2019
DOI: 10.17129/botsci.2336
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Actividad cambial y cribo-xilogenesis de tres especies en un gradiente altitudinal en la Sierra Nevada, México

Abstract: Antecedentes: Xilema y floema secundarios son derivados del cambium vascular y su dinámica (cribo-xilogénesis) se ha estudiado en coníferas y dicotiledóneas que crecen en un mismo sitio. Estudios que evalúen la cribo-xilogénesis en especies de amplia distribución altitudinal y con diferentes formas de vida son escasos. Pregunta: ¿existen diferencias en la actividad cambial y cribo-xilogénesis entre especies con distintas formas de vida y distribución diferencial en un gradiente altitudinal? Especie… Show more

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Cited by 2 publications
(3 citation statements)
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“…At the site level, the variables in vertical gradients are modified by the structure and density of the canopy, which is why the microclimate is considered to have a greater influence on cambial activity, radial growth and tissue differentiation [13]. The differences in VC and xylem production are related to the variations in the microclimate associated with the types of vegetation along the gradient, as previously reported by Jiménez-Noriega et al [54], who mentioned the variation in the onset and termination of xylogenesis in individuals from various altitudes. In this work, the three species studied-with different life forms-presented associations of different magnitudes and meaning between cambial activation, phenological events and environmental variables across the altitudinal gradient studied.…”
Section: Vascular Cambium Phenology and Environmental Variablesmentioning
confidence: 60%
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“…At the site level, the variables in vertical gradients are modified by the structure and density of the canopy, which is why the microclimate is considered to have a greater influence on cambial activity, radial growth and tissue differentiation [13]. The differences in VC and xylem production are related to the variations in the microclimate associated with the types of vegetation along the gradient, as previously reported by Jiménez-Noriega et al [54], who mentioned the variation in the onset and termination of xylogenesis in individuals from various altitudes. In this work, the three species studied-with different life forms-presented associations of different magnitudes and meaning between cambial activation, phenological events and environmental variables across the altitudinal gradient studied.…”
Section: Vascular Cambium Phenology and Environmental Variablesmentioning
confidence: 60%
“…It has been recorded that lower temperatures induce delays in leaf expansion [2], while maximum temperatures have been mostly related to spring leaves [57], with this being in agreement with the three species studied. The leaves that developed in May during the rainy season had a larger area along the gradient and this is also when xylogenesis occurred [54]. Notably, in Alchemilla, a cryptophyte, the main drivers for growth are global and indirect light levels (ISFmin and GSFmean).…”
Section: Vascular Cambium Phenology and Environmental Variablesmentioning
confidence: 98%
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