scholarly journals Soil Microbial Responses to Elevated CO2 and O3 in a Nitrogen-Aggrading Agroecosystem

2014 ◽  
pp. 277-307
Keyword(s):  
Elevated Co2 ◽  
Soil Microbial ◽  
Elevated Co2 And O3 ◽  
Microbial Responses

scholarly journals Soil Microbial Responses to Elevated CO2 and O3 in a Nitrogen-Aggrading Agroecosystem

PLoS ONE ◽  
2011 ◽  
Vol 6 (6) ◽  
pp. e21377 ◽  
Author(s):  
Lei Cheng ◽  
Fitzgerald L. Booker ◽  
Kent O. Burkey ◽  
Cong Tu ◽  
H. David Shew ◽  
...  
Keyword(s):  
Elevated Co2 ◽  
Soil Microbial ◽  
Elevated Co2 And O3 ◽  
Microbial Responses

scholarly journals Distinct responses of soil microbial communities to elevated CO2 and O3 in a soybean agro-ecosystem

2013 ◽  
Vol 8 (3) ◽  
pp. 714-726 ◽  
Author(s):  
Zhili He ◽  
Jinbo Xiong ◽  
Angela D Kent ◽  
Ye Deng ◽  
Kai Xue ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Elevated Co2 ◽  
Soil Microbial Communities ◽  
Soil Microbial ◽  
Elevated Co2 And O3

Commonwealth of Soil Health: How Do Earthworms Modify the Soil Microbial Responses to CeO2 Nanoparticles?

2021 ◽  
Author(s):  
Wenxing Li ◽  
Peihua Zhang ◽  
Hao Qiu ◽  
Cornelis A. M. Van Gestel ◽  
Willie J. G. M. Peijnenburg ◽  
...  
Keyword(s):  
Soil Health ◽  
Ceo2 Nanoparticles ◽  
Soil Microbial ◽  
Microbial Responses

scholarly journals Impact of elevated CO2 and O3 on gas exchange parameters and epidermal characteristics in potato (Solanum tuberosum L.)

2002 ◽  
Vol 53 (369) ◽  
pp. 737-746 ◽  
Author(s):  
Tracy Lawson ◽  
Jim Craigon ◽  
Colin R. Black ◽  
Jeremy J. Colls ◽  
Geoff Landon ◽  
...  
Keyword(s):  
Solanum Tuberosum ◽  
Gas Exchange ◽  
Elevated Co2 ◽  
Solanum Tuberosum L ◽  
Gas Exchange Parameters ◽  
Elevated Co2 And O3 ◽  
Exchange Parameters

scholarly journals Early Spring Snowmelt and Summer Droughts Strongly Impair the Resilience of Key Microbial Communities in Subalpine Grassland Ecosystems

2021 ◽  
Author(s):  
Farhan Hafeez ◽  
Lionel Bernard ◽  
Jean-Christophe Clement ◽  
Franck Poly ◽  
Thomas Pommier
Keyword(s):  
Microbial Communities ◽  
Plant Biomass ◽  
Early Spring ◽  
Climatic Extremes ◽  
Soil Microbial ◽  
Cascading Effect ◽  
Growing Seasons ◽  
Grassland Ecosystems ◽  
Microbial Responses ◽  
Early Snowmelt

Subalpine grassland ecosystems are important from biodiversity, agriculture, and touristic perspectives but their resilience to seasonally occurring climatic extremes is increasingly challenged with climate change, accelerating their vulnerability to tipping points. Microbial communities, which are central in ecosystem functioning, are usually considered as more resistant and highly resilient to such extreme events due to their functional redundancy and strong selection in residing habitats. To investigate this, we explored the soil microbial responses upon recurrent summer droughts associated with early snowmelt in grasslands mesocosms set-up at the Lautaret Pass (French Alps). Potential respiration, nitrification and denitrification were monitored over a period of two growing seasons along with quantification of community gene abundances of total bacteria as well as (de)nitrifiers. Results revealed that droughts had a low and short-term impact on bacterial total respiration supporting their hypothesized high resistance and ability to recover. Nitrification and abundances of the corresponding functional guilds showed relatively strong resistance to summer droughts but declined in response to early snowmelt. This triggered a cascading effect on denitrification but also on the abundances of denitrifying communities which could recover from all climatic extremes except from the summer droughts where nitrifiers were collapsed. Denitrification and the respective functional groups faced high impact of applied stresses with strong reduction in the abundance and activity of this specialized community. Although, the consequently lower microbial competition for nitrate may be positive for plant biomass production, warnings exist when considering the potential nitrogen leaching from these ecosystems as well as risks of greenhouses gases emission such as N2O

Soil CO2 efflux of two silver birch clones exposed to elevated CO2 and O3 levels during three growing seasons

2004 ◽  
Vol 10 (10) ◽  
pp. 1654-1665 ◽  
Author(s):  
Anne Kasurinen ◽  
Paula Kokko-Gonzales ◽  
Johanna Riikonen ◽  
Elina Vapaavuori ◽  
Toini Holopainen
Keyword(s):  
Elevated Co2 ◽  
Soil Co2 Efflux ◽  
Silver Birch ◽  
Co2 Efflux ◽  
Soil Co2 ◽  
Growing Seasons ◽  
Elevated Co2 And O3

scholarly journals Resilience and Assemblage of Soil Microbiome in Response to Chemical Contamination Combined with Plant Growth

2019 ◽  
Vol 85 (6) ◽  
Author(s):  
Shuo Jiao ◽  
Weimin Chen ◽  
Gehong Wei
Keyword(s):  
Microbial Communities ◽  
Soil Microbial Communities ◽  
Soil Microbiome ◽  
Chemical Contamination ◽  
Plant Interactions ◽  
Soil Microbial Diversity ◽  
Soil Microbial ◽  
Microbial Responses ◽  
Legume Plants ◽  
Functional Profiles

ABSTRACT A lack of knowledge of the microbial responses to environmental change at the species and functional levels hinders our ability to understand the intrinsic mechanisms underlying the maintenance of microbial ecosystems. Here, we present results from temporal microcosms that introduced inorganic and organic contaminants into agro-soils for 90 days, with three common legume plants. Temporal dynamics and assemblage of soil microbial communities and functions in response to contamination under the influence of growth of different plants were explored via sequencing of the 16S rRNA amplicon and by shotgun metagenomics. Soil microbial alpha diversity and structure at the taxonomic and functional levels exhibited resilience patterns. Functional profiles showed greater resilience than did taxonomic ones. Different legume plants imposed stronger selection on taxonomic profiles than on functional ones. Network and random forest analyses revealed that the functional potential of soil microbial communities was fostered by various taxonomic groups. Betaproteobacteria were important predictors of key functional traits such as amino acid metabolism, nucleic acid metabolism, and hydrocarbon degradation. Our study reveals the strong resilience of the soil microbiome to chemical contamination and sensitive responses of taxonomic rather than functional profiles to selection processes induced by different legume plants. This is pivotal to develop approaches and policies for the protection of soil microbial diversity and functions in agro-ecosystems with different response strategies from global environmental drivers, such as soil contamination and plant invasion. IMPORTANCE Exploring the microbial responses to environmental disturbances is a central issue in microbial ecology. Understanding the dynamic responses of soil microbial communities to chemical contamination and the microbe-soil-plant interactions is essential for forecasting the long-term changes in soil ecosystems. Nevertheless, few studies have applied multi-omics approaches to assess the microbial responses to soil contamination and the microbe-soil-plant interactions at the taxonomic and functional levels simultaneously. Our study reveals clear succession and resilience patterns of soil microbial diversity and structure in response to chemical contamination. Different legume plants exerted stronger selection processes on taxonomic than on functional profiles in contaminated soils, which could benefit plant growth and fitness as well as foster the potential abilities of hydrocarbon degradation and metal tolerance. These results provide new insight into the resilience and assemblage of soil microbiome in response to environmental disturbances in agro-ecosystems at the species and functional levels.

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