A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Host filtering, not competitive exclusion, may be the main driver of arbuscular mycorrhizal fungal community assembly under high phosphorus (2023)
Frew, A., Heuck, M. K., & Aguilar‐Trigueros, C. A. (2023). Host filtering, not competitive exclusion, may be the main driver of arbuscular mycorrhizal fungal community assembly under high phosphorus. Functional Ecology, 37(7), 1856-1869. https://doi.org/10.1111/1365-2435.14349
JYU-tekijät tai -toimittajat
Julkaisun tiedot
Julkaisun kaikki tekijät tai toimittajat: Frew, Adam; Heuck, Meike Katharina; Aguilar‐Trigueros, Carlos A.
Lehti tai sarja: Functional Ecology
ISSN: 0269-8463
eISSN: 1365-2435
Julkaisuvuosi: 2023
Ilmestymispäivä: 02.05.2023
Volyymi: 37
Lehden numero: 7
Artikkelin sivunumerot: 1856-1869
Kustantaja: Wiley
Julkaisumaa: Britannia
Julkaisun kieli: englanti
DOI: https://doi.org/10.1111/1365-2435.14349
Julkaisun avoin saatavuus: Avoimesti saatavilla
Julkaisukanavan avoin saatavuus: Osittain avoin julkaisukanava
Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/87152
Tiivistelmä
We conducted a factorial pot experiment where sorghum (Sorghum bicolor) was grown under three different P treatments (low, medium and high), in the presence or absence of a natural AM fungal community. By analysing the diversity and community structure of the fungal community colonising roots, we aimed to determine if and how soil P influences the relatedness of these communities and whether competitive exclusion or environmental filtering play a more significant role in their assembly. Additionally, we evaluated the concomitant outcomes for plant growth, nutrient acquisition and defensive chemistry (phenolics).
Increasing P availability reduced AM fungal richness and increased community evenness. Root-colonising AM fungal communities under the high P treatment had significantly reduced phylogenetic diversity and comparatively lower mean pairwise distances among all treatments. This indicated that AM fungal communities became more closely related (phylogenetically clustered) with increasing soil P. The mycorrhizal growth and mycorrhizal P responses of plants were positive under low and medium P, but this was lost under high P, however, plant phenolics were increased.
Our results suggest that under high P conditions, environmental filtering plays an important role in AM fungal community assembly as host plants alter their selectivity of fungal functional groups prioritising those associated with enhancing plant stress resistance and defences, rather than nutrient acquisition. Here we demonstrated how soil P status can shape taxonomic and phylogenetic assembly of AM fungi and the associated functional outcomes for the host.
YSO-asiasanat: eliöyhteisöt; sienet; mykorritsasienet; fosfori; maaperä; fylogenetiikka
Vapaat asiasanat: arbuscular mycorrhizal fungi; community assembly; phylogenetic diversity; plant defence; plant phosphorus
Liittyvät organisaatiot
OKM-raportointi: Kyllä
Raportointivuosi: 2023
Alustava JUFO-taso: 3