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Tropical rainforests are the most biodiverse regions on Earth, in which plant root endophytic fungi play an important role in the ecosystem structure, function, and stability. Different mycorrhizal types of forest trees can affect the physical and chemical properties of rhizosphere soil by regulating root traits, thereby changing the structural characteristics of endophytic fungal communities in roots. However, there is no systematic dataset that demonstrates the mechanisms by which different mycorrhizal types of tropical trees regulate the endophytic fungal communities in their roots. To reveal the intrinsic relationship between mycorrhizal types in tropical forests and endophytic fungal communities in roots, as well as the ecological driving mechanisms underlying this relationship, this study established a database by systematically integrating data on endophytic fungal communities in roots of trees at different successional stages in tropical forests, based on the two most common mycorrhizal types, arbuscular mycorrhiza (AM) and ectomycorrhiza (ECM). This database provides fundamental data support for analyzing the ecological functions of different mycorrhizal types in tropical forests, belowground symbiotic interaction networks, and the maintenance mechanisms of ecosystem functions. Drawing on published literature and the dataset of Hogan et al. on root endophytic fungi in tropical trees, we systematically integrated and standardized data to establish a fungal community database associated with different mycorrhizal types of tropical trees. All functional trait data of roots were processed through the arithmetic mean method, while soil environmental data were weighted by the relative abundance of tree species. Other data were aggregated by tree species identity and finally classified according to mycorrhizal type. The entire data processing workflow was subjected to rigorous quality control, including verification of mycorrhizal types, standardization of data formats, and handling of outliers. This database contains a total of 5 969 standardized records, encompassing the Latin names of 66 woody plant species, mycorrhizal types (AM and ECM), 24 indicators related to root morphological traits (such as root length, root tissue density, and root volume), 13 indicators related to root tissue nutrients (such as root carbon content, nitrogen content, and phosphorus content), 7 indicators related to soil physical and chemical properties (such as soil organic matter, total nitrogen, and total phosphorus), and operational taxonomic units (OTUs) of endophytic fungi in roots, along with corresponding classification information. The establishment of this database provides a reliable data foundation for analyzing the belowground ecological interaction mechanisms of tropical forests, comparing the functions of mycorrhizal symbiosis, and informing the development of regional forest conservation and restoration strategies.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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