Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
The value of leaf cuticle characteristics in the identification and classification of Iberian Mediterranean members of the genus Pinus
Year:2009
Research Areas
  • Botany
Information
Abstract
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.
International
Si
JCR
Si
Title
BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
ISBN
0024-4074
Impact factor JCR
1,189
Impact info
Volume
Journal number
161
From page
436
To page
448
Month
ENERO
Ranking
Participants
  • Autor: Salvia García Álvarez (UPM)
  • Autor: Ignacio Garcia-Amorena Gomez del Moral (UPM)
  • Autor: Juan Manuel Rubiales Jimenez (UPM)
  • Autor: Carlos Morla Juaristi (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Historia y dinámica del paisaje vegetal
  • Departamento: Silvopascicultura
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