Resource availability differentially drives community assemblages of plants and their root-associated arbuscular mycorrhizal fungi

Liu, Yongjun; Lin, Mao; Li, Junyong; Shi, Guoxi; Jiang, Shengjing; Ma, Xiaojun; An, Lizhe; Du, Guozhen; Feng, Huyuan

doi:10.1007/s11104-014-2261-z

Cited by 61 publications

(56 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For example, in a temperate forest, Garcia et al (2008) found significant increases in the richness of AMF fungi in N-amended plots, but no response to CO 2 , and no interactive effects. Similarly, despite finding significant effects of shading of the plant community on AMF richness, Liu et al (2014) found no interactive effects of a shading and fertilization (N and P) experiment. Both shading, which should decrease photosynthesis and plant C availability, and increased nutrients have been shown to shift the AM symbiosis toward fungal parasitism (Johnson et al 1997), but increased CO 2 and high N should have opposing effects on the function of the symbiosis (Johnson 2009).…”

Section: Limited Interactive Effects Of Experimental Global Changementioning

confidence: 70%

“…An increasing number of studies of AMF have used patterns of AMF relatedness to examine the global distribution of AMF communities (Kivlin et al 2011), contrast patterns of community assembly in the roots of plant hosts and the rhizosphere (Saks et al 2013), and examine AMF response to global change (Liu et al 2014). As shown for other microbial communities [e.g.…”

Section: Amf Phylogenetic Community Assemblymentioning

confidence: 99%

“…The effects of global changes on the phylogenetic composition of AMF colonizing mixed-plant communities in an alpine meadow found that phylogenetic clustering shifted from overdispersed to random with combined N and P fertilization (Liu et al 2014). In the current study, we found that in general, the AMF community was clustered, with patterns closer to random in N-amended and ambient plots, and higher clustering in CO 2 and interactive treatments (Fig.…”

Section: Amf Phylogenetic Community Assemblymentioning

confidence: 99%

See 2 more Smart Citations

Shifts in the phylogenetic structure of arbuscular mycorrhizal fungi in response to experimental nitrogen and carbon dioxide additions

Mueller

Bohannan

2015

Oecologia

View full text Add to dashboard Cite

Global N inputs and atmospheric CO2 concentrations have increased as a result of human activities, and are predicted to increase along with population growth, with potentially negative effects on biodiversity. Using taxonomic and phylogenetic measures, we examined the response of arbuscular mycorrhizal fungi (AMF) to experimental manipulations of N and CO2 at the Jasper Ridge Global Change Experiment. No significant interactions between N and CO2 were observed, but individual effects of N and CO2 were found. Elevated CO2 resulted in changes in phylogenetic similarity, and a shift to phylogenetic clustering of AMF communities. N addition resulted in higher phylogenetic diversity and evenness, with no shifts in community composition and no significant signal for phylogenetic clustering. N addition resulted in an increase in both available N and the N:P ratio in N-amended plots, which suggests that changing patterns of nutrient limitation could have lead to altered species interactions. These findings suggest that elevated levels of N and CO2 altered patterns of AMF community assembly, with potential effects on ecosystem function.

show abstract

Section: Limited Interactive Effects Of Experimental Global Changementioning

confidence: 70%

Section: Amf Phylogenetic Community Assemblymentioning

confidence: 99%

Section: Amf Phylogenetic Community Assemblymentioning

confidence: 99%

See 1 more Smart Citation

Shifts in the phylogenetic structure of arbuscular mycorrhizal fungi in response to experimental nitrogen and carbon dioxide additions

Mueller

Bohannan

2015

Oecologia

View full text Add to dashboard Cite

show abstract

“…Numerous field studies have shown that improved soil fertility increases plant productivity, but also decreases plant species diversity and changes plant community composition mainly through the enhanced process of competitive exclusion (Rajaniemi, 2002;Hautier et al, 2009;Borer et al, 2014;Liu et al, 2015). Diverse belowground communities of microorganisms interact with plants and serve as key players in biogeochemical cycling (Fitter et al, 2005;Philippot et al, 2013), but in comparison with that of plant community, relative little is known about the patterns and underlying mechanisms of belowground community responses to soil nutrient enrichments.…”

Section: Introductionmentioning

confidence: 99%

“…Many experiments have shown that fertilization reduces AM fungal diversity and shifts the community toward dominance of particular species or lineages (e.g. Johnson, 1993;EgertonWarburton et al, 2007;Alguacil et al, 2010;Liu et al, 2012Liu et al, , 2015Camenzind et al, 2014). However, neutral or even positive effects of fertilization on AM fungal diversity have also been reported (e.g.…”

Section: Introductionmentioning

confidence: 99%

Phylogenetic structure of arbuscular mycorrhizal community shifts in response to increasing soil fertility

Liu

Johnson

Lin

et al. 2015

Soil Biology and Biochemistry

Self Cite

110

View full text Add to dashboard Cite

a b s t r a c tUnderstanding the underlying mechanisms driving responses of belowground communities to increasing soil fertility will facilitate predictions of ecosystem responses to anthropogenic eutrophication of terrestrial systems. We studied the impact of fertilization of an alpine meadow on arbuscular mycorrhizal (AM) fungi, a group of root-associated microorganisms that are important in maintaining sustainable ecosystems. Species and phylogenetic composition of AM fungal communities in soils were compared across a soil fertility gradient generated by 8 years of combined nitrogen and phosphorus fertilization. Phylogenetic patterns were used to infer the ecological processes structuring the fungal communities. We identified 37 AM fungal virtual taxa, mostly in the genus Glomus. High fertilizer treatments caused a dramatic loss of Glomus species, but a significant increase in genus richness and a shift towards dominance of the lineage of Diversispora. AM fungal communities were phylogenetically clustered in unfertilized soil, random in the low fertilizer treatment and over-dispersed in the high fertilizer treatments, suggesting that the primary ecological process structuring communities shifted from environmental filtering (selection by host plants and fungal niches) to a stochastic process and finally to competitive exclusion across the fertilization gradient. Our findings elucidate the community shifts associated with increased soil fertility, and suggest that high fertilizer inputs may change the dominant ecological processes responsible for the assembly of AM fungal communities towards increased competition as photosynthate from host plants becomes an increasingly limited resource.

show abstract

Community structure and functional group of root‐associated Fungi of Pinus sylvestris var. mongolica across stand ages in the Mu Us Desert

Zhao

Guo

Gao

et al. 2020

Ecology and Evolution

View full text Add to dashboard Cite

Root‐associated fungi (RAF) are an important factor affecting the host's growth, and their contribution to Pinus sylvestris var. mongolica plantation decline is substantial. Therefore, we selected three age groups of P. sylvestris plantations (26, 33, and 43 years), in the Mu Us Desert, to characterize the community structure and functional groups of RAF, identified by Illumina high‐throughput sequencing and FUNGuild platform, respectively. The effects of soil properties and enzyme activities on fungal diversity and functional groups were also examined. The results indicated that (a) 805 operational taxonomic units of RAF associated with P. sylvestris belonged to six phyla and 163 genera. Diversity and richness were not significantly different in the three age groups, but community composition showed significant differences. Ascomycota and Basidiomycota dominated the fungal community, while Rhizopogon dominated in each plot. (b) The proportion of pathotrophs decreased with increasing age, while that of symbiotrophs increased sharply, which were mainly represented by ectomycorrhizal fungi. (c) Stand age and soil enzyme activity had a greater influence on fungal community composition than did soil properties, whereas environmental variables were not significantly correlated with fungal diversity and richness. Dynamics of fungal community composition and functional groups with the aging plantations reflected the growth state of P. sylvestris and were related to plantation degradation.

show abstract

Resource availability differentially drives community assemblages of plants and their root-associated arbuscular mycorrhizal fungi

Cited by 61 publications

References 61 publications

Shifts in the phylogenetic structure of arbuscular mycorrhizal fungi in response to experimental nitrogen and carbon dioxide additions

Shifts in the phylogenetic structure of arbuscular mycorrhizal fungi in response to experimental nitrogen and carbon dioxide additions

Phylogenetic structure of arbuscular mycorrhizal community shifts in response to increasing soil fertility

Community structure and functional group of root‐associated Fungi of Pinus sylvestris var. mongolica across stand ages in the Mu Us Desert

Contact Info

Product

Resources

About