| Autor: |
Ali, M. H., Khan, M. I., Naveed, M., Tanvir, M. A. |
| Předmět: |
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| Zdroj: |
International Journal of Environmental Science & Technology (IJEST); Mar2024, Vol. 21 Issue 3, p3169-3184, 16p |
| Abstrakt: |
Soil pollution by petroleum hydrocarbons (PHCs) is a serious environmental problem due to the relatively higher biotoxicity and persistence of PHCs in soil. The aim of current study was to prepare and characterize bacterial consortia for PHCs removal and plant growth enhancement in hydrocarbons contaminated soil. In this study, we isolated a number of microbes from PHCs contaminated sites and developed the bacterial consortia (BC). Subsequently, two of the developed bacterial consortia (BC1 and BC2) were used in pot experiments for their ability to remove PHCs and promote wheat plant growth in soil contaminated with PHCs. Results showed that PHCs had significant toxicity to wheat plant when grown in PHCs contaminated soil and causing 18–37% and 14–34% reductions in agronomic and physiological attributes of wheat plants, respectively. However, the phytotoxicity of PHCs to wheat plants were considerably decreased in the presence of BC, showing up to 32% and 27% higher agronomic and physiological attributes of wheat plants, respectively, as compared to un-inoculated controls with PHCs. Furthermore, the BC addition also improved nutrient uptake and antioxidant mechanism of wheat plants. Notably, only wheat plants could remediate 48% of the initial amount of PHCs and the addition of BC1 and BC2 in the planted pots further enhanced this removal and remediated 71% and 78% of PHCs, respectively. Our findings indicate that the application of multi-trait bacterial consortia for PHCs remediation and plant growth enhancement under PHCs stress could be an eco-friendly and efficient way to overcome the contamination and toxicity of PHCs. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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