New star on the stage amount of ray parenchyma in tree rings shows a link to climate

New star on the stage : amount of ray parenchyma in tree rings shows a link to climate

© 2013 The Authors. New Phytologist © 2013 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 198(2013), 2 vom: 13. Apr., Seite 486-495
1. Verfasser: Olano, José Miguel (VerfasserIn)
Weitere Verfasser: Arzac, Alberto, García-Cervigón, Ana I, von Arx, Georg, Rozas, Vicente
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2013
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't
Beschreibung
Zusammenfassung:© 2013 The Authors. New Phytologist © 2013 New Phytologist Trust.
Tree-ring anatomy reflects the year-by-year impact of environmental factors on tree growth. Up to now, research in this field has mainly focused on the hydraulic architecture, with ray parenchyma neglected despite the growing recognition of its relevance for xylem function. Our aim was to address this gap by exploring the potential of the annual patterns of xylem parenchyma as a climate proxy. We constructed ring-width and ray-parenchyma chronologies from 1965 to 2004 for 20 Juniperus thurifera trees growing in a Mediterranean continental climate. Chronologies were related to climate records by means of correlation, multiple regression and partial correlation analyses. Ray parenchyma responded to climatic conditions at critical stages during the xylogenetic process; namely, at the end of the previous year's xylogenesis (October) and at the onset of earlywood (May) and latewood formation (August). Ray parenchyma-based chronologies have potential to complement ring-width chronologies as a tool for climate reconstructions. Furthermore, medium- and low-frequency signals in the variation of ray parenchyma may improve our understanding of how trees respond to environmental fluctuations and to global change
Beschreibung:Date Completed 10.09.2013
Date Revised 16.04.2021
published: Print-Electronic
CommentIn: New Phytol. 2013 Apr;198(2):328-30. - PMID 23510184
Citation Status MEDLINE
ISSN:1469-8137
DOI:10.1111/nph.12113