Managing Soil Fertility Through Microbes: Prospects, Challenges and Future Strategies

Bharti, Vidya Shree; Dotaniya, M. L.; Shukla, Satya Prakash; Yadav, Vikas

doi:10.1007/978-3-319-49724-2_5

Cited by 29 publications

(13 citation statements)

References 39 publications

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“…Gaston & Blackburn (2008)), it is still in its infancy in microbial ecology, and we know relatively little about the size and position of microbial niches along environmental gradients. Yet, microorganisms represent a large proportion of the global soil biodiversity and play essential roles in biogeochemical cycling, including carbon sequestration and soil fertility (Falkowski et al, 2008, Yuan et al, 2012, Bharti et al, 2017, Crowther et al, 2019 and therefore, are essential for ecosystem functioning. Hence, understanding and quantifying the niche of microbial taxa and communities is a pressing need to help understand and forecast the in uence of environmental change on microorganisms (Mod et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Comparative analysis of diversity and environmental niches of soil bacterial, archaeal, fungal and protist communities reveal niche divergences along environmental gradients in the Alps

Malard

Mod

Guex

et al. 2021

Preprint

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Although widely used in ecology, comparative analyses of diversity and niche properties are still lacking for microorganisms, especially concerning niche variations. In this study, we identified important topoclimatic, edaphic, spatial and biotic drivers of the alpha and beta diversity of bacterial, archaeal, fungal and protist communities. Then, we calculated the niche breadth and position of each taxon along environmental gradients within all taxonomic groups, to determine how these vary within and between groups. Quantifying the niches of microbial taxa is necessary to then forecast how taxa and the communities they compose might respond to environmental changes. We found that edaphic properties were the most important drivers of both community diversity and composition for all microbial groups. Protists presented the largest niche breadths, followed by bacteria and archaea, with fungi displaying the smallest. Niche breadth generally decreased towards environmental extremes, especially along edaphic gradients, suggesting increased specialisation of microbial taxa in highly selective environments. Overall, we showed that microorganisms have well defined niches, as do macro-organisms, likely driving part of the observed spatial patterns of community variations. Assessing niche variation more widely in microbial ecology should open new perspectives, especially to tackle global change effects on microbes.

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Section: Introductionmentioning

confidence: 99%

Comparative analysis of diversity and environmental niches of soil bacterial, archaeal, fungal and protist communities reveal niche divergences along environmental gradients in the Alps

Malard

Mod

Guex

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…[22]), it is still in its infancy in microbial ecology, and we still know little about the size and position of microbial niches along environmental gradients. Yet, microorganisms represent a large proportion of the global soil biodiversity and play essential roles in biogeochemical cycling, including carbon sequestration and soil fertility [23][24][25][26] and therefore, are essential for ecosystem functioning. Hence, understanding and quantifying the niche of microbial taxa and communities is a pressing need to help understand and forecast the influence of environmental change on microorganisms [27].…”

Section: Introductionmentioning

confidence: 99%

The environmental niche of soil bacterial, archaeal, fungal and protist communities differ along edaphic and topoclimatic gradients in the Alps

Malard

Mod

Guex

et al. 2021

Preprint

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BackgroundThe niche concept describes the range of conditions supporting the establishment and persistence of species in the environment. Although widely used in ecology, it has not been often applied to microbes, for which comparative niche analyses are still lacking. Yet, quantifying the niche of microbial taxa is necessary to forecast how taxa and the communities they compose might respond to environmental changes. In this study, we identified important topoclimatic, edaphic, spatial and biotic drivers of the alpha and beta diversity of bacterial, archaeal, fungal and protist communities. Then, we established a method to calculate the niche breadth and position of each taxon along environmental gradients to determine whether microorganisms have distinct environmental niches. ResultsFor all microbial groups, edaphic properties were identified as the most important drivers of both community diversity and composition. Protists presented the largest niche breadths, followed by bacteria and archaea, with fungi displaying the smallest. Niche breadth generally decreased towards environmental extremes, especially along edaphic gradients, suggesting increased specialisation of all microbial taxa in highly selective environments. ConclusionIn this study, we showed that microorganisms have well defined niches, as do macro-organisms, and that these likely drive part of the observed spatial patterns of community variations, but with notable differences among taxonomic groups. Applying the niche concept more widely to microbial ecology should open many novel perspectives, especially to tackle global change challenges.

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“…The availability of macro and micro nutrients in the soil determines the fertility level which in turn governs the crop productivity of that soil (Bharti et al, 2017). The quality and productivity of any soil depends on the concentration of soil fertility parameters like organic C, N, P and K and their effect on physical, chemical and biological properties of soil (Cao et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Assessment of Soil Fertility of Some Villages of Lahowal Block, Dibrugarh, India

Barooah¹,

Bhattacharyya²,

Chetri³

2020

Int.J.Curr.Microbiol.App.Sci

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A study was conducted to evaluate the fertility status of soils of five different villages of Lahowal block of Dibrugarh district, Assam, India. A total of 100 numbers of surface soil samples (0-15 cm depth), comprising of 20 composite soil samples from each site, were collected. The collected soil samples were air dried, sieved and analyzed for different fertility parameters viz., soil pH, electrical conductivity, organic carbon, primary nutrients (available nitrogen, available phosphorus, available potassium), available sulphur and micronutrients (available zinc and boron) using standard analytical methods. Soil fertility rating as low, medium and high for each fertility parameter was done by calculating nutrient index value. Results revealed that pH of the all soils of study area was found in the acidic range and majority (51 %) of the samples lie in the very strongly acidic (4.5 to 5.0) range. Electrical conductivity was normal (<1.0 ds/m). Soil organic carbon was medium to high. Nutrient index value for available nitrogen and phosphorus was low to medium range. Available potassium content was low and sulphur and zinc content was found medium in all the samples but available boron was in low to medium index level.

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Managing Soil Fertility Through Microbes: Prospects, Challenges and Future Strategies

Cited by 29 publications

References 39 publications

Comparative analysis of diversity and environmental niches of soil bacterial, archaeal, fungal and protist communities reveal niche divergences along environmental gradients in the Alps

Comparative analysis of diversity and environmental niches of soil bacterial, archaeal, fungal and protist communities reveal niche divergences along environmental gradients in the Alps

The environmental niche of soil bacterial, archaeal, fungal and protist communities differ along edaphic and topoclimatic gradients in the Alps

Assessment of Soil Fertility of Some Villages of Lahowal Block, Dibrugarh, India

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