Biodegradation of heptachlor and heptachlor epoxide-contaminated soils by white-rot fungal inocula

The ability of certain white-rot fungi (WRF) inocula to transform heptachlor and heptachlor epoxide and its application in artificially contaminated soil were investigated. Fungal inoculum of Pleurotus ostreatus eliminated approximately 89 % of heptachlor after 28 days of incubation, and chlordene w...

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Bibliographic Details
Published in:Environmental science and pollution research international 2014-10, Vol.21 (19), p.11305-11312
Main Authors: Purnomo, Adi Setyo, Putra, Surya Rosa, Shimizu, Kuniyoshi, Kondo, Ryuichiro
Format: Article
Language:English
Subjects:
Aquatic Pollution
Atmospheric Protection/Air Quality Control/Air Pollution
Biodegradation
Biodegradation, Environmental
Bioremediation
Contamination
Degradation
Diols
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Environmental science
Fungi
Heptachlor
Heptachlor - metabolism
Heptachlor epoxide
Heptachlor Epoxide - metabolism
Inoculum
Insecticides - metabolism
Investigations
Metabolites
Moisture content
Mushrooms
Pesticides
Pleurotus - metabolism
Pleurotus ostreatus
polluted soils
Research Article
Soil contamination
Soil microorganisms
Soil Pollutants - metabolism
Soil pollution
Soils
Studies
toxicity
Waste Water Technology
wastes
Water Management
Water Pollution Control
White rot
white-rot fungi
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Summary:The ability of certain white-rot fungi (WRF) inocula to transform heptachlor and heptachlor epoxide and its application in artificially contaminated soil were investigated. Fungal inoculum of Pleurotus ostreatus eliminated approximately 89 % of heptachlor after 28 days of incubation, and chlordene was detected as the primary metabolite. The fungal inoculum of Pleurotus ostreatus had the highest ability to degrade heptachlor epoxide; approximately 32 % were degraded after 28 days of incubation, and heptachlor diol was detected as the metabolite product. Because Pleurotus ostreatus transformed heptachlor into a less toxic metabolite and could also effectively degrade heptachlor epoxide, it was then selected to be applied to artificially contaminated soil. The spent mushroom waste (SMW) of Pleurotus ostreatus degraded heptachlor and heptachlor epoxide by approximately 91 and 26 %, respectively, over 28 days. This finding indicated that Pleurotus ostreatus SMW could be used to bioremediate heptachlor- and heptachlor epoxide-contaminated environments.
ISSN:0944-1344
1614-7499
DOI:10.1007/s11356-014-3026-1