Two strains (Pseudomonas taiwanensis PYR1 and Acinetobacter baumannii INP1) were isolated from PAH-contaminated Liaohe estuarine wetland using enrichment. The cells of PYR1 and INP1 were immobilized in cinder beads for pyrene and indeno(1,2,3-cd)pyrene biodegradation in wetland. Biodegradation of pyrene and indeno(1,2,3cd)pyrene in soils from wetland was carried out in pots using free cells as well as those immobilized in cinder beads to ascertain the role of bioaugmentation. Supported by the cinder beads, the immobilized cells degraded 70.7% and 80.9% of pyrene and indeno(1,2,3-cd)pyrene respectively after 30 days. While the free cells degraded only 58.2% and 55.3%. Additionally, microbial analysis with high-throughput sequencing revealed the changes of microbial communities in soil without and with cinder beads immobilized with strains. The result indicated that Gammaproteobacteria were dominant PAH-degrading groups during bioaugmentation. This effective approach can be used to treat other PAH-contaminated wetlands by immobilizing different species of bacteria in cinder beads. (C) 2015 Elsevier Ltd. All rights reserved.
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Loyola Coll, Entomol Res Inst, Div Microbiol, Madras 600034, Tamil Nadu, IndiaLoyola Coll, Entomol Res Inst, Div Microbiol, Madras 600034, Tamil Nadu, India
Balachandran, C.
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Duraipandiyan, V.
Balakrishna, K.
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Loyola Coll, Entomol Res Inst, Div Microbiol, Madras 600034, Tamil Nadu, IndiaLoyola Coll, Entomol Res Inst, Div Microbiol, Madras 600034, Tamil Nadu, India
Balakrishna, K.
Ignacimuthu, S.
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Loyola Coll, Entomol Res Inst, Div Microbiol, Madras 600034, Tamil Nadu, IndiaLoyola Coll, Entomol Res Inst, Div Microbiol, Madras 600034, Tamil Nadu, India
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Hokkaido Univ, Dept Urban & Environm Engn, Grad Sch Engn, Kita Ku, Sapporo, Hokkaido 0608628, JapanHokkaido Univ, Dept Urban & Environm Engn, Grad Sch Engn, Kita Ku, Sapporo, Hokkaido 0608628, Japan
Chung, Kyungmi
Okabe, Satoshi
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Hokkaido Univ, Dept Urban & Environm Engn, Grad Sch Engn, Kita Ku, Sapporo, Hokkaido 0608628, JapanHokkaido Univ, Dept Urban & Environm Engn, Grad Sch Engn, Kita Ku, Sapporo, Hokkaido 0608628, Japan
机构:
Loyola Coll, Entomol Res Inst, Div Microbiol, Madras 600034, Tamil Nadu, IndiaLoyola Coll, Entomol Res Inst, Div Microbiol, Madras 600034, Tamil Nadu, India
Balachandran, C.
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Duraipandiyan, V.
Balakrishna, K.
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Loyola Coll, Entomol Res Inst, Div Microbiol, Madras 600034, Tamil Nadu, IndiaLoyola Coll, Entomol Res Inst, Div Microbiol, Madras 600034, Tamil Nadu, India
Balakrishna, K.
Ignacimuthu, S.
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Loyola Coll, Entomol Res Inst, Div Microbiol, Madras 600034, Tamil Nadu, IndiaLoyola Coll, Entomol Res Inst, Div Microbiol, Madras 600034, Tamil Nadu, India
机构:
Hokkaido Univ, Dept Urban & Environm Engn, Grad Sch Engn, Kita Ku, Sapporo, Hokkaido 0608628, JapanHokkaido Univ, Dept Urban & Environm Engn, Grad Sch Engn, Kita Ku, Sapporo, Hokkaido 0608628, Japan
Chung, Kyungmi
Okabe, Satoshi
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h-index: 0
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Hokkaido Univ, Dept Urban & Environm Engn, Grad Sch Engn, Kita Ku, Sapporo, Hokkaido 0608628, JapanHokkaido Univ, Dept Urban & Environm Engn, Grad Sch Engn, Kita Ku, Sapporo, Hokkaido 0608628, Japan