Effect of Intercropping System and Piriformospora Indica Fungus on Biodegradation of Petroleum Hydrocarbons under Drought and Salinity Stress in a Pb and Cd Contaminated Soil

Journal of Human, Environment, and Health Promotion

article

Amir Hossein Baghaie¹ 

[1] Department of Soil Science, Arak Branch, Islamic Azad University

关键词: Diesel oil;    P.indica;    Salinity;    Drought;    Biodegradation;   

DOI  :  10.52547/jhehp.7.4.173

来源: Journal of Human Environment and Health Promotion

【 摘 要 】

Background: This research was conducted to evaluate the effect of Piriformospora indica (P.indica), drought, and soil salinity stress on diesel oil biodegradation in a soil that was polluted with Pb and Cd. Methods: Treatments consisted of corn inoculated with P.indica and white clover intercropping system under the salinity (3.1 and 6 dS/m) and drought (normal and intensive) stress which cultivated in the Pb and Cd polluted (naturally) soil which simultaneously contaminated with diesel oil at the rates of 0 and 4 % (W/W). After 10 weeks, plants were harvested and the diesel oil biodegradation in the soil was determined. In addition, the soil microbial activity, the APX and POX enzyme activates were measured. Results: Diesel oil biodegradation significantly increased in the soil under cultivation of plants inoculated with P.indica, while it significantly decreased under salinity and drought stress by 12.9 and 9.8%. However, the intercropping system had positive effects on increasing the soil microbial activity and biodegradation of diesel oil in the soil. Conclusion: Corn inoculation with P.indica significantly affected the biodegradation of diesel oil in the heavy metals and petroleum hydrocarbon polluted soil that is under salinity and drought stress.

【 授权许可】

Unknown