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Isolation of Culturable Yeasts and Molds from Soils to Investigate Fungal Population Structure
Published on: May 27, 2022
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Soil fungal assemblage complexity is dependent on soil fertility and dominated by deterministic processes
Junjie Guo1, Ning Ling1,2, Zhaojie Chen1
1Jiangsu Provincial Key Laboratory for Solid Organic Waste Utilization, Nanjing Agricultural University, Nanjing, 210095, China.
The New Phytologist
|November 29, 2019
Summary
Soil fungal communities in tea plantations exhibit deterministic assembly processes. Higher soil fertility correlates with increased fungal community complexity and network connectivity, offering insights into ecosystem fertility drivers.
Area of Science:
- Ecology
- Soil Science
- Mycology
Background:
- Fungi play a crucial role in ecosystem fertility.
- Understanding fungal community assembly in relation to soil fertility is limited.
- Soil fertility significantly influences microbial community dynamics.
Purpose of the Study:
- To investigate fungal community assemblage complexity and assembly processes along a soil fertility gradient in Chinese tea plantations.
- To determine the impact of varying soil fertility levels on fungal community structure and function.
- To explore the interplay between environmental factors, spatial factors, and fungal community composition.
Main Methods:
- Collected soil samples from tea plantations across China, spanning a wide geographical range.
- Analyzed 140 fungal communities along a soil fertility gradient.
- Assessed community dissimilarities, fungal functional guilds (symbiotrophs, pathotrophs, saprotrophs), fungal network properties, and fitted species abundance to the Zipf-Mandelbrot distribution.
Main Results:
- Community dissimilarities for total fungi and guilds increased with soil fertility index dissimilarity.
- Symbiotrophs were more sensitive to soil fertility variations than pathotrophs and saprotrophs.
- More fertile soils exhibited larger fungal networks with higher connectivity and inter-module connection potential.
- Deterministic processes, evidenced by the Zipf-Mandelbrot distribution, governed fungal community assembly.
- Environmental factors had a greater influence on fungal community composition than spatial factors.
Conclusions:
- Soil fungal communities in tea plantations respond deterministically to soil fertility.
- High soil fertility is associated with complex fungal community assemblages and robust fungal networks.
- These findings enhance our understanding of fungal roles in ecosystem fertility and aid in predicting fungal community complexity.
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