Pontibacter pudoricolor sp. nov., and Pontibacter russatus sp. nov. radiation-resistant bacteria isolated from soil

Maeng, Soohyun; Park, Jinah; Lee, Sang Eun; Han, Joo Hyun; Cha, In-Tae; Lee, Ki-eun; Lee, Byoung-Hee; Kim, Myung Kyum

doi:10.1007/s10482-020-01446-x

Cited by 7 publications

(7 citation statements)

References 30 publications

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“…The relative abundance of only five bacterial species had an effect size that could be considered very large when comparing bacterial communities in the conventional tilled beds with those in permanent tilled beds. The relative abundance of Enterobacter hormaechei with P and K solubilizing capacities ( 18 ) and Pontibacter pudoricolor ( 19 ) was larger in the rhizosphere of maize plants cultivated on CB than in PB, while that of the Actinobacteria Conexibacter woesei ( 20 ) and Mycolicibacterium tokaiense ( 21 ) was larger in roots when the maize plants were cultivated on PB than on CB. The relative abundance of Rhodococcus sp.…”

Section: Discussionmentioning

confidence: 99%

Nitrogen Fertilizer Application Alters the Root Endophyte Bacterial Microbiome in Maize Plants, but Not in the Stem or Rhizosphere Soil

et al. 2022

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Section: Discussionmentioning

confidence: 99%

Nitrogen Fertilizer Application Alters the Root Endophyte Bacterial Microbiome in Maize Plants, but Not in the Stem or Rhizosphere Soil

et al. 2022

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“…The genera Pontibacter, Hymenobacter and Adhaeribacter are also highly radiation resistant bacteria [64] with the ability to synthesize carotenoids and indeed show pink to red shades [65,66].…”

Section: Discussionmentioning

confidence: 99%

A Multi-Analytical Approach to Infer Mineral–Microbial Interactions Applied to Petroglyph Sites in the Negev Desert of Israel

et al. 2022

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Petroglyph sites exist all over the world. They are one of the earliest forms of mankind’s expression and a precursor to art. Despite their outstanding value, comprehensive research on conservation and preservation of rock art is minimal, especially as related to biodeterioration. For this reason, the main objective of this study was to explore the factors involved in the degradation of petroglyph sites in the Negev desert of Israel, with a focus on biodegradation processes. Through the use of culture-independent microbiological methods (metagenomics), we characterized the microbiomes of the samples, finding they were dominated by bacterial communities, in particular taxa of Actinobacteria and Cyanobacteria, with resistance to radiation and desiccation. By means of XRF and Raman spectroscopies, we defined the composition of the stone (calcite and quartz) and the dark crust (clay minerals with Mn and Fe oxides), unveiling the presence of carotenoids, indicative of biological colonization. Optical microscopy and SEM–EDX analyses on thin sections highlighted patterns of weathering, possibly connected to the presence of biodeteriorative microorganisms that leach the calcareous matrix from the bedrock and mobilize metal cations from the black varnish for metabolic processes, slowly weathering it.

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“…Gliding motility was investigated as previously described by Bowman [31]. Growth at different temperatures (3,4,5,10,15,20,25,28,30,35,37,40, 42 and 45 °C) was measured by observing the formation of colonies in 0.3×MB agar plates for up to 2 weeks to estimate the temperature range and optimal temperature for growth. Salt tolerance was examined at different NaCl concentrations (0 %, 0.5 %, 1-15 % w/v, in increments of 1 %) in a basic Reasoner's 2A (R2A) broth medium, containing 0.25 g tryptone, 0.5 g acid hydrolysed casein, 0.5 g yeast extract powder, 0.5 g soluble starch, 0.3 g K 2 HPO 4 , 0.1 g MgSO 4 , 0.3 g sodium pyruvate, 0.25 g peptone, 0.5 g glucose and 1 l deionized water (pH 7.2±0.2), as well as at different NaCl concentrations (0.6 %, 1-15 % w/v, in increments of 1 %) in 0.3×MB at 28 °C.…”

Section: Physiology and Chemotaxonomymentioning

confidence: 99%

Pontibacter harenae sp. nov., isolated from the soil of a Populus euphratica forest

Osman,

Sayim,

Yang

et al. 2023

International Journal of Systematic and Evolutionary Microbiology

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A Gram-negative, rod-shaped, aerobic and light pink-pigmented bacterium, designated XAAS-A31T, was isolated from the soil of a Populus euphratica forest located near Hotan City, Xinjiang, PR China. Polyphasic, taxonomic and phylogenomic analyses were used to determine the taxonomy position of the strain. Phylogenetic analysis based on 16S rRNA gene sequence analysis indicated that XAAS-A31T belongs to the genus Pontibacter , family Hymenobacteraceae , and shows highest sequence similarity to Pontibacter silvestris XAAS-R86T (96.2 %). The digital DNA–DNA hybridization (22.0 %–19.2 %) and orthologous average nucleotide identity (74.1 %–72.7 %) values relative to closest validly published Pontibacter species were lower than the recommended thresholds of 70 and 96 %, respectively. The cells grew at 4–40 °C (optimum, 28–30 °C), at pH 6.5–8.5 (pH 7.0–7.5) and with 0–8% NaCl (0.5–2.0% NaCl). The main respiratory quinone of XAAS-A31T is MK-7, and the principal cellular fatty acids are iso-C15 : 0, iso-C17 : 0 3OH and summed feature 4 (iso-C17 : 1 I and/or anteiso-C17 : 1 B). The major polar lipids are phosphatidylethanolamine, three unidentified amino-phospholipids, one unidentified glycolipid and eight unidentified lipids. The genome length of strain XAAS-A31T is 5.48 Mbp with a DNA G+C content of 44.2 mol% and 4013 protein-coding genes. Phenotypic and genotypic data suggested that XAAS-A31T represents a novel Pontibacter species, for which we propose the name Pontibacter harenae sp. nov. and type strain XAAS-A31T (=CCTCC AB 2017162T=KCTC 62049T).

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Pontibacter pudoricolor sp. nov., and Pontibacter russatus sp. nov. radiation-resistant bacteria isolated from soil

Cited by 7 publications

References 30 publications

Nitrogen Fertilizer Application Alters the Root Endophyte Bacterial Microbiome in Maize Plants, but Not in the Stem or Rhizosphere Soil

Nitrogen Fertilizer Application Alters the Root Endophyte Bacterial Microbiome in Maize Plants, but Not in the Stem or Rhizosphere Soil

A Multi-Analytical Approach to Infer Mineral–Microbial Interactions Applied to Petroglyph Sites in the Negev Desert of Israel

Pontibacter harenae sp. nov., isolated from the soil of a Populus euphratica forest

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