Next Article in Journal
Hormonal Control of Lateral Root and Nodule Development in Legumes
Next Article in Special Issue
Sulfite Oxidase Activity Is Essential for Normal Sulfur, Nitrogen and Carbon Metabolism in Tomato Leaves
Previous Article in Journal
Cell Wall Amine Oxidases: New Players in Root Xylem Differentiation under Stress Conditions
Previous Article in Special Issue
Keeping Control: The Role of Senescence and Development in Plant Pathogenesis and Defense
Article Menu

Export Article

Open AccessArticle
Plants 2015, 4(3), 505-522; doi:10.3390/plants4030505

Early Autumn Senescence in Red Maple (Acer rubrum L.) Is Associated with High Leaf Anthocyanin Content

Department of Biology, Laurentian University, 935 Ramsey Lake Road, Sudbury, ON P3E 2H6, Canada
*
Author to whom correspondence should be addressed.
Academic Editor: Salma Balazadeh
Received: 24 June 2015 / Revised: 24 July 2015 / Accepted: 30 July 2015 / Published: 5 August 2015
(This article belongs to the Special Issue Plant Senescence)
View Full-Text   |   Download PDF [1306 KB, uploaded 5 August 2015]   |  

Abstract

Several theories exist about the role of anthocyanins in senescing leaves. To elucidate factors contributing to variation in autumn leaf anthocyanin contents among individual trees, we analysed anthocyanins and other leaf traits in 27 individuals of red maple (Acer rubrum L.) over two growing seasons in the context of timing of leaf senescence. Red maple usually turns bright red in the autumn, but there is considerable variation among the trees. Leaf autumn anthocyanin contents were consistent between the two years of investigation. Autumn anthocyanin content strongly correlated with degree of chlorophyll degradation mid to late September, early senescing leaves having the highest concentrations of anthocyanins. It also correlated positively with leaf summer chlorophyll content and dry matter content, and negatively with specific leaf area. Time of leaf senescence and anthocyanin contents correlated with soil pH and with canopy openness. We conclude that the importance of anthocyanins in protection of leaf processes during senescence depends on the time of senescence. Rather than prolonging the growing season by enabling a delayed senescence, autumn anthocyanins in red maple in Ontario are important when senescence happens early, possibly due to the higher irradiance and greater danger of oxidative damage early in the season. View Full-Text
Keywords: Acer rubrum; anthocyanins; autumn senescence; time of senescence; SLA; leaf dry matter content; tannins Acer rubrum; anthocyanins; autumn senescence; time of senescence; SLA; leaf dry matter content; tannins
Figures

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Anderson, R.; Ryser, P. Early Autumn Senescence in Red Maple (Acer rubrum L.) Is Associated with High Leaf Anthocyanin Content. Plants 2015, 4, 505-522.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Plants EISSN 2223-7747 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top