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dc.contributor.author
Xu, Hao
dc.contributor.author
Cooke, Janice E. K.
dc.contributor.author
Kemppainen, Minna Johanna
dc.contributor.author
Pardo, Alejandro Guillermo
dc.contributor.author
Zwiazek, Janusz J.
dc.date.available
2018-05-30T14:20:45Z
dc.date.issued
2016-07
dc.identifier.citation
Xu, Hao; Cooke, Janice E. K.; Kemppainen, Minna Johanna; Pardo, Alejandro Guillermo; Zwiazek, Janusz J.; Hydraulic conductivity and aquaporin transcription in roots of trembling aspen (Populus tremuloides) seedlings colonized by Laccaria bicolor; Springer; Mycorrhiza; 26; 5; 7-2016; 441-451
dc.identifier.issn
0940-6360
dc.identifier.uri
http://hdl.handle.net/11336/46592
dc.description.abstract
Ectomycorrhizal fungi have been reported to increase root hydraulic conductivity (L pr) by altering apoplastic and plasma membrane intrinsic protein (PIP)-mediated cell-to-cell water transport pathways in associated roots, or to have little effect on root water transport, depending on the interacting species and imposed stresses. In this study, we investigated the water transport properties and PIP transcription in roots of aspen (Populus tremuloides) seedlings colonized by the wild-type strain of Laccaria bicolor and by strains overexpressing a major fungal water-transporting aquaporin JQ585595. Inoculation of aspen seedlings with L. bicolor resulted in about 30 % colonization rate of root tips, which developed dense mantle and the Hartig net that was restricted in the modified root epidermis. Transcript abundance of the aspen aquaporins PIP1;2, PIP2;1, and PIP2;2 decreased in colonized root tips. Root colonization by JQ585595-overexpressing strains had no significant impact on seedling shoot water potentials, gas exchange, or dry mass; however, it led to further decrease in transcript abundance of PIP1;2 and PIP2;3 and the significantly lower L pr than in non-inoculated roots. These results, taken together with our previous study that showed enhanced root water hydraulics of L. bicolor-colonized white spruce (Picea glauca), suggest that the impact of L. bicolor on root hydraulics varies by the ectomycorrhiza-associated tree species.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Ectomycorrhiza
dc.subject
Aquaporins
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Laccaria
dc.subject
Populus
dc.subject.classification
Otras Ciencias Biológicas
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Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Hydraulic conductivity and aquaporin transcription in roots of trembling aspen (Populus tremuloides) seedlings colonized by Laccaria bicolor
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-05-29T20:58:59Z
dc.identifier.eissn
1432-1890
dc.journal.volume
26
dc.journal.number
5
dc.journal.pagination
441-451
dc.journal.pais
Alemania
dc.journal.ciudad
Berlin
dc.description.fil
Fil: Xu, Hao. University of Alberta; Canadá
dc.description.fil
Fil: Cooke, Janice E. K.. University of Alberta; Canadá
dc.description.fil
Fil: Kemppainen, Minna Johanna. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Micología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Pardo, Alejandro Guillermo. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Micología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Zwiazek, Janusz J.. University of Alberta; Canadá
dc.journal.title
Mycorrhiza
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1007/s00572-016-0681-8
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00572-016-0681-8
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