Fungal community and functional responses to soil warming are greater than for soil nitrogen enrichment

Anthony, Mark; Knorr, Melissa A.; Moore, Jessica A. M.; Simpson, Myrna J.; Frey, Serita D.

doi:10.1525/elementa.2021.000059

Cited by 9 publications

(7 citation statements)

References 77 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Frey et al reported that long-term warming altered substrate utilization patterns in an adjacent soil warming experiment at Harvard Forest (Figure S1 and Table S6). Anthony et al reported that fungal community evenness declined, and the community composition was altered with 10 years of soil warming which could also impact substrate utilization patterns. We observed that the ratio of Gram-negative to Gram-positive bacteria shifted, suggesting that bacteria may be responding to changes in substrate availability .…”

Section: Discussionmentioning

confidence: 99%

Chronic Warming and Nitrogen-Addition Alter Soil Organic Matter Molecular Composition Distinctly in Tandem Compared to Individual Stressors

Stoica

Anaraki

Muratore

et al. 2023

ACS Earth Space Chem.

View full text Add to dashboard Cite

Forest soils are major reservoirs of carbon (C), but these stores are threatened by increasing global temperatures and atmospheric nitrogen (N) deposition. These environmental stressors can alter soil microbial communities and soil organic matter (SOM) biogeochemistry through a variety of mechanisms. To investigate the impact of chronic warming, N-addition, and simultaneous warming and N-addition (warming + N) on forest soils, soil samples from the Harvard Forest Soil Warming and Nitrogen Addition (SWaN) experiment were analyzed after 14 years. Elemental analysis, targeted compound analysis by gas chromatography–mass spectrometry, and 13C nuclear magnetic resonance (NMR) spectroscopy were used to analyze changes in SOM in both the organic and mineral (0–10 cm) soil layers. Overall, changes in the molecular composition and microbial biomass were observed, but the extent of differences was unique to warming, N-addition, and warming + N treatments. Specifically, N-addition slowed SOM decomposition as measured via solid-state 13C NMR, while warming and warming + N accelerated SOM decomposition. Continued SOM decomposition after 14 years with warming + N signified a pronounced change to observations made after 4 and 10 years of experimental treatment. This is also demonstrative of how a two-factor approach leads to a unique molecular-level response that cannot be predicted from experiments with individual stressors alone. This study emphasizes the need to observe environmental stressors in tandem using a combination of molecular-level approaches to obtain a comprehensive understanding of how persistent anthropogenic activity will fundamentally alter forest soil systems.

show abstract

Section: Discussionmentioning

confidence: 99%

Chronic Warming and Nitrogen-Addition Alter Soil Organic Matter Molecular Composition Distinctly in Tandem Compared to Individual Stressors

Stoica

Anaraki

Muratore

et al. 2023

ACS Earth Space Chem.

View full text Add to dashboard Cite

show abstract

“…Assuming that the effects of warming on the size of the soil microbial community recorded here are cumulative in nature, then we anticipate increased fungal DNA concentrations in warmed soils at subsequent samplings of the experiment at Kongsfjordneset. Furthermore, we anticipate that the warming treatment might also alter fungal community diversity and composition, as found in temperate soils with dense woody plant cover, in which 10 years of heating reduces soil fungal diversity and alters community composition [ 78 ]. These effects are driven largely by changes to the abundances of ectomycorrhizal Cortinarius and Russula species [ 14 , 78 ], the former of which are present in the roots of Salix polaris on the Brøgger Peninsula [ 79 ].…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, we anticipate that the warming treatment might also alter fungal community diversity and composition, as found in temperate soils with dense woody plant cover, in which 10 years of heating reduces soil fungal diversity and alters community composition [ 78 ]. These effects are driven largely by changes to the abundances of ectomycorrhizal Cortinarius and Russula species [ 14 , 78 ], the former of which are present in the roots of Salix polaris on the Brøgger Peninsula [ 79 ].…”

Section: Discussionmentioning

confidence: 99%

Rapid Response to Experimental Warming of a Microbial Community Inhabiting High Arctic Patterned Ground Soil

Newsham

Danielsen

Biersma

et al. 2022

Biology

View full text Add to dashboard Cite

The influence of climate change on microbial communities inhabiting the sparsely vegetated patterned ground soils that are widespread across the High Arctic is poorly understood. Here, in a four-year experiment on Svalbard, we warmed patterned ground soil with open top chambers and biannually irrigated the soil to predict the responses of its microbial community to rising temperatures and precipitation. A 1 °C rise in summertime soil temperature caused 44% and 78% increases in CO2 efflux and CH4 consumption, respectively, and a 32% increase in the frequency of bacterial 16S ribosomal RNA genes. Bacterial alpha diversity was unaffected by the treatments, but, of the 40 most frequent bacterial taxa, warming caused 44–45% reductions in the relative abundances of a Sphingomonas sp. and Ferruginibacter sp. and 33–91% increases in those of a Phenylobacterium sp. and a member of the Acetobacteraceae. Warming did not influence the frequency of fungal internal transcribed spacer 2 copies, and irrigation had no effects on the measured variables. Our study suggests rapid changes to the activities and abundances of microbes, and particularly bacteria, in High Arctic patterned ground soils as they warm. At current rates of soil warming on Svalbard (0.8 °C per decade), we anticipate that similar effects to those reported here will manifest themselves in the natural environment by approximately the mid 2030s.

show abstract

“…Liu et al (2017) reported that warming signi cantly decreased the abundance of soil fungi in wheat rhizosphere. Recently, it was shown that the diversity of the soil fungal community was lower under warming conditions (Anthony et al, 2021). Deslippe et al (2012) showed that long-term warming resulted in a signi cant increase in the relative abundance of fungi in Arctic tundra soil.…”

Section: Introductionmentioning

confidence: 99%

Impacts of 10 years of elevated CO2 and warming on soil fungal diversity and network complexity in a Chinese paddy field

Gao

Zhang

et al. 2023

Preprint

View full text Add to dashboard Cite

Fungal communities play essential roles in ecosystems and are involved in soil formation, waste decomposition, nutrient cycling, and plant nutrient supply. Although studies have focused on soil bacterial community responses to climate change in agricultural ecosystems, only few have investigated the dynamic changes in the diversity and complexity of fungal communities in paddy fields. Herein, using internal transcribed spacer (ITS) gene amplicon sequencing and co-occurrence network methods, the responses of soil fungal community to factorial combinations of elevated CO2 (550 ppm) and canopy warming (+2°C) were explored in an open-air field experiment in Changshu, China, for 10 years. Elevated CO2 significantly increased the operational taxonomic unit (OTU) richness and Shannon diversity of fungal communities in both rice rhizosphere and bulk soils, whereas the relative abundances of Ascomycota and Basidiomycota were significantly decreased and increased, respectively, by elevated CO2. Co-occurrence network analysis showed that elevated CO2, warming, and their combination increased the network complexity and negative correlation of the fungal community in rhizosphere and bulk soils, suggesting that these factors enhanced the competition of microbial species. Warming resulted in a more complex network structure by altering topological roles and increasing the numbers of key fungal nodes. Principal coordinate analysis indicated that rice growth stages rather than elevated CO2 and warming altered soil fungal communities. Specifically, the changes in diversity and network complexity were greater at the heading and ripening stages than at the tillering stage. Furthermore, elevated CO2 and warming significantly increased the relative abundances of pathotrophic fungi and reduced those of symbiotrophic fungi in both rhizosphere and bulk soils. Overall, the results indicate that long-term CO2 exposure and warming enhance the complexity and stability of soil fungal community, potentially threatening crop health and soil functions through adverse effects on fungal community functions.

show abstract

Fungal community and functional responses to soil warming are greater than for soil nitrogen enrichment

Cited by 9 publications

References 77 publications

Chronic Warming and Nitrogen-Addition Alter Soil Organic Matter Molecular Composition Distinctly in Tandem Compared to Individual Stressors

Chronic Warming and Nitrogen-Addition Alter Soil Organic Matter Molecular Composition Distinctly in Tandem Compared to Individual Stressors

Rapid Response to Experimental Warming of a Microbial Community Inhabiting High Arctic Patterned Ground Soil

Impacts of 10 years of elevated CO2 and warming on soil fungal diversity and network complexity in a Chinese paddy field

Contact Info

Product

Resources

About