Effects of microtopography on soil fungal community diversity, composition, and assembly in a subtropical monsoon evergreen broadleaf forest of Southwest China

Abstract Background Soil fungi play crucial roles in ecosystem functions. However, how snow cover change associated with winter warming affects soil fungal communities remains unclear in the Tibetan forest. Methods We conducted a snow manipulation experiment to explore immediate and legacy effects of snow exclusion on soil fungal community diversity and composition in a spruce forest on the eastern Tibetan Plateau. Soil fungal communities were performed by the high throughput sequencing of gene-fragments. Results Ascomycota and Basidiomycota were the two dominant fungal phyla and Archaeorhizomyces, Aspergillus and Amanita were the three most common genera across seasons and snow manipulations. Snow exclusion did not affect the diversity and structure of soil fungal community in both snow-covered and snow-free seasons. However, the relative abundance of some fungal communities was different among seasons. Soil fungal groups were correlated with environmental factors (i.e., temperature and moisture) and soil biochemical variables (i.e., ammonium and enzyme). Conclusions These results suggest that the season-driven variations had stronger impacts on soil fungal community than short-term snow cover change. Such findings may have important implications for soil microbial processes in Tibetan forests experiencing significant decreases in snowfall.

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Fire regime, not time-since-fire, affects soil fungal community diversity and composition in temperate grasslands

FEMS Microbiology Letters ◽

10.1093/femsle/fnw196 ◽

2016 ◽

Vol 363 (17) ◽

pp. fnw196 ◽

Cited By ~ 13

Author(s):

Eleonora Egidi ◽

Sapphire McMullan-Fisher ◽

John W. Morgan ◽

Tom May ◽

Ben Zeeman ◽

...

Keyword(s):

Fungal Community ◽

Fire Regime ◽

Community Diversity ◽

Temperate Grasslands ◽

Time Since Fire ◽

Soil Fungal Community

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Immediate and legacy effects of snow exclusion on soil fungal diversity and community composition

10.21203/rs.3.rs-55006/v3 ◽

2020 ◽

Author(s):

Zhenfeng Xu ◽

Li Zhang ◽

Yuzhi Ren ◽

Kaijun Yang ◽

Zhijie Li ◽

...

Keyword(s):

Snow Cover ◽

Fungal Community ◽

High Throughput Sequencing ◽

Community Diversity ◽

Fungal Communities ◽

Ecosystem Functions ◽

Legacy Effects ◽

Soil Microbial ◽

Soil Fungal Community ◽

Tibetan Forest

Abstract Background: Soil fungi play crucial roles in ecosystem functions. However, how snow cover change associated with winter warming affects soil fungal communities remains unclear in the Tibetan forest.Methods: We conducted a snow manipulation experiment to explore immediate and legacy effects of snow exclusion on soil fungal community diversity and composition in a spruce forest on the eastern Tibetan Plateau. Soil fungal communities were performed by the high throughput sequencing of gene-fragments.Results: Ascomycota and Basidiomycota were the two dominant fungal phyla and Archaeorhizomyces, Aspergillus and Amanita were the three most common genera across seasons and snow manipulations. Snow exclusion did not affect the diversity and structure of soil fungal community in both snow-covered and snow-free seasons. However, the relative abundance of some fungal communities was different among seasons. Soil fungal groups were correlated with environmental factors (i.e., temperature and moisture) and soil biochemical variables (i.e., ammonium and enzyme).Conclusions: These results suggest that the season-driven variations had stronger impacts on soil fungal community than short-term snow cover change. Such findings may have important implications for soil microbial processes in Tibetan forests experiencing significant decreases in snowfall.

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Immediate and legacy effects of snow exclusion on soil fungal diversity and community composition

10.21203/rs.3.rs-55006/v2 ◽

2020 ◽

Author(s):

Zhenfeng Xu ◽

Li Zhang ◽

Yuzhi Ren ◽

Kaijun Yang ◽

Zhijie Li ◽

...

Keyword(s):

Snow Cover ◽

Fungal Community ◽

High Throughput Sequencing ◽

Community Diversity ◽

Fungal Communities ◽

Ecosystem Functions ◽

Legacy Effects ◽

Soil Dna ◽

Soil Microbial ◽

Soil Fungal Community

Abstract Background: Soil fungi play crucial roles in ecosystem functions. However, how snow cover change associated with winter warming affects soil fungal communities remains unclear in the Tibetan forest.Methods: We conducted a snow manipulation experiment to explore immediate and legacy effects of snow exclusion on soil fungal community diversity and composition in a spruce forest on the eastern Tibetan Plateau. SoilThe fungal communities were performed by the high throughput sequencing of gene-fragments amplified from forest soil DNA.Results: We found that the Ascomycota and Basidiomycota were the two dominant fungal phyla and Archaeorhizomyces, Aspergillus and Amanita were the three most common genera across seasons and snow manipulations. Snow exclusion did not affect the diversity and structure of soil fungal community in both snow-covered and snow-free seasons. However, the relative abundance of some fungal communities was different among seasons. Soil fungal groups were correlated with environmental factors (i.e., temperature and moisture) and soil biochemical variables (i.e., ammonium and enzyme).Conclusions: These results suggest that the season-driven variations had stronger impacts on soil fungal community than short-term snow cover change. Such findings may have important implications for soil microbial processes in Tibetan forests experiencing significant decreases in snowfall.

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Immediate and Legacy Effects of Snow Exclusion on Soil Fungal Diversity and Community Composition

10.21203/rs.3.rs-55006/v1 ◽

2020 ◽

Author(s):

Li Zhang ◽

Yuzhi Ren ◽

Kaijun Yang ◽

Zhijie Li ◽

Bo Tan ◽

...

Keyword(s):

Snow Cover ◽

Fungal Community ◽

High Throughput Sequencing ◽

Community Diversity ◽

Fungal Communities ◽

Ecosystem Functions ◽

Legacy Effects ◽

Soil Dna ◽

Soil Microbial ◽

Soil Fungal Community

Abstract Background: Soil fungi play crucial roles in ecosystem functions. However, how snow cover change associated with winter warming affects soil fungal communities remains unclear in the Tibetan forest.Methods: We conducted a snow manipulation experiment to explore immediate and legacy effects of snow exclusion on soil fungal community diversity and composition in a spruce forest on the eastern Tibetan Plateau. The fungal communities were performed by the high throughput sequencing of gene-fragments amplified from forest soil DNA.Results: We found that the Ascomycota and Basidiomycota were the two dominant fungal phyla and Archaeorhizomyces, Aspergillus and Amanita were the three most common genera across seasons and snow manipulations. Snow exclusion did not affect the diversity and structure of soil fungal community in both snow-covered and snow-free seasons. However, the relative abundance of some fungal communities was different among seasons. Soil fungal groups were correlated with environmental factors (i.e., temperature and moisture) and soil biochemical variables (i.e., ammonium and enzyme).Conclusions: These results suggest that the season-driven variations had stronger impacts on soil fungal community than short-term snow cover change. Such findings may have important implications for soil microbial processes in Tibetan forests experiencing significant decreases in snowfall.

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Stochastic and deterministic drivers of seasonal variation of fungal community in tobacco field soil

PeerJ ◽

10.7717/peerj.6962 ◽

2019 ◽

Vol 7 ◽

pp. e6962

Author(s):

Xing Li ◽

Tianming Li ◽

Delong Meng ◽

Tianbo Liu ◽

Yongjun Liu ◽

...

Keyword(s):

Seasonal Variation ◽

Fungal Community ◽

Community Assembly ◽

High Throughput Sequencing ◽

Null Model ◽

Dispersal Limitation ◽

Community Diversity ◽

Ecological Processes ◽

Soil Fungal Community ◽

Community Variation

Background The soil fungal community plays an important role in global carbon cycling and shows obvious seasonal variations, however, drivers, particularly stochastic drivers, of the seasonal variation in the fungal community have never been addressed in sufficient detail. Methods We investigated the soil fungal community variation between summer growing (SG) and winter fallow (WF) stage, through high throughput sequencing of internal transcribed spacer (ITS) amplicons. Subsequently, we assessed the contribution of different ecological processes to community assembly using null-model-based statistical framework. Results The results showed that the fungal community diversity decreased significantly after tobacco cropping in the SG stage and the composition showed a clear turnover between the WF and SG stages. The variation in community composition was largely attributable to the presence of a small portion of Dothideomycetes in the WF stage that dominated the soil fungal community in the SG stage. The organic matter, temperature, and water content were the main deterministic factors that regulated the fungal community; these factors explained 34.02% of the fungal community variation. Together with the result that the fungal community was mainly assembled by the dispersal process, our results suggested that the stochastic factors played important roles in driving the seasonal variation of fungal community. The dispersal limitation dominated the fungal community assembly during the WF stage when homogenizing dispersal was the main assembly process of the fungal community in the SG stage. Thus, we proposed that the dispersal processes are important drivers for seasonal variation of fungal community in tobacco planted soil.

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Total nitrogen is the main soil property associated with soil fungal community in karst rocky desertification regions in southwest China

Scientific Reports ◽

10.1038/s41598-021-89448-1 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Daihua Qi ◽

Xuwen Wieneke ◽

Peipei Xue ◽

Li He ◽

Udaya DeSilva

Keyword(s):

Fungal Community ◽

Soil Fungi ◽

Southwest China ◽

Land Restoration ◽

Karst Rocky Desertification ◽

Illumina Hiseq ◽

Rocky Desertification ◽

Degraded Soil ◽

Soil Fungal Community ◽

The Impact

AbstractKarst rocky desertification (KRD) is a type of land deterioration, resulting in the degraded soil and a delicate ecosystem. Previous studies focused on the influence of KRD on the animals and plants, the impact of KRD on microorganisms, especially soil fungi remains to be discovered. This study reveals the change in the soil fungal community in response to KRD progression in southwest China. Illumina HiSeq was used to survey the soil fungal community. Results showed that the soil fungal community in the severe KRD (SKRD) was noticeably different from that in other KRD areas. Statistical analyses suggested that soil TN was the primary factor associated with the fungal community, followed by pH. Phylum Ascomycota was significantly abundant in non-degraded soils; whereas Basidiomycota predominated in SKRD. The ratio of Ascomycota/Basidiomycota significantly decreased along with KRD progression, which might be used as an indicator of KRD severity. Phylum Basidiomycota was sensitive to changes in all the soil properties but AP. Genus Sebacina might have the potential to promote vegetation and land restoration in KRD areas. This study fills a gap of knowledge on changes in soil fungal communities in accordance with KRD progression.

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