Guo Wen, Zhang Jian, Li Mai-He, Qi Lianghua
Key Laboratory of National Forestry and Grassland Administration/Beijing Bamboo and Rattan Science and Technology, International Centre for Bamboo and Rattan, Beijing, China.
Forest Dynamics, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland.
Front Microbiol. 2023 Feb 6;14:1120679. doi: 10.3389/fmicb.2023.1120679. eCollection 2023.
Soil fungi play an important role in nutrient cycling, mycorrhizal symbiosis, antagonism against pathogens, and organic matter decomposition. However, our knowledge about the community characteristics of soil fungi in relation to bamboo varieties is still limited. Here, we compared the fungal communities in different soil compartments (rhizosphere vs. bulk soil) of moso bamboo () and its four varieties using ITS high-throughput sequencing technology. The fungal α diversity (Shannon index) in bulk soil was significantly higher than that in rhizosphere soil, but it was not affected by bamboo variety or interactions between the soil compartment and bamboo variety. Soil compartment and bamboo variety together explained 31.74% of the variation in fungal community diversity. Soil compartment and bamboo variety were the key factors affecting the relative abundance of the major fungal taxa at the phylum and genus levels. Soil compartment mainly affected the relative abundance of the dominant fungal phylum, while bamboo variety primarily influenced the dominant fungal genus. Network analysis showed that the fungal network in rhizosphere soil was more complex, stable, and connected than that in bulk soil. A FUNGuild database analysis indicated that both soil compartment and bamboo variety affect fungal functions. Our findings provide new insights into the roles of both soil compartments and plant species (including variety) in shaping soil fungal communities.
土壤真菌在养分循环、菌根共生、拮抗病原体和有机物分解中发挥着重要作用。然而，我们对与竹品种相关的土壤真菌群落特征的了解仍然有限。在此，我们使用ITS高通量测序技术比较了毛竹及其四个品种在不同土壤组分（根际土壤与非根际土壤）中的真菌群落。非根际土壤中的真菌α多样性（香农指数）显著高于根际土壤，但不受竹品种或土壤组分与竹品种之间相互作用的影响。土壤组分和竹品种共同解释了真菌群落多样性变异的31.74%。土壤组分和竹品种是影响门和属水平上主要真菌类群相对丰度的关键因素。土壤组分主要影响优势真菌门的相对丰度，而竹品种主要影响优势真菌属。网络分析表明，根际土壤中的真菌网络比非根际土壤中的更复杂、更稳定且连接更紧密。FUNGuild数据库分析表明，土壤组分和竹品种均会影响真菌功能。我们的研究结果为土壤组分和植物物种（包括品种）在塑造土壤真菌群落中的作用提供了新的见解。
