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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1111/nph.18603
|2 doi
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|a pubmed25n1161.xml
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|a (NLM)36346200
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Horning, Amber L
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Dirt cheap
|b an experimental test of controls on resource exchange in an ectomycorrhizal symbiosis
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|c 2023
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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 06.01.2023
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|a Date Revised 01.02.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2022 The Authors. New Phytologist © 2022 New Phytologist Foundation.
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|a To distinguish among hypotheses on the importance of resource-exchange ratios in outcomes of mutualisms, we measured resource (carbon (C), nitrogen (N), and phosphorus (P)) transfers and their ratios, between Pinus taeda seedlings and two ectomycorrhizal (EM) fungal species, Rhizopogon roseolus and Pisolithus arhizus in a laboratory experiment. We evaluated how ambient light affected those resource fluxes and ratios over three time periods (10, 20, and 30 wk) and the consequences for plant and fungal biomass accrual, in environmental chambers. Our results suggest that light availability is an important factor driving absolute fluxes of N, P, and C, but not exchange ratios, although its effects vary among EM fungal species. Declines in N : C and P : C exchange ratios over time, as soil nutrient availability likely declined, were consistent with predictions of biological market models. Absolute transfer of P was an important predictor of both plant and fungal biomass, consistent with the excess resource-exchange hypothesis, and N transfer to plants was positively associated with fungal biomass. Altogether, light effects on resource fluxes indicated mixed support for various theoretical frameworks, while results on biomass accrual better supported the excess resource-exchange hypothesis, although among-species variability is in need of further characterization
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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| 650 |
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|a Research Support, U.S. Gov't, Non-P.H.S.
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| 650 |
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|a Pinus taeda
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| 650 |
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|a ectomycorrhizal fungi
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| 650 |
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|a light
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| 650 |
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4 |
|a mutualisms
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| 650 |
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4 |
|a resource exchange
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| 650 |
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|a Carbon
|2 NLM
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| 650 |
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|a 7440-44-0
|2 NLM
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| 650 |
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|a Soil
|2 NLM
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| 700 |
1 |
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|a Koury, Stephanie S
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Meachum, Mariah
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kuehn, Kevin A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hoeksema, Jason D
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 237(2023), 3 vom: 01. Feb., Seite 987-998
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnas
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| 773 |
1 |
8 |
|g volume:237
|g year:2023
|g number:3
|g day:01
|g month:02
|g pages:987-998
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|u http://dx.doi.org/10.1111/nph.18603
|3 Volltext
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|h 987-998
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