2025 : 3 : 11
Majid Rostami

Majid Rostami

Academic rank: Associate Professor
ORCID:
Education: PhD.
ScopusId:
HIndex:
Faculty: agriculture
Address: Postal Code: 65719-95863, Faculty of agriculture, Malayer University, Iran
Phone: +98-81-32355416

Research

Title
Improvement of the Rhizoremediation efficiency of PAHs contaminated soil under cysteine treatment along with modeling
Type
JournalPaper
Keywords
Rhizoremediation Cysteine Dehydrogenase enzyme Peroxidase enzyme Sensitivity analysis
Year
2021
Journal Environmental Nanotechnology, Monitoring and Management
DOI
Researchers Majid Rostami

Abstract

Polycyclic Aromatic Hydrocarbons (PAHs) are a group of pollutants with mutagenic and carcinogenic properties. This study aimed to assess the effects of cysteine on the growth and resistance of the Festuca plant against PAHs-induced stress. The experiment was designed in six different groups and included control, contaminated soil with pyrene (Py) and phenanthrene (Phe) (200, 300, and 400 mg kg−1), and supplementation with cysteine (100, 200 mg L-1), all with or without the cultivation of Festuca grass. During the two 45- and 90-day periods, changes in the population of bacteria, the activity of soil enzymes: dehydrogenase (DHA) and peroxidase (POD), and the level of pyrene and phenanthrene removal were investigated. Furthermore, the Response Surface Methodology (RSM) model was also applied to determine the relationships between input and response parameters. Then, using the sensitivity analysis by Monte Carlo simulation, the effect of the examined parameters on the response parameters was determined. The results demonstrated that cysteine supplementation, along with Festuca cultivation, increased the number of bacteria, improved the activity of enzymes, and elevated the elimination of PAHs (p-value < 0.05).