Search: onr:"swepub:oai:DiVA.org:umu-71620" >
Leaf Fructose Conte...
Leaf Fructose Content Is Controlled by the Vacuolar Transporter SWEET17 in Arabidopsis
-
Chardon, Fabien (author)
-
Bedu, Magali (author)
-
Calenge, Fanny (author)
-
show more...
-
Klemens, Patrick A. W. (author)
-
- Spinner, Lara (author)
- Umeå universitet,Umeå Plant Science Centre (UPSC)
-
Clement, Gilles (author)
-
Chietera, Giorgiana (author)
-
Leran, Sophie (author)
-
Ferrand, Marina (author)
-
Lacombe, Benoit (author)
-
Loudet, Olivier (author)
-
Dinant, Sylvie (author)
-
- Bellini, Catherine (author)
- Umeå universitet,Institutionen för fysiologisk botanik
-
Neuhaus, H. Ekkehard (author)
-
Daniel-Vedele, Francoise (author)
-
Krapp, Anne (author)
-
show less...
-
(creator_code:org_t)
- Elsevier BV, 2013
- 2013
- English.
-
In: Current Biology. - : Elsevier BV. - 0960-9822 .- 1879-0445. ; 23:8, s. 697-702
- Related links:
-
http://www.cell.com/...
-
show more...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- In higher plants, soluble sugars are mainly present as sucrose, glucose, and fructose [1]. Sugar allocation is based on both source-to-sink transport and intracellular transport between the different organelles [2,3] and depends on actual plant requirements [4]. Under abiotic stress conditions, such as nitrogen limitation, carbohydrates accumulate in plant cells [5]. Despite an increasing number of genetic studies [6, 7], the genetic architecture determining carbohydrate composition is poorly known. Using a quantitative genetics approach, we determined that the carrier protein SWEET17 is a major factor controlling fructose content in Arabidopsis leaves. We observed that when SWEET17 expression is reduced, either by induced or natural variation, fructose accumulates in leaves, suggesting an enhanced storage capacity. Subcellular localization of SWEET17-GFP to the tonoplast and functional expression in Xenopus oocytes showed that SWEET17 is the first vacuolar fructose transporter to be characterized in plants. Physiological studies in planta provide evidence that SWEET17 acts to export fructose out of the vacuole. Overall, our results suggest that natural variation in leaf fructose levels is controlled by the vacuolar fructose transporter SWEET17. SWEET17 is highly conserved across the plant kingdom; thus, these findings offer future possibilities to modify carbohydrate partitioning in crops.
Subject headings
- NATURVETENSKAP -- Biologi -- Botanik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Botany (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
-
Chardon, Fabien
-
Bedu, Magali
-
Calenge, Fanny
-
Klemens, Patrick ...
-
Spinner, Lara
-
Clement, Gilles
-
show more...
-
Chietera, Giorgi ...
-
Leran, Sophie
-
Ferrand, Marina
-
Lacombe, Benoit
-
Loudet, Olivier
-
Dinant, Sylvie
-
Bellini, Catheri ...
-
Neuhaus, H. Ekke ...
-
Daniel-Vedele, F ...
-
Krapp, Anne
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Biological Scien ...
-
and Botany
- Articles in the publication
-
Current Biology
- By the university
-
Umeå University