Assessment And Impact Of Arsenic Contamination On Growth Of Nitrogen Fixing Bacteria

Abstract

Arsenic is a poison that causes a serious threat to humans and other organisms. Numerous living things, including humans, wildlife, and crops, were affected by the usage of these groundwater supplies for drinking and irrigation purposes.It is now commonly known that the plant rhizo microbes directly or indirectly is involved to plant fitness through the production of phytohormones, nutrient solubility, nitrogen (N2) fixation, establishment of phytopathogen biological control, and neutralization of metallic ion. Arsenic has a negative effect on nitrogen-fixing bacteria because it reduces there enzymatic activity, it also affects the root nodules result in reduced growth. The results showed that with the increase in concentration of arsenic there was a decrease in the growth of nitrogen-fixing bacteria.Furthermore, the increase in the concentration of arsenic the growth of roots and shoot slowed down.