Spatial variability of microbial richness and diversity and relationships with soil organic carbon, texture and structure across an agricultural field

Naveed, Muhammad; Herath, Lasantha; Møldrup, Per; Arthur, Emmanuel; Nicolaisen, Mogens; Nørgaard, Trine; Ferré, Ty P. A.; Jonge, Lis Wollesen de

doi:10.1016/j.apsoil.2016.03.004

Cited by 94 publications

(50 citation statements)

References 47 publications

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“…Consequently, our results suggest that high microbial diversity may promote soil structure, thereby increasing water perception by the plants. This hypothesis is in agreement with the recent study by Naveed et al () who demonstrated a positive correlation between soil structure, water retention, and both soil bacterial and fungal Shannon diversities. In other respects, it is reinforced by the changes observed in root system morphology (increase in root length and root number under high microbial diversity), which are commonly related to water exploitation by the plant (see Wasson et al, for review).…”

Section: Discussionsupporting

confidence: 94%

“…Positive, negative, or neutral effects of microbial diversity are highlighted by upward arrows, downward arrows, and crossed circle, respectively. Black symbols represent measured effects, whereas grey symbols represent putative effects based on the literature: (1) Maron et al (), (2) Baumann et al (), (3) Bonfante (), (4) Marschner and Dell (), (5) Helliwell et al (), (6) Naveed et al (), (7) Redmile‐Gordon et al (), (8) Guyonnet et al (), and (9) Birch () [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Discussionmentioning

confidence: 99%

“…Indeed, soil structure, by controlling porosity and connectivity, accounts for a major proportion of the soil parameters that determine water availability and soil aeration (Helliwell, Miller, Whalley, Mooney, & Sturrocka, 2014). The contribution of soil microorganisms to soil structure is well documented (Helliwell et al, 2014;Redmile-Gordon, Brookes, Evershed, Goulding, & Hirsch, 2014;Naveed et al, 2016), involving different processes such as the production of binding agents, mainly polysaccharides, by bacteria and fungi that glue particles (Redmile-Gordon et al, 2014) or physically enmesh soil particles through the development of hyphal networks (Tisdall, 1991). Carbon substrates availability is recognized as a major factor regulating the microbial mechanisms acting on soil structure (Helliwell et al, 2014), but the importance of microbial diversity is poorly documented because very few studies have tackled the microbial diversity-soil structure relationship (Crawford et al, 2011;Le Guillou, Angers, Maron, Leterme, & Menasseri-Aubry, 2012;Naveed et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

“…Black symbols represent measured effects while grey symbols represent putative effects based on the literature. (1) Maron et al, ; (2) Baumann et al, ; (5) Hellwell et al, 2014; (6) Naveed et al, ; (7) Redmile‐Gordon et al, ; (8) Guyonnet et al, ; (9) Birch, . Under well‐watered conditions (a), higher soil microbial diversity leads to a stimulation of root biomass but not through root branching.…”

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confidence: 99%

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The diversity of soil microbial communities matters when legumes face drought

Prudent

Dequiedt

Sorin

et al. 2020

Plant Cell & Environment

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The cultivation of legumes shows promise for the development of sustainable agriculture, but yield instability remains one of the main obstacles for its adoption. Here, we tested whether the yield stability (i.e., resistance and resilience) of pea plants subjected to drought could be enhanced by soil microbial diversity. We used a dilution approach to manipulate the microbial diversity, with a genotype approach to distinguish the effect of symbionts from that of microbial diversity as a whole. We investigated the physiology of plants in response to drought when grown on a soil containing high or low level of microbial diversity. Plants grown under high microbial diversity displayed higher productivity and greater resilience after drought. Yield losses were mitigated by 15% on average in the presence of high soil microbial diversity at sowing. Our study provides proof of concept that the soil microbial community as a whole plays a key role for yield stability after drought even in plant species living in relationships with microbial symbionts. These results emphasize the need to restore soil biodiversity for sustainable crop management and climate change adaptation.

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Section: Discussionsupporting

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

The diversity of soil microbial communities matters when legumes face drought

Prudent

Dequiedt

Sorin

et al. 2020

Plant Cell & Environment

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“…Higher P mic concentrations of the ALB might be explained by a combination of finer soil texture and higher annual precipitation, thus increasing soil moisture compared with the two other regions [ALB: 37.8 (± 5.5) %, HAI: 32.2 (± 4.8) %, SCH: 23.7 (± 13.2) %]. In addition to the reasoning provided in chapter 4.1, fine‐textured soils are known to harbor more microbial biomass than coarse‐textured soils ( Naveed et al, ). Additionally, the ALB (followed by HAI) was characterized by (1) higher P o and total P concentrations, and (2) higher soil pH in grassland and forest soils as compared to SCH ( Alt et al, ).…”

Section: Discussionmentioning

confidence: 99%

The role of soil chemical properties, land use and plant diversity for microbial phosphorus in forest and grassland soils

Sorkau

Boch

Boeddinghaus

et al. 2017

J. Plant Nutr. Soil Sci.

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Management intensity modifies soil properties, e.g., organic carbon (Corg) concentrations and soil pH with potential feedbacks on plant diversity. These changes might influence microbial P concentrations (Pmic) in soil representing an important component of the P cycle. Our objectives were to elucidate whether abiotic and biotic variables controlling Pmic concentrations in soil are the same for forests and grasslands, and to assess the effect of region and management on Pmic concentrations in forest and grassland soils as mediated by the controlling variables. In three regions of Germany, Schwäbische Alb, Hanich‐Dün, and Schorfheide‐Chorin, we studied forest and grassland plots (each n = 150) differing in plant diversity and land‐use intensity. In contrast to controls of microbial biomass carbon (Cmic), Pmic was strongly influenced by soil pH, which in turn affected phosphorus (P) availability and thus microbial P uptake in forest and grassland soils. Furthermore, Pmic concentrations in forest and grassland soils increased with increasing plant diversity. Using structural equation models, we could show that soil Corg is the profound driver of plant diversity effects on Pmic in grasslands. For both forest and grassland, we found regional differences in Pmic attributable to differing environmental conditions (pH, soil moisture). Forest management and tree species showed no effect on Pmic due to a lack of effects on controlling variables (e.g., Corg). We also did not find management effects in grassland soils which might be caused by either compensation of differently directed effects across sites or by legacy effects of former fertilization constraining the relevance of actual practices. We conclude that variables controlling Pmic or Cmic in soil differ in part and that regional differences in controlling variables are more important for Pmic in soil than those induced by management.

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Abiotic and biotic drivers of endosymbiont community assembly in Jatropha curcas

et al. 2019

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While the endosymbiotic communities recruited by plants are known to vary among host species and across environmental gradients, the drivers of community assembly remain poorly understood. We tested the hypothesis that establishment of an endosymbiotic bacterial community is driven primarily by the influence of the abiotic environment on biotic interactions between plant and soil bacteria. We planted sterile Jatropha curcas seedlings at three field sites in Panama and in a greenhouse with soil from those sites. After allowing sufficient time for endosymbiont colonization, we sequenced bacterial 16S rRNA to study the endophytic bacterial community in root and leaf tissue. We compared the communities between field and greenhouse plants and examined associations among the endosymbionts, the soil microbial community, and local abiotic factors. We found that endosymbiont richness and community composition varied between the greenhouse and field, despite plants being grown in the same soil. Plants in each field site harbored a distinct bacterial community, determined by soil microbes and select environmental variables, particularly major plant nutrients. Jatropha curcas can harbor a wide variety of endosymbiotic communities, and the composition of these communities is a product of the local environment. Fertility and agricultural practices may determine the fate of plant symbionts and therefore plant properties modulated through those symbionts.

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Spatial variability of microbial richness and diversity and relationships with soil organic carbon, texture and structure across an agricultural field

Cited by 94 publications

References 47 publications

The diversity of soil microbial communities matters when legumes face drought

The diversity of soil microbial communities matters when legumes face drought

The role of soil chemical properties, land use and plant diversity for microbial phosphorus in forest and grassland soils

Abiotic and biotic drivers of endosymbiont community assembly in Jatropha curcas

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