scholarly journals Microbial Communities in Bioswale Soils and Their Relationships to Soil Properties, Plant Species, and Plant Physiology

2019 ◽  
Vol 10 ◽  
Author(s):  
Olivia L. Brodsky ◽  
Katherine L. Shek ◽  
Devin Dinwiddie ◽  
Sarah G. Bruner ◽  
Aman S. Gill ◽  
...  
Keyword(s):  
Plant Physiology ◽  
Soil Properties ◽  
Microbial Communities ◽  
Plant Species

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.

scholarly journals Effect of Soil Diversity on Forest Plant Species Abundance: A Case Study from Central-European Highlands

Forests ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 534
Author(s):  
Pavel Samec ◽  
Jiří Volánek ◽  
Miloš Kučera ◽  
Pavel Cudlín
Keyword(s):  
Soil Properties ◽  
Plant Species ◽  
Plant Diversity ◽  
Species Abundance ◽  
Plant Distribution ◽  
Soil Diversity ◽  
Abiotic Environment ◽  
Soil Group ◽  
Biogeographical Regions ◽  
Forest Distribution

Plant distribution is most closely associated with the abiotic environment. The abiotic environment affects plant species’ abundancy unevenly. The asymmetry is further deviated by human interventions. Contrarily, soil properties preserve environmental influences from the anthropogenic perturbations. The study examined the supra-regional similarities of soil effects on plant species’ abundance in temperate forests to determine: (i) spatial relationships between soil property and forest-plant diversity among geographical regions; (ii) whether the spatial dependencies among compared forest-diversity components are influenced by natural forest representation. The spatial dependence was assessed using geographically weighted regression (GWR) of soil properties and plant species abundance from forest stands among 91 biogeographical regions in the Czech Republic (Central Europe). Regional soil properties and plant species abundance were acquired from 7550 national forest inventory plots positioned in a 4 × 4 km grid. The effect of natural forests was assessed using linear regression between the sums of squared GWR residues and protected forest distribution in the regions. Total diversity of forest plants is significantly dependent on soil-group representation. The soil-group effect is more significant than that of bedrock bodies, most of all in biogeographical regions with protected forest representation >50%. Effects of soil chemical properties were not affected by protected forest distribution. Spatial dependency analysis separated biogeographical regions of optimal forest plant diversity from those where inadequate forest-ecosystem diversity should be increased alongside soil diversity.

Soil microbial communities alter leaf chemistry and influence allelopathic potential among coexisting plant species

Oecologia ◽  
2017 ◽  
Vol 183 (4) ◽  
pp. 1155-1165 ◽  
Author(s):  
Scott J. Meiners ◽  
Kelsey K. Phipps ◽  
Thomas H. Pendergast ◽  
Thomas Canam ◽  
Walter P. Carson
Keyword(s):  
Microbial Communities ◽  
Plant Species ◽  
Soil Microbial Communities ◽  
Leaf Chemistry ◽  
Allelopathic Potential ◽  
Soil Microbial

scholarly journals Soil microbial communities in the face of changing farming practices: A case study in an agricultural landscape in France

PLoS ONE ◽  
2021 ◽  
Vol 16 (6) ◽  
pp. e0252216
Author(s):  
Laurie Dunn ◽  
Christophe Lang ◽  
Nicolas Marilleau ◽  
Sébastien Terrat ◽  
Luc Biju-Duval ◽  
...  
Keyword(s):  
Microbial Biomass ◽  
Soil Properties ◽  
Microbial Communities ◽  
Soil Microorganisms ◽  
Soil Microbial Communities ◽  
Partial Least Square ◽  
Farming Practices ◽  
Soil Microbial ◽  
Bacterial Richness ◽  
Over Time

According to biogeography studies, the abundance and richness of soil microorganisms vary across multiple spatial scales according to soil properties and farming practices. However, soil microorganisms also exhibit poorly understood temporal variations. This study aimed at better understanding how soil microbial communities respond to changes in farming practices at a landscape scale over time. A regular grid of 269 sites was set up across a 1,200 ha farming landscape, and soil samples were characterized for their molecular microbial biomass and bacterial richness at two dates (2011 and 2016). A mapping approach highlighted that spatial microbial patterns were stable over time, while abundance and richness levels were modified. The drivers of these changes were investigated though a PLS-PM (partial least square path-modeling) approach. Soil properties were stable over time, but farming practices changed. Molecular microbial biomass was mainly driven by soil resources, whereas bacterial richness depended on both farming practices and ecological parameters. Previous-crop and management effects and a temporal dependence of the microbial community on the historical farming management were also highlighted.

Influence of plant species on physical, chemical and biological soil properties in a Mediterranean forest soil

2008 ◽  
Vol 129 (1) ◽  
pp. 15-24 ◽  
Author(s):  
A. Pérez-Bejarano ◽  
J. Mataix-Solera ◽  
R. Zornoza ◽  
C. Guerrero ◽  
V. Arcenegui ◽  
...  
Keyword(s):  
Soil Properties ◽  
Forest Soil ◽  
Plant Species ◽  
Mediterranean Forest ◽  
Physical Chemical

scholarly journals Relationship between Wetland Plant Communities and Environmental Factors in the Tumen River Basin in Northeast China

2019 ◽  
Vol 11 (6) ◽  
pp. 1559 ◽  
Author(s):  
Xiaojun Zheng ◽  
Jing Fu ◽  
Noelikanto Ramamonjisoa ◽  
Weihong Zhu ◽  
Chunguang He ◽  
...  
Keyword(s):  
Soil Properties ◽  
River Basin ◽  
Plant Species ◽  
Plant Communities ◽  
Northeast China ◽  
Floristic Composition ◽  
Available Phosphorus ◽  
Wetland Plant ◽  
Tumen River ◽  
Wetland Plant Communities

Understanding what controls wetland vegetation community composition is vital to conservation and biodiversity management. This study investigates the factors that affect wetland plant communities and distribution in the Tumen River Basin, Northeast China, an internationally important wetland for biodiversity conservation. We recorded floristic composition of herbaceous plants, soil properties, and microclimatic variables in 177, 1 × 1 m2 quadrats at 45 sites, located upstream (26), midstream (12), and downstream (7) of the Basin. We used TWINSPAN to define vegetation communities and canonical correspondence analysis (CCA) to examine the relationships between environmental and biological factors within the wetland plant communities. We recorded 100 plant species from 93 genera and 40 families in the upstream, 100 plant species from 57 genera and 31 families in the midstream, and 85 plant species from 76 genera and 38 families in the downstream. Higher species richness was recorded upstream of the River Basin. The plant communities and distribution were influenced by elevation, soil properties (total potassium, pH, and available phosphorus), and microclimate variables (surface temperature, precipitation, average temperature, sunshine hours, and relative humidity). More than any other factor, according to our results, elevation strongly influenced the structure of wetland plant communities. These findings support prevailing models describing the distribution of wetland plants along environmental gradients. The determination of the relationship between soil and plants is a useful way to better understand the ecosystem condition and can help manage the wetland ecosystem.

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