Effect of Salicylic Acid and Root Inoculation with P. indica on Cd Phytoremediation Efficiency and Degradation of Soil Fuel Oil in the Salinity Stress
محل انتشار: نشریه بین المللی علوم بهداشت، دوره: 7، شماره: 1
سال انتشار: 1399
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 86
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شناسه ملی سند علمی:
JR_IAHS-7-1_005
تاریخ نمایه سازی: 28 تیر 1402
چکیده مقاله:
This study was done to investigate the effect of salicylic acid (SA) and root inoculation with Piriformospora indica on Cd
phytoremediation efficiency and degradation of soil fuel oil by sunflower in the salinity stress. Materials and Methods: Treatments consisted
of soil Cd pollution (۰ and ۵ mg Cd/kg soil), soil salinity adjusted at the EC equal to ۴ and ۶ dS/m, and soil pollution to fuel oil at the rates
of ۰%, ۴%, and ۸% (W/W). Foliar application of SA at the rates of ۰ and ۱.۵ mmol/l was done ۲ weeks after sunflower seedling growth in
the presence and absence of P. indica. After ۶۰ days, the plant was harvested and soil and plant Cd concentration was measured using atomic
absorption spectroscopy. Soil microbial activity and degradation of soil fuel oil were also determined according to the Besaltpour et al.
method. Results: The greatest shoot Cd concentration belonged to the saline soil (۶ dS/m) polluted with ۱۰ mg Cd/kg soil and polluted with
۸% (W/W) fuel oil, whereas the lowest was observed in the nonsaline soil polluted with ۵ mg Cd/kg soil. Increasing soil salinity from ۴ to
۶ dS/m significantly decreased the soil microbial respiration by ۸.۳%. Application of ۱.۵ mmol/l SA significantly increased the degradation
of soil fuel oil by ۱۱.۳%. Conclusion: The interaction effect of P. indica and SA had a significant effect on increasing the degradation of
soil fuel oil.
کلیدواژه ها:
نویسندگان
Amir Hossein Baghaie
Department of Soil Science, Arak Branch, Islamic Azad University, Arak, Iran
Amir Daliri
Department of Soil Science, Arak Branch, Islamic Azad University, Arak, Iran