Decreasing relatedness among mycorrhizal fungi in a shared plant network increases fungal network size but not plant benefit.

Details

Serval ID
serval:BIB_1FEB175AF641
Type
Article: article from journal or magazin.
Publication sub-type
Letter (letter): Communication to the publisher.
Collection
Publications
Institution
Title
Decreasing relatedness among mycorrhizal fungi in a shared plant network increases fungal network size but not plant benefit.
Journal
Ecology letters
Author(s)
van 't Padje A., Klein M., Caldas V., Oyarte Galvez L., Broersma C., Hoebe N., Sanders I.R., Shimizu T., Kiers E.T.
ISSN
1461-0248 (Electronic)
ISSN-L
1461-023X
Publication state
Published
Issued date
02/2022
Peer-reviewed
Oui
Volume
25
Number
2
Pages
509-520
Language
english
Notes
Publication types: Letter
Publication Status: ppublish
Abstract
Theory suggests that relatives will cooperate more, and compete less, because of an increased benefit for shared genes. In symbiotic partnerships, hosts may benefit from interacting with highly related symbionts because there is less conflict among the symbionts. This has been difficult to test empirically. We used the arbuscular mycorrhizal symbiosis to study the effects of fungal relatedness on host and fungal benefits, creating fungal networks varying in relatedness between two hosts, both in soil and in-vitro. To determine how fungal relatedness affected overall transfer of nutrients, we fluorescently tagged phosphorus and quantified resource distribution between two root systems. We found that colonization by less-related fungi was associated with increased fungal growth, lower transport of nutrients across the network, and lower plant benefit - likely an outcome of increased fungal competition. More generally, we demonstrate how symbiont relatedness can mediate benefits of symbioses.
Keywords
Fungi, Mycorrhizae/genetics, Phosphorus, Plant Roots, Plants, Symbiosis, arbuscular mycorrhizal fungi, conflict, cooperation, genetic relatedness, quantum-dot
Pubmed
Web of science
Open Access
Yes
Create date
21/01/2022 18:12
Last modification date
09/02/2022 7:32
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