Memorias de investigación
Artículos en revistas:
The value of leaf cuticle characteristics in the identification and classification of Iberian Mediterranean members of the genus Pinus
Año:2009
Áreas de investigación
  • Botánica
Datos
Descripción
This study reports the value of leaf cuticle characteristics in the identification and classification of Iberian Mediterranean species of the genus Pinus (P. nigra subsp. salzmannii, P. pinaster, P. pinea and P. halepensis), with the aim of using these characters to identify isolated cuticles and stomata in palynology slides. Preparations were made of the cuticles of pine needles belonging to one natural Iberian population of each of the above species. A number of epidermal morphological characteristics were then recorded with the aim of distinguishing these species from one another. The structure of the stomatal complex (the shape and arrangement of the subsidiary cells) was different in each species. The aperture of the epistomatal chamber was significantly smaller in P. pinea than in the other species examined, and the variables recorded for the thickening of the guard cells provided relationships that clearly distinguished all four taxa. The width and length of the stomata and the upper woody lamellae, the central distance between the external limits of the medial lamellae borders and the length of the stem were the most useful variables in this respect. The present results contribute to the ongoing discussion regarding the taxonomic classification of the members of Pinus, and provide valuable clues for the identification of Iberian Mediterranean pine species from small pine needle fragments or isolated stomata. After validation of the present results for multiple populations, these results could also be used to help identify fossil leaf macroremains and the scattered/ isolated stomata commonly observed in palaeopalynological samples.
Internacional
Si
JCR del ISI
Si
Título de la revista
BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
ISSN
0024-4074
Factor de impacto JCR
1,189
Información de impacto
Volumen
DOI
Número de revista
161
Desde la página
436
Hasta la página
448
Mes
ENERO
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Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Historia y dinámica del paisaje vegetal
  • Departamento: Silvopascicultura