Soil microbial community structure and function relationships: A heat stress experiment

Riah‐Anglet, Wassila; Trinsoutrot‐Gattin, Isabelle; Martin-Laurent, Fabrice; Laroche-Ajzenberg, Emilie; Norini, Marie-Paule; Latour, Xavier; Laval, Karine

doi:10.1016/j.apsoil.2014.10.001

Cited by 86 publications

(63 citation statements)

References 88 publications

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“…It can be argued that microbes are more efficient in a certain range of temperatures (Barcenas‐Moreno et al ., ) and beyond this range could have negative impact on microbial growth. The reduction in bacterial abundance and diversity by high temperatures was consistent with previous studies as temperature is the main climatic factor that influences bacteria (Allison and Treseder, ; Riah‐Anglet et al ., ; Wu et al ., ). Considering home temperatures of three provenances, soil microbes linked to provenances from cooler origin (temperate provenance), were better acclimatized to warming than to soil microbes linked to provenances from warmer origin (subtropical and tropical provenance) which were probably approaching their thermal limits and may be negatively influenced by warming.…”

Section: Resultsmentioning

confidence: 99%

Intraspecies variation in a widely distributed tree species regulates the responses of soil microbiome to different temperature regimes

Zhang

Delgado‐Baquerizo

Drake

et al. 2018

Environ Microbiol Rep

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Plant characteristics in different provenances within a single species may vary in response to climate change, which might alter soil microbial communities and ecosystem functions. We conducted a glasshouse experiment and grew seedlings of three provenances (temperate, subtropical and tropical origins) of a tree species (i.e., Eucalyptus tereticornis) at different growth temperatures (18, 21.5, 25, 28.5, 32 and 35.5°C) for 54 days. At the end of the experiment, bacterial and fungal community composition, diversity and abundance were characterized. Measured soil functions included surrogates of microbial respiration, enzyme activities and nutrient cycling. Using Permutation multivariate analysis of variance (PerMANOVA) and network analysis, we found that the identity of tree provenances regulated both structure and function of soil microbiomes. In some cases, tree provenances substantially affected the response of microbial communities to the temperature treatments. For example, we found significant interactions of temperature and tree provenance on bacterial community and relative abundances of Chloroflexi and Zygomycota, and inorganic nitrogen. Microbial abundance was altered in response to increasing temperature, but was not affected by tree provenances. Our study provides novel evidence that even a small variation in biotic components (i.e., intraspecies tree variation) can significantly influence the response of soil microbial community composition and specific soil functions to global warming.

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Section: Resultsmentioning

confidence: 99%

Intraspecies variation in a widely distributed tree species regulates the responses of soil microbiome to different temperature regimes

Zhang

Delgado‐Baquerizo

Drake

et al. 2018

Environ Microbiol Rep

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“…The function of microbial communities is determined by the microbes composing them (Yasuda et al ., ; Fierer et al ., ; Riah‐Anglet et al ., ). Nitrogen fertilization is a main driver of microbial community structure, which deeply altered the abundance profile of N metabolism genes in this long‐term study.…”

Section: Discussionmentioning

confidence: 97%

Long‐term effects of nitrogen and phosphorus fertilization on soil microbial community structure and function under continuous wheat production

Tremblay

Bainard

et al. 2019

Environmental Microbiology

113

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Summary Soil microorganisms play a critical role in the biosphere, and the influence of cropland fertilization on the evolution of soil as a living entity is being actively documented. In this study, we used a shotgun metagenomics approach to globally expose the effects of 50‐year N and P fertilization of wheat on soil microbial community structure and function, and their potential involvement in overall N cycling. Nitrogen (N) fertilization increased alpha diversity in archaea and fungi while reducing it in bacteria. Beta diversity of archaea, bacteria and fungi, as well as soil function, were also mainly driven by N fertilization. The abundance of archaea was negatively impacted by N fertilization while bacterial and fungal abundance was increased. The responses of N metabolism‐related genes to fertilization differed in archaea, bacteria and fungi. All archaeal N metabolic processes were decreased by N fertilization, while denitrification, assimilatory nitrate reduction and organic‐N metabolism were highly increased by N fertilization in bacteria. Nitrate assimilation was the main contribution of fungi to N cycling. Thaumarchaeota and Halobacteria in archaea; Actinobacteria, Alphaproteobacteria, Betaproteobacteria, Gammaproteobacteria and Deltaproteobacteria in bacteria; and Sordariomycetes in fungi participated dominantly and widely in soil N metabolic processes.

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“…Smith () defined a climate extreme as a statistically rare event that can ‘alter ecosystem structure and/or function well outside the bounds of what is considered typical or normal variability’. Research based on extreme events has already yielded insights into belowground dynamics (Evans & Wallenstein, ), but these experiments have largely been carried out using laboratory soil incubations (Barcenas‐Moreno et al ., ; Riah‐Anglet et al ., ), thus separating linkages between vegetation and soil microbes. Important questions remain about the relevance of the plant–soil–microorganism carbon continuum in extreme climate event scenarios, including at which point (i.e., threshold) is the plant–soil–microorganism connectivity lost?…”

Section: Introductionmentioning

confidence: 97%

“…Observations and syntheses of microbial community response to climate change, including drying and warming, are emerging; however, resolving stress‐response strategies of microorganisms remains an ongoing challenge in environmental microbiology (Schimel et al ., ; Lennon et al ., ; Evans & Wallenstein, ). For example, fungi have been shown to have a high tolerance for water stress, often attributed to their ability to spatially explore the soil better for water and nutrients (Frey et al ., ; Riah‐Anglet et al ., ). Additionally, due to their differences in cell wall structure, fungi and gram‐positive bacteria (which have a thick, interlinked peptidoglycan cell wall) are considered to have wide niche breadths with respect to soil moisture ranges and a stronger tolerance to desiccation (Schimel et al ., ; Lennon et al ., ).…”

Section: Introductionmentioning

confidence: 97%

Forest understory plant and soil microbial response to an experimentally induced drought and heat‐pulse event: the importance of maintaining the continuum

Rein

Geßler

Premke

et al. 2016

Global Change Biology

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Drought duration and intensity are expected to increase with global climate change. How changes in water availability and temperature affect the combined plant-soil-microorganism response remains uncertain. We excavated soil monoliths from a beech (Fagus sylvatica L.) forest, thus keeping the understory plant-microbe communities intact, imposed an extreme climate event, consisting of drought and/or a single heat-pulse event, and followed microbial community dynamics over a time period of 28 days. During the treatment, we labeled the canopy with (13) CO2 with the goal of (i) determining the strength of plant-microbe carbon linkages under control, drought, heat and heat-drought treatments and (ii) characterizing microbial groups that are tightly linked to the plant-soil carbon continuum based on (13) C-labeled PLFAs. Additionally, we used 16S rRNA sequencing of bacteria from the Ah horizon to determine the short-term changes in the active microbial community. The treatments did not sever within-plant transport over the experiment, and carbon sinks belowground were still active. Based on the relative distribution of labeled carbon to roots and microbial PLFAs, we determined that soil microbes appear to have a stronger carbon sink strength during environmental stress. High-throughput sequencing of the 16S rRNA revealed multiple trajectories in microbial community shifts within the different treatments. Heat in combination with drought had a clear negative effect on microbial diversity and resulted in a distinct shift in the microbial community structure that also corresponded to the lowest level of label found in the PLFAs. Hence, the strongest changes in microbial abundances occurred in the heat-drought treatment where plants were most severely affected. Our study suggests that many of the shifts in the microbial communities that we might expect from extreme environmental stress will result from the plant-soil-microbial dynamics rather than from direct effects of drought and heat on soil microbes alone.

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Soil microbial community structure and function relationships: A heat stress experiment

Cited by 86 publications

References 88 publications

Intraspecies variation in a widely distributed tree species regulates the responses of soil microbiome to different temperature regimes

Intraspecies variation in a widely distributed tree species regulates the responses of soil microbiome to different temperature regimes

Long‐term effects of nitrogen and phosphorus fertilization on soil microbial community structure and function under continuous wheat production

Forest understory plant and soil microbial response to an experimentally induced drought and heat‐pulse event: the importance of maintaining the continuum

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