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Different Responses of Arbuscular Mycorrhizal Fungal Community Compositions in the Soil and Roots to Nitrogen Deposition in a Subtropical ICunninghamia lanceolata/I Plantation in China

Forests, 2023-12, Vol.15 (1) [Peer Reviewed Journal]

COPYRIGHT 2023 MDPI AG ;ISSN: 1999-4907 ;EISSN: 1999-4907 ;DOI: 10.3390/f15010027

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  • Title:
    Different Responses of Arbuscular Mycorrhizal Fungal Community Compositions in the Soil and Roots to Nitrogen Deposition in a Subtropical ICunninghamia lanceolata/I Plantation in China
  • Author: Han, Yu ; Liu, Zhiyuan ; Li, Siyao ; Lai, Faying ; Chi, Chunghao ; Yang, Yusheng ; Cao, Jiling
  • Subjects: Fungi ; Plantations
  • Is Part Of: Forests, 2023-12, Vol.15 (1)
  • Description: Elevated nitrogen (N) deposition may stimulate a plant’s dependency on arbuscular mycorrhizal (AM) fungi in phosphorus (P)-deficient subtropical forests. However, the ecological assembly processes and the responses of AM fungal diversity and community structure to N deposition in both the roots and rhizosphere are still unclear. We collected root and soil samples from a Cunninghamia lanceolata plantation forest after four years of N addition and examined the community structure and assembly of AM fungi. Elevated N deposition decreased the AM fungal community diversity in both rhizosphere soil and roots. Glomeraceae was the dominant family of the AM fungal community in both soil and roots across all N addition treatments, followed by Gigasporaceae and Ambisporaceae. However, N addition induced differential variation in the community composition of AM fungi between soil and roots. For soil AM fungi, N addition decreased the Glomeraceae abundance and increased the Gigasporaceae and Ambisporaceae abundance. In contrast, the root AM fungal community was dominated by Glomeraceae under N addition treatments. Furthermore, N addition increased the deterministic community assembly that acted as an environmental filter for soil AM fungi. In contrast, N addition decreased the importance of determinism, implying that the selection of plants on root AM fungi decreased with increasing N addition. Altogether, our findings suggest that the community structure of AM fungi responds differently to N deposition in the soil and roots in subtropical forests and highlight the important role of soil AM fungi in helping host plants respond to N deposition.
  • Publisher: MDPI AG
  • Language: English
  • Identifier: ISSN: 1999-4907
    EISSN: 1999-4907
    DOI: 10.3390/f15010027
  • Source: ROAD: Directory of Open Access Scholarly Resources
    ProQuest Central
    DOAJ Directory of Open Access Journals
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