Effects of Bacterial-Feeding Nematodes and Glucose on Phenanthrene Removal by Pseudomonas putida
Bacterial-feeding nematodes can promote the bacterial activity through feeding. Bacterial abundance and their activity affect the degradation of polycyclic aromatic hydrocarbons （PAH） such as phenanthrene. The effects of bacterial-feeding nematodes, bacteria, and their interactions on the degradatio...
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| Published in: | Pedosphere Vol. 27; no. 1; pp. 165 - 171 |
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| Main Authors: | , , , , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
Beijing
Elsevier Ltd
01.02.2017
Elsevier Science Ltd Key Laboratory of Agro-Environment in Huang-Huai-Hai Plain, Ministry of Agriculture, Jinan 250100 China%Shandong Academy of Agricultural Sciences, Jinan 250100 China%Institute of Agricultural Resources and Environment, Shandong Academy of Agricultural Sciences, Jinan 250100 China%AgResearch, Hamilton 3240 New Zealand Institute of Agricultural Resources and Environment, Shandong Academy of Agricultural Sciences, Jinan 250100 China |
| Subjects: | |
| ISSN: | 1002-0160, 2210-5107 |
| Online Access: | Get full text |
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| Summary: | Bacterial-feeding nematodes can promote the bacterial activity through feeding. Bacterial abundance and their activity affect the degradation of polycyclic aromatic hydrocarbons （PAH） such as phenanthrene. The effects of bacterial-feeding nematodes, bacteria, and their interactions on the degradation of phenanthrene with or without glucose were studied through a microcosm experiment. The results showed that up to 57.0% of phenanthrene in mineral medium contaminated with phenanthrene was degraded in the control with bacteria alone and bacteria with the presence of nematodes and/or glucose increased the degradation of phenanthrene by 25.6% to 36.6%. Although both nematode and bacteria abundance decreased gradually, catechol 2,3-dioxygenase （C230） activity increased during the incubation period. Compared with bacteria alone, the presence of nematodes significantly increased C230 activity as well as the abundance of bacteria; this effect was more pronounced when glucose was present. The results imply that nematodes might promote the removal of phenanthrene from medium by stimulating bacteria and C230 activities. |
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| Bibliography: | Bacterial-feeding nematodes can promote the bacterial activity through feeding. Bacterial abundance and their activity affect the degradation of polycyclic aromatic hydrocarbons （PAH） such as phenanthrene. The effects of bacterial-feeding nematodes, bacteria, and their interactions on the degradation of phenanthrene with or without glucose were studied through a microcosm experiment. The results showed that up to 57.0% of phenanthrene in mineral medium contaminated with phenanthrene was degraded in the control with bacteria alone and bacteria with the presence of nematodes and/or glucose increased the degradation of phenanthrene by 25.6% to 36.6%. Although both nematode and bacteria abundance decreased gradually, catechol 2,3-dioxygenase （C230） activity increased during the incubation period. Compared with bacteria alone, the presence of nematodes significantly increased C230 activity as well as the abundance of bacteria; this effect was more pronounced when glucose was present. The results imply that nematodes might promote the removal of phenanthrene from medium by stimulating bacteria and C230 activities. 32-1315/P biodegradation, biostimulation, catechol 2,3-dioxygenase, enzyme activity, polycyclic aromatic hydrocarbons ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 content type line 23 |
| ISSN: | 1002-0160 2210-5107 |
| DOI: | 10.1016/S1002-0160(15)60103-5 |