Host plants directly determine the α diversity of rhizosphere arbuscular mycorrhizal fungal communities in the National Tropical Fruit Tree Field Genebank
Abstract Arbuscular mycorrhizal fungi (AMF) typically exhibit reduced diversity in nutrient-rich soils. However, whether the influence of host plants on AMF within the rhizosphere is direct or indirect through the alteration of soil nutrient levels has yet to be determined. This study explored the d...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-01-01
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| Series: | Chemical and Biological Technologies in Agriculture |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40538-024-00540-w |
| _version_ | 1827328304711991296 |
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| author | Jugang Wang Xiaomin Gao Jiali Wang Jian Song Zhoujun Zhu Junru Zhao Min Liu Zuhua Wang |
| author_facet | Jugang Wang Xiaomin Gao Jiali Wang Jian Song Zhoujun Zhu Junru Zhao Min Liu Zuhua Wang |
| author_sort | Jugang Wang |
| collection | DOAJ |
| description | Abstract Arbuscular mycorrhizal fungi (AMF) typically exhibit reduced diversity in nutrient-rich soils. However, whether the influence of host plants on AMF within the rhizosphere is direct or indirect through the alteration of soil nutrient levels has yet to be determined. This study explored the diversity and colonization of AMF in the National Tropical Fruit Tree Genebank, where chemical fertilizers are used to preserve minor tropical fruit germplasms. We aimed to understand the direct and indirect effects of host plants on AMF community dynamics, sporulation, and colonization. By analyzing fine roots and rhizosphere soil from 12 tropical fruit trees, we assessed mycorrhizal colonization indices, soil nutrients, AMF spore density, and community structure. Despite their low colonization density and arbuscular abundance, all the tree roots harbored AMF, with spore densities ranging from 24.00 to 204.80 spores/100 g of dry soil. High-throughput sequencing identified 207 AMF virtual taxa (VTs) from 60 soil samples, with dominant taxa, including early-evolved Paraglomus fungi and ruderal AMF, being minimally affected by soil nutrient levels. Interestingly, there was no correlation between α diversity and spore density. Structural equation modeling (SEM) indicated that host plant evolutionary divergence time (ET) directly influenced AMF α diversity indices and indirectly impacted spore density via soil nutrients. However, neither ETs nor soil nutrients significantly affected the AMF community structure, with only arbuscular abundance showing a negative correlation with ET. This research underscores the intricate relationship between host plants and AMF in genebanks, offering insights for effective AMF resource management and informed conservation practices. Graphical Abstract |
| first_indexed | 2024-03-07T15:16:04Z |
| format | Article |
| id | doaj.art-5fe0efe1b01148d5be9a4eba91861de5 |
| institution | Directory Open Access Journal |
| issn | 2196-5641 |
| language | English |
| last_indexed | 2024-03-07T15:16:04Z |
| publishDate | 2024-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Chemical and Biological Technologies in Agriculture |
| spelling | doaj.art-5fe0efe1b01148d5be9a4eba91861de52024-03-05T17:54:51ZengSpringerOpenChemical and Biological Technologies in Agriculture2196-56412024-01-0111111610.1186/s40538-024-00540-wHost plants directly determine the α diversity of rhizosphere arbuscular mycorrhizal fungal communities in the National Tropical Fruit Tree Field GenebankJugang Wang0Xiaomin Gao1Jiali Wang2Jian Song3Zhoujun Zhu4Junru Zhao5Min Liu6Zuhua Wang7College of Agro-Forestry Engineering & Planning, Tongren UniversityCollege of Agro-Forestry Engineering & Planning, Tongren UniversityCollege of Agro-Forestry Engineering & Planning, Tongren UniversityCollege of Agro-Forestry Engineering & Planning, Tongren UniversityCollege of Agro-Forestry Engineering & Planning, Tongren UniversityCollege of Agro-Forestry Engineering & Planning, Tongren UniversityCollege of Agro-Forestry Engineering & Planning, Tongren UniversityCollege of Agro-Forestry Engineering & Planning, Tongren UniversityAbstract Arbuscular mycorrhizal fungi (AMF) typically exhibit reduced diversity in nutrient-rich soils. However, whether the influence of host plants on AMF within the rhizosphere is direct or indirect through the alteration of soil nutrient levels has yet to be determined. This study explored the diversity and colonization of AMF in the National Tropical Fruit Tree Genebank, where chemical fertilizers are used to preserve minor tropical fruit germplasms. We aimed to understand the direct and indirect effects of host plants on AMF community dynamics, sporulation, and colonization. By analyzing fine roots and rhizosphere soil from 12 tropical fruit trees, we assessed mycorrhizal colonization indices, soil nutrients, AMF spore density, and community structure. Despite their low colonization density and arbuscular abundance, all the tree roots harbored AMF, with spore densities ranging from 24.00 to 204.80 spores/100 g of dry soil. High-throughput sequencing identified 207 AMF virtual taxa (VTs) from 60 soil samples, with dominant taxa, including early-evolved Paraglomus fungi and ruderal AMF, being minimally affected by soil nutrient levels. Interestingly, there was no correlation between α diversity and spore density. Structural equation modeling (SEM) indicated that host plant evolutionary divergence time (ET) directly influenced AMF α diversity indices and indirectly impacted spore density via soil nutrients. However, neither ETs nor soil nutrients significantly affected the AMF community structure, with only arbuscular abundance showing a negative correlation with ET. This research underscores the intricate relationship between host plants and AMF in genebanks, offering insights for effective AMF resource management and informed conservation practices. Graphical Abstracthttps://doi.org/10.1186/s40538-024-00540-wMinor tropical fruitArbuscular mycorrhizaeRuderal strategyDiversityEvolutionary divergence time |
| spellingShingle | Jugang Wang Xiaomin Gao Jiali Wang Jian Song Zhoujun Zhu Junru Zhao Min Liu Zuhua Wang Host plants directly determine the α diversity of rhizosphere arbuscular mycorrhizal fungal communities in the National Tropical Fruit Tree Field Genebank Chemical and Biological Technologies in Agriculture Minor tropical fruit Arbuscular mycorrhizae Ruderal strategy Diversity Evolutionary divergence time |
| title | Host plants directly determine the α diversity of rhizosphere arbuscular mycorrhizal fungal communities in the National Tropical Fruit Tree Field Genebank |
| title_full | Host plants directly determine the α diversity of rhizosphere arbuscular mycorrhizal fungal communities in the National Tropical Fruit Tree Field Genebank |
| title_fullStr | Host plants directly determine the α diversity of rhizosphere arbuscular mycorrhizal fungal communities in the National Tropical Fruit Tree Field Genebank |
| title_full_unstemmed | Host plants directly determine the α diversity of rhizosphere arbuscular mycorrhizal fungal communities in the National Tropical Fruit Tree Field Genebank |
| title_short | Host plants directly determine the α diversity of rhizosphere arbuscular mycorrhizal fungal communities in the National Tropical Fruit Tree Field Genebank |
| title_sort | host plants directly determine the α diversity of rhizosphere arbuscular mycorrhizal fungal communities in the national tropical fruit tree field genebank |
| topic | Minor tropical fruit Arbuscular mycorrhizae Ruderal strategy Diversity Evolutionary divergence time |
| url | https://doi.org/10.1186/s40538-024-00540-w |
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