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Assessment of microbial diversity and enumeration of metal tolerant autochthonous bacteria from tailings of magnesite and bauxite mines

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dc.contributor.authorNarayanan, Mathiyazhagan
dc.contributor.authorDevarajan, Natarajan
dc.contributor.authorHe, Zhixia
dc.contributor.authorKandasamy, Sabariswaran
dc.contributor.authorAshokkumar, Veeramuthu
dc.contributor.authorRathinam, Raja
dc.contributor.authorCarvalho, Isabel S.
dc.date.accessioned2021-06-24T11:36:04Z
dc.date.available2021-06-24T11:36:04Z
dc.date.issued2020
dc.description.abstractThe magnesite and bauxite mines are a major source for some minerals and metals. The tailings of these magnesite and bauxite mines contains massive amount of Mn. (3221.2 +/- 6.51 & 7102.8.4 +/- 10.24), Cd (40.95 +/- 2.12 & 892.86 +/- 8.48), Zn (951.08 +/- 4.31 &724.12 +/- 3.18), and Pb (425.8 +/- 5.21 & 812.13 +/- 9.19 mg Kg(-1)) with alkaline and acid pH respectively. In the microbial diversity analysis, the results 8 (Thiobacillus thiooxidans, Leptospirillum ferrooxidans, Acetobacter methanolicus, T. intermedius, Bacillus cereus, Sulfobacillus acidophilus, Methylobacterium sp, and Thiobacillus ferooxidans) and 12 (Serratia marcescens, Metalogenium symbioticum 1, Metallogenium symbioticum 2, Bacillus alcalophilus, Aminobacter sp, Naumaniella neustonica, Staphylococcus aureus 1, Methylbacillus sp, Pandoraea sputorum, Acenetobacter sp, S. aureus 2, Pseudomonas aeruginosa) bacteria species were isolated from bauxite and magnesite mine tailings. The fungus such as Rhizopus arrhizus, Mucor sp, Aspergillus niger and Penicillium sp were obtained in both acid and alkaline environment. Among this microbial diversity, P. sputorum and B. cereus (identified through 16S rDNA sequencing) were shown better resistance to these four metals for up to 250 mg L-1. The bacterial diversity indexes, concludes that there was least diverse among the three sites. The evenness/equitability index also conform lower level of variation among these sites. (C) 2019 Elsevier Ltd. All rights reserved.
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1016/j.matpr.2020.07.652
dc.identifier.issn2214-7853
dc.identifier.urihttp://hdl.handle.net/10400.1/16619
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectMicrobial diversity
dc.subjectMagnesite
dc.subjectBauxite
dc.subjectMetals
dc.subjectTolerance
dc.titleAssessment of microbial diversity and enumeration of metal tolerant autochthonous bacteria from tailings of magnesite and bauxite mines
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceAnna Univ, Syed Ammal Engn Coll, Ramanathapuram, INDIA
oaire.citation.endPage4401
oaire.citation.startPage4391
oaire.citation.titleMaterials Today-Proceedings
oaire.citation.titleInternational Conference on Nanotechnology - Ideas, Innovation and Industries
oaire.citation.volume33
person.familyNameRathinam
person.givenNameRaja
person.identifier.orcid0000-0002-8445-6034
person.identifier.ridM-8564-2013
person.identifier.scopus-author-id16029399900
rcaap.rightsrestrictedAccess
rcaap.typeconferenceObject
relation.isAuthorOfPublicationcf31fff2-143a-4f1f-ab45-7074ade0179b
relation.isAuthorOfPublication.latestForDiscoverycf31fff2-143a-4f1f-ab45-7074ade0179b

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