Rights statement: This is the author’s version of a work that was accepted for publication in International Biodeterioration & Biodegradation. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International Biodeterioration & Biodegradation, 126, 2018 DOI: 10.1016/j.ibiod.2017.09.021
Accepted author manuscript, 594 KB, PDF document
Available under license: CC BY-NC-ND: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Enhancement of 14C-phenanthrene mineralisation in the presence of plant-root biomass in PAH-NAPL amended soil
AU - Vázquez-Cuevas, Gabriela M.
AU - Stevens, Carly J.
AU - Semple, Kirk T.
N1 - This is the author’s version of a work that was accepted for publication in International Biodeterioration & Biodegradation. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International Biodeterioration & Biodegradation, 126, 2018 DOI: 10.1016/j.ibiod.2017.09.021
PY - 2018/1
Y1 - 2018/1
N2 - Investigations into the beneficial effects of the interaction between plants and soil microorganisms towards bioremediation of contaminated soil has been studied over the past 30 years. This subject has been summarized as the process where organic contaminants can be removed from the soil through the interaction between roots and catabolic microbial populations. This study assessed the tolerance of different plant species against polycyclic aromatic hydrocarbon-non aqueous phase liquid (PAH-NAPL) contaminated soil and the feasibility of the use of their root biomass to promote the biodegradation of 14C-phenanthene. Toxicity results showed that seeds germination was not affected by the presence of PAHs. Furthermore, mineralisation of 14C-phenanthrene was significantly enhanced by the addition of root biomass after at least two weeks incubation. Moreover, bacterial numbers did not show a significant relationship with 14C-phenanthrene mineralisation. Results showed that the higher mineralisation of 14C-phenanthrene is not related to an increase on the microbial numbers as is normally assumed.
AB - Investigations into the beneficial effects of the interaction between plants and soil microorganisms towards bioremediation of contaminated soil has been studied over the past 30 years. This subject has been summarized as the process where organic contaminants can be removed from the soil through the interaction between roots and catabolic microbial populations. This study assessed the tolerance of different plant species against polycyclic aromatic hydrocarbon-non aqueous phase liquid (PAH-NAPL) contaminated soil and the feasibility of the use of their root biomass to promote the biodegradation of 14C-phenanthene. Toxicity results showed that seeds germination was not affected by the presence of PAHs. Furthermore, mineralisation of 14C-phenanthrene was significantly enhanced by the addition of root biomass after at least two weeks incubation. Moreover, bacterial numbers did not show a significant relationship with 14C-phenanthrene mineralisation. Results showed that the higher mineralisation of 14C-phenanthrene is not related to an increase on the microbial numbers as is normally assumed.
KW - Plant-enhanced
KW - Mineralisation
KW - PAHs
KW - Diesel
KW - Roots
KW - NAPL
U2 - 10.1016/j.ibiod.2017.09.021
DO - 10.1016/j.ibiod.2017.09.021
M3 - Journal article
VL - 126
SP - 78
EP - 85
JO - International Biodeterioration and Biodegradation
JF - International Biodeterioration and Biodegradation
SN - 0964-8305
ER -