Removal of pentachlorophenol in a rhizotron system with ryegrass (Lolium multiflorum)
Degradation of pentachlorophenol (PCP) in the rhizosphere of Lolium multiflorum (ryegrass) was studied in an Andisol of southern Chile. A rhizotron system was designed to evaluate the effect of different PCP concentrations (50, 100 and 250 mg kg-1) on plant biomass, organic acid exudation, dehydroge...
Guardado en:
| Autores principales: | , , , , , |
|---|---|
| Lenguaje: | English |
| Publicado: |
Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
2013
|
| Materias: | |
| Acceso en línea: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162013000200019 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:scielo:S0718-95162013000200019 |
|---|---|
| record_format |
dspace |
| spelling |
oai:scielo:S0718-951620130002000192013-09-09Removal of pentachlorophenol in a rhizotron system with ryegrass (Lolium multiflorum)Urrutia,CRubilar,OParede,CBenítez,EAzcón,RDiez,M. C Pentachloropheno phytoremediation Lolium multiflorum rhizosphere Degradation of pentachlorophenol (PCP) in the rhizosphere of Lolium multiflorum (ryegrass) was studied in an Andisol of southern Chile. A rhizotron system was designed to evaluate the effect of different PCP concentrations (50, 100 and 250 mg kg-1) on plant biomass, organic acid exudation, dehydrogenase and the ß-glucosidase activity of L. multiflorum. Moreover, the microbial biomass was estimated using a molecular technique in different sections of rhizotrons. More than 96% of PCP was removed in the rhizotron system by adsorption in the soil and degradation by the rhizosphere of L. multiflorum. The plant biomass decreased when the PCP concentration was increased in the soil, the biomass for the treatment with 250 mg kg-1 being significantly lower. The estimation of the microbial biomass and ß-glucosidase activity in the soil was not affected when the PCP concentration was increased, indicating a low toxicity of the contaminant due to its lesser availability. However, the dehydrogenase activity decreased when increasing the PCP concentration, showing negative effects on microorganisms. The organic acid exudates varied during the incubation time, influenced by the stress of the different treatments and the distribution of roots. Therefore, Lolium multiflorum is a promising candidate for designing field scale phytoremediation processes.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.13 n.2 20132013-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162013000200019en10.4067/S0718-95162013005000039 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
Pentachloropheno phytoremediation Lolium multiflorum rhizosphere |
| spellingShingle |
Pentachloropheno phytoremediation Lolium multiflorum rhizosphere Urrutia,C Rubilar,O Parede,C Benítez,E Azcón,R Diez,M. C Removal of pentachlorophenol in a rhizotron system with ryegrass (Lolium multiflorum) |
| description |
Degradation of pentachlorophenol (PCP) in the rhizosphere of Lolium multiflorum (ryegrass) was studied in an Andisol of southern Chile. A rhizotron system was designed to evaluate the effect of different PCP concentrations (50, 100 and 250 mg kg-1) on plant biomass, organic acid exudation, dehydrogenase and the ß-glucosidase activity of L. multiflorum. Moreover, the microbial biomass was estimated using a molecular technique in different sections of rhizotrons. More than 96% of PCP was removed in the rhizotron system by adsorption in the soil and degradation by the rhizosphere of L. multiflorum. The plant biomass decreased when the PCP concentration was increased in the soil, the biomass for the treatment with 250 mg kg-1 being significantly lower. The estimation of the microbial biomass and ß-glucosidase activity in the soil was not affected when the PCP concentration was increased, indicating a low toxicity of the contaminant due to its lesser availability. However, the dehydrogenase activity decreased when increasing the PCP concentration, showing negative effects on microorganisms. The organic acid exudates varied during the incubation time, influenced by the stress of the different treatments and the distribution of roots. Therefore, Lolium multiflorum is a promising candidate for designing field scale phytoremediation processes. |
| author |
Urrutia,C Rubilar,O Parede,C Benítez,E Azcón,R Diez,M. C |
| author_facet |
Urrutia,C Rubilar,O Parede,C Benítez,E Azcón,R Diez,M. C |
| author_sort |
Urrutia,C |
| title |
Removal of pentachlorophenol in a rhizotron system with ryegrass (Lolium multiflorum) |
| title_short |
Removal of pentachlorophenol in a rhizotron system with ryegrass (Lolium multiflorum) |
| title_full |
Removal of pentachlorophenol in a rhizotron system with ryegrass (Lolium multiflorum) |
| title_fullStr |
Removal of pentachlorophenol in a rhizotron system with ryegrass (Lolium multiflorum) |
| title_full_unstemmed |
Removal of pentachlorophenol in a rhizotron system with ryegrass (Lolium multiflorum) |
| title_sort |
removal of pentachlorophenol in a rhizotron system with ryegrass (lolium multiflorum) |
| publisher |
Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo |
| publishDate |
2013 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162013000200019 |
| work_keys_str_mv |
AT urrutiac removalofpentachlorophenolinarhizotronsystemwithryegrassloliummultiflorum AT rubilaro removalofpentachlorophenolinarhizotronsystemwithryegrassloliummultiflorum AT paredec removalofpentachlorophenolinarhizotronsystemwithryegrassloliummultiflorum AT beniteze removalofpentachlorophenolinarhizotronsystemwithryegrassloliummultiflorum AT azconr removalofpentachlorophenolinarhizotronsystemwithryegrassloliummultiflorum AT diezmc removalofpentachlorophenolinarhizotronsystemwithryegrassloliummultiflorum |
| _version_ |
1714206455591075840 |