Metagenomic analyses uncover the differential effect of azide treatment on bacterial community structure by enriching a specific Cyanobacteria present in a saline-alkaline environmental sample

Aguirre-Garrido, José Félix; Martı́nez-Abarca, Francisco; Montiel-Lugo, Daniel; Hernández-Soto, Luis Mario; Ramírez-Saad, Hugo

doi:10.1007/s10123-020-00119-z

Cited by 3 publications

(2 citation statements)

References 33 publications

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“…However, it remains unclear whether exposure to petroleum hydrocarboncontaminated soils containing biochar to NaN 3 results in microbial inhibition, as no evidence has been provided in past studies. This is in part due to the fact that NaN 3 is reported to have a selective effect on bacteria [24]. However, to date, the impact of the microbial community on the efficacy of the remediation of petroleum hydrocarbon-contaminated NaN 3 -amended soil has not been reported.…”

Section: Introductionmentioning

confidence: 99%

Impact of Biosolids-Derived Biochar on the Remediation and Ecotoxicity of Diesel-Impacted Soil

Dike,

Krohn,

Khudur

et al. 2024

Soil Systems

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This study aimed to investigate the impact of biosolids-derived biochar on the remediation of Australian soil contaminated with diesel while investigating the role of biochar in the remediation. To achieve the latter aim, sodium azide (NaN3) was added to a separate biochar treatment (BN) to alter the bacterial community structure. Biochar (B) reduced detectable hydrocarbons by 2353 mg/kg compared to the control (C) treatment at week 24. However, the BN treatment reduced the hydrocarbon concentration by 3827 and 6180 mg/kg, relative to B and C, respectively. Soil toxicity significantly decreased at week 24 compared to the start of the remediation in B, but not in the control. Biochar and control treatments generally showed a similar bacterial community structure throughout the incubation, while the bacterial community structure in BN differed significantly. Biodegradation was found to play a significant role in hydrocarbon removal, as the variation in the bacteria community coincided with differences in hydrocarbon removal between B and BN. The increased removal of hydrocarbons in the BN treatment relative to B coincided with increased and reduced relative abundances of Gordonia and JG30-KF-CM45 genera, respectively. This study showed that NaN3 led to a transient and selective inhibition of bacteria. This study makes an important contribution towards understanding the use of NaN3 in examining the role of biochar in the remediation of diesel-contaminated soil. Overall, we conclude that biochar has the potential to enhance the remediation of diesel-contaminated soil and that biodegradation is the dominant mechanism.

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Section: Introductionmentioning

confidence: 99%

Impact of Biosolids-Derived Biochar on the Remediation and Ecotoxicity of Diesel-Impacted Soil

Dike,

Krohn,

Khudur

et al. 2024

Soil Systems

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“…This publicly available reference genome for Halomonas venusta provides significant support for the analysis of metagenomic data sets (8,12), and it is crucial for understanding the species' fundamental traits and facilitating further work on this species at the genomic level.…”

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confidence: 99%

Complete Genome Sequence of Halomonas venusta Type Strain DSM 4743, a Moderately Halophilic Marine Bacterium

Martı́nez-Abarca

Hernández-Soto

Ramírez-Saad

et al. 2021

Microbiol Resour Announc

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Halomonas

Ventosa

Haba

Arahal

et al. 2021

Bergey's Manual of Systematics of Archaea and Bacteria

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Ha.lo.mo'nas. Gr. masc. n. hals halos salt; L. fem. n. monas a unit, monad; N.L. fem. n. Halomonas salt (‐tolerant) monad. Proteobacteria / Gammaproteobacteria / Oceanospirillales / Halomonadaceae / Halomonas The genus Halomonas is classified within the family Halomonadaceae and the order Oceanospirillales in the class Gammaproteobacteria . The cells are Gram‐stain‐negative and non‐endospore‐forming rods. Most strains are motile. Colonies are cream, cream‐yellow, yellow, white, brown, or orange pigmented. Chemoorganotrophic. Strictly aerobic or facultatively anaerobic. Catalase‐positive and oxidase‐variable. Halophilic or halotolerant. Some species are haloalkaliphilic or psychrotolerant. Optimal growth at 0–15% (w/v) NaCl, pH 6.0–10.0, and 20–40°C. The predominant cellular fatty acids include C 16:0 , C 18:1 ω7 c , C 16:1 ω7 c , C 12:0 3‐OH, and C 19:0 cyclo ω8 c . The predominant respiratory quinone is Q‐9. Currently, the genus includes 102 species, with Halomonas elongata as type species. The strains of the species of this genus were isolated from marine, saline, or hypersaline environments and other saline habitats or salted food. DNA G + C content (mol%) : 51.4–74.3. Type species : Halomonas elongata Vreeland et al. 1980 VP .

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Metagenomic analyses uncover the differential effect of azide treatment on bacterial community structure by enriching a specific Cyanobacteria present in a saline-alkaline environmental sample

Cited by 3 publications

References 33 publications

Impact of Biosolids-Derived Biochar on the Remediation and Ecotoxicity of Diesel-Impacted Soil

Impact of Biosolids-Derived Biochar on the Remediation and Ecotoxicity of Diesel-Impacted Soil

Complete Genome Sequence of Halomonas venusta Type Strain DSM 4743, a Moderately Halophilic Marine Bacterium

Halomonas

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