Mycorrhizal types influence island biogeography of plants.
Journal
Communications biology
ISSN: 2399-3642
Titre abrégé: Commun Biol
Pays: England
ID NLM: 101719179
Informations de publication
Date de publication:
24 09 2021
24 09 2021
Historique:
received:
05
03
2021
accepted:
07
09
2021
entrez:
25
9
2021
pubmed:
26
9
2021
medline:
22
12
2021
Statut:
epublish
Résumé
Plant colonization of islands may be limited by the availability of symbionts, particularly arbuscular mycorrhizal (AM) fungi, which have limited dispersal ability compared to ectomycorrhizal and ericoid (EEM) as well as orchid mycorrhizal (ORC) fungi. We tested for such differential island colonization within contemporary angiosperm floras worldwide. We found evidence that AM plants experience a stronger mycorrhizal filter than other mycorrhizal or non-mycorrhizal (NM) plant species, with decreased proportions of native AM plant species on islands relative to mainlands. This effect intensified with island isolation, particularly for non-endemic plant species. The proportion of endemic AM plant species increased with island isolation, consistent with diversification filling niches left open by the mycorrhizal filter. We further found evidence of humans overcoming the initial mycorrhizal filter. Naturalized floras showed higher proportions of AM plant species than native floras, a pattern that increased with increasing isolation and land-use intensity. This work provides evidence that mycorrhizal fungal symbionts shape plant colonization of islands and subsequent diversification.
Identifiants
pubmed: 34561537
doi: 10.1038/s42003-021-02649-2
pii: 10.1038/s42003-021-02649-2
pmc: PMC8463580
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.
Langues
eng
Sous-ensembles de citation
IM
Pagination
1128Subventions
Organisme : Austrian Science Fund FWF
ID : I 3757
Pays : Austria
Informations de copyright
© 2021. The Author(s).
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