Genetic and metabolic diversities of rhizobacteria isolated from degraded soil of Ethiopia

Alemayehu, Getachew; Kiros, Solomon; Muleta, Diriba; Assefa, Fassil

doi:10.1016/j.heliyon.2020.e05697

Cited by 3 publications

(1 citation statement)

References 44 publications

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“…If a signi cative effect was found at the phylum level, another RDA was conducted with the abundance of the classes of this phylum, and so on with inferior taxonomic levels. In addition, the Proteobacteria and Firmicutes phyla were further explored as they contain plant growth promoting bacteria (Bulgarelli et al 2013;Youseif 2018;Getahun et al 2020). The same procedure was followed to evaluate the effect of fungi abundance on (poly)phenols, except with a threshold of 300 observations across all samples, as fungi were less abundant in general.…”

Section: Effect Of Soil Properties On Microbiomementioning

confidence: 99%

Unraveling the interplay of the soil microbiome and (poly)phenol content in blueberry in response to disturbances

Thomas,

Lamara,

Desjardins

et al. 2024

Preprint

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Aims Disturbances exert direct and indirect effects on plants through alterations of soil properties and microbiota composition. This can induce stress, resulting in modifications of plants’ phytochemical profile. This in turn can affect the possibility for Indigenous people to engage in cultural activities depending on wild plants used as food or medicine. As a case study, we evaluated correlations between (poly)phenols in Vaccinium angustifolium fruits, disturbances from mining and hydroelectric activities, soil properties, and soil microbiome composition. Methods We collected fruit and soil samples in the territories of three Indigenous communities in eastern Canada. Fruits were analyzed for their concentrations in anthocyanins, proanthocyanidins and other (poly)phenols. Soil microbial DNA was extracted to reconstruct bacterial and fungal communities. A secondary subset of soil samples was used to measure soil properties. Relationships between soil, disturbances and (poly)phenols were investigated using multivariate analyses. Results Disturbances affected soil properties and microbiome, but not fruit (poly)phenol content. Two soil bacterial classes unaffected by disturbances, Bacilli and Desulfitobacteriia, were positively correlated with levels of proanthocyanidines and delphinidin-, cyanidin-, and petunidin-3-glucoside in fruits. Conclusion Disturbances did not affect (poly)phenol content in V. angustifolium fruits. However, mine disturbances may contaminate fruits with pollutants detrimental to human health, which should be evaluated before drawing conclusions about the effect of disturbances on plant nutritional and medicinal properties. Some soil bacterial classes seem to enhance the (poly)phenolic content of V. angustifolium fruits, suggesting that a strategy could be developed for enhancing the nutritional and medicinal properties of this culturally salient species.

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Section: Effect Of Soil Properties On Microbiomementioning

confidence: 99%

Unraveling the interplay of the soil microbiome and (poly)phenol content in blueberry in response to disturbances

Thomas,

Lamara,

Desjardins

et al. 2024

Preprint

View full text Add to dashboard Cite

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Genotyping-driven diversity assessment of biocontrol potent Bacillus spp. strain collection as a potential method for the development of strain-specific biomarkers

et al. 2023

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The Effect of Bacterial Inoculation and Organic Amendments for the Establishment of Some Multipurpose Trees on Degraded Land

Getahun,

Muleta,

Kiros

et al. 2024

Preprint

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Rehabilitating poor soil can be achieved in part by planting trees. In the field, bio-augmentation and organic amendments (OAs) promote plant establishment and growth. Hence, this study was initiated to assess the role of organic amendments and bacterial inoculations (BI) on tree establishment on degraded soil under field conditions. Six plots measuring 41 m x 4 m were established on which the soil was amended with organic matter and bacterial inoculation (BI) of the transplanted plants quarterly, which were followed by monthly bacterial counts and measurements of plant growth parameters and the survival rate of the plants for one year. Plots receiving OAs showed the highest counts of bacteria (21.66), actinomycetes (2.29), and fungi (0.82) x 105 colony-forming unit g− 1 soil. Also, there were significant (p ≤ 0.05) increases in stem height (1, 0.42, and 0.39 m/plant), girths (12.0, 2.28, and 11.33 cm/plant), and branch numbers (5, 4, and 4.3/plant) on transplanted apple, acacia, and prunus respectively, compared to the control. The highest survival rate was observed on an apple tree (Malus domestica) (80%) and acacia (Acacia abyssinica) (66%). The result concluded that using OAs and BIs enhanced the growth and establishment of trees for the successful rehabilitation of degraded land.

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Genetic and metabolic diversities of rhizobacteria isolated from degraded soil of Ethiopia

Cited by 3 publications

References 44 publications

Unraveling the interplay of the soil microbiome and (poly)phenol content in blueberry in response to disturbances

Unraveling the interplay of the soil microbiome and (poly)phenol content in blueberry in response to disturbances

Genotyping-driven diversity assessment of biocontrol potent Bacillus spp. strain collection as a potential method for the development of strain-specific biomarkers

The Effect of Bacterial Inoculation and Organic Amendments for the Establishment of Some Multipurpose Trees on Degraded Land

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