Genotoxicity evaluation of tannery effluent treated with newly isolated hexavalent chromium reducing Bacillus cereus

Kumari, Vineeta; Yadav, Ashutosh; Haq, Izharul; Kumar, Sumit; Bharagava, Ram Naresh; Singh, S. N.; Raj, Abhay

doi:10.1016/j.jenvman.2016.08.017

Cited by 124 publications

(28 citation statements)

References 27 publications

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“…However, compared to the controls, the root lengths of seedling were highest at 12.5% (v/v) and thereafter gradually decreased with increasing concentrations of treated wastewater (Table 3). Notable reduction in root length, and shoot length were observed at 75 and 100% wastewater concentrations, respectively, which might be due to the effect of high salts and phenolics and ROPs present in the treated wastewater (Kumari et al, 2016). Oliveira (2012) reported that the inhibition of seed germination percentage was associated with high TDS and Cr ion in wastewater causing the osmotic stress and toxicity in plants (Kasoobi, 2017).…”

Section: Phytotoxicity Of Tannery Wastewatermentioning

confidence: 99%

“…Benzoic acid, a well-known EDCs was detected in the tannery wastewater by GC-MS. It has been classified as a Group B2, a probable human carcinogen and highly toxic to aquatic organisms (Kumari et al, 2016;(USEPA, 2012). Benzene is known carcinogen was also observed and its presence in tannery wastewater might be associated with the use of phthalate and phenolics compounds in leather industries (Lyche et al, 2009;U.S.…”

Section: Residual Organic Pollutants (Rops) Present In Treated Tannermentioning

confidence: 99%

“…Chromosomal aberration (CA) analysis of the root tip cells of A. cepa is considered as an efficient test to investigate the genotoxic, clastogenic and aneugenic potential of chemical agents and industrial wastewaters. CA has been characterized by changes in either of chromosomes structure, which can occur both spontaneously and as well as result of the exposure to physical or chemical agents (Kumari et al, 2016;Papa et al, 2016). Various types of chromosomal aberrations are considered over the four stages of the cell cycle (prophase, metaphase, anaphase, and telophase) as depicted in Table 5 and Fig.…”

Section: Chromosomal Aberrationsmentioning

confidence: 99%

“…However, it is also a major source of environmental pollution due to the discharge of huge volume of potentially toxic and hazardous wastewater into the receiving water body, which negatively affect societies (Dixit et al, 2015;Montalvão et al, 2017;Chowdhary et al, 2018). The wastewater discharged from leather industries are characterized by high pH, chemical oxygen demand (COD), biochemical oxygen demand (BOD), total dissolved solids (TDS), chromium, sulfate, phosphate, chloride and highly toxic organic pollutants that makes the wastewater unfit for irrigation and poses serious damage to plants and human being (Kumari et al, 2016;Bharagava and Mishra, 2018). In India, there are more than 2500 tanneries, of these, nearly 80% are based on chrome tanning process which account for 15% of the total worldwide leather production (Shukla et al, 2009;Chandra et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Phytotoxicity, cytotoxicity and genotoxicity evaluation of organic and inorganic pollutants rich tannery wastewater from a Common Effluent Treatment Plant (CETP) in Unnao district, India using Vigna radiata and Allium cepa

et al. 2019

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Section: Phytotoxicity Of Tannery Wastewatermentioning

confidence: 99%

Section: Residual Organic Pollutants (Rops) Present In Treated Tannermentioning

confidence: 99%

Section: Chromosomal Aberrationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Phytotoxicity, cytotoxicity and genotoxicity evaluation of organic and inorganic pollutants rich tannery wastewater from a Common Effluent Treatment Plant (CETP) in Unnao district, India using Vigna radiata and Allium cepa

et al. 2019

Self Cite

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“…Many national and international studies have focused on genotoxicity evaluation of industrial wastewater in different test models (Hemavanthi et al, 2015; Kumari et al, 2016). We selected the A. cepa assay due to its sensitivity and effectiveness in assessing effluent pollutants.…”

Section: Discussionmentioning

confidence: 99%

Detection of Androgenic-Mutagenic Compounds and Potential Autochthonous Bacterial Communities during In Situ Bioremediation of Post-methanated Distillery Sludge

Chandra

Kumar

2017

Front. Microbiol.

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Sugarcane-molasses-based post-methanated distillery waste is well known for its toxicity, causing adverse effects on aquatic flora and fauna. Here, it has been demonstrated that there is an abundant mixture of androgenic and mutagenic compounds both in distillery sludge and leachate. Gas chromatography-mass spectrometry (GC-MS) analysis showed dodecanoic acid, octadecanoic acid, n-pentadecanoic acid, hexadecanoic acid, β-sitosterol, stigmasterol, β-sitosterol trimethyl ether, heptacosane, dotriacontane, lanosta-8, 24-dien-3-one, 1-methylene-3-methyl butanol, 1-phenyl-1-propanol, 5-methyl-2-(1-methylethyl) cyclohexanol, and 2-ethylthio-10-hydroxy-9-methoxy-1,4 anthraquinone as major organic pollutants along with heavy metals (all mg kg-1): Fe (2403), Zn (210.15), Mn (126.30, Cu (73.62), Cr (21.825), Pb (16.33) and Ni (13.425). In a simultaneous analysis of bacterial communities using the restriction fragment length polymorphism (RFLP) method the dominance of Bacillus sp. followed by Enterococcus sp. as autochthonous bacterial communities growing in this extremely toxic environment was shown, indicating a primary community for bioremediation. A toxicity evaluation showed a reduction of toxicity in degraded samples of sludge and leachate, confirming the role of autochthonous bacterial communities in the bioremediation of distillery waste in situ.

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The Fate of Lead (Pb) in Multitrophic Interactions Among Bacteria, Fungi, and Bacterivorous Soil Nematodes

Iqbal

Ahmed

Pervez

et al. 2020

CLEAN Soil Air Water

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Contamination of potentially toxic metals poses threats to living organisms due to prolonged existence in an ecosystem. The effects of toxic metals on soil microbes have broadly been reported but the study on interactions among soil micro‐ and macro‐organisms under metal stress needs to be elaborated. In current study, the immobilization of lead (Pb) is investigated by using five resistant microbial strains; (2) Bacillus cereus, (1) Bacillus subtilis, (1) Brevundimonas naejangsanensis, and (1) fungal strain Fusarium equiseti isolated from contaminated soil of Hattar, Pakistan. Bacterial and fungal strains and their consortia are tested in the presence/absence of nematodes for Pb immobilization in a medium containing 250 mg L−1 Pb. Single bacterial strains immobilize Pb up to 72%, while in the presence of nematodes, bacterial immobilization potential decreases. An increased Pb immobilization up to 185 mg L−1 is found when bacterial and fungal consortia are inoculated with nematodes. The maximum 80% Pb immobilization is found in bacterial–bacterial combinations with nematodes. This study, reveals that inoculation of bacterial–bacterial consortia in the presence of nematodes enhanced bacterial growth via feeding resulting in higher Pb immobilization. These resistant microbial strains can thus be used to treat contaminated sites for better ecosystem functioning.

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Genotoxicity evaluation of tannery effluent treated with newly isolated hexavalent chromium reducing Bacillus cereus

Cited by 124 publications

References 27 publications

Phytotoxicity, cytotoxicity and genotoxicity evaluation of organic and inorganic pollutants rich tannery wastewater from a Common Effluent Treatment Plant (CETP) in Unnao district, India using Vigna radiata and Allium cepa

Phytotoxicity, cytotoxicity and genotoxicity evaluation of organic and inorganic pollutants rich tannery wastewater from a Common Effluent Treatment Plant (CETP) in Unnao district, India using Vigna radiata and Allium cepa

Detection of Androgenic-Mutagenic Compounds and Potential Autochthonous Bacterial Communities during In Situ Bioremediation of Post-methanated Distillery Sludge

The Fate of Lead (Pb) in Multitrophic Interactions Among Bacteria, Fungi, and Bacterivorous Soil Nematodes

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