Home About Browse Search
Svenska


Sucrose synthase determines carbon allocation in developing wood and alters carbon flow at the whole tree level in aspen

Dominguez, Guadalupe and Donev, Evgeniy and Derba-Maceluch, Marta and Bünder, Anne and Hedenstrom, Mattias and Tomaskova, Ivana and Mellerowicz, Ewa and Niittylä, Totte (2021). Sucrose synthase determines carbon allocation in developing wood and alters carbon flow at the whole tree level in aspen. New Phytologist. 229 , 186-198
[Research article]

[img] PDF
1MB

Abstract

Despite the ecological and industrial importance of biomass accumulation in wood, the control of carbon (C) allocation to this tissue and to other tree tissues remain poorly understood. We studied sucrose synthase (SUS) to clarify its role in biomass formation and C metabolism at the whole tree level in hybrid aspen (Populus tremula x tremuloides). To this end, we analysed source leaves, phloem, developing wood, and roots ofSUSRNAitrees using a combination of metabolite profiling,(13)CO(2)pulse labelling experiments, and long-term field experiments. The glasshouse grownSUSRNAitrees exhibited a mild stem phenotype together with a reduction in wood total C. The(13)CO(2)pulse labelling experiments showed an alteration in the C flow in all the analysed tissues, indicating that SUS affects C metabolism at the whole tree level. This was confirmed when theSUSRNAitrees were grown in the field over a 5-yr period; their stem height, diameter and biomass were substantially reduced. These results establish that SUS influences C allocation to developing wood, and that it affects C metabolism at the whole tree level.

Authors/Creators:Dominguez, Guadalupe and Donev, Evgeniy and Derba-Maceluch, Marta and Bünder, Anne and Hedenstrom, Mattias and Tomaskova, Ivana and Mellerowicz, Ewa and Niittylä, Totte
Title:Sucrose synthase determines carbon allocation in developing wood and alters carbon flow at the whole tree level in aspen
Series Name/Journal:New Phytologist
Year of publishing :2021
Volume:229
Page range:186-198
Number of Pages:13
Publisher:WILEY
ISSN:0028-646X
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Botany
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
Keywords:C-13 labelling, aspen, biomass, carbon allocation, Populus, sucrose synthase
URN:NBN:urn:nbn:se:slu:epsilon-p-112057
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-112057
Additional ID:
Type of IDID
DOI10.1111/nph.16721
Web of Science (WoS)000546169100001
ID Code:24344
Faculty:S - Faculty of Forest Sciences
Department:(S) > Dept. of Forest Genetics and Plant Physiology
Deposited By: SLUpub Connector
Deposited On:01 Jun 2021 14:03
Metadata Last Modified:01 Jun 2021 14:11

Repository Staff Only: item control page

Downloads

Downloads per year (since September 2012)

View more statistics

Downloads
Hits