The value of leaf cuticle characteristics in the identification and classification of Iberian Mediterranean members of the genus Pinus

García Álvarez, Salvia and Garcia-Amorena Gomez del Moral, Ignacio and Rubiales Jimenez, Juan Manuel and Morla Juaristi, Carlos (2009). The value of leaf cuticle characteristics in the identification and classification of Iberian Mediterranean members of the genus Pinus. "Botanical Journal of the Linnean Society", v. 161 (n. 4); pp. 436-448. ISSN 0024-4074. https://doi.org/10.1111/j.1095-8339.2009.01011.x.

Description

Title: The value of leaf cuticle characteristics in the identification and classification of Iberian Mediterranean members of the genus Pinus
Author/s:
  • García Álvarez, Salvia
  • Garcia-Amorena Gomez del Moral, Ignacio
  • Rubiales Jimenez, Juan Manuel
  • Morla Juaristi, Carlos
Item Type: Article
Título de Revista/Publicación: Botanical Journal of the Linnean Society
Date: December 2009
Volume: 161
Subjects:
Faculty: E.T.S.I. Montes (UPM)
Department: Silvopascicultura [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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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.

More information

Item ID: 5073
DC Identifier: http://oa.upm.es/5073/
OAI Identifier: oai:oa.upm.es:5073
DOI: 10.1111/j.1095-8339.2009.01011.x
Official URL: http://onlinelibrary.wiley.com/doi/10.1111/j.1095-8339.2009.01011.x/abstract
Deposited by: Memoria Investigacion
Deposited on: 24 Nov 2010 11:55
Last Modified: 20 Apr 2016 14:02
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