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Sod Culture with Vicia villosa Alters the Diversity of Fungal Communities in Walnut Orchards for Sustainability Development

Author

Listed:
  • Wan-Xia He

    (Tibet Plateau Walnut Industry Research Institute, College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China)

  • Qiao-Feng Sun

    (Wuhan Forest Resource Monitoring Center, Wuhan 430022, China)

  • Abeer Hashem

    (Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia)

  • Elsayed Fathi Abd_Allah

    (Plant Production Department, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia)

  • Qiang-Sheng Wu

    (Tibet Plateau Walnut Industry Research Institute, College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China)

  • Yong-Jie Xu

    (Hubei Academy of Forestry, Wuhan 430075, China)

Abstract

Monoculture frequently causes loss of soil nutrients and the emergence of soil-borne diseases in walnut orchards, whereas it is unknown whether sod culture with Vicia villosa (a popular agroforestry system) in walnut orchards impacts the structural composition and diversity of soil fungal communities. Fungal communities in walnut orchards with the cover plant V. villosa were investigated in this work utilizing high-throughput sequencing of ITS, as well as examination of root arbuscular mycorrhizal colonization and hyphal length of soil fungi. The monoculture and interplanted walnut models generated 33,511 and 34,620 effective tags with sequence similarity of 97%, respectively annotating 245 and 236 operational taxonomic units (OTUs). Among these, a total of 158 OTUs were found to be shared across monoculture and interplanted orchards. Walnuts grown in monoculture had a total of 245 species, belonging to 245 genera and 36 phyla, while walnuts with V. villosa as cover crops had 236 species, belonging to 236 genera and 19 phyla. The application of V. villosa as a cover plant significantly increased 1-Simpson and Shannon indices of soil fungi, indicating that interplanting V. villosa promoted soil fungal community diversity. Three dominant fungal phyla were detected in the soil, with Glosseromycota being the most dominant phylum. V. villosa as a cover plant significantly reduced the abundance of Funneliformis and Densospora in the soil, while it significantly increased the colonization of native arbuscular mycorrhizal fungi in roots by 94%, along with a 39% significant decrease in mycorrhizal hyphal length, as compared with the monoculture. Overall, V. villosa as a cover plant alters the composition and diversity of the soil fungal community, with reduced Funneliformis ( F . geosporum ) and Densospora abundance, and increased mycorrhizal colonization rate in roots, contributing to the sustainable and high-quality development of walnuts.

Suggested Citation

  • Wan-Xia He & Qiao-Feng Sun & Abeer Hashem & Elsayed Fathi Abd_Allah & Qiang-Sheng Wu & Yong-Jie Xu, 2023. "Sod Culture with Vicia villosa Alters the Diversity of Fungal Communities in Walnut Orchards for Sustainability Development," Sustainability, MDPI, vol. 15(13), pages 1-12, July.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:13:p:10731-:d:1189234
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    References listed on IDEAS

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    1. Wan-Xia He & Qiang-Sheng Wu & Abeer Hashem & Elsayed Fathi Abd_Allah & Pandiyan Muthuramalingam & Al-Bandari Fahad Al-Arjani & Ying-Ning Zou, 2022. "Effects of Symbiotic Fungi on Sugars and Soil Fertility and Structure-Mediated Changes in Plant Growth of Vicia villosa," Agriculture, MDPI, vol. 12(10), pages 1-12, September.
    2. Kehinde Abraham Odelade & Olubukola Oluranti Babalola, 2019. "Bacteria, Fungi and Archaea Domains in Rhizospheric Soil and Their Effects in Enhancing Agricultural Productivity," IJERPH, MDPI, vol. 16(20), pages 1-19, October.
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