Isolation, identification and characterization of A Fusarium lichenicola strain with high

Liliana Morales-Barrera, Christian Marie Contreras-Juárez, María Elena Sánchez-Pardo, Didier Sánchez-García, Gabriela Pineda-Camacho, Eliseo Cristiani-Urbina

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

A fungal strain with high Cr(VI) reduction potential was isolated from a heavy metal-contaminated soil by batch enrichment culture techniques. The isolated fungus was identified as Fusarium lichenicola by the D1/D2 domain sequence of its 28S rDNA gene. The Cr(VI) reduction process catalyzed by F. lichenicola was characterized in batch cultures conducted at initial Cr(VI) concentrations ranging from 0.56 to 3.63 mM. The fungus showed remarkable capacity to reduce very high concentrations of Cr(VI) (2.89 mM) completely, under aerobic conditions. The highest volumetric rate of Cr(VI) reduction was approximately 1 mg L-1 h-1 and it was attained at initial Cr(VI) concentrations ranging from 0.56 to 2.06 mM; however, at higher Cr(VI) concentrations, the volumetric rate decreased, probably due to Cr(VI) toxicity. The characteristics exhibited by this F. lichenicola strain make it potentially useful in biotechnological processes for remediation of Cr(VI)-laden wastewaters.

Original languageEnglish
Pages (from-to)1640-1647
Number of pages8
JournalFresenius Environmental Bulletin
Volume19
Issue number8 A
StatePublished - 2010

Keywords

  • Cr(VI) reduction
  • Filamentous fungus
  • Fusarium lichenicola
  • Hexavalent chromium [Cr(VI)]

Fingerprint

Dive into the research topics of 'Isolation, identification and characterization of A Fusarium lichenicola strain with high'. Together they form a unique fingerprint.

Cite this