Root exudates contribute to belowground ecosystem hotspots: A review

Root exudates are an essential carrier for material cycling, energy exchange, and information transfer between the belowground parts of plants and the soil. We synthesize current properties and regulators of root exudates and their role in the belowground ecosystem as substances cycle and signal reg...

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Main Authors: Wenming Ma, Sihong Tang, Zhuoma Dengzeng, Dong Zhang, Ting Zhang, Xiangli Ma
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-10-01
Series:Frontiers in Microbiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmicb.2022.937940/full
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author Wenming Ma
Sihong Tang
Zhuoma Dengzeng
Dong Zhang
Ting Zhang
Xiangli Ma
author_facet Wenming Ma
Sihong Tang
Zhuoma Dengzeng
Dong Zhang
Ting Zhang
Xiangli Ma
author_sort Wenming Ma
collection DOAJ
description Root exudates are an essential carrier for material cycling, energy exchange, and information transfer between the belowground parts of plants and the soil. We synthesize current properties and regulators of root exudates and their role in the belowground ecosystem as substances cycle and signal regulation. We discussed the composition and amount of root exudates and their production mechanism, indicating that plant species, growth stage, environmental factors, and microorganisms are primary influence factors. The specific mechanisms by which root secretions mobilize the soil nutrients were summarized. First, plants improve the nutrient status of the soil by releasing organic acids for acidification and chelation. Then, root exudates accelerated the SOC turnover due to their dual impacts, forming and destabilizing aggregates and MASOC. Eventually, root exudates mediate the plant–plant interaction and plant–microbe interaction. Additionally, a summary of the current collection methods of root exudates is presented.
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spelling doaj.art-72bcbb439ec74fd0ad991221bd7f3a782022-12-22T04:29:26ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2022-10-011310.3389/fmicb.2022.937940937940Root exudates contribute to belowground ecosystem hotspots: A reviewWenming MaSihong TangZhuoma DengzengDong ZhangTing ZhangXiangli MaRoot exudates are an essential carrier for material cycling, energy exchange, and information transfer between the belowground parts of plants and the soil. We synthesize current properties and regulators of root exudates and their role in the belowground ecosystem as substances cycle and signal regulation. We discussed the composition and amount of root exudates and their production mechanism, indicating that plant species, growth stage, environmental factors, and microorganisms are primary influence factors. The specific mechanisms by which root secretions mobilize the soil nutrients were summarized. First, plants improve the nutrient status of the soil by releasing organic acids for acidification and chelation. Then, root exudates accelerated the SOC turnover due to their dual impacts, forming and destabilizing aggregates and MASOC. Eventually, root exudates mediate the plant–plant interaction and plant–microbe interaction. Additionally, a summary of the current collection methods of root exudates is presented.https://www.frontiersin.org/articles/10.3389/fmicb.2022.937940/fullplant nutritionSOCallelopathysoil microorganismaggregates
spellingShingle Wenming Ma
Sihong Tang
Zhuoma Dengzeng
Dong Zhang
Ting Zhang
Xiangli Ma
Root exudates contribute to belowground ecosystem hotspots: A review
Frontiers in Microbiology
plant nutrition
SOC
allelopathy
soil microorganism
aggregates
title Root exudates contribute to belowground ecosystem hotspots: A review
title_full Root exudates contribute to belowground ecosystem hotspots: A review
title_fullStr Root exudates contribute to belowground ecosystem hotspots: A review
title_full_unstemmed Root exudates contribute to belowground ecosystem hotspots: A review
title_short Root exudates contribute to belowground ecosystem hotspots: A review
title_sort root exudates contribute to belowground ecosystem hotspots a review
topic plant nutrition
SOC
allelopathy
soil microorganism
aggregates
url https://www.frontiersin.org/articles/10.3389/fmicb.2022.937940/full
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AT zhuomadengzeng rootexudatescontributetobelowgroundecosystemhotspotsareview
AT dongzhang rootexudatescontributetobelowgroundecosystemhotspotsareview
AT tingzhang rootexudatescontributetobelowgroundecosystemhotspotsareview
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