Haiyan: The developmental characteristics of tree systems affect the distribution of soil fungi.

Natural forest soils are fertile soils and hot areas of fungal diversity and include a wide variety of functional groups.
these functional groups play an important role in the nutrient cycle, forest health and ecosystem stability of forests.
woody plants are the main body of the forest, continuously transferring photosynthesis to adjacent soils (hereinafter referred to as foundation soil) and maintaining close links with soil microorganisms.
recent studies have found strong systematic developmental signals in forest tree-fungal relationships, however, there are no reports of significant lying at large spatial scales of tree system development.
the 2015-2016 plant growth season of the Nanjing Soil Research Institute of the Chinese Academy of Sciences, the Yan Haiyan group collected the tree roots of Changbai mountain, Donglingshan, Shennong rack, Tianmumountain and Gutianshan (a total of 343, including 58 woody plant species), using high-throughput sequencing and systematic development vector method, to analyze the system developmental relationship of the species, non-biological environmental selection and spatial barrier of the relative forest.
the difference seditums of soil fungal communities and the positive correlation between the systematic development al-development distance between woody plants.
include general fungi, rotting fungi, plant pathogenic fungi, and exogenous root fungi.
results show that, with the increase of the development distance of the plant system, the community differences between the overall fungi and major functional groups (including rotting fungi, exogenous root fungi and plant pathogenic fungi) in the corresponding base soil increasesignificantly; factors) and spatial distance explained the changes of 11.4%, 24.1% and 7.2% of soil fungal communities, respectively, and the living nutrient-based exogenous root fungus and plant pathogenic fungal communities were significantly more affected by the development of woody plant systems than the soil rotbacteria communities that lived freely.
the first quantitative study at a largespatial scale (?gt;2000 km) revealed the significant effects of plant system developmental characteristics on the biological spatial distribution of soil fungi, and noted the existence of functional group dependence.
the above findings provide a new perspective for understanding the evolutionary laws between forest soil fungi and woody plants, and also contribute to the understanding of the coexistence and diversity of species in the fragmented distribution of mountain forest ecosystems in China.
published the findings in The ISME Journal.
Source: Nanjing Soil Research Institute.