You are here: Home
/ Publication Information
Title: Stem girdling manipulates leaf sugar concentrations and anthocyanin expression in sugar maples trees during autumn
Author: Murakami, P.F.; Schaberg, P.G.; Shane, J.B.
Source: Tree Physiology. 28: 1467-1473.
Publication Series: Journal/Magazine Article (JRNL)
Description: To better understand the effects of sugar accumulation on red color development of foliage during autumn, we compared carbohydrate concentration, anthocyanin expression and xylem pressure potential of foliage on girdled versus non-girdled (control) branches of 12 mature, open-grown sugar maple (Acer saccharum Marsh.) trees. Half of the study trees were known to exhibit mostly yellow foliar coloration and half historically displayed red coloration. Leaves from both girdled and control branches were harvested at peak color expression (i.e., little or no chlorophyll present). Disruption of phloem export by girdling increased foliar sucrose, glucose and fructose concentrations regardless of historical tree color patterns. Branch girdling also increased foliar anthocyanin expression from 50.4 to 66.7% in historically red trees and from 11.7 to 54.2% in historically yellow trees, the latter representing about a fivefold increase compared with control branches. Correlation analyses indicated a strong and consistent relationship between foliar red coloration and sugar concentrations, particularly glucose and fructose, in both girdled and control branches.
Keywords: Acer saccharum, carbohydrates, phloem transport, pigments, senescence
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
- This publication may be available in hard copy. Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact Sharon Hobrla, firstname.lastname@example.org if you notice any errors which make this publication unusable.
XML: View XML
Murakami, P.F.; Schaberg, P.G.; Shane, J.B. 2008. Stem girdling manipulates leaf sugar concentrations and anthocyanin expression in sugar maples trees during autumn. Tree Physiology. 28: 1467-1473.
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility