The effects of arbuscular mycorrhizal (AM) fungal and garlic mustard introductions on native AM fungal diversity

By A. M. Koch, P. Antunes, E. Kathryn Barto, D. Cipollini, D. Mummey, J. Klironomos. Biological Invasions, 2011

87 citations recorded by the source corpus.

Introduced, non-native organisms are of global concern, because biological invasions can negatively affect local communities. Arbuscular mycorrhizal (AM) fungal communities have not been well studied in this context. AM fungi are abundant in most soils, forming symbiotic root-associations with many plant species. Commercial AM fungal inocula are increasingly spread worldwide, because of potentially beneficial effects on plant growth. In contrast, some invasive plant species, such as the non-mycorrhizal Alliaria petiolata, can negatively influence AM fungi. In a greenhouse study we examined changes in the structure of a local Canadian AM fungal community in response to inoculation by foreign AM fungi and the manipulated presence/absence of A. petiolata. We expected A. petiolata to have a stronger effect on the local AM fungal community than the addition of foreign AM fungal isolates. Molecular analyses indicated that inoculated foreign AM fungi successfully established and decreased molecular diversity of the local AM fungal community in host roots. A. petiolata did not affect molecular diversity, but reduced AM fungal growth in the greenhouse study and in a in vitro assay. Our findings suggest that both introduced plants and exotic AM fungi can have negative impacts on local AM fungi.

Subfields: Nature and Landscape Conservation, Pharmacology, Plant Science

View Paper: https://www.semanticscholar.org/paper/82beaf7238418c2168ec0f1d0f01ae3f3dd18451

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Nature and Landscape Conservation

1. K. Treseder
2. P. Antunes
3. K. Stinson
4. L. Canfora
5. E. Kathryn Barto
6. E. Malusá
7. D. Cipollini
8. J. Klironomos

In Pharmacology

1. A. M. Koch
2. P. Antunes
3. J. Klironomos
4. K. Treseder

In Plant Science

1. K. Treseder
2. P. Antunes
3. E. Kathryn Barto
4. D. Cipollini
5. A. M. Koch
6. K. Stinson
7. M. Maltz
8. L. Canfora

Citations in the corpus

• Efficacy of Biofertilizers: Challenges to Improve Crop Production (2016, background): “Once established successfully, introduced AMF showed to decrease the species richness of indigenous AM fungal communities in host roots (Koch et al. 2011 ).”
• Sources of inocula influence mycorrhizal colonization of plants in restoration projects: a meta‐analysis (2015, background): “A number of human activities can reduce the abundance of mycorrhizal fungi in degraded ecosystems (Allen & MacMahon 1985; McGonigle & Miller 1996; Boddington & Dodd 2000; Egerton-Warburton & Allen 2000; Lekberg & Koide 2005; Sheng et al. 2012; Kohl et al. 2014).”
• Differences in arbuscular mycorrhizal fungal communities associated with sugar maple seedlings in and outside of invaded garlic mustard forest patches (2011, background): “In fact, AMF resistant to the allelopathic effects of A. petiolata have been found in multiple environments (Burke 2008; Koch et al. 2011 ), and after initial decreases in AMF richness following invasion, richness appears to begin increasing again after only 50 years of exposure to A. petiolata (La”
• Enhancing ecosystem services in sustainable agriculture: Biofertilization and biofortification of chickpea (Cicer arietinum L.) by arbuscular mycorrhizal fungi (2014, unknown): “…8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 17 local soil microbial community (Mummey et al., 2009; Koch et al., 2011; Sýkorova et al., 400 2012; Veresoglou et al., 2012).”