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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1111/nph.13444
|2 doi
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|a pubmed25n0829.xml
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|a (NLM)25952793
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Madritch, Michael D
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Condensed tannins increase nitrogen recovery by trees following insect defoliation
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|c 2015
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 20.06.2016
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2015 The Authors. New Phytologist © 2015 New Phytologist Trust.
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|a While the importance of plant secondary metabolites to belowground functioning is gaining recognition, the perception remains that secondary metabolites are produced for herbivore defense, whereas their belowground impacts are ecological by-products, or 'afterlife' effects. However, plants invest a significant amount of resources into production of secondary metabolites that have minimal effects on herbivore resistance (e.g. condensed tannins and insect herbivores). We show that genetically mediated variation in condensed tannin concentration is correlated with plant nitrogen recovery following a severe defoliation event. We used single-tree mesocosms labeled with (15) N to track nitrogen through both the frass and litter cycling pathways. High concentrations of leaf tannins in Populus tremuloides were correlated with (15) N recovery from frass within the same growing season and in the following growing season. Likewise, leaf tannin concentrations were also correlated with (15) N recovery from the litter of defoliated trees in the growing season following the defoliation event. Conversely, tannins were not well correlated with nitrogen uptake under conditions of nominal herbivory. Our results suggest that tannins may confer benefits in response to herbivore pressure through conserved belowground nitrogen cycling, rather than via defensive properties. Consequently, tannins may be considered as chemical mediators of tolerance rather than resistance
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|a Journal Article
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|a Research Support, U.S. Gov't, Non-P.H.S.
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|a Populus tremuloides
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| 650 |
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|a genotypic variation
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| 650 |
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|a herbivory
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|a nutrient cycling
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|a plant-insect interactions
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| 650 |
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|a tannin
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| 650 |
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|a Nitrogen Isotopes
|2 NLM
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| 650 |
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|a Proanthocyanidins
|2 NLM
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| 650 |
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|a Nitrogen
|2 NLM
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| 650 |
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|a N762921K75
|2 NLM
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| 700 |
1 |
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|a Lindroth, Richard L
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t The New phytologist
|d 1990
|g 208(2015), 2 vom: 04. Okt., Seite 410-20
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
1 |
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|g volume:208
|g year:2015
|g number:2
|g day:04
|g month:10
|g pages:410-20
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|u http://dx.doi.org/10.1111/nph.13444
|3 Volltext
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