Nom du corpus

Corpus Systématique Végétale

Titre du document

The dynamics of leaf extension in plants with diverse altitudinal ranges

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Poa
  • Leaf extension
  • Altitude
  • Temperature
Nom du fichier dans la ressource
Syst_veg6_v2_021737
Auteur(s)
  • Ch. Körner 1
  • F. I. Woodward 2
Affiliation(s)
  • 1) Institut für Botanik, Universität Innsbruck, Sternwartestrasse 15, A-6020, Innsbruck, Austria
  • 2) Department of Botany, University of Cambridge, Downing Street, CB2 3EA, Cambridge, UK
Résumé

The dynamics of leaf extension in five species of Poa were studied with electronic auxanometers (LVDTs) along an elevational gradient from 600 to 3200 m in the Austrian Alps. Extension rates peak at midday at all elevations and rates at 20°C are almost twice as high at low elevation as compared with those from the highest sites. The low temperature threshold for leaf extension drops by 7 K over this range of elevation, with plants from the highest sites showing some extension around freezing point. Thus, there is a substantial adaptive adjustment in response of leaf extension to declining mean temperatures with increasing altitude, which is not paralleled by known altitudinal trends of photosynthetic responses in herbaceous plants.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - ecology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
Catégories WoS
  • 1 - science ; 2 - ecology
Identifiant ISTEX
6D119A48EBC755CD4D344147E7E6E6F6B12D6D5E
Revue

Oecologia

Année de publication
1987
Présence de XML structuré
Non
Score qualité du texte
7.11
Version PDF
1.3
Type de publication
Journal
ark:/67375/1BB-0RNQ6LW8-H
Powered by Lodex 9.3.8