scholarly journals The Coexistence Relationship Between Plants and Soil Bacteria Based on Interdomain Ecological Network Analysis

2021 ◽  
Vol 12 ◽  
Author(s):  
Wei Cong ◽  
Jingjing Yu ◽  
Kai Feng ◽  
Ye Deng ◽  
Yuguang Zhang
Keyword(s):  
Soil Bacteria ◽  
Bacterial Community Composition ◽  
Soil Microbial Communities ◽  
Soil Microbial ◽  
Microbial Group ◽  
Below Ground ◽  
Complex Relationships ◽  
And Function ◽  
The Relationship ◽  
Warm Temperate

The relationship between plants and their associated soil microbial communities plays a crucial role in maintaining ecosystem processes and function. However, identifying these complex relationships is challenging. In this study, we constructed an interdomain ecology network (IDEN) of plant–bacteria based on SparCC pairwise associations using synchronous aboveground plant surveys and belowground microbial 16S rRNA sequencing among four different natural forest types along the climate zones in China. The results found that a total of 48 plants were associated with soil bacteria among these four sites, and soil microbial group associations with specific plant species existed within the observed plant–bacteria coexistence network. Only 0.54% of operational taxonomy units (OTUs) was shared by the four sites, and the proportion of unique OTUs for each site ranged from 43.08 to 76.28%, which occupied a large proportion of soil bacterial community composition. The plant–bacteria network had a distinct modular structure (p < 0.001). The tree Acer tetramerum was identified as the network hubs in the warm temperate coniferous and broad-leaved mixed forests coexistence network and indicates that it may play a key role in stabilizing of the community structure of these forest ecosystems. Therefore, IDEN of plant–bacteria provides a novel perspective for exploring the relationships of interdomain species, and this study provides valuable insights into understanding coexistence between above-ground plants and below-ground microorganisms.

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

Native bacteria and cyanobacteria consortia improve seedling emergence and establishment in dryland restoration

2021 ◽  
Author(s):  
Frederick Dadzie ◽  
Angela Moles ◽  
Todd Erickson ◽  
Miriam Munoz-Rojas
Keyword(s):  
Soil Bacteria ◽  
Donor Site ◽  
Seedling Emergence ◽  
Soil Microbial Communities ◽  
Degraded Land ◽  
North West ◽  
Soil Microbial ◽  
Rehabilitation Programs ◽  
Significant Difference ◽  
Seedling Emergence And Survival

<p>Seed-based ecosystem restoration has huge potential to restore degraded lands but currently less than 10 % of directly sown seeds successfully establish in drylands. Soil microbial communities are important for improving plant establishment in degraded land. However, current methods such as soil translocation can potentially disturb the donor site. In this study, we investigated a novel non-destructive method for improving seedling growth of native plants used in restoration through seed-soil-microbial pelleting. We assessed seedling emergence and survival of <em>Triodia epactia</em> and <em>Acacia inaequilatera</em> seeds inoculated with whole soil bacteria and cyanobacteria consortia retrieved and isolated from a pristine ecosystem. A field experiment was set-up in a 35m x 40m purpose-built rain exclusion shelter that contained reconstructed soil profiles typically encountered in mine rehabilitation programs of Australia’s arid north-west. We hypothesized that inoculated seed-soil pellets would improve seedling emergence and survival of these species. After three weeks of planting, seedling emergence in microbially inoculated <em>Acacia</em> <em>inaequilatera</em> and <em>Triodia epactia</em> were 48% and 55% higher than non-inoculated seeds in bacteria and cyanobacteria, respectively. We also tested whether the use of cyanobacteria consortia as inocula promoted higher seedling emergence over whole soil bacteria. We found that there was no significant difference in seedling emergence between the microbial taxa. We show that, improving the diversity of soil microorganisms improves seedling emergence and the seed-soil pellet method used is viable to improve seed-based restoration outcomes.</p><p><strong>Key words</strong>: Seed-based restoration, microbial community, cyanobacteria, bacteria community, seedling emergence.</p>

Structure and function of alpine and arctic soil microbial communities

2005 ◽  
Vol 156 (7) ◽  
pp. 775-784 ◽  
Author(s):  
Diana R. Nemergut ◽  
Elizabeth K. Costello ◽  
Allen F. Meyer ◽  
Monte Y. Pescador ◽  
Michael N. Weintraub ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Soil Microbial Communities ◽  
Structure And Function ◽  
Soil Microbial ◽  
Arctic Soil ◽  
And Function

scholarly journals ATMOSPHERIC CO2AND THE COMPOSITION AND FUNCTION OF SOIL MICROBIAL COMMUNITIES

2000 ◽  
Vol 10 (1) ◽  
pp. 47-59 ◽  
Author(s):  
Donald R. Zak ◽  
Kurt S. Pregitzer ◽  
Peter S. Curtis ◽  
William E. Holmes
Keyword(s):  
Microbial Communities ◽  
Soil Microbial Communities ◽  
Soil Microbial ◽  
And Function

scholarly journals Divergence of dominant factors in soil microbial communities and functions in forest ecosystems along a climatic gradient

2018 ◽  
Vol 15 (4) ◽  
pp. 1217-1228 ◽  
Author(s):  
Zhiwei Xu ◽  
Guirui Yu ◽  
Xinyu Zhang ◽  
Nianpeng He ◽  
Qiufeng Wang ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Enzyme Activities ◽  
Soil Microbial Communities ◽  
Soil Enzyme ◽  
Secondary Forests ◽  
Soil Enzyme Activities ◽  
Climatic Zones ◽  
Soil Microbial ◽  
Warm Temperate ◽  
Microbial Plfas

Abstract. Soil microorganisms play an important role in regulating nutrient cycling in terrestrial ecosystems. Most of the studies conducted thus far have been confined to a single forest biome or have focused on one or two controlling factors, and few have dealt with the integrated effects of climate, vegetation, and soil substrate availability on soil microbial communities and functions among different forests. In this study, we used phospholipid-derived fatty acid (PLFA) analysis to investigate soil microbial community structure and extracellular enzymatic activities to evaluate the functional potential of soil microbes of different types of forests in three different climatic zones along the north–south transect in eastern China (NSTEC). Both climate and forest type had significant effects on soil enzyme activities and microbial communities with considerable interactive effects. Except for soil acid phosphatase (AP), the other three enzyme activities were much higher in the warm temperate zone than in the temperate and the subtropical climate zones. The soil total PLFAs and bacteria were much higher in the temperate zone than in the warm temperate and the subtropical zones. The soil β-glucosidase (BG) and N-acetylglucosaminidase (NAG) activities were highest in the coniferous forest. Except for the soil fungi and fungi–bacteria (F/B), the different groups of microbial PLFAs were much higher in the conifer broad-leaved mixed forests than in the coniferous forests and the broad-leaved forests. In general, soil enzyme activities and microbial PLFAs were higher in primary forests than in secondary forests in temperate and warm temperate regions. In the subtropical region, soil enzyme activities were lower in the primary forests than in the secondary forests and microbial PLFAs did not differ significantly between primary and secondary forests. Different compositions of the tree species may cause variations in soil microbial communities and enzyme activities. Our results showed that the main controls on soil microbes and functions vary in different climatic zones and that the effects of soil moisture content, soil temperature, clay content, and the soil N ∕ P ratio were considerable. This information will add value to the modeling of microbial processes and will contribute to carbon cycling in large-scale carbon models.

Relationships between hydrogen bonds and halogen bonds in biological systems

2017 ◽  
Vol 73 (2) ◽  
pp. 255-264 ◽  
Author(s):  
Rhianon K. Rowe ◽  
P. Shing Ho
Keyword(s):  
Biological Systems ◽  
Halogen Bonding ◽  
Structure And Function ◽  
Rational Drug Design ◽  
Biological Molecules ◽  
Halogen Bonds ◽  
Rational Drug ◽  
Complex Relationships ◽  
And Function ◽  
The Relationship

The recent recognition that halogen bonding (XB) plays important roles in the recognition and assembly of biological molecules has led to new approaches in medicinal chemistry and biomolecular engineering. When designing XBs into strategies for rational drug design or into a biomolecule to affect its structure and function, we must consider the relationship between this interaction and the more ubiquitous hydrogen bond (HB). In this review, we explore these relationships by asking whether and how XBs can replace, compete against or behave independently of HBs in various biological systems. The complex relationships between the two interactions inform us of the challenges we face in fully utilizing XBs to control the affinity and recognition of inhibitors against their therapeutic targets, and to control the structure and function of proteins, nucleic acids and other biomolecular scaffolds.

The diversity and function of soil microbial communities exposed to different disturbances

2002 ◽  
Vol 44 (1) ◽  
pp. 49-58 ◽  
Author(s):  
A. K. Müller ◽  
K. Westergaard ◽  
S. Christensen ◽  
S. J. Sørensen
Keyword(s):  
Microbial Communities ◽  
Soil Microbial Communities ◽  
Soil Microbial ◽  
And Function
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