Home > Publications database > SNF1-related kinases allow plants to tolerate herbivory by allocating carbon to roots > print

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017 _ _ |a This version is available at http://www.pnas.org, http://dx.doi.org/10.1073/pnas.0602316103
024 7 _ |a pmid:16912118
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024 7 _ |a pmc:PMC1568949
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024 7 _ |a 10.1073/pnas.0602316103
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024 7 _ |a WOS:000240035900052
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024 7 _ |a 2128/2669
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037 _ _ |a PreJuSER-52212
041 _ _ |a eng
082 _ _ |a 000
084 _ _ |2 WoS
|a Multidisciplinary Sciences
100 1 _ |a Schwachtje, J.
|b 0
|0 P:(DE-HGF)0
245 _ _ |a SNF1-related kinases allow plants to tolerate herbivory by allocating carbon to roots
260 _ _ |a Washington, DC
|b Academy
|c 2006
300 _ _ |a 12935 - 12940
336 7 _ |a Journal Article
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336 7 _ |a article
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440 _ 0 |a Proceedings of the National Academy of Sciences of the United States of America
|x 0027-8424
|0 5100
|y 34
|v 103
500 _ _ |a Record converted from VDB: 12.11.2012
520 _ _ |a Herbivore attack elicits costly defenses that are known to decrease plant fitness by using resources that are normally slated for growth and reproduction. Additionally, plants have evolved mechanisms for tolerating attack, which are not understood on a molecular level. Using 11C-photosynthate labeling as well as sugar and enzyme measurements, we found rapid changes in sink-source relations in the annual Nicotiana attenuata after simulated herbivore attacks, which increased the allocation of sugars to roots. This herbivore-induced response is regulated by the beta-subunit of an SnRK1 (SNF1-related kinase) protein kinase, GAL83, transcripts of which are rapidly down-regulated in source leaves after herbivore attack and, when silenced, increase assimilate transport to roots. This C diversion response is activated by herbivore-specific elicitors and is independent of jasmonate signaling, which regulates most of the plant's defense responses. Herbivore attack during early stages of development increases root reserves, which, in turn, delays senescence and prolongs flowering. That attacked GAL83-silenced plants use their enhanced root reserves to prolong reproduction demonstrates that SnRK1 alters resource allocation so that plants better tolerate herbivory. This tolerance mechanism complements the likely defensive value of diverting resources to a less vulnerable location within the plant.
536 _ _ |a Terrestrische Umwelt
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588 _ _ |a Dataset connected to Web of Science, Pubmed
650 _ 2 |2 MeSH
|a Animals
650 _ 2 |2 MeSH
|a Carbon: metabolism
650 _ 2 |2 MeSH
|a Feeding Behavior
650 _ 2 |2 MeSH
|a Molecular Sequence Data
650 _ 2 |2 MeSH
|a Plant Roots: growth & development
650 _ 2 |2 MeSH
|a Plant Roots: metabolism
650 _ 2 |2 MeSH
|a Plants, Genetically Modified
650 _ 2 |2 MeSH
|a Protein-Serine-Threonine Kinases: genetics
650 _ 2 |2 MeSH
|a Protein-Serine-Threonine Kinases: metabolism
650 _ 2 |2 MeSH
|a Tobacco: enzymology
650 _ 2 |2 MeSH
|a Tobacco: genetics
650 _ 2 |2 MeSH
|a Tobacco: growth & development
650 _ 2 |2 MeSH
|a Tobacco: metabolism
650 _ 7 |0 7440-44-0
|2 NLM Chemicals
|a Carbon
650 _ 7 |0 EC 2.7.11.1
|2 NLM Chemicals
|a Protein-Serine-Threonine Kinases
650 _ 7 |a J
|2 WoSType
653 2 0 |2 Author
|a carbon-11
653 2 0 |2 Author
|a defense
653 2 0 |2 Author
|a plant-herbivore interactions
653 2 0 |2 Author
|a tolerance
700 1 _ |a Minchin, P. E. H.
|b 1
|u FZJ
|0 P:(DE-Juel1)VDB23736
700 1 _ |a Jahnke, S.
|b 2
|u FZJ
|0 P:(DE-Juel1)129336
700 1 _ |a van Dongen, J. T.
|b 3
|0 P:(DE-HGF)0
700 1 _ |a Schittko, U.
|b 4
|0 P:(DE-HGF)0
700 1 _ |a Baldwin, I. T.
|b 5
|0 P:(DE-HGF)0
773 _ _ |a 10.1073/pnas.0602316103
|g Vol. 103, p. 12935 - 12940
|p 12935 - 12940
|q 103<12935 - 12940
|0 PERI:(DE-600)1461794-8
|t Proceedings of the National Academy of Sciences of the United States of America
|v 103
|y 2006
|x 0027-8424
856 7 _ |2 Pubmed Central
|u http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1568949
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