Litter Decomposition of Imperata cylindrica in a Copper Tailing Areas With Different Restoration History: Fungal Community Dynamics and Driving Factors

Microorganisms drive litter decomposition while maintaining the chemical cycle of ecosystems. We used the dominant vegetation (Imperata cylindrica) in the mining area selected for this study for this experiment to explore fungal community characteristics, key fungal groups, and their associative dri...

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Autores principales:	Tong Jia, Xuerong Wang, Tingyan Guo, Baofeng Chai
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	fungal community litter properties decomposition dynamics Imperata cylindrica copper mining area Microbiology QR1-502
Acceso en línea:	https://doaj.org/article/799376bfea244081aa06e49c3d65fe91
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spelling	oai:doaj.org-article:799376bfea244081aa06e49c3d65fe912021-11-22T11:59:25ZLitter Decomposition of Imperata cylindrica in a Copper Tailing Areas With Different Restoration History: Fungal Community Dynamics and Driving Factors1664-302X10.3389/fmicb.2021.780015https://doaj.org/article/799376bfea244081aa06e49c3d65fe912021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fmicb.2021.780015/fullhttps://doaj.org/toc/1664-302XMicroorganisms drive litter decomposition while maintaining the chemical cycle of ecosystems. We used the dominant vegetation (Imperata cylindrica) in the mining area selected for this study for this experiment to explore fungal community characteristics, key fungal groups, and their associative driving factors during I. cylindrica litter decomposition. Maximum litter C/N values occurred 100days after the commencement of the decomposition experiment during all different recovery years in this copper tailings area. Heavy metals in litter [copper (Cu), zinc (Zn), plumbum (Pb), and cadmium (Cd)] accumulated gradually with decomposition. The dominant fungal phyla observed in the community were Ascomycota and Basidiomycota, while the classes Sordariomycetes and Eurotiomycetes significantly increased as litter decomposition progressed. Degrees of connectivity and interaction between fungal communities were highest during the early litter decomposition stage. Sordariomycetes, Dothideomycetes, and Leotiomycetes all played critical roles in maintaining fungal community relationships. The effect of physicochemical properties and enzyme activities in I. cylindrica litter was significant on the dominant fungi, while driving factors that affected fungal communities differed over different recovery stages. Total nitrogen (TN), heavy metals, pH, and enzyme activities in the little were significantly correlated with fungal community composition. Litter properties throughout the litter decomposition process mainly affected the dynamics of the fungal community structure. The main environmental factors that affected fungal community structure were copper content and pH. Dichotomopilus, Trichoderma, Knufia, Phialophora, Oxyporus, and Monocillium, which all played important roles in litter decomposition, positively correlated with heavy metals, sucrase, and catalase. Finally, results from this study will help us better clarify litter decomposition mechanisms in degraded ecosystems as well as provide a scientific basis for improving species cycling and nutrient transformation efficiency in mining ecosystems.Tong JiaXuerong WangTingyan GuoBaofeng ChaiFrontiers Media S.A.articlefungal communitylitter propertiesdecomposition dynamicsImperata cylindricacopper mining areaMicrobiologyQR1-502ENFrontiers in Microbiology, Vol 12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	fungal community litter properties decomposition dynamics Imperata cylindrica copper mining area Microbiology QR1-502
spellingShingle	fungal community litter properties decomposition dynamics Imperata cylindrica copper mining area Microbiology QR1-502 Tong Jia Xuerong Wang Tingyan Guo Baofeng Chai Litter Decomposition of Imperata cylindrica in a Copper Tailing Areas With Different Restoration History: Fungal Community Dynamics and Driving Factors
description	Microorganisms drive litter decomposition while maintaining the chemical cycle of ecosystems. We used the dominant vegetation (Imperata cylindrica) in the mining area selected for this study for this experiment to explore fungal community characteristics, key fungal groups, and their associative driving factors during I. cylindrica litter decomposition. Maximum litter C/N values occurred 100days after the commencement of the decomposition experiment during all different recovery years in this copper tailings area. Heavy metals in litter [copper (Cu), zinc (Zn), plumbum (Pb), and cadmium (Cd)] accumulated gradually with decomposition. The dominant fungal phyla observed in the community were Ascomycota and Basidiomycota, while the classes Sordariomycetes and Eurotiomycetes significantly increased as litter decomposition progressed. Degrees of connectivity and interaction between fungal communities were highest during the early litter decomposition stage. Sordariomycetes, Dothideomycetes, and Leotiomycetes all played critical roles in maintaining fungal community relationships. The effect of physicochemical properties and enzyme activities in I. cylindrica litter was significant on the dominant fungi, while driving factors that affected fungal communities differed over different recovery stages. Total nitrogen (TN), heavy metals, pH, and enzyme activities in the little were significantly correlated with fungal community composition. Litter properties throughout the litter decomposition process mainly affected the dynamics of the fungal community structure. The main environmental factors that affected fungal community structure were copper content and pH. Dichotomopilus, Trichoderma, Knufia, Phialophora, Oxyporus, and Monocillium, which all played important roles in litter decomposition, positively correlated with heavy metals, sucrase, and catalase. Finally, results from this study will help us better clarify litter decomposition mechanisms in degraded ecosystems as well as provide a scientific basis for improving species cycling and nutrient transformation efficiency in mining ecosystems.
format	article
author	Tong Jia Xuerong Wang Tingyan Guo Baofeng Chai
author_facet	Tong Jia Xuerong Wang Tingyan Guo Baofeng Chai
author_sort	Tong Jia
title	Litter Decomposition of Imperata cylindrica in a Copper Tailing Areas With Different Restoration History: Fungal Community Dynamics and Driving Factors
title_short	Litter Decomposition of Imperata cylindrica in a Copper Tailing Areas With Different Restoration History: Fungal Community Dynamics and Driving Factors
title_full	Litter Decomposition of Imperata cylindrica in a Copper Tailing Areas With Different Restoration History: Fungal Community Dynamics and Driving Factors
title_fullStr	Litter Decomposition of Imperata cylindrica in a Copper Tailing Areas With Different Restoration History: Fungal Community Dynamics and Driving Factors
title_full_unstemmed	Litter Decomposition of Imperata cylindrica in a Copper Tailing Areas With Different Restoration History: Fungal Community Dynamics and Driving Factors
title_sort	litter decomposition of imperata cylindrica in a copper tailing areas with different restoration history: fungal community dynamics and driving factors
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/799376bfea244081aa06e49c3d65fe91
work_keys_str_mv	AT tongjia litterdecompositionofimperatacylindricainacoppertailingareaswithdifferentrestorationhistoryfungalcommunitydynamicsanddrivingfactors AT xuerongwang litterdecompositionofimperatacylindricainacoppertailingareaswithdifferentrestorationhistoryfungalcommunitydynamicsanddrivingfactors AT tingyanguo litterdecompositionofimperatacylindricainacoppertailingareaswithdifferentrestorationhistoryfungalcommunitydynamicsanddrivingfactors AT baofengchai litterdecompositionofimperatacylindricainacoppertailingareaswithdifferentrestorationhistoryfungalcommunitydynamicsanddrivingfactors
_version_	1718417742548172800

Litter Decomposition of Imperata cylindrica in a Copper Tailing Areas With Different Restoration History: Fungal Community Dynamics and Driving Factors

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