Bacterial rather than fungal diversity and community assembly drive soil multifunctionality in a subtropical forest ecosystem

Han, Shun; Tan, Shuang; Wang, Achen; Chen, Wenli; Huang, Qiaoyun

doi:10.1111/1758-2229.13033

Cited by 33 publications

(6 citation statements)

References 55 publications

(83 reference statements)

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“…As it relates to β-glucosidase activity, higher diversity communities might have more diverse metabolisms that can utilize other substrates besides glucosyl, the substrate of BG, and therefore might have lower overall BG activity. Negative selection effects and metabolic overlap can both account for the negative relationship between bacterial diversity and β-glucosidase activity, which has also been observed in other studies (Chen et al 2023; Han et al 2022).…”

Section: Discussionsupporting

confidence: 81%

Seasonal effects of long-term warming on ecosystem function and bacterial diversity

Shinfuku,

Domeignoz-Horta,

Choudoir

et al. 2023

Preprint

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Across biomes, soil biodiversity promotes ecosystem functions. However, whether this relationship will be maintained under climate change is uncertain. Here, using two long-term warming experiments, we investigated how warming affects the relationship between ecosystem functions and microbial diversity across seasons, soil horizons, and warming duration. The soils in these warming experiments were heated +5 °C above ambient for 13 or 28 years. We measured seven different ecosystem functions representative of soil carbon cycling, soil nitrogen cycling, or nutrient pools. We also surveyed bacterial and fungal community diversity. We found that the relationship between ecosystem function and bacterial diversity and the relationship between ecosystem function and fungal diversity was unaffected by warming or warming duration. Ecosystem function, however, was significantly affected by season, with autumn samples having higher function than summer samples. Our findings further emphasize that season is a consistent driver of ecosystem function and that this is maintained even under simulated climate change.

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Section: Discussionsupporting

confidence: 81%

Seasonal effects of long-term warming on ecosystem function and bacterial diversity

Shinfuku,

Domeignoz-Horta,

Choudoir

et al. 2023

Preprint

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“…The occurrence of dispersal limitation in the karst tiankeng indicates a weakening selection, which may result from the barrier of the vertical cliff. Most previous studies suggested that deterministic processes have a greater impact on the formation of bacterial communities ( Cheng et al, 2021 ; Han et al, 2022 ; Wang H. et al, 2022 ). Our results may be explained by the complex environment in the karst tiankeng.…”

Section: Discussionmentioning

confidence: 99%

The characterization of microbial communities and associations in karst tiankeng

Jiang

Liu

et al. 2022

Front. Microbiol.

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The karst tiankeng is a special and grand negative terrain on the surface, that maintains a unique ecosystem. However, knowledge about bacterial and fungal communities in karst tiankengs is still limited. Therefore, soil samples from five karst tiankengs were collected and subjected to high-throughput sequencing of 16S rRNA and ITS genes, and multivariate statistical analysis. The results showed abundant and diversified bacterial and fungal communities in karst tiankeng. The bacterial communities were dominated by Proteobacteria and Acidobacteria, and the fungal communities were dominated by Ascomycota and Basidiomycota. Statistical analysis revealed significant differences in bacterial and fungal communities among the five karst tiankengs, which may indicate that the distribution of bacterial and fungal communities was driven by separate karst tiankengs. The co-occurrence network structure was characterized by highly modularized assembly patterns and more positive interactions. The keystone taxa were mainly involved in nutrient cycling and energy metabolism. The null model analysis results showed that the stochastic process, especially dispersal limitation, tended to be more important in controlling the development of bacterial and fungal communities in karst tiankeng. The bacterial community structure was significantly associated with soil properties (SWC, TN, AN, and BD), while the fungal community structure was significantly associated with soil properties (SWC and TP) and plant diversity. These results can expand our knowledge of the karst tiankeng microbiome.

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“…However, recent studies have shown that the soil biodiversity and microbial community composition are crucial determinants of soil ecosystem multifunctionality, including carbon sequestration, greenhouse gas emission, and nutrient leaching [19,20]. Notably, soil fungal diversity, but not bacterial diversity, has been positively correlated with soil multifunctionality in boreal forest ecosystems [21], while the opposite was found in subtropical forest ecosystems [22]. Interestingly, in a degraded alpine meadow, bacterial diversity was negatively correlated with potential soil multifunctionality [23].…”

Section: Introductionmentioning

confidence: 99%

Microbial Metabolic Limitation and Soil Multifunctionality Changes across Subtropical Woodlands in Southern China

Qiao,

Liu,

Deng

et al. 2024

Forests

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Soil nutrient transformation and the microbial metabolism are primarily regulated by soil microorganisms, including fungi and bacteria, which exhibit distinct growth patterns, energy substrate utilization, and survival strategies. Despite their significance, our understanding of the key microorganisms governing the soil microbial metabolism and multifunctionality in subtropical woodlands remains limited. To address this knowledge gap, we conducted a large-scale investigation and assessment of the soil microbial metabolic limitation and soil multifunctionality in Camellia oleifera Abel and Pinus massoniana Lamb. woodlands in subtropical China. Our results reveal that the microbial phosphorus limitation was more severe in C. oleifera compared to P. massoniana woodlands. Nonetheless, the pattern of carbon metabolic limitation for microbes and soil multifunctionality was similar in both types of woodland. Specifically, the microbial carbon limitation was positively associated with both bacterial and fungal richness, while the microbial phosphorus limitation was significantly correlated with fungi including the richness and community structure in the P. massoniana woodland. By contrast, we did not observe significant correlations between microbial metabolic limitation indices and microbial parameters in C. oleifera woodlands. Regarding soil multifunctionality, the results reveal a strong positive correlation between the soil multifunctionality and fungal community in both P. massoniana and C. oleifera woodlands. Furthermore, our structural equation modeling revealed that the soil fungal community, rather than the bacterial community, had a significant effect on the microbial metabolic limitation and soil multifunctionality. Overall, our study provides profound insights into the relative importance of bacterial and fungal communities in shaping the soil microbial metabolic limitation and soil multifunctionality in subtropical woodlands. The findings of our study have important implications for the management and conservation of subtropical woodlands.

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Bacterial rather than fungal diversity and community assembly drive soil multifunctionality in a subtropical forest ecosystem

Cited by 33 publications

References 55 publications

Seasonal effects of long-term warming on ecosystem function and bacterial diversity

Seasonal effects of long-term warming on ecosystem function and bacterial diversity

The characterization of microbial communities and associations in karst tiankeng

Microbial Metabolic Limitation and Soil Multifunctionality Changes across Subtropical Woodlands in Southern China

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