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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1111/nph.15224
|2 doi
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|a pubmed24n0947.xml
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|a (DE-627)NLM284172081
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|a (NLM)29770969
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Schönbeck, Leonie
|e verfasserin
|4 aut
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|a Homeostatic levels of nonstructural carbohydrates after 13 yr of drought and irrigation in Pinus sylvestris
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|c 2018
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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
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|2 rdacarrier
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|a Date Completed 25.09.2019
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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 © 2018 The Authors. New Phytologist © 2018 New Phytologist Trust.
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|a Nonstructural carbohydrates (NSCs) are important for the growth and survival of trees. Drought may lead to a decrease in tree growth and to NSC depletion, whereas increased soil moisture in otherwise dry ecosystems may increase growth and NSC concentrations. A long-term (13 yr) irrigation experiment was conducted in a Pinus sylvestris-dominated forest located at the dry margin of the species in southern Switzerland. We measured the relative leaf area, growth, NSCs, needle δ13 C, [N] and [P] in trees on control and irrigated plots. Irrigation resulted in higher growth rates and carbon isotope discrimination, but did not alter NSC levels. Growth and NSC decreased with decreasing leaf area in both treatments, but NSC did not correlate with leaf-level gas exchange indices, such as foliar δ13 C, [N] or [P]. A legacy effect was shown, as trees with initially low leaf area had limited ability to respond to prolonged irrigation. The NSC constancy across treatments provides evidence that carbohydrate storage may stay constant when climate changes are sufficiently slow to allow acclimation. Moreover, we speculate that total leaf area, rather than leaf gas exchange per unit leaf area, drives the variation in whole-tree carbohydrate dynamics in this system
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Pinus sylvestris
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|a acclimation
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|a growth
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|a homeostasis
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|a irrigation
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|a nonstructural carbohydrates (NSCs)
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|a starch
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|a sugar
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|a Carbohydrates
|2 NLM
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|a Carbon Isotopes
|2 NLM
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|a Phosphorus
|2 NLM
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|a 27YLU75U4W
|2 NLM
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|a Starch
|2 NLM
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|a 9005-25-8
|2 NLM
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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 Gessler, Arthur
|e verfasserin
|4 aut
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|a Hoch, Günter
|e verfasserin
|4 aut
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|a McDowell, Nate G
|e verfasserin
|4 aut
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|a Rigling, Andreas
|e verfasserin
|4 aut
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|a Schaub, Marcus
|e verfasserin
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|a Li, Mai-He
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 219(2018), 4 vom: 17. Sept., Seite 1314-1324
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:219
|g year:2018
|g number:4
|g day:17
|g month:09
|g pages:1314-1324
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|u http://dx.doi.org/10.1111/nph.15224
|3 Volltext
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