Effects of an introduced mustard, Thlaspi arvense, on soil fungal communities in subalpine meadows

Trautwig, Adam N.; Anthony, Mark; Frey, Serita D.; Stinson, Kristina A.

doi:10.1016/j.funeco.2021.101135

Cited by 1 publication

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“…While N. fendleri is a native mustard present at the elevation of the source F. thurberi, T. arvense is a non-native mustard that has become cosmopolitan at lower elevations. We chose to include N. fendleri in this study in order to compare the effects of a locally native Brassicaceae species to that of the encroaching non-native, the latter of which contains phytochemicals known to relax constraints on arbuscular mycorrhizal fungal phylogenetic diversity (Trautwig et al, 2021).…”

Section: Examining the Effects Of Intraspecific Variation And Simulat...mentioning

confidence: 99%

“…Further research could explore whether both members of the Brassicaceae filter microorganisms (including carbon hungry AMF whose abundance inversely correlates with plant biomass; Lynn et al, 2019) out of a community. In addition, novel microbes associated with T. arvense at lower elevations may disrupt previously existing dynamics in high elevation meadows (Trautwig et al, 2021). A co-culturing experiment that examines prolonged plant-plant and plant-microbe interactions may add additional context to our experiment.…”

Section: Examining the Effects Of Intraspecific Variation And Simulat...mentioning

confidence: 99%

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Intraspecific Variation in Responses of a Montane Grass, Festuca thurberi, to Simulated Biological Invasion

Trautwig

Cousins

Stinson

2022

Front. For. Glob. Change

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High elevation plant populations, such as those found in sub-alpine meadows, are at the forefront of climate change and likely to experience novel interactions with migrating plants from lower elevations, including non-native species. Some of these non-native plants, particularly members of the Brassicaceae, produce secondary metabolites that have been shown to inhibit root fungi in other ecosystems. We conducted a growth experiment with plant leachates in order to evaluate the degree to which the dominant high elevation grass species, Festuca thurberi would be affected by future novel interactions with the non-native mustard, Thlaspi arvense, relative to a native mustard (Noccaea fendleri). We assessed growth, chlorophyll content, biomass, mortality, and percent colonization of arbuscular mycorrhizal fungi (AMF) and dark septate endophytes (DSE) in different genotypes of F. thurberi exposed to leachates from native and non-native mustards as well as F. thurberi leachate and a deionized (DI) water control. New growth and mortality varied more by genotype than by treatment with leachate of F. thurberi, T. arvense, and N. fendleri. Treatment, genotype, and the treatment × genotype interaction all had significant effects on chlorophyll content, with N. fendleri treatments demonstrating higher relative greenness levels than control treatments. Percent of fine roots with dark septate endophytes was significantly affected by individual genotype and treatment × genotype interaction, but there were no effects of treatment, genotype, or their interaction on percent root colonization by arbuscules or vesicles. Overall, we show that performance of a dominant high-altitude grass species varies in its response to the presence of an expanding, non-native plant, which may become increasingly common due to climate change.

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Section: Examining the Effects Of Intraspecific Variation And Simulat...mentioning

confidence: 99%

Section: Examining the Effects Of Intraspecific Variation And Simulat...mentioning

confidence: 99%

Intraspecific Variation in Responses of a Montane Grass, Festuca thurberi, to Simulated Biological Invasion

Trautwig

Cousins

Stinson

2022

Front. For. Glob. Change

Self Cite

View full text Add to dashboard Cite

show abstract

Effects of an introduced mustard, Thlaspi arvense, on soil fungal communities in subalpine meadows

Cited by 1 publication

References 47 publications

Intraspecific Variation in Responses of a Montane Grass, Festuca thurberi, to Simulated Biological Invasion

Intraspecific Variation in Responses of a Montane Grass, Festuca thurberi, to Simulated Biological Invasion

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