Mutagenicity and genotoxicity evaluation of textile industry wastewater using bacterial and plant bioassays

Abstract

Highlights XAD concentrated sample was more mutagenic than the liquid-liquid extracted samples. TA98 was the most responsive strain, indicating presence of frameshift mutagens in textile effluent. Cell damage was found to be maximum in case of pol A mutants (SOS defective mutants). The wastewater contained cytotoxic chemicals that resulted in reduction of mitotic index. The sample also induced chromosomal aberrations in the root meristematic cells of A. cepa .

Investigation of cytotoxicity potential of different extracts of Ziziphus mauritiana (Lam) leaf Allium cepa model

“…This may be due to presence of mitogenic agents which could act to overcome intracellular braking mechanisms that block cell cycle progression (mitostimulatory) or may be due to antioxidants present in Ziziphus mauritiana (Lam) extracts which have been reported by other research works to be present in the leave extracts [ 33 , 34 ]. Antioxidants have been shown to improve DNA repair as well as modulate toxicity in different independent studies [ 35 , 36 ].…”

Mutagenicity, genotoxicity and oxidative stress induced by pesticide industry wastewater using bacterial and plant bioassays

“…of revertant bacterial colonies in the samples while “c” is the number of revertant colonies in control. The mutagenic potential of the wastewater samples was calculated as described by Khan et al [8].…”

“…Many findings displayed that even very low level of pesticides cause natal defects [6]. Numerous scientific endeavours in the area of genotoxicity of wastewater suggested direct association with mutagenicity of pollutants into water bodies [7,8]. Several industrial wastewater effluents and sludges has shown high mutagenic potential [9,10].…”

Laccases as versatile enzymes: from industrial uses to novel applications

“…Dye‐derived products from textile processing are often carcinogenic and affect the biological and photosynthesis processes in the aquatic environment . Effluent treatment by laccases or LMS has been considered a green alternative for the degradation of dyes with diverse chemical structure, usually showing degradation yields of about 100% at mild reaction conditions (pH close to neutral and temperatures of 20 to 50 °C) .…”