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Source-to-sink transport of sugar and regulation by environmental factors

Overview of attention for article published in Frontiers in Plant Science, January 2013
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Title
Source-to-sink transport of sugar and regulation by environmental factors
Published in
Frontiers in Plant Science, January 2013
DOI 10.3389/fpls.2013.00272
Pubmed ID
Authors

Remi Lemoine, Sylvain La Camera, Rossitza Atanassova, Fabienne Dédaldéchamp, Thierry Allario, Nathalie Pourtau, Jean-Louis Bonnemain, Maryse Laloi, Pierre Coutos-Thévenot, Laurence Maurousset, Mireille Faucher, Christine Girousse, Pauline Lemonnier, Jonathan Parrilla, Mickael Durand

Abstract

Source-to-sink transport of sugar is one of the major determinants of plant growth and relies on the efficient and controlled distribution of sucrose (and some other sugars such as raffinose and polyols) across plant organs through the phloem. However, sugar transport through the phloem can be affected by many environmental factors that alter source/sink relationships. In this paper, we summarize current knowledge about the phloem transport mechanisms and review the effects of several abiotic (water and salt stress, mineral deficiency, CO2, light, temperature, air, and soil pollutants) and biotic (mutualistic and pathogenic microbes, viruses, aphids, and parasitic plants) factors. Concerning abiotic constraints, alteration of the distribution of sugar among sinks is often reported, with some sinks as roots favored in case of mineral deficiency. Many of these constraints impair the transport function of the phloem but the exact mechanisms are far from being completely known. Phloem integrity can be disrupted (e.g., by callose deposition) and under certain conditions, phloem transport is affected, earlier than photosynthesis. Photosynthesis inhibition could result from the increase in sugar concentration due to phloem transport decrease. Biotic interactions (aphids, fungi, viruses…) also affect crop plant productivity. Recent breakthroughs have identified some of the sugar transporters involved in these interactions on the host and pathogen sides. The different data are discussed in relation to the phloem transport pathways. When possible, the link with current knowledge on the pathways at the molecular level will be highlighted.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 1,091 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 6 <1%
Germany 3 <1%
France 3 <1%
India 2 <1%
United Kingdom 2 <1%
Brazil 2 <1%
South Africa 1 <1%
Finland 1 <1%
Netherlands 1 <1%
Other 4 <1%
Unknown 1066 98%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 245 22%
Student > Master 157 14%
Researcher 153 14%
Student > Bachelor 96 9%
Student > Doctoral Student 65 6%
Other 139 13%
Unknown 236 22%
Readers by discipline Count As %
Agricultural and Biological Sciences 601 55%
Biochemistry, Genetics and Molecular Biology 107 10%
Environmental Science 46 4%
Engineering 13 1%
Chemistry 11 1%
Other 43 4%
Unknown 270 25%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 24 July 2013.
All research outputs
#20,196,270
of 22,714,025 outputs
Outputs from Frontiers in Plant Science
#15,851
of 19,950 outputs
Outputs of similar age
#248,772
of 280,752 outputs
Outputs of similar age from Frontiers in Plant Science
#241
of 517 outputs
Altmetric has tracked 22,714,025 research outputs across all sources so far. This one is in the 1st percentile – i.e., 1% of other outputs scored the same or lower than it.
So far Altmetric has tracked 19,950 research outputs from this source. They receive a mean Attention Score of 4.0. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 280,752 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 517 others from the same source and published within six weeks on either side of this one. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.