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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1111/gcb.16886
|2 doi
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|a pubmed25n1199.xml
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|a (DE-627)NLM359894607
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|a (NLM)37489250
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Li, Huan
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Mycorrhizae enhance reactive minerals but reduce mineral-associated carbon
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| 264 |
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1 |
|c 2023
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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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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 20.09.2023
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|a Date Revised 31.10.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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| 520 |
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|a © 2023 John Wiley & Sons Ltd.
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|a Soil organic carbon (C) is the largest active C pool of Earth's surface and is thus vital in sustaining terrestrial productivity and climate stability. Arbuscular mycorrhizal fungi (AMF) form symbioses with most terrestrial plants and critically modulate soil C dynamics. Yet, it remains unclear whether and how AMF-root associations (i.e., mycorrhizae) interact with soil minerals to affect soil C cycling. Here we showed that the presence of both roots and AMF increased soil dissolved organic C and reactive Fe minerals, as well as litter decomposition and soil CO2 emissions. However, it reduced mineral-associated C. Also, high-resolution nanoscale secondary ion mass spectrometry images showed the existence of a thin coating (0.5-1.0 μm thick) of 56 Fe16 O- (Fe minerals) on the surface of 12 C14 N- (fungal biomass), illustrating the close physical association between fungal hyphae and soil Fe minerals. In addition, AMF genera were divergently related to reactive Fe minerals, with Glomus being positively but Paraglomus and Acaulospora negatively correlated with reactive Fe minerals. Moreover, the presence of roots and AMF, particularly when combined with litter addition, enhanced the abundances of several critical soil bacterial genera that are associated with the formation of reactive minerals in soils. A conceptual framework was further proposed to illustrate how AMF-root associations impact soil C cycling in the rhizosphere. Briefly, root exudates and the inoculated AMF not only stimulated the decomposition of litter and SOC and promoted the production of CO2 emission, but also drove soil C persistence by unlocking mineral elements and promoting the formation of reactive minerals. Together, these findings provide new insights into the mechanisms that underlie the formation of reactive minerals and have significant implications for understanding and managing soil C persistence
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4 |
|a Journal Article
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4 |
|a Glomus
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| 650 |
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4 |
|a arbuscular mycorrhizal fungi
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| 650 |
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4 |
|a litter decomposition
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| 650 |
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4 |
|a microbial community
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| 650 |
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4 |
|a mineral-associated organic carbon
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| 650 |
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4 |
|a soil carbon persistence
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| 650 |
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7 |
|a Carbon
|2 NLM
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| 650 |
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7 |
|a 7440-44-0
|2 NLM
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| 650 |
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7 |
|a Carbon Dioxide
|2 NLM
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| 650 |
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7 |
|a 142M471B3J
|2 NLM
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| 650 |
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7 |
|a Soil
|2 NLM
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| 650 |
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7 |
|a Minerals
|2 NLM
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| 700 |
1 |
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|a Yu, Guang-Hui
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hao, Liping
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Qiu, Yunpeng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hu, Shuijin
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Global change biology
|d 1999
|g 29(2023), 20 vom: 01. Okt., Seite 5941-5954
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnas
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| 773 |
1 |
8 |
|g volume:29
|g year:2023
|g number:20
|g day:01
|g month:10
|g pages:5941-5954
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| 856 |
4 |
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|u http://dx.doi.org/10.1111/gcb.16886
|3 Volltext
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