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dc.contributor.authorSánchez-Blanco, María Jesús-
dc.contributor.authorFerrández, Trinitario-
dc.contributor.authorMorales, María Angeles-
dc.contributor.authorMorte, Asunción-
dc.contributor.authorAlarcón Cabañero, Juan José-
dc.date.accessioned2009-09-22T07:41:43Z-
dc.date.available2009-09-22T07:41:43Z-
dc.date.issued2004-11-04-
dc.identifier.citationJournal of Plant Physiology 161(6) :675-682 (2004)en_US
dc.identifier.issn0176-1617-
dc.identifier.urihttp://hdl.handle.net/10261/17084-
dc.description.abstractThe influence of the arbuscular mycorrhizal fungus Glomus deserticola on the water relations, gas exchange parameters, and vegetative growth of Rosmarinus officinalis plants under water stress was studied. Plants were grown with and without the mycorrhizal fungus under glasshouse conditions and subjected to water stress by withholding irrigation water for 14 days. Along the experimental period, a significant effect of the fungus on the plant growth was observed, and under water stress, mycorrhizal plants showed an increase in aerial and root biomass compared to non-mycorrhizal plants. The decrease in the soil water potential generated a decrease in leaf water potential (Ψl) and stem water potential (Ψx) of mycorrhizal and non-mycorrhizal plants, with this decrease being lower in mycorrhizal water-stressed plants. Mycorrhization also had positive effects on the root hydraulic conductivity (Lp) of water stressed plants. Furthermore, mycorrhizal-stressed plants showed a more important decrease in osmotic potential at full turgor (Ψos) than did non-mycorrhizal-stressed plants, indicating the capacity of osmotic adjustment. Mycorrhizal infection also improved photosynthetic activity (Ψn) and stomatal conductance (gs) in plants under water stress compared to the non-mycorrhizal-stressed plants. A similar behaviour was observed in the photochemical efficiency of PSII (Fv/Fm) with this parameter being lower in non-mycorrhizal plants than in mycorrhizal plants under water stress conditions. In the same way, under water restriction, mycorrhizal plants showed higher values of chlorophyll content than did non-mycorrhizal plants. Thus, the results obtained indicated that the mycorrhizal symbiosis had a beneficial effect on the water status and growth of Rosmarinus officinalis plants under water-stress conditions.en_US
dc.description.sponsorshipThis research was supported by SENECA (PI-75/00819/ FS/01).en_US
dc.format.extent579917 bytes-
dc.format.mimetypeimage/jpeg-
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsclosedAccessen_US
dc.subjectArbuscular mycorrhizaen_US
dc.subjectGlomus deserticolaen_US
dc.subjectRosmarinus officinalisen_US
dc.subjectWater relationsen_US
dc.subjectWater stressen_US
dc.titleVariations in water status, gas exchange, and growth in Rosmarinus officinalis plants infected with Glomus deserticola under drought conditionsen_US
dc.typeartículoen_US
dc.identifier.doi10.1078/0176-1617-01191-
dc.description.peerreviewedPeer revieweden_US
dc.relation.publisherversionhttp://dx.doi.org/10.1078/0176-1617-01191en_US
dc.contributor.funderFundación Séneca-
dc.identifier.funderhttp://dx.doi.org/10.13039/100007801es_ES
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