How does arbuscular mycorrhizal symbiosis regulate root hydraulic properties and plasma membrane aquaporins in Phaseolus vulgaris under drought, cold or salinity stresses?

Here, we evaluated how the arbuscular mycorrhizal (AM) symbiosis regulates root hydraulic properties and root plasma membrane aquaporins (PIP) under different stresses sharing a common osmotic component. Phaseolus vulgaris plants were inoculated or not with the AM fungus Glomus intraradices, and sub...

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Détails bibliographiques
Publié dans:The New phytologist. - 1990. - 173(2007), 4 vom: 01., Seite 808-816
Auteur principal: Aroca, Ricardo (Auteur)
Autres auteurs: Porcel, Rosa, Ruiz-Lozano, Juan Manuel
Format: Article en ligne
Langue:English
Publié: 2007
Accès à la collection:The New phytologist
Sujets:Journal Article Research Support, Non-U.S. Gov't Aquaporins Inorganic Chemicals Membrane Proteins Plant Proteins Water 059QF0KO0R
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520 |a Here, we evaluated how the arbuscular mycorrhizal (AM) symbiosis regulates root hydraulic properties and root plasma membrane aquaporins (PIP) under different stresses sharing a common osmotic component. Phaseolus vulgaris plants were inoculated or not with the AM fungus Glomus intraradices, and subjected to drought, cold or salinity. Stress effects on root hydraulic conductance (L), PIP gene expression and protein abundance were evaluated. Under control conditions, L in AM plants was about half that in nonAM plants. However, L was decreased as a result of the three stresses in nonAM plants, while it was almost unchanged in AM plants. At the same time, PIP2 protein abundance and phosphorylation state presented the same trend as L. Finally, the expression of each PIP gene responded differently to each stress and was dependent on the AM fungal presence. Differential expression of the PIP genes studied under each stress depending on the AM fungal presence may indicate a specific function and regulation by the AM symbiosis of each gene under the specific conditions of each stress tested 
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700 1 |a Ruiz-Lozano, Juan Manuel  |e verfasserin  |4 aut 
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