Muthik A. Guda1, Afyaa S. Nasir1, Azhar Sh. Younus1, Attyaf J. T. Altamimi1
1 Department of Environmental Sciences, Faculty of Sciences, Kufa University, Iraq.
Reported in this paper responses of Juncus Aschers. (Et Buch.)Adams (Juncus A.) plants antioxidant, The catalase (CAT), ascorbate peroxidase (APX), superoxide dismutase (SOD) and peroxidase activity (POD) as a scavenger of ROS for mitigating the environmental stress. The study was deal with monthly study of eighteen physico-chemical parameters during the period from January 2017 to June 2017, and 4 sites were selected from Baher Al-Najef Depression (BAND) at the Al-Najef Al-Ashraf city /Iraq , The results showed positive correlation between air and water temperature, and positive correlation between annual precipitation with DO, EC, TDS,TSS , SAL, HCO3=, CO3- , Cl-,SO4= and pH , While BOD,PO4= and NO3= showed negative correlation . During the sampling path, physical chemical factors were found to be much higher in second site compared to the other site. In the spring, the high concentration of pollutants from it in the winter. This led to high activity of antioxidant enzymes. Current experience has indicated that in a stressful conditions, (Juncus A.) Plants overcome stress by altering the activities of the stress enzyme, suggesting evidence of an adaptive mechanism to thrive in a stressful environment and the appropriateness of (Juncus A.) Of environmental condition (as indicators), especially under modified climatic conditions.