Ectoine production in bioreactor by Halomonas elongata<scp>DSM2581</scp>: Using <scp>MWCNT</scp> and <scp>Fe‐nanoparticle</scp>

Fatollahi, None Parvaneh; Ghasemi, Mina; Yazdian, Fatemeh; Sadeghi, Akram

doi:10.1002/btpr.3073

Cited by 13 publications

(6 citation statements)

References 45 publications

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“…HPLC and MS analyses revealed that the concentration of ectoine in TK1-1 mucus was 64‍ ‍mM (9.1‍ ‍g L –1 ). TK1-1 appeared to more efficiently produce ectoine without optimization than H. elongata DSM2581 ( Fatollahi et al , 2021 ).…”

Section: Resultsmentioning

confidence: 98%

Identification of New Halomonas Strains from Food-related Environments

et al. 2022

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Halomonas species, which are aerobic, alkaliphilic, and moderately halophilic bacteria, produce diverse biochemicals. To identify food-related Halomonas strains for bioremediation and the industrial production of biochemicals, 20 strains were isolated from edible seashells, shrimp, and umeboshi (pickled Japanese plum) factory effluents. All isolates were phylogenetically classified into a large clade of Halomonas species. Most isolates, which grew in wide pH (6-13) and salt concentration (0-14%) ranges, exhibited the intracellular accumulation of poly(3-hydroxybutyrate) granules. The characteristics of these isolates varied. A020 isolated from umeboshi factory effluents exhibited enhanced stress tolerance and proliferation and comprised two plasmids. IMZ03 and A020 grew to more than 200 OD 600 , while IMZ03 produced 3.5% 3-hydroxybutyrate in inorganic medium supplemented with 10% sucrose. The mucus of TK1-1 cultured on agar medium comprised approximately 64 mM of ectoine. Whole-genome sequencing of A020 was performed to elucidate its origin and genomic characteristics. The genome analysis revealed a region exhibiting synteny with a large virus genome isolated from the ocean, but did not identify any predictable pathogenic genes. Therefore, saline foods and related materials may be suitable resources for isolating Halomonas strains exhibiting unique, useful, and innocuous features.

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Section: Resultsmentioning

confidence: 98%

Identification of New Halomonas Strains from Food-related Environments

et al. 2022

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“…In contrast, the lack of precipitation in spring and winter and intertidal recharge introduced salinity and some heat exchange to the surface soil in order to assist Marinobacter growth, while less animal activity reduced organic matter contents and diversity in the surface soil of the restoration area, resulting in an increase in the relative abundance of Marinobacter . Similarly, to Marinobacter, the relative abundance of Halomonas was higher in the spring, especially in high-salt environments, unlike the relative abundance of Halomonas , which was lower in the winter [ 21 , 22 ]. As Gram-negative aerobic microorganisms, they exhibit higher salt acclimatization: 0.1–32.5% ( w / v ).…”

Section: Discussionmentioning

confidence: 99%

Effect of Intertidal Vegetation (Suaeda salsa) Restoration on Microbial Diversity in the Offshore Areas of the Yellow River Delta

Wang,

Liu

2024

Plants

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The coastal wetlands in the Yellow River Delta play a vital role in the ecological function of the area. However, the impact of primary restoration on microbial communities is not yet fully understood. Hence, this study aimed to analyze the bacterial and archaeal communities in the soil. The results indicated that Marinobacter and Halomonas were predominant in the bacterial community during spring and winter. On the other hand, Muribaculaceae and Helicobacter were prevalent during the core remediation of soil, while Inhella and Halanaerobium were predominant in non-vegetation-covered high-salinity soil. The bacterial Shannon index showed significant differences in vegetation-covered areas. For archaea, Salinigranum, Halorubrum, and Halogranum were dominant in vegetation areas, while Halolamina, Halogranum, and Halorubrum were prevalent in non-vegetation areas. The colonization of Suaeda salsa led to differences in the composition of bacteria (22.6%) and archaea (29.5%), and salt was one of the significant reasons for this difference. The microflora was more diverse, and the elements circulated after vegetation grounding, while the microbial composition in non-vegetation areas was similar, but there was potential competition. Therefore, vegetation restoration can effectively restore soil ecological function, while the microorganisms in the soil before restoration provide germplasm resources for pollutant degradation and antimicrobial development.

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“…Ectoine is an amino acid derivative produced by bacteria living in extreme environmental conditions (high salt, high temperature, high UV radiation). As an osmoregulatory compatible solute, ectoine can increase the hydration of cell surface and stabilize the lipid layer to protect halophile cells from damage [39]. Food waste is usually characterized by high salt content.…”

Section: Genome Featuresmentioning

confidence: 99%

Alcanivorax quisquiliarum sp. nov., isolated from anaerobic fermentation liquid of food waste by high-throughput cultivation

Shen

Liang

et al. 2023

International Journal of Systematic and Evolutionary Microbiology

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Strain CY1518T was isolated from an anaerobic fermentation liquid of food waste treatment plant in Beijing, PR China, and characterized to assess its taxonomy. Cells of CY1518T were Gram-stain-negative, oxidase-negative, catalase-positive and ellipsoidal. Growth occurred at 20–42 °C (optimum, 37 °C), pH 6.0–10.0 (optimum, pH 8) and with 0–6.0 % (w/v) NaCl (optimum, 1.5%). Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain CY1518T belongs to the genus Alcanivorax , with the highest sequence similarity to Alcanivorax pacificus W11-5T (95.97 %), followed by Alcanivorax indicus SW127T (95.08%). The similarity between strain CY1518T and other strains of Alcanivorax was less than 95 %. The genomic DNA G+C content of strain CY1518T was 60.88 mol%. The average nucleotide identity, average amino acid identity and digital DNA–DNA hybridization values between strain CY1518T and the closely related taxa A. pacificus W11-5T and A. indicus SW127T were 77.61, 78.03 and 21.2 % and 74.15, 70.02 and 19.3%, respectively. The strain was able to use d-serine, Tween 40 and some organic acid compounds for growth. The polar lipids comprised aminophospholipid, diphosphatidylglycerol, glycolipid, an unknown polar lipid, phosphatidylethanolamine, phosphatidylglycerol and phospholipid. The principal fatty acids (>5 %) were C19 : 0 cyclo ω8c (36.3%), C16 : 0 (32.3%), C12 : 0 3-OH (8.3%) and C12 : 0 (7.6%). Based on its phenotypic, genotypic and genomic characteristics, strain CY1518T represents a novel species in the genus Alcanivorax , for which the name Alcanivorax quisquiliarum sp. nov. is proposed. The type strain is CY1518T (=GDMCC 1.2918T=JCM 35120T).

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Ectoine production in bioreactor by Halomonas elongataDSM2581: Using MWCNT and Fe‐nanoparticle

Cited by 13 publications

References 45 publications

Identification of New <i>Halomonas</i> Strains from Food-related Environments

Identification of New <i>Halomonas</i> Strains from Food-related Environments

Effect of Intertidal Vegetation (Suaeda salsa) Restoration on Microbial Diversity in the Offshore Areas of the Yellow River Delta

Alcanivorax quisquiliarum sp. nov., isolated from anaerobic fermentation liquid of food waste by high-throughput cultivation

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