物的生长，并每周测量一次形态和生理指标以确定生长速率。还进行了蛋白质组学研究，以了解铜胁迫对蛋白质的影响。我们的结果表明，生长受到铜处理的不利影响，特别是在最高浓度下。而且，使用蛋白质组学分析显示了26个与蛋白质表达有关的靶标。升高的Cu水平增加了11种蛋白的表达而降低了15种蛋白的表达。在涉及光合作用，翻译，转录，代谢和抗氧化酶的蛋白质中检测到变化。我们的发现提供了对与铜胁迫相关的分子机制的见识，此外，铜胁迫还对金缕梅幼苗的形态和生理特性产生了影响。这项研究旨在表征铜胁迫对植物的影响背后的机制。

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