Above- and below-ground interactions with agricultural management: Effects of soil microbial communities on barley and aphids

Pedobiologia ◽  
2014 ◽  
Vol 57 (2) ◽  
pp. 67-74 ◽  
Author(s):  
Alwyn Williams ◽  
Klaus Birkhofer ◽  
Katarina Hedlund
Keyword(s):  
Microbial Communities ◽  
Soil Microbial Communities ◽  
Agricultural Management ◽  
Soil Microbial ◽  
Below Ground ◽  
Management Effects

scholarly journals Contribution of above- and below-ground plant traits to the structure and function of grassland soil microbial communities

2014 ◽  
Vol 114 (5) ◽  
pp. 1011-1021 ◽  
Author(s):  
N. Legay ◽  
C. Baxendale ◽  
K. Grigulis ◽  
U. Krainer ◽  
E. Kastl ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Plant Traits ◽  
Soil Microbial Communities ◽  
Structure And Function ◽  
Grassland Soil ◽  
Soil Microbial ◽  
Below Ground ◽  
And Function

scholarly journals Utilizing principles of Biodiversity Science to Guide Soil Microbial Communities for Sustainable Agriculture

2021 ◽  
Author(s):  
Seraina Lisa Cappelli ◽  
Luiz Domeignoz Horta ◽  
Viviana Loaiza ◽  
Anna-Liisa Laine
Keyword(s):  
Microbial Communities ◽  
Plant Diversity ◽  
Ecosystem Functioning ◽  
Production Systems ◽  
Soil Microbial Communities ◽  
Empirical Support ◽  
Soil Biodiversity ◽  
Sustainable Food ◽  
Soil Microbial ◽  
Below Ground

While the positive relationship between plant biodiversity and ecosystem functioning (BEF) is relatively well-established, far less in known about the extent to which this relationship is mediated via below-ground microbial responses to plant diversity. Limited evidence suggests that the diversity of soil microbial communities is sensitive to plant community structure, and that diverse soil microbial communities promote functions desired of sustainable food production systems such as enhanced carbon sequestration and nutrient cycling. Here, we discuss available evidence on how plant diversity could be utilized to purposefully guide soil biodiversity in agricultural systems that are typically depleted of biodiversity, and are notoriously sensitive to both biotic and abiotic stressors. We outline the direct and soil microbe-mediated mechanisms expected to promote a positive BEF relationship both above- and below-ground. Finally, we identify management schemes based on ecological theory and vast empirical support that can be utilized to maximize ecosystem functioning in agroecosystems via biodiversity implementation schemes.

scholarly journals Enhanced soil quality after forest conversion to vegetable cropland and tea plantation has contrasting effects on soil microbial structure and functions

2021 ◽  
Author(s):  
Lichao Fan ◽  
Guodong Shao ◽  
Yinghua Pan ◽  
Hongcui Dai ◽  
Lan Zhang ◽  
...  
Keyword(s):  
Land Use ◽  
Microbial Communities ◽  
Soil Quality ◽  
Soil Microbial Communities ◽  
Agricultural Management ◽  
Forest Conversion ◽  
Ammonia Oxidizing Bacteria ◽  
Soil Microbial ◽  
Tea Plantations ◽  
Structure And Functions

Land-use changes could potentially exert a strong influence on soil quality and soil microbial communities. Moreover, microbial taxa are also important drivers of soil ecological functions. However, the linkage between soil quality and soil microbial communities is in need of deeper understanding. In this study, we examined the effects of soil quality on microbial community structure and functions after forest conversion to vegetable cropland and tea plantations. Soil quality index was significantly increased after natural forest conversion to vegetable cropland and tea plantations. Soil bacterial beta diversity significantly correlated to soil quality, but the sensitivity of individual microbial groups varied in response to changes in soil quality. Higher soil quality promoted bacterial diversity in vegetable cropland but decreased it in tea plantations, which implied soil quality was a structural factor in bacterial community composition but had contrasting effects for croplands versus plantations. Agricultural management played a negative role in maintaining microbial interactions, as identified by the network analysis, and furthermore the analysis revealed key functions of the microbial communities. After land-use change, the abundance (e.g., level, intensity) of microbial N-cycling function increased in tea plantations but decreased in vegetable cropland. The abundance of C-cycling function featured an opposite trend. Higher level of N-fixation in tea plantations but the higher abundance of N-oxidation in vegetable cropland was demonstrated. Higher abundance of ammonia-oxidizing bacteria and ammonia-oxidizing archaea as identified by qPCR in vegetable cropland corroborated the FAPROTAX function prediction. Therefore, the key taxa of soil microbial communities and microbial functions were largely dependent on changes in soil quality and determined responses to specific agricultural management.

Alkaline soil pH affects bulk soil, rhizosphere and root endosphere microbiomes of plants growing in a Sandhills ecosystem

2021 ◽  
Vol 97 (4) ◽  
Author(s):  
Lucas Dantas Lopes ◽  
Jingjie Hao ◽  
Daniel P Schachtman
Keyword(s):  
Microbial Communities ◽  
Plant Species ◽  
Soil Ph ◽  
Soil Microbial Communities ◽  
Bulk Soil ◽  
Strong Impact ◽  
Alkaline Soil ◽  
Alkaline Soils ◽  
Soil Microbial ◽  
Soil Rhizosphere

ABSTRACT Soil pH is a major factor shaping bulk soil microbial communities. However, it is unclear whether the belowground microbial habitats shaped by plants (e.g. rhizosphere and root endosphere) are also affected by soil pH. We investigated this question by comparing the microbial communities associated with plants growing in neutral and strongly alkaline soils in the Sandhills, which is the largest sand dune complex in the northern hemisphere. Bulk soil, rhizosphere and root endosphere DNA were extracted from multiple plant species and analyzed using 16S rRNA amplicon sequencing. Results showed that rhizosphere, root endosphere and bulk soil microbiomes were different in the contrasting soil pH ranges. The strongest impact of plant species on the belowground microbiomes was in alkaline soils, suggesting a greater selective effect under alkali stress. Evaluation of soil chemical components showed that in addition to soil pH, cation exchange capacity also had a strong impact on shaping bulk soil microbial communities. This study extends our knowledge regarding the importance of pH to microbial ecology showing that root endosphere and rhizosphere microbial communities were also influenced by this soil component, and highlights the important role that plants play particularly in shaping the belowground microbiomes in alkaline soils.

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