Mycoremediation of heavy metals by Curvularia lunata from Buckingham Canal, Neelankarai, Chennai.

IF 4 3区 生物学 Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY
S Sugitha, P Vishnu Priya, Tadela Kavya Kanishka, A Duraimurugan, M Suganthi, K Ashok Kumar, M Jayanthi, R Durgadevi, C Ramprasath, G Abirami
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Abstract

The spread and mobilization of toxic heavy metals in the environment have increased to a harmful level in recent years as a result of the fast industrialization occurring all over the world to meet the demands of a rising population. This research aims to analyze and evaluate the mycoremediation abilities of fungal strains that exhibit tolerance to heavy metals, gathered from water samples at Buckingham Canal, Neelankarai, Chennai. Water samples were examined for heavy metal analysis, and the highest toxic heavy metals, Zn, Pb, Mn, Cu, and Cr, were recorded. Three fungal strains were isolated and named EBPL1000, EBPL1001, and EBPL1002 were selected by primary screening (100 ppm) for further studies. Out of three fungal isolates, EBPL1000 grew in all five heavy metal concentrations and showed 2100 ppm as the highest Maximum Tolerance Concentration toward Lead, 2000 ppm tolerance in Zinc and Manganese, 1700 ppm in Chromium, and 1500 ppm in copper, respectively. The fungal isolate EBPL1000 was identified as Curvularia lunata with 100% percentage identity and query coverage. The Biosorption result reveals that lead is the highest biosorbed heavy metal with 79.99% at 100 ppm concentration while copper is the lowest biosorbed with 24.11% heavy metal at 500 ppm concentration. The uptake of Manganese by Curvularia lunata biomass was the highest (5.64 mg/g) of all heavy metal's uptake at 100 ppm concentration. The lowest uptake of heavy metals was copper (0.43 mg/g) at 500 ppm concentration, and the growth profile study under heavy metals stress conditions shows the order of Pb > Mn > Zn > Cr > Cu at 60 h of time intervals at 100 ppm concentration. In addition to the research, FTIR analysis and Molecular Docking studies provide credence to the idea that Curvularia lunata has high biosorption potential and uptake or removal of toxic heavy metals at low cost and in an eco-friendly way from the contaminated environment.

金奈Neelankarai白金汉运河月形曲霉对重金属的微修复作用。
近年来,由于世界各地为满足不断增长的人口的需求而进行的快速工业化,有毒重金属在环境中的扩散和动员已经增加到有害的水平。本研究旨在分析和评估从金奈Neelankarai白金汉运河水样中收集的对重金属具有耐受性的真菌菌株的霉菌修复能力。对水样进行了重金属分析,并记录了最高毒性重金属锌、铅、锰、铜和铬。经初筛(100 ppm)筛选得到3株真菌,分别命名为EBPL1000、EBPL1001和EBPL1002。在3株真菌中,EBPL1000在5种重金属浓度下均能生长,对铅的最大耐受浓度为2100 ppm,对锌和锰的最大耐受浓度为2000 ppm,对铬的最大耐受浓度为1700 ppm,对铜的最大耐受浓度为1500 ppm。菌株EBPL1000鉴定为弯孢菌(Curvularia lunata),鉴定率和查询覆盖率均为100%。结果表明,在100 ppm浓度下,铅的生物吸附率最高,为79.99%;在500 ppm浓度下,铜的生物吸附率最低,为24.11%。在100 ppm浓度下,弯孢菊生物量对锰的吸收量最高(5.64 mg/g)。在500ppm浓度下,对重金属的吸收量最低的是铜(0.43 mg/g),在100ppm浓度下,每隔60 h,对重金属胁迫条件下的生长曲线研究显示:Pb > Mn > Zn > Cr > Cu。除此之外,FTIR分析和分子对接研究也证实了弯孢草具有较高的生物吸附潜力,能够以低成本和环保的方式从污染环境中吸收或去除有毒重金属。
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来源期刊
World journal of microbiology & biotechnology
World journal of microbiology & biotechnology 工程技术-生物工程与应用微生物
CiteScore
6.30
自引率
2.40%
发文量
257
审稿时长
2.5 months
期刊介绍: World Journal of Microbiology and Biotechnology publishes research papers and review articles on all aspects of Microbiology and Microbial Biotechnology. Since its foundation, the Journal has provided a forum for research work directed toward finding microbiological and biotechnological solutions to global problems. As many of these problems, including crop productivity, public health and waste management, have major impacts in the developing world, the Journal especially reports on advances for and from developing regions. Some topics are not within the scope of the Journal. Please do not submit your manuscript if it falls into one of the following categories: · Virology · Simple isolation of microbes from local sources · Simple descriptions of an environment or reports on a procedure · Veterinary, agricultural and clinical topics in which the main focus is not on a microorganism · Data reporting on host response to microbes · Optimization of a procedure · Description of the biological effects of not fully identified compounds or undefined extracts of natural origin · Data on not fully purified enzymes or procedures in which they are applied All articles published in the Journal are independently refereed.
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