skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Seasonal patterns of nonstructural carbohydrate reserves in four woody boreal species

Abstract

Plants store nonstructural carbohydrates (NSCs), such as sugars and starch, to use as carbon and energy sources for daily maintenance and growth needs as well as during times of stress. Allocation of NSCs to storage provides an important physiological strategy associated with future growth and survival, and thus understanding the seasonal patterns of NSC reserves provides insight into how species with different traits (e.g., growth form, leaf habit, wood anatomy) may respond to stress. We characterized the seasonal patterns of NSCs in four woody boreal plant species in Minnesota, USA. Sugar and starch concentrations were measured across the year in the roots and branches of two conifer trees, black spruce ( Picea mariana (Mill.) B.S.P.) and eastern tamarack ( Larix laricina (Du Roi) K. Koch), as well as in the leaves and branches of two evergreen broadleaf shrubs, bog Labrador tea ( Rhododendron groenlandicum (Oeder) Kron & Judd) and leatherleaf ( Chamaedaphne calyculata (L.) Moench). In general, seasonal variation was dominated by changes in starch across all organs and species. While similar seasonal patterns of NSCs were observed in the shrubs, different seasonal patterns were observed between the trees, particularly in the roots. Lastly, our results suggest that species-specific traitsmore » likely have consequences for organ-level storage dynamics, which may influence whole-plant growth and survival under global change.« less

Authors:
 [1];  [2]; ORCiD logo [2];  [3]
  1. Harvard Univ., Cambridge, MA (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Northern Arizona Univ., Flagstaff, AZ (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1482463
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of the Torrey Botanical Society
Additional Journal Information:
Journal Volume: 145; Journal Issue: 4; Journal ID: ISSN 1095-5674
Publisher:
Torrey Botanical Society
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; boreal; carbohydrates; carbon allocation; NSC; SPRUCE

Citation Formats

Furze, Morgan E., Jensen, Anna M., Warren, Jeffrey M., and Richardson, Andrew D. Seasonal patterns of nonstructural carbohydrate reserves in four woody boreal species. United States: N. p., 2018. Web. doi:10.3159/TORREY-D-18-00007.1.
Furze, Morgan E., Jensen, Anna M., Warren, Jeffrey M., & Richardson, Andrew D. Seasonal patterns of nonstructural carbohydrate reserves in four woody boreal species. United States. doi:10.3159/TORREY-D-18-00007.1.
Furze, Morgan E., Jensen, Anna M., Warren, Jeffrey M., and Richardson, Andrew D. Sat . "Seasonal patterns of nonstructural carbohydrate reserves in four woody boreal species". United States. doi:10.3159/TORREY-D-18-00007.1. https://www.osti.gov/servlets/purl/1482463.
@article{osti_1482463,
title = {Seasonal patterns of nonstructural carbohydrate reserves in four woody boreal species},
author = {Furze, Morgan E. and Jensen, Anna M. and Warren, Jeffrey M. and Richardson, Andrew D.},
abstractNote = {Plants store nonstructural carbohydrates (NSCs), such as sugars and starch, to use as carbon and energy sources for daily maintenance and growth needs as well as during times of stress. Allocation of NSCs to storage provides an important physiological strategy associated with future growth and survival, and thus understanding the seasonal patterns of NSC reserves provides insight into how species with different traits (e.g., growth form, leaf habit, wood anatomy) may respond to stress. We characterized the seasonal patterns of NSCs in four woody boreal plant species in Minnesota, USA. Sugar and starch concentrations were measured across the year in the roots and branches of two conifer trees, black spruce (Picea mariana (Mill.) B.S.P.) and eastern tamarack (Larix laricina (Du Roi) K. Koch), as well as in the leaves and branches of two evergreen broadleaf shrubs, bog Labrador tea (Rhododendron groenlandicum (Oeder) Kron & Judd) and leatherleaf (Chamaedaphne calyculata (L.) Moench). In general, seasonal variation was dominated by changes in starch across all organs and species. While similar seasonal patterns of NSCs were observed in the shrubs, different seasonal patterns were observed between the trees, particularly in the roots. Lastly, our results suggest that species-specific traits likely have consequences for organ-level storage dynamics, which may influence whole-plant growth and survival under global change.},
doi = {10.3159/TORREY-D-18-00007.1},
journal = {Journal of the Torrey Botanical Society},
issn = {1095-5674},
number = 4,
volume = 145,
place = {United States},
year = {2018},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Figures / Tables:

FIG. 1 FIG. 1: Seasonal dynamics of sugar (left column), starch (center column), and total NSC (right column) concentrations in roots from black spruce and eastern tamarack (top row, A–C) and in leaves from bog Labrador tea and leatherleaf (bottom row, D–F) sampled at the Marcell Experimental Forest in 2013. Symbols markmore » the start of the following phenological events: leaf out (X), flowering (asterisk), leaf fall (open circle). Error bars denote ± 1 SE of the mean. In some cases, the error is smaller than the size of the symbol.« less

Save / Share:
Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.