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<p>The environmental pollution is becoming a serious threat to inhabitants of World. It needs much attention to remediate the soil, air and water from these pollutants. The effects of crude oil contaminated soil (0,1.5&#xa0;g, 2.5&#xa0;g, 3.5&#xa0;g crude oil kg<sup>− 1</sup> soil) on wheat (<i>Triticum aestivum</i> L.) varieties (Anaj-2017 and FSD-2008) grown with or without soil bacterial inoculation (<i>Pseudomonas aeruginosa</i>,<i> Burkholderia phytofirmans</i> and <i>acinetobacter junii</i>) was examined in this study. Bacterial inoculation improved the physiological and biochemical attributes of both wheat varieties. Hydrocarbon stress caused a significant reduction in biomass accumulation, however, bacterial inoculation enhanced shoot and root fresh and dry weight. The excessive production of hydrogen peroxide (89% and 166%), and lipid peroxidation (43% and 142%) in leaves and roots respectively increased with the concentration of crude oil 1.5, 2.5 and 3.5&#xa0;mg kg<sup>− 1</sup>. The activities of antioxidants enzymatic i.e. superoxide dismutase (47% and 76%), Catalases (50% and 20%), peroxidases (155% and 136%), ascorbate peroxidase (49% and 51%) and non-enzymatic; ascorbic acid (36% and 33%), proline (193% and 330%) and α-Tocopherol (261% and 282%) in leaves and roots respectively were maximum at 3.5 mg g<sup>− 1</sup> crude oil concentration, however, bacterial inoculation reduced the activities of antioxidants considerably. Research demonstrated that various hydrocarbons concentrations considerably degrade photosynthetic pigments and resulting in higher Na<sup>+</sup> and lower K<sup>+</sup> uptake, however, Anaj-2017 demonstrated the highest hydrocarbon degradation (49.6%) with bacterial inoculation. The bacteria-mediated phytoremediation of hydrocarbon-contaminated soil indicates that the combined use of plants and bacteria offers a more effective strategy for the reclamation of crude oil contaminated soil than the use of vegetation alone. The study revealed that hydrocarbon contamination posed a significance effect on growth and yield of wheat while the plant-microbe interaction effectively ameliorated the toxicity of crude oil in contaminated soil.</p>

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The Role of Pseudomonas aeruginosa, Burkholderia phytofirmans and Acinetobacter junii in Phytoremediation of Crude Oil and Stimulation of Physio-Biochemical Activities of Wheat

  • 期刊论文

  • 发表日期：

    2025年1月21日

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  • Ume Ummara,
  • Farrukh Jaleel,
  • Faizan Ahmed,
  • Omar Mahmoud Al-Zoubi,
  • Sehrish Iqbal,
  • Nargis Naz,
  • Muhammad Afzal,
  • Suliman Mohammed Suliman Alghanem,
  • Modhi O. Alotaibi

摘要

The environmental pollution is becoming a serious threat to inhabitants of World. It needs much attention to remediate the soil, air and water from these pollutants. The effects of crude oil contaminated soil (0,1.5 g, 2.5 g, 3.5 g crude oil kg− 1 soil) on wheat (Triticum aestivum L.) varieties (Anaj-2017 and FSD-2008) grown with or without soil bacterial inoculation (Pseudomonas aeruginosa, Burkholderia phytofirmans and acinetobacter junii) was examined in this study. Bacterial inoculation improved the physiological and biochemical attributes of both wheat varieties. Hydrocarbon stress caused a significant reduction in biomass accumulation, however, bacterial inoculation enhanced shoot and root fresh and dry weight. The excessive production of hydrogen peroxide (89% and 166%), and lipid peroxidation (43% and 142%) in leaves and roots respectively increased with the concentration of crude oil 1.5, 2.5 and 3.5 mg kg− 1. The activities of antioxidants enzymatic i.e. superoxide dismutase (47% and 76%), Catalases (50% and 20%), peroxidases (155% and 136%), ascorbate peroxidase (49% and 51%) and non-enzymatic; ascorbic acid (36% and 33%), proline (193% and 330%) and α-Tocopherol (261% and 282%) in leaves and roots respectively were maximum at 3.5 mg g− 1 crude oil concentration, however, bacterial inoculation reduced the activities of antioxidants considerably. Research demonstrated that various hydrocarbons concentrations considerably degrade photosynthetic pigments and resulting in higher Na+ and lower K+ uptake, however, Anaj-2017 demonstrated the highest hydrocarbon degradation (49.6%) with bacterial inoculation. The bacteria-mediated phytoremediation of hydrocarbon-contaminated soil indicates that the combined use of plants and bacteria offers a more effective strategy for the reclamation of crude oil contaminated soil than the use of vegetation alone. The study revealed that hydrocarbon contamination posed a significance effect on growth and yield of wheat while the plant-microbe interaction effectively ameliorated the toxicity of crude oil in contaminated soil.