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- Title
Degradation of Toxic Compounds at Low and Medium Temperature Conditions Using Isolated Fungus.
- Authors
Chang, Young‐Cheol; Fuzisawa, Soichiro; Reddy, Motakatla Venkateswar; Kobayashi, Hikari; Yoshida, Eri; Yajima, Yuka; Hoshino, Tamotsu; Choi, DuBok
- Abstract
In the present study, a fungal strain isolated from the Antarctic soil was identified as Penicillium sp. CHY-2 based on its 5.8S rRNA gene sequence analysis. Furthermore, its biodegradation ability towards 13 different toxic compounds such as 4-butylphenol (4-BP), 4- sec-butylphenol (4-s-BP), 4- tert-butylphenol (4-t-BP), 4-nonylphenol (4-NP), 4- tert-octylphenol (4-t-OP), 4-chlorophenol (4-CP), phenol, bisphenol A (BPA), benzene, toluene, xylene, naphthalene, and phenanthrene at low (4°C) and medium (15°C) temperature conditions was evaluated using high pressure liquid chromatography. Among the 13 compounds, the strain CHY-2 effectively degraded the six compounds i.e., 4-BP, 4-s-BP, 4-t-BP, 4-NP, 4-CP, and phenol at 15°C within one week, and at 4°C within 3 weeks. Also CHY-2 effectively degraded the 4-t-OP at 15°C (70%), but not at 4°C (35%). Among different carbon sources tested, glucose was found to be the most suitable and the growth of CHY-2 at 4°C was slower than at 15°C. Addition of Tween 80 increased the growth and degradation ability of CHY-2 towards 4-BP at 4 and 15°C. The metabolites produced during the degradation of 4-BP were identified by gas chromatography-mass spectrometry. Also, bacteria present in the Antarctic soil were determined by denaturing gradient gel electrophoresis and the result showed the presence of Pseudomonas and Syntrophus groups of bacteria.
- Subjects
SOIL degradation; BIODEGRADATION; FUNGI -- Environmental aspects; ANTARCTIC environmental conditions; COLD regions agriculture; PENICILLIUM; POLLUTANTS
- Publication
CLEAN: Soil, Air, Water, 2016, Vol 44, Issue 8, p992
- ISSN
1863-0650
- Publication type
Article
- DOI
10.1002/clen.201500753