Hydraulic Architecture Of Lianas In A Semiarid Climate: Efficiency Or Safety?

dc.creatorDantas Carvalho
dc.creatorEllen Cristina; Martins
dc.creatorFernando Roberto; Soares
dc.creatorArlete Aparecida; Oliveira
dc.creatorRafael Silva; Muniz
dc.creatorCelli Rodrigues; Araujo
dc.creatorFrancisca Soares
dc.date2015-APR-JUN
dc.date2016-06-07T13:33:58Z
dc.date2016-06-07T13:33:58Z
dc.date.accessioned2018-03-29T01:49:40Z
dc.date.available2018-03-29T01:49:40Z
dc.identifier
dc.identifierHydraulic Architecture Of Lianas In A Semiarid Climate: Efficiency Or Safety?. Soc Botanica Brasil, v. 29, p. 198-206 APR-JUN-2015.
dc.identifier0102-3306
dc.identifierWOS:000356078800004
dc.identifier10.1590/0102-33062014abb3754
dc.identifierhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000200198&lng=en&nrm=iso&tlng=en
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/243814
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1307512
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionXylem anatomical traits can provide insights regarding the mechanisms affecting the distribution of vascular plants across environmental gradients. In this study, we aimed to investigate the hypothesis that lianas occurring in semiarid environments have characteristics that maximize the xylem resistance to tension-induced cavitation along the root-stem-branch continuum. To gather information regarding the hydraulic architecture of the lianas, we analyzed several anatomical traits of wood: cross-sectional area occupied by the parenchyma (A(p)), fibers (A(f)), and vessels (A(v)); average vessel diameter (d); wood density (WD); pit diameter in the vessel wall (d(pit)); pit density (N-pit), and potential hydraulic conductivity (Kp) in branches, stems, and roots of three congeneric species of lianas that occur in two vegetation types of the semiarid regions of Brazil. We found that lianas in these semiarid environments possess a number of the following xylem traits that may allow resistance to tension-induced cavitation: 1) lower vessel diameter, lower Kp, and higher hydraulic safety in roots and branches; 2) Dimorphic vessels, ensuring both hydraulic efficiency and safety; and 3) small diameter of pits (potentially associated with a decrease in the membrane area of the vessel pits). This suite of traits may provide insight into mechanisms allowing lianas to occur in semiarid environments.
dc.description29
dc.description2
dc.description
dc.description198
dc.description206
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionNational Program for Academic Cooperation
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description
dc.description
dc.description
dc.languageen
dc.publisherSOC BOTANICA BRASIL
dc.publisher
dc.publisherSAO PAULO SP
dc.relationACTA BOTANICA BRASILICA
dc.rightsfechado
dc.sourceWOS
dc.subjectWood Density
dc.subjectRain-forest
dc.subjectWater Relations
dc.subjectBignonieae Bignoniaceae
dc.subjectXylem Anatomy
dc.subjectPlants
dc.subjectTrees
dc.subjectEvolution
dc.subjectTransport
dc.subjectHistory
dc.titleHydraulic Architecture Of Lianas In A Semiarid Climate: Efficiency Or Safety?
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución