Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Biodegradation of phenanthrene by indigenous microorganisms in soils from Livingstone Island, Antarctica
AU - Okere, Uchechukwu V.
AU - Cabrerizo, Ana
AU - Dachs, Jordi
AU - Jones, Kevin C.
AU - Semple, Kirk T.
PY - 2012
Y1 - 2012
N2 - Biodegradation of polycyclic aromatic hydrocarbons (PAHs) in soils has been linked to history of exposure to PAHs and prevailing environmental conditions. This work assessed the capacity of indigenous microorganisms in soils collected in Livingstone Island (South Shetlands Islands, Antarctica) with no history of pollution (∑PAHs: 0.14–1.47 ng g−1 dw) to degrade 14C-phenanhthrene at 4, 12 and 22 °C. The study provides evidence of the presence of phenanthrene-degrading microorganisms in all studied soils. Generally, the percentage of 14C-phenanhthrene mineralized increased with increasing temperature. The highest extent of 14C-phenanhthrene mineralization (47.93%) was observed in the slurried system at 22 °C. This work supports findings of the presence of PAH-degrading microorganisms in uncontaminated soils and suggests the case is the same for uncontaminated Antarctic remote soils.
AB - Biodegradation of polycyclic aromatic hydrocarbons (PAHs) in soils has been linked to history of exposure to PAHs and prevailing environmental conditions. This work assessed the capacity of indigenous microorganisms in soils collected in Livingstone Island (South Shetlands Islands, Antarctica) with no history of pollution (∑PAHs: 0.14–1.47 ng g−1 dw) to degrade 14C-phenanhthrene at 4, 12 and 22 °C. The study provides evidence of the presence of phenanthrene-degrading microorganisms in all studied soils. Generally, the percentage of 14C-phenanhthrene mineralized increased with increasing temperature. The highest extent of 14C-phenanhthrene mineralization (47.93%) was observed in the slurried system at 22 °C. This work supports findings of the presence of PAH-degrading microorganisms in uncontaminated soils and suggests the case is the same for uncontaminated Antarctic remote soils.
KW - Livingstone Island, sub-Antarctica, microbial degradation, phenanthrene, soil
U2 - 10.1111/j.1574-6968.2012.02501.x
DO - 10.1111/j.1574-6968.2012.02501.x
M3 - Journal article
VL - 329
SP - 69
EP - 77
JO - FEMS Microbiology Letters
JF - FEMS Microbiology Letters
SN - 0378-1097
IS - 1
ER -