Search: onr:"swepub:oai:DiVA.org:umu-25704" >
An auxin gradient a...
An auxin gradient and maximum in the arabidopsis root apex shown by high-resolution cell-specific analysis of IAA distribution and synthesis
-
- Petersson, Sara (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Umeå universitet,Umeå Plant Science Centre (UPSC),Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology
-
- Johansson, Annika (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Umeå universitet,Umeå Plant Science Centre (UPSC),Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology
-
- Kowalczyk, Mariusz (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Umeå universitet,Umeå Plant Science Centre (UPSC),Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology
-
show more...
-
- Makoveychuk, Alexander (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Umeå universitet,Umeå Plant Science Centre (UPSC),Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology
-
- Wang, Jean Y (author)
- Department of Biology and Institute for Genome Sciences & Policy, Center for Systems Biology, Duke University, Durham, North Carolina 27708, USA
-
- Moritz, Thomas (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Umeå universitet,Umeå Plant Science Centre (UPSC),Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology
-
- Grebe, Markus, 1967- (author)
- Umeå universitet,Umeå Plant Science Centre (UPSC)
-
- Benfey, Philip N (author)
- Department of Biology and Institute for Genome Sciences & Policy, Center for Systems Biology, Duke University, Durham, North Carolina 27708, USA
-
- Sandberg, Göran, 1955- (author)
- Umeå universitet,Institutionen för fysiologisk botanik,Umeå Plant Science Centre (UPSC)
-
- Ljung, Karin (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Umeå universitet,Umeå Plant Science Centre (UPSC),Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology
-
show less...
-
(creator_code:org_t)
-
- 2009-06-02
- 2009
- English.
-
In: The Plant Cell. - : Oxford University Press (OUP). - 1040-4651 .- 1532-298X. ; 21:6, s. 1659-1668
- Related links:
-
http://www.plantcell...
-
show more...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
https://res.slu.se/i...
-
show less...
Abstract
Subject headings
Close
- Local concentration gradients of the plant growth regulator auxin (indole-3-acetic acid [IAA]) are thought to instruct the positioning of organ primordia and stem cell niches and to direct cell division, expansion, and differentiation. High-resolution measurements of endogenous IAA concentrations in support of the gradient hypothesis are required to substantiate this hypothesis. Here, we introduce fluorescence-activated cell sorting of green fluorescent protein-marked cell types combined with highly sensitive mass spectrometry methods as a novel means for analyses of IAA distribution and metabolism at cellular resolution. Our results reveal the presence of IAA concentration gradients within the Arabidopsis thaliana root tip with a distinct maximum in the organizing quiescent center of the root apex. We also demonstrate that the root apex provides an important source of IAA and that cells of all types display a high synthesis capacity, suggesting a substantial contribution of local biosynthesis to auxin homeostasis in the root tip. Our results indicate that local biosynthesis and polar transport combine to produce auxin gradients and maxima in the root tip.
Subject headings
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Skogsvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Forest Science (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
-
Petersson, Sara
-
Johansson, Annik ...
-
Kowalczyk, Mariu ...
-
Makoveychuk, Ale ...
-
Wang, Jean Y
-
Moritz, Thomas
-
show more...
-
Grebe, Markus, 1 ...
-
Benfey, Philip N
-
Sandberg, Göran, ...
-
Ljung, Karin
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Biological Scien ...
-
- AGRICULTURAL SCIENCES
-
AGRICULTURAL SCI ...
-
and Agriculture Fore ...
-
and Forest Science
- Articles in the publication
-
The Plant Cell
- By the university
-
Umeå University
-
Swedish University of Agricultural Sciences