scholarly journals Soil bacterial and fungal community responses to nitrogen addition across soil depth and microhabitat in an arid shrubland

2015 ◽  
Vol 6 ◽  
Author(s):  
Rebecca C. Mueller ◽  
Jayne Belnap ◽  
Cheryl R. Kuske
Keyword(s):  
Fungal Community ◽  
Soil Depth ◽  
Nitrogen Addition ◽  
Community Responses ◽  
Soil Bacterial

scholarly journals Contrasting patterns and co-occurrence network of soil bacterial and fungal community along depth profiles in cold temperate montane forests of China

2021 ◽  
Author(s):  
Li Ji ◽  
Fangyuan Shen ◽  
Yue Liu ◽  
Yuchun Yang ◽  
Jun Wang ◽  
...  
Keyword(s):  
Fungal Community ◽  
Soil Depth ◽  
Illumina Miseq ◽  
Fungal Communities ◽  
Fungal Community Composition ◽  
Altitudinal Distribution ◽  
Core Composition ◽  
Key Species ◽  
Subsurface Soil ◽  
Soil Bacterial

AbstractSoil bacterial and fungal communities with different key ecological functions play an important role in the boreal forest ecosystem. Despite several studies have reported the microbial altitudinal distribution patterns, our understanding about the characteristics of the microbial community and the core composition of the microbiome in cold-temperate mountain forests is still limited. In this study, Illumina MiSeq sequencing was used to investigate the changes in soil bacterial and fungal communities in surface and subsurface soils along at an altitudinal gradient (from 830 m to 1300 m) on Oakley Mountain in the northern Greater Khingan Mountains. Altitude and soil depth had significant impacts on the relative abundance of Proteobacteria, Acidobacteria and Actinobacteria (dominant phylum for bacteria), and altitude had significant impacts on the Ascomycota, Basidiomycota and Mucoromycota (dominant phylum for fungi). The diversity of bacterial and fungal communities showed a monotonous decrease and increase with altitude. The influence of altitude on bacterial and fungal community composition was greater than that of soil depth. The variation of pH and dissolved organic nitrogen (DON) content in different altitudes were the main factors driving the bacterial and fungal community structure, respectively. There is no obvious difference between the network structure of surface and subsurface soil fungal communities, while the network of subsurface soil bacterial communities was more complex and compact than the surface layer. The network nodes mainly belonging to Proteobacteria and Actinobacteria are the key species in the two soil layers. Our results demonstrated that the altitude had a stronger influence on soil bacterial and fungal communities than soil depth, and bacterial and fungal communities showed divergent patterns along the altitudes and soil profiles.

scholarly journals Synergistic community responses of plants and arbuscular mycorrhizal fungi to extreme droughts in a cold-temperate grassland

2020 ◽  
Author(s):  
Wei Fu ◽  
Baodong Chen ◽  
Matthias Rillig ◽  
Wang Ma ◽  
Chong Xu ◽  
...  
Keyword(s):  
Fungal Community ◽  
Mycorrhizal Fungi ◽  
Community Dynamics ◽  
Environmental Changes ◽  
Environmental Filtering ◽  
Climate Extremes ◽  
Arbuscular Mycorrhizal ◽  
Am Fungi ◽  
Temperate Grassland ◽  
Community Responses

Mutualistic associations between plants and arbuscular mycorrhizal (AM) fungi may have profound influences on their response to climate changes. Existing theories evaluate the effects of interdependency and environmental filtering on plant-AM fungal community dynamics separately; however, abrupt environmental changes such as climate extremes can provoke duo-impacts on the metacommunity simultaneously. Here, we experimentally tested the relevance of plant and AM fungal community responses to extreme drought (chronic or intense) in a cold temperate grassland. Irrespective of drought intensities, plant species richness and productivity responses were significantly and positively correlated with AM fungal richness and also served as best predictors of AM fungal community shifts. Notably, the robustness of this community synergism increased with drought intensity, likely reflecting increased community interdependence. Network analysis showed a key role of Glomerales in AM fungal interaction with plants, suggesting specific plant-AM fungal pairing. Thus, community interdependence may underpin climate change impact on plant-AM fungal diversity patterns in grasslands.

scholarly journals Mechanisms of soil bacterial and fungal community assembly differ among and within islands

2020 ◽  
Vol 22 (4) ◽  
pp. 1559-1571 ◽  
Author(s):  
Pandeng Wang ◽  
Shao‐Peng Li ◽  
Xian Yang ◽  
Jizhong Zhou ◽  
Wensheng Shu ◽  
...  
Keyword(s):  
Fungal Community ◽  
Community Assembly ◽  
Soil Bacterial
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