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dc.creatorSassi, Samehes_ES
dc.creatorAydi, Samires_ES
dc.creatorHessini, Kameles_ES
dc.creatorGonzález García, Estheres_ES
dc.creatorArrese-Igor Sánchez, Césares_ES
dc.creatorAbdelly, Chedlyes_ES
dc.description.abstractThe effect of long-term osmotic stress was investigated in leaves of two common bean lines, with contrasting tolerance: Flamingo (tolerant) and coco blanc (sensitive). Water relations, organic solute, ion accumulation and amino acids content as well as osmotic adjustment (OA) were studied during an extended exposure to osmotic stress. Osmotic stress was applied by means of 50 mM mannitol for 15 days. At the end of the stress period, both osmotic potential at full turgor (psi(100)) and at turgor loss point (psi(0)) decreased significantly in stressed plants compared with the control. The decrease being greater in the sensitive line, showed a greater OA compared with flamingo. Sugars contents increased in stressed plants and seem to be the major components of osmotic adjustment in stressed common bean leaves. The increase was more marked in coco blanc. Osmotic stress tolerance could thus not be associated with higher OA. The possible role of decreased leaf cell elasticity (epsilon(max)) is discussed in relation to osmotic stress tolerance in this species.en
dc.description.sponsorshipThis work was supported by the AQUARHIZ Project: “Modulation of plant-bacteria interactions to enhance tolerance to water deficit for grain legumes in the Mediterranean dry lands” PT6 Project INCO-CT-2004-509115, and by the Tunisian Ministry of Higher Education and Scientific Research (LR10CBBC02).en
dc.publisherAcademic Journalsen
dc.relation.ispartofAfrican Journal of Biotechnology, 2010, 9(37). Págs. 6061-6069en
dc.rights© 2010 Academic Journalsen
dc.subjectCommon beanen
dc.subjectCarbohydrate accumulationen
dc.subjectOsmotic stressen
dc.subjectOsmotic adjustmenten
dc.subjectP-V curveen
dc.subjectWater relationsen
dc.subjectCell wall elasticityen
dc.subjectWater stressen
dc.subjectTurgor responsesen
dc.subjectSodium chlorideen
dc.subjectPea nodulesen
dc.titleLong-term mannitol-induced osmotic stress leads to stomatal closure, carbohydrate accumulation and changes in leaf elasticity in Phaselous vulgaris leavesen
dc.typeArtículo / Artikuluaes
dc.contributor.departmentCiencias del Medio Naturales_ES
dc.contributor.departmentNatura Ingurunearen Zientziakeu
dc.rights.accessRightsAcceso abierto / Sarbide irekiaes
dc.identifier.doi10.5897/AJB09.1783 (erróneo)
dc.type.versionVersión aceptada / Onetsi den bertsioaes

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