Functional response of sediment bacterial community to iron-reducing bioaugmentation with Shewanella decolorationis S12

Pan, Yuanyuan; Yang, Xunan; Sun, Guoping; Xu, Meiying

doi:10.1007/s00253-019-09816-w

Cited by 8 publications

(2 citation statements)

References 36 publications

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“…Bio‐organic fertilizers inoculated with iron‐reducing bacteria and other beneficial microorganisms can increase agronomic P‐use efficiency and partial factor productivity of P and use Fe as a substrate to promote the release of Fe‐bound P from acidic soils (Naher et al., 2021; Pan et al., 2019). Moreover, a large number of arbuscular mycorrhizal fungi (AMF), P‐solubilizing bacteria and other functional microorganisms can influence the speciation of soil P compounds and improve P availability and efficacy, and they can be used to prepare bio‐organic fertilizers (Etesami et al., 2021; Jayakumar et al., 2017).…”

Section: Introductionmentioning

confidence: 99%

Enhancing phosphorus bioavailability in lateritic red soil: Combining Bacillus subtilis inoculated microbial organic fertilizer with reduced chemical input

Duan,

Li,

et al. 2023

Soil Use and Management

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Optimal phosphorus (P) levels in lateritic soils are key for sustainable crop production. However, the effect of various fertilizers on soil phosphorus pools, crop phosphorus uptake, and crop yields remains unclear. This study investigated the effect of different fertilization strategies on plant growth and soil P fractions, and determined the contribution of biotic and abiotic factors to insoluble P release. We found that resin‐P, NaHCO3‐P, and NaOH‐P represented the primary active P pools in the lateritic soil, contributing 59.8% of the total P in conventional fertilization (CF), with Fe/Al‐bound P (NaOH‐P) being 42.1% of the active P pool. Combining Nangbowang (NBW), a microbial organic fertilizer inoculated with Bacillus subtilis (≥ 2×107 million CFU g‐1), with reduced chemical fertilizer (NBW+CR) increased soil P availability and promoted the release of Fe/Al‐bound P and residual‐P, decreasing the Fe/Al‐bound P to 21.7%. Soil biological factors mainly influenced the P transformation process. With the consumption of soil active P, NBW bio‐organic fertilizer enhanced the niche filtration of P solubilizing bacterial communities (Gemmatimonadetes, Sphingomonas, and Halomonas), altered the soil functional microbial community structure, and promoted P form conversion. The NBW + CR treatment also enhanced nitrogen and P nutrient uptake by pepper plants (Capsicum annuum), with increased total P concentrations in pepper fruit and stem, and improved crop yield. NBW increased active P concentrations in the soil and promoted Fe/Al‐P release and transformation by impacting autochthonous microbes involved in the conversion of P chemical species. These results can guide the improvement of P availability and release in lateritic red soils using bio‐organic fertilizer.

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Section: Introductionmentioning

confidence: 99%

Enhancing phosphorus bioavailability in lateritic red soil: Combining Bacillus subtilis inoculated microbial organic fertilizer with reduced chemical input

Duan,

Li,

et al. 2023

Soil Use and Management

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“…The appearance of dissimilatory iron reduction bacteria (DIRB) can transform structured Fe(III) into Fe(II) and improve the utilization rate of iron minerals (Kappler et al 2021). Knowledge of microbial-mediated Fe(III) reduction process is growing over the past few decades, and is mostly a process of reducing Fe(III) to Fe(II) coupled with organic compounds oxidation under anoxic conditions, driven by DIRB (Pan et al 2019). During dissimilatory iron reduction, DIRB solubilise Fe(III) oxides as Fe(II), known as biogenic Fe(II) (Roden & Urrutia 2002).…”

Section: Introductionmentioning

confidence: 99%

Nitrate removal during Fe(III) bio-reduction in microbial-mediated iron redox cycling systems

Liu

Huang

et al. 2021

Water Science and Technology

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Fe(III) bio-reduction provides a prospect of applying the iron redox cycle to nitrate remediation in the aquatic environment. The objective of this study was to realize multiple nitrate removals in the system containing Shewanella oneidensis MR-1 (S. oneidensis MR-1) and ferrihydrite or magnetite. The results showed that with three periods of 30 mg·L−1 NO3−-N addition, all nitrate reduction was completed within 170 h. In the first period (0–30 h) of nitrate addition, the main contribution of nitrate removal was due to the biological reduction process by S. oneidensis MR-1, accompanied by the reduction of Fe(III). During the second (45–90 h) and third periods (100–170 h) of nitrate addition, oxidation of biogenic Fe(II) coupled with the reduction of nitrate took place. This redox reaction resulted in the production of gaseous nitrogen of 47.33% and 16.8% for ferrihydrite/S. oneidensis MR-1 and magnetite/S. oneidensis MR-1 systems, respectively. In addition, nitrite, as an intermediate product, accumulated and negatively affected nitrate removal after the third addition of nitrate. By comparing the patterns of X-ray diffraction of the iron minerals before and after the bio-reduction, it was found that ferrihydrite was transformed into magnetite, while magnetite kept its original crystal form.

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Geochip 5.0 insights into the association between bioleaching of heavy metals from contaminated sediment and functional genes expressed in consortiums

Yang,

Lu,

Chen

et al. 2024

Environ Sci Pollut Res

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Functional response of sediment bacterial community to iron-reducing bioaugmentation with Shewanella decolorationis S12

Cited by 8 publications

References 36 publications

Enhancing phosphorus bioavailability in lateritic red soil: Combining Bacillus subtilis inoculated microbial organic fertilizer with reduced chemical input

Enhancing phosphorus bioavailability in lateritic red soil: Combining Bacillus subtilis inoculated microbial organic fertilizer with reduced chemical input

Nitrate removal during Fe(III) bio-reduction in microbial-mediated iron redox cycling systems

Geochip 5.0 insights into the association between bioleaching of heavy metals from contaminated sediment and functional genes expressed in consortiums

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