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231223s2010 xx |||||o 00| ||eng c |
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|a 10.1111/j.1469-8137.2010.03226.x
|2 doi
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|a pubmed24n0656.xml
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
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|a Nottingham, Andrew T
|e verfasserin
|4 aut
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|a Arbuscular mycorrhizal mycelial respiration in a moist tropical forest
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|c 2010
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 20.09.2010
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|a Date Revised 14.04.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a *Arbuscular mycorrhizal fungi (AMF) are widespread in tropical forests and represent a major sink of photosynthate, yet their contribution to soil respiration in such ecosystems remains unknown. *Using in-growth mesocosms we measured AMF mycelial respiration in two separate experiments: (1) an experiment in a semi-evergreen moist tropical forest, and (2) an experiment with 6-m-tall Pseudobombax septenatum in 4.5-m(3) containers, for which we also determined the dependence of AMF mycelial respiration on the supply of carbon from the plant using girdling and root-cutting treatments. *In the forest, AMF mycelia respired carbon at a rate of 1.4 t ha(-1) yr(-1), which accounted for 14 +/- 6% of total soil respiration and 26 +/- 12% of root-derived respiration. For P. septenatum, 40 +/- 6% of root-derived respiration originated from AMF mycelia and carbon was respired < 4 h after its supply from roots. *We conclude that arbuscular mycorrhizal mycelial respiration can be substantial in lowland tropical forests. As it is highly dependent on the recent supply of carbon from roots, a function of aboveground fixation, AMF mycelial respiration is therefore an important pathway of carbon flux from tropical forest trees to the atmosphere
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Soil
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|a Water
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|a Turner, Benjamin L
|e verfasserin
|4 aut
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|a Winter, Klaus
|e verfasserin
|4 aut
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|a van der Heijden, Marcel G A
|e verfasserin
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|a Tanner, Edmund V J
|e verfasserin
|4 aut
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|i Enthalten in
|t The New phytologist
|d 1979
|g 186(2010), 4 vom: 01. Juni, Seite 957-967
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|x 1469-8137
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