The amount of parenchyma and living fibers affects storage of nonstructural carbohydrates in young stems and roots of temperate trees
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62690094%3A18470%2F16%3A50005560" target="_blank" >RIV/62690094:18470/16:50005560 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.3732/ajb.1500489" target="_blank" >http://dx.doi.org/10.3732/ajb.1500489</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3732/ajb.1500489" target="_blank" >10.3732/ajb.1500489</a>
Alternative languages
Result language
angličtina
Original language name
The amount of parenchyma and living fibers affects storage of nonstructural carbohydrates in young stems and roots of temperate trees
Original language description
PREMISE OF THE STUDY: Concentrations of nonstructural carbohydrates (NSCs) are used as proxies for the net carbon balance of trees and as indicators of carbon starvation resulting from environmental stress. Woody organs are the largest NSC-storing compartments in forest ecosystems; therefore, it is essential to understand the factors that aff ect the size of this important storage pool. In wood, NSC are predominantly deposited in ray and axial parenchyma (RAP); however, direct links between nutrient storage and RAP anatomy have not yet been established. Here, we tested whether the NSC storage capacity of wood is infl uenced by the amount of RAP. METHODS: We measured NSC concentrations and RAP fractions in root and stem sapwood of 12 temperate species sampled at the onset of winter dormancy and in stem sapwood of four tropical trees growing in an evergreen lowland rainforest. The patterns of starch distribution were visualized by staining with Lugol's solution. KEY RESULTS: The concentration of NSCs in sapwood of temperate trees scales tightly with the amount of RAP and living fi bers (LFs), with almost all RAP and LFs being densely packed with starch grains. In contrast, the tropical species had lower NSC concentrations despite their higher RAP and LFs fraction and had considerable interspecifi c diff erences in starch distribution. CONCLUSIONS: The diff erences in RAP and LFs abundance aff ect the ability of sapwood to store NSC in temperate trees, whereas a more diverse set of functions of RAP might be pronounced in species growing in a tropical environment with little seasonality.
Czech name
—
Czech description
—
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EF - Botany
OECD FORD branch
—
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
American journal of botany
ISSN
0002-9122
e-ISSN
—
Volume of the periodical
103
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
603-612
UT code for WoS article
000374144000005
EID of the result in the Scopus database
—