Xylem Conductivity and Anatomical Traits in Diverse Lianas and Small Tree Species from a Tropical Forest of Southwest Mexico

Gutiérrez, Mauricio; Miguel-Chávez, Rubén San; Terrazas, Teresa

doi:10.3923/ijb.2009.279.286

Cited by 27 publications

(23 citation statements)

References 16 publications

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“…A larger A V gives rise to a higher porosity of xylem and thus a lower WD (McCulloh et al 2012). We observed that an increase Gutiérrez et al 2009;Rosell & Olson 2014). Few wide vessels allow for a high Kp; however, these vessels are only found in parts of the stem.…”

Section: Discussionmentioning

confidence: 67%

“…In the current study, over 70% of the vessels fell into the first diameter classes. Although the predominance of narrow vessels in the branches and roots of the studied liana species resulted in a lower Kp, it could potentially increase the hydraulic safety (Gutiérrez et al 2009;Abrantes et al 2013). Although liana xylem is able to transport large volumes of water (Carlquist 1985;Carlquist 2012), the high percentage of narrow vessels indicate that they also have hydraulic safety.…”

Section: Discussionmentioning

confidence: 99%

“…The vessels in lianas tend to be very wide or very narrow (Carlquist 1985;Lima et al 2010;Carlquist 2012;Rosell & Olson 2014) in contrast to the normal distribution expected for a population of cells (Carlquist 1985). In short, the simultaneous presence of wide and narrow vessels (vessel dimorphism) assures both efficiency and safety of hydraulic conductivity in lianas (Gutiérrez et al 2009). …”

Section: Discussionmentioning

confidence: 99%

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Hydraulic architecture of lianas in a semiarid climate: efficiency or safety?

et al. 2015

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Xylem 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.

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Section: Discussionmentioning

confidence: 67%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Hydraulic architecture of lianas in a semiarid climate: efficiency or safety?

et al. 2015

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“…En cambio, en I. carnea spp. fistulosa, el parénquima es escaso y abunda el tejido esclerenquimático, lo cual estaría en concordancia con la necesidad de autosostenerse (Carlquist & Hanson 1991;Carlquist, 2001;Gutiérrez et al, 2009;Angyalossy et al, 2011;Schnitzer, 2015). Iguales observaciones fueron reportadas para otras dos especies de arbustos, I. chilopsidis Standl.…”

Section: Discussionunclassified

“…Iguales conclusiones fueron reportadas para otras familias y géneros que presentan especies de lianas (Gutiérrez et al, 2009;Angyalossy et al, 2011;Schnitzer, 2015), por lo que se plantea la necesidad de ampliar los estudios cuantitativos del leño en especies Argentinas.…”

Section: Discussionunclassified

Variante cambial en tallos de Ipomoea (Convolvulaceae) nativas de Argentina.

Delbón

Sánchez²,

Cosa³

2016

Bol. Soc. Argent. Bot.

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Ipomoea es un género diversificado y complejo, compuesto por herbáceas, lianas y enredaderas leñosas, y un pequeño grupo de arbustos y árboles. Llama la atención que todas las especies estudiadas anteriormente presentaron diferentes tipos de variante cambial en sus tallos, independientemente del modo de vida, excepto dos taxones con crecimiento secundario normal, una liana y un árbol. Por ello, en el presente trabajo se planteó el estudio de tres enredaderas nativas de Argentina, Ipomoea cairica, I. purpurea e I. rubriflora, y de I. carnea ssp. fistulosa, árbol con crecimientonormal, con el fin de comparar el desarrollo de sus tallos y aportar datos de interés para dilucidar sus relaciones filogenéticas. Las cuatro especies estudiadas presentaron igual ontogenia y anatomía desus tallos con crecimiento primario, lo que apoyaría sus estrechas relaciones filogenéticas. Por otro lado, las enredaderas presentaron sólo dos tipos de variante cambial, el patrón lobado y el de cámbiumsupernumerario. Se puede inferir que en Ipomoea el tipo de crecimiento secundario, así como los tipos de variante cambial, no estarían directamente relacionados con el hábito; sin embargo, otras características del leño pueden ponerse a consideración como la proporción de tejido parenquimático y características de los vasos.

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