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dc.contributor.author
Gil Cardeza, Maria Lourdes
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dc.contributor.author
Declerck, Stéphane
dc.contributor.author
Calonne Salmon, Maryline
dc.date.available
2022-04-07T22:12:36Z
dc.date.issued
2021-01
dc.identifier.citation
Gil Cardeza, Maria Lourdes; Declerck, Stéphane; Calonne Salmon, Maryline; Impact of increasing chromium (VI) concentrations on growth, phosphorus and chromium uptake of maize plants associated to the mycorrhizal fungus Rhizophagus irregularis MUCL 41833; Elsevier; Heliyon; 7; 1; 1-2021; 1-10
dc.identifier.issn
2405-8440
dc.identifier.uri
http://hdl.handle.net/11336/154698
dc.description.abstract
Arbuscular mycorhizal fungi (AMF) associated to plants may represent a promising phyto-remediation avenue due to the widely documented role of these fungi in alleviation of numerous abiotic (e.g. heavy metals) stresses. In the present work, it was the objective to study the dynamics of inorganic phosphorus (Pi) and chromium(VI) (Cr(VI)) and total Cr uptake by the plant-AMF associates Zea mays þ R. irregularis MUCL 41833, under increasing (i.e. 0, 0.1, 1 and 10 mg L1 ) concentrations of Cr(VI). The plant-AMF associates were grown in a circulatory semihydroponic cultivation system under greenhouse conditions. We demonstrated that Cr(VI) had an hormesis effect on root colonization of maize. Indeed, at 0.1 and 1 mg L1 Cr(VI), root colonization was increased by approximately 55% as compared to the control (i.e. in absence of Cr(VI) in the solution), while no difference was noticed at 10 mg L1 Cr(VI) (P 0.05). However, this did not result in an increased uptake of Pi by the AMFcolonized plants in presence of 0.1 mg L1 Cr(VI) as compared to the AMF control in absence of Cr(VI) (P 0.05). Conversely, the presence of 1 mg L1 Cr(VI) stimulated the Pi uptake by non-mycorrhizal plants, which absorbed 17% more Pi than their mycorrhizal counterparts (P 0.05). In addition, the non-mycorrhizal plants absorbed, in average, 8% more Cr(VI) than the mycorrhizal plants. Overall, our results prompt the hypothesis that in presence of AMF, the regulation of uptake of Cr(VI) and Pi by plant roots is done mostly by the fungus rather than the root cells. This regulated uptake of roots associated to AMF would indicate that the symbiosis could benefit the plants by providing a stable Pi uptake in a Cr(VI) polluted environment.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
ARBUSCULAR MYCORRHIZAL FUNGI
dc.subject
CHROMIUM (VI)
dc.subject
PHOSPHORUS DYNAMICS
dc.subject
CHROMIUM DYNAMICS
dc.subject
PHYTO-REMEDIATION
dc.subject.classification
Micología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Impact of increasing chromium (VI) concentrations on growth, phosphorus and chromium uptake of maize plants associated to the mycorrhizal fungus Rhizophagus irregularis MUCL 41833
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-03-31T18:44:45Z
dc.identifier.eissn
2405-8440
dc.journal.volume
7
dc.journal.number
1
dc.journal.pagination
1-10
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Gil Cardeza, Maria Lourdes. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Investigaciones en Ciencias Agrarias de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias. Instituto de Investigaciones en Ciencias Agrarias de Rosario; Argentina
dc.description.fil
Fil: Declerck, Stéphane. Université Catholique de Louvain; Bélgica
dc.description.fil
Fil: Calonne Salmon, Maryline. Université Catholique de Louvain; Bélgica
dc.journal.title
Heliyon
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://www.sciencedirect.com/science/article/pii/S240584402032733X
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.heliyon.2020.e05891
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