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Author Kraiser, T.; Stuardo, M.; Manzano, M.; Ledger, T.; Gonzalez, B. pdf  doi
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  Title Simultaneous assessment of the effects of an herbicide on the triad: rhizobacterial community, an herbicide degrading soil bacterium and their plant host Type
  Year 2013 Publication Plant And Soil Abbreviated Journal Plant Soil  
  Volume 366 Issue 1-2 Pages 377-388  
  Keywords 2,4-D herbicide; Acacia caven; Bioremediation; Cupriavidus pinatubonensis JMP134; Plant soil microcosms; Rhizosphere  
  Abstract This work addresses the relevant effects that one single compound, used as model herbicide, provokes on the activity/survival of a suitable herbicide degrading model bacterium and on a plant that hosts this bacterium and its bacterial rhizospheric community. The effects of the herbicide 2,4-dichlorophenoxyacetic acid (2,4-D), on Acacia caven hosting the 2,4-D degrading bacterium Cupriavidus pinatubonensis JMP134, and its rhizospheric microbiota, were simultaneously addressed in plant soil microcosms, and followed by culture dependent and independent procedures, herbicide removal tests, bioprotection assays and use of encapsulated bacterial cells. The herbicide provokes deleterious effects on the plant, which are significantly diminished by the presence of the plant associated C. pinatubonensis, especially with encapsulated cells. This improvement correlated with increased 2,4-D degradation rates. The herbicide significantly changes the structure of the A. caven bacterial rhizospheric community; and it also diminishes the preference of C. pinatubonensis for the A. caven rhizosphere compared with the surrounding bulk soil. The addition of an herbicide to soil triggers a complex, although more or less predictable, suite of effects on rhizobacterial communities, herbicide degrading bacteria and their plant hosts that should be taken into account in fundamental studies and design of bio(phyto)remediation procedures.  
  Address Univ Adolfo Ibanez, Fac Ingn & Ciencias, Santiago 7941169, Chile, Email: bernardo.gonzalez@uai.cl  
  Corporate Author Thesis  
  Publisher Springer Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0032-079x ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000317988600027 Approved  
  Call Number UAI @ eduardo.moreno @ Serial 278  
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Author Ortega-Martinez, E.; Toledo-Alarcon, J.; Fernandez, E.; Campos, J.L.; Oyarzun, R.; Etchebehere, C.; Cardena, R.; Cabezas, A.; Koók, L.; Bakonyi, P. doi  openurl
  Title A review of autotrophic denitrification for groundwater remediation: A special focus on bioelectrochemical reactors Type
  Year 2024 Publication Journal of Environmental Chemical Engineering Abbreviated Journal J. Environ. Chem. Eng.  
  Volume 12 Issue 1 Pages 111552  
  Keywords Autotrophic denitrification; Bioremediation; Bioelectrochemical systems; Investment costs; Groundwater recuperation; Microbial community  
  Abstract Groundwater is an important resource that can help in climate change adaptation. However, the pollution of these aquifers with nitrate is a widespread problem of growing concern. Biological denitrification using inorganic electron donors shows significant advantages in treating nitrate-polluted groundwater where organic matter presence is negligible. However, mass transfer limitations and secondary contamination seem to be the major hinderance to spread the use of these technologies. This could be solved by the use of bioelectrochemical systems (BES), which emerge as an attractive technology to solve these problems due to the reported low energy demand and high denitrification rates. However, technical and operational issues must be considered to replicate these results at full-scale. This review summarizes the biological basis of autotrophic denitrification and the key aspects of its application in bioelectrochemical systems. In addition, an estimation of the capital costs required for the implementation of a BES considering different population sizes and initial nitrate concentration in the ground-water is made.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2213-2929 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:001140225000001 Approved  
  Call Number UAI @ alexi.delcanto @ Serial 1948  
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