NDLI: Evidence for functional redundancy in arbuscular mycorrhizal fungi and implications for agroecosystem management

Content Provider	Springer Nature Link
Author	Gosling, Paul Jones, Julie Bending, Gary D.
Copyright Year	2015
Abstract	Arbuscular mycorrhizal (AM) fungi provide benefits to host plants and show functional diversity, with evidence of functional trait conservation at the family level. Diverse communities of AM fungi ought therefore to provide increased benefits to the host, with implications for the management of sustainable agroecosystems. However, this is often not evident in the literature, with diversity saturation at low species number. Growth and nutrient uptake were measured in onions in the glasshouse on AM-free phosphorus (P)-poor soil, inoculated with between one and seven species of AM fungi in all possible combinations. Inoculation with AM fungi increased shoot dry weight as well as P and copper concentrations in shoots but reduced the concentration of potassium and sulphur. There was little evidence of increased benefit from high AM fungal diversity, and increasing diversity beyond three species did not result in significantly higher shoot weight or P or Cu concentrations. Species of Glomeraceae had the greatest impact on growth and nutrient uptake, while species of Acaulospora and Racocetra did not have a significant impact. Failure to show a benefit from high AM fungal diversity in this and other studies may be the result of experimental conditions, with the benefits of AM fungal diversity only becoming apparent when the host plant is faced with multiple stress factors. Replicating the complex interactions between AM fungi, the host plant and their environment in the laboratory in order to fully understand these interactions is a major challenge to AM research.
Starting Page	77
Ending Page	83
Page Count	7
File Format	PDF
ISSN	09406360
Journal	Mycorrhiza
Volume Number	26
Issue Number	1
e-ISSN	14321890
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-06-23
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Arbuscular mycorrhiza Fungal diversity Phosphorus Onion Microbiology Plant Sciences Ecology Agriculture Forestry
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science Medicine Molecular Biology Ecology, Evolution, Behavior and Systematics

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