Plant and soil fungal but not soil bacterial communities are linked in long-term fertilized grassland

Cassman, Noriko A.; Leite, Márcio Fernandes Alves; Pan, Yao; Hollander, Mattias de; Veen, Johannes A. van; Kuramae, Eiko E.

doi:10.1038/srep23680

Cited by 113 publications

(76 citation statements)

References 45 publications

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“…Cassman et al. (), on the contrary, found co‐structures between the plant and soil fungal communities but not between the plant and soil bacterial communities in grassland ecosystems with long‐term N addition. The difference between our study and Cassman et al.…”

Section: Discussionmentioning

confidence: 95%

“…We conducted co‐inertia analysis (hereafter referred to as COIA), a general and flexible eigenvector framework with no constraint regarding the number of variables that allows to measure the concordance (i.e. co‐structure) between two multivariate datasets that share the same objects (plots in our case) (Dolédec & Chessel, ; Dray, Chessel, & Thioulouse, ). The method finds a common space into which the plots and species of the datasets can be projected and compared (the distance between plots reflects their similarity).…”

Section: Methodsmentioning

confidence: 99%

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Plant and soil microbe responses to light, warming and nitrogen addition in a temperate forest

Verheyen

Props

et al. 2018

Functional Ecology

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Temperate forests across Europe and eastern North America have become denser since the 1950s due to less intensive forest management and global environmental changes such as nitrogen deposition and climate warming. Denser tree canopies result in lower light availability at the forest floor. This shade may buffer the effects of nitrogen deposition and climate warming on understorey plant communities. We conducted an innovative in situ field experiment to study the responses of co‐occurring soil microbial and understorey plant communities to nitrogen addition, enhanced light availability and experimental warming in a full‐factorial design. We determined the effects of multiple environmental drivers and their interactions on the soil microbial and understorey plant communities, and assessed to what extent the soil microbial and understorey plant communities covary. High light led to lower biomass of the soil microbes (analysed by phospholipid fatty acids), but the soil microbial structure, i.e. the ratio of fungal biomass to bacterial biomass, was not affected by light availability. The composition of the soil bacterial community (analysed by high‐throughput sequencing) was affected by both light availability and warming (and their interaction), but not by nitrogen addition. Yet, the number of unique operational taxonomic units was higher in plots with nitrogen addition, and there were significant interactive effects of light and nitrogen addition. Light availability also determined the composition of the plant community; no effects of nitrogen addition and warming were observed. The soil bacterial and plant communities were co‐structured, and light availability explained a large part of the variance of this co‐structure. We provide robust evidence for the key role of light in affecting both the soil microbial and plant communities in forest understoreys. Our results advocate for more multifactor global change experiments that investigate the mechanism underlying the (in) direct effects of light on the plant–soil continuum in forests. A http://onlinelibrary.wiley.com/doi/10.1111/1365-2435.13061/suppinfo is available for this article.

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Section: Discussionmentioning

confidence: 95%

Section: Methodsmentioning

confidence: 99%

Plant and soil microbe responses to light, warming and nitrogen addition in a temperate forest

Verheyen

Props

et al. 2018

Functional Ecology

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“…Although studies of combined fungal and bacterial diversity and community composition have been performed in rhizosphere, very few studies have directly correlated the composition of one community to another [15, 16]. Particularly in sorghum, as far as we know, there are no studies on mutual effects on the composition and diversity of bacteria and fungi in the rhizosphere.…”

Section: Introductionmentioning

confidence: 99%

Co-Variation of Bacterial and Fungal Communities in Different Sorghum Cultivars and Growth Stages is Soil Dependent

2017

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Rhizosphere microbial community composition can be influenced by different biotic and abiotic factors. We investigated the composition and co-variation of rhizosphere bacterial and fungal communities from two sorghum genotypes (BRS330 and SRN-39) in three different plant growth stages (emergence of the second leaf, (day10), vegetative to reproductive differentiation point (day 35), and at the last visible emerged leaf (day 50)) in two different soil types, Clue field (CF) and Vredepeel (VD). We observed that either bacterial or fungal community had its composition stronger influenced by soil followed by plant growth stage and cultivar. However, the influence of plant growth stage was higher on fungal community composition than on the bacterial community composition. Furthermore, we showed that sorghum rhizosphere bacterial and fungal communities can affect each other’s composition and structure. The decrease in relative abundance of the fungus genus Gibberella over plant growth stages was followed by decrease of the bacterial families Oxalobacteracea and Sphingobacteriacea. Although cultivar effect was not the major responsible for bacterial and fungal community composition, cultivar SRN-39 showed to promote a stronger co-variance between bacterial and fungal communities.Electronic supplementary materialThe online version of this article (10.1007/s00248-017-1108-6) contains supplementary material, which is available to authorized users.

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“…In previous studies on grassland soils, soil fertilisation and land-use intensification have both been linked to shifts in richness and diversity of soil microbial communities. 55,56 Using distance-based redundancy analysis, we found that the composition and pattern of the bacterial communities in agricultural soils compared to natural grassland soils were influenced significantly by both soil pH (R=0.008, p=0.002) and phosphorus concentrations (R=0.013, p=0.002) (Supplementary figure 6). Our results are in agreement with previous studies which have shown that soil pH and nutrient availability shaped soil bacterial diversity.…”

Section: Volume 114 | Number 5/6mentioning

confidence: 99%

“…The high concentration of phosphorus observed in agricultural soils may be explained by mineral fertilisation commonly used in agriculture practices to improve plant performance. 55,56 Members of the soil microbial community, particularly bacteria, are capable of solubilising soil phosphate minerals into a usable form for plant uptake, which may influence the mineral concentration in the soil. 57 The differences observed in the composition and pattern of the bacterial and fungal communities (according to ANOSIM analyses) in agricultural soils compared with those in natural grassland soils, can potentially be explained by the differences in the soil chemistry of the two habitats.…”

Section: Volume 114 | Number 5/6mentioning

confidence: 99%

Arable agriculture changes soil microbial communities in the South African Grassland Biome

Nkuekam¹,

Cowan²,

Valverde³

2018

S. Afr. J. Sci.

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Many studies, mostly in temperate regions of the northern hemisphere, have demonstrated that agricultural practices affect the composition and diversity of soil microbial communities. However, very little is known about the impact of agriculture on the microbial communities in other regions of the world, most particularly on the African continent. In this study, we used MiSeq amplicon sequencing of bacterial 16S rRNA genes and fungal ITS regions to characterise microbial communities in agricultural and natural grassland soils located in the Mpumalanga Province of South Africa. Nine soil chemical parameters were also measured to evaluate the effects of edaphic factors on microbial community diversity. Bacterial and fungal communities were significantly richer and more diverse in natural grassland than in agricultural soils. Microbial taxonomic composition was also significantly different between the two habitat types. The phylum Acidobacteria was significantly more abundant in natural grassland than in agricultural soils, while Actinobacteria and the family Nectriaceae showed the opposite pattern. Soil pH and phosphorus significantly influenced bacterial communities, whereas phosphorus and calcium influenced fungal communities. These findings may be interpreted as a negative impact of land-use change on soil microbial diversity and composition.

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Plant and soil fungal but not soil bacterial communities are linked in long-term fertilized grassland

Cited by 113 publications

References 45 publications

Plant and soil microbe responses to light, warming and nitrogen addition in a temperate forest

Plant and soil microbe responses to light, warming and nitrogen addition in a temperate forest

Co-Variation of Bacterial and Fungal Communities in Different Sorghum Cultivars and Growth Stages is Soil Dependent

Arable agriculture changes soil microbial communities in the South African Grassland Biome

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