Journal of Microbiology

Il-Gyu Lee

2 Articles

Phylogenetic Analysis of Mycobacterium sp. C2-3 Degrading Polycyclic Aromatic Hydrocarbons: Il-Gyu Lee , Suk-Kyun Han , You-Seak Go , Tae-Young Ahn; J. Microbiol. 2001;39(4):326-330.

Abstract PDF: Mycobacterium sp. C2-3 was isolated from petroleum-contaminated soil around an oil reservoir and identified by analysis of its 16S rRNA gene sequence. Strain C2-3 was able to use fluorene, phenanthrene, fluoranthene and pyrene as sole sources of carbon and energy, yet unable to degrade naphthalene. The strain was also able to use n-alkanes, such as hexadecane and heptadecane, and phenanthrene and pyrene, in particular, were degraded rapidly. The phylogenetic data suggested that the isolate C2-3 is a thermosensitive, fast-growing strain of Mycobacterium sp.

Inhibitory Effect of Nitrate on Fe(III) and Humic Acid Reduction in Shewanella putrefaciens DK-1: Il-Gyu Lee , Sang-Jin Kim , Tae-Young Ahn; J. Microbiol. 2000;38(3):180-182.

Abstract PDF: The inhibitory effects of nitrate on Fe(III) and humic acid reduction were examined in Shewanella putrefaciens DK-1. There is no difference in Fe(III) reduction until 25 hours between cultures using Fe(III) alone as an electron acceptor and using Fe(III) and nitrate as electron acceptors, but after 25 hours Fe(II) production was decreased drastically when Fe(II) and nitrate were used as electron acceptors. The production of AHQDS (2,6-anthrahydroquinon disulfonate) showed similar patterns when AQDS alone and both AQDS and Fe(III) were used as electron acceptors. When AQDS (2,6-anthraquinon disulfonate) and nitrate were used as electron accepors, the production of AHQDS was completely inhibited.

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