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Fictibacillus tiangongensis sp. nov., isolated from the China Space Station.

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Τίτλος: Fictibacillus tiangongensis sp. nov., isolated from the China Space Station.
Συγγραφείς: Yuan J; Shenzhou Space Biotechnology Group, Beijing, 100086, PR China., Liu M; Beijing Institute of Spacecraft System Engineering, Beijing, 100094, PR China., He Z; Shenzhou Space Biotechnology Group, Beijing, 100086, PR China., Li H; Beijing Institute of Spacecraft System Engineering, Beijing, 100094, PR China., Ma L; Shenzhou Space Biotechnology Group, Beijing, 100086, PR China., Zhang Q; Shenzhou Space Biotechnology Group, Beijing, 100086, PR China., Yin Z; Beijing Institute of Spacecraft System Engineering, Beijing, 100094, PR China., Guo P; Beijing Institute of Spacecraft System Engineering, Beijing, 100094, PR China., Yin H; Shenzhou Space Biotechnology Group, Beijing, 100086, PR China.
Πηγή: International journal of systematic and evolutionary microbiology [Int J Syst Evol Microbiol] 2026 Jun; Vol. 76 (6).
Τύπος έκδοσης: Journal Article
Γλώσσα: English
Στοιχεία περιοδικού: Publisher: Microbiology Society Country of Publication: England NLM ID: 100899600 Publication Model: Print Cited Medium: Internet ISSN: 1466-5034 (Electronic) Linking ISSN: 14665026 NLM ISO Abbreviation: Int J Syst Evol Microbiol Subsets: MEDLINE
Imprint Name(s): Publication: 2015- : London : Microbiology Society
Original Publication: Reading, UK : Society for General Microbiology, c2000-
Ιατρικοί όροι (MeSH): Bacillaceae*/classification , Bacillaceae*/isolation & purification , Bacillaceae*/genetics , Phylogeny* , Spacecraft*, RNA, Ribosomal, 16S/genetics ; Fatty Acids/chemistry ; DNA, Bacterial/genetics ; Peptidoglycan/chemistry ; Vitamin K 2/analogs & derivatives ; Vitamin K 2/chemistry ; Vitamin K 2/analysis ; China ; Bacterial Typing Techniques ; Sequence Analysis, DNA ; Base Composition ; Nucleic Acid Hybridization ; Extreme Environments
Περίληψη: The identification of novel microbial species in extreme environments significantly enhances our comprehension of Earth's biodiversity and concurrently offers invaluable resources and critical insights for scientific research, biotechnological innovation and environmental conservation. As part of the China Space Station Habitation Area Microbiome Program (CHAMP), a Gram-positive, facultatively anaerobic, motile, spore-forming, rod-shaped strain, designated JL2B1089T, was isolated from the surface of hardware within the genus Fictibacillus. The strain grows optimally at 30-37 °C and pH 7-8 with 0-2.0% (w/v) NaCl. Phylogenetic analyses based on the genomic data revealed that JL2B1089T is closely related to Fictibacillus phosphorivorans Ca7T, with average nucleotide identity and digital DNA-DNA hybridization values of 90.0 and 40.6%, respectively; both values are below the recommended thresholds for species delineation. Chemotaxonomic characteristics, including the major cellular fatty acids iso-C15:0 and anteiso-C15:0, the predominant menaquinone-7 and a cell-wall peptidoglycan containing meso-diaminopimelic acid, are consistent with those of the closely related taxa F. phosphorivorans Ca7T and Fictibacillus halophilus AS8T. Additionally, strain JL2B1089T shows specificity in utilizing certain substrates, such as amino acids and carboxylic acids. Pan-genome analysis and divergence analysis of the bacillithiol biosynthesis deacetylase (BshB1) protein suggest that this strain may adapt to the space environment through mechanisms involved in coping with cell morphological alterations, osmotic fluctuations and oxidative damage under microgravity conditions. Based on phenotypic, chemotaxonomic and genomic characteristics, strain JL2B1089T represents a novel species within the genus Fictibacillus, for which the name Fictibacillus tiangongensis sp. nov. is proposed. The type strain is JL2B1089T (=GDMCC 1.4870T=KCTC 43746T).
Contributed Indexing: Keywords: China Space Station; China Space Station Habitation Area Microbiome Program (CHAMP); Fictibacillus; biotechnology applications; novel species
Substance Nomenclature: 0 (RNA, Ribosomal, 16S)
0 (Fatty Acids)
0 (DNA, Bacterial)
0 (Peptidoglycan)
11032-49-8 (Vitamin K 2)
8427BML8NY (menaquinone 7)
Entry Date(s): Date Created: 20260625 Date Completed: 20260625 Latest Revision: 20260625
Update Code: 20260625
DOI: 10.1099/ijsem.0.007216
PMID: 42345222
Βάση Δεδομένων: MEDLINE
FullText Text:
  Availability: 0
Header DbId: cmedm
DbLabel: MEDLINE
An: 42345222
AccessLevel: 3
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Fictibacillus tiangongensis sp. nov., isolated from the China Space Station.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AU" term="%22Yuan+J%22">Yuan J</searchLink>; Shenzhou Space Biotechnology Group, Beijing, 100086, PR China.<br /><searchLink fieldCode="AU" term="%22Liu+M%22">Liu M</searchLink>; Beijing Institute of Spacecraft System Engineering, Beijing, 100094, PR China.<br /><searchLink fieldCode="AU" term="%22He+Z%22">He Z</searchLink>; Shenzhou Space Biotechnology Group, Beijing, 100086, PR China.<br /><searchLink fieldCode="AU" term="%22Li+H%22">Li H</searchLink>; Beijing Institute of Spacecraft System Engineering, Beijing, 100094, PR China.<br /><searchLink fieldCode="AU" term="%22Ma+L%22">Ma L</searchLink>; Shenzhou Space Biotechnology Group, Beijing, 100086, PR China.<br /><searchLink fieldCode="AU" term="%22Zhang+Q%22">Zhang Q</searchLink>; Shenzhou Space Biotechnology Group, Beijing, 100086, PR China.<br /><searchLink fieldCode="AU" term="%22Yin+Z%22">Yin Z</searchLink>; Beijing Institute of Spacecraft System Engineering, Beijing, 100094, PR China.<br /><searchLink fieldCode="AU" term="%22Guo+P%22">Guo P</searchLink>; Beijing Institute of Spacecraft System Engineering, Beijing, 100094, PR China.<br /><searchLink fieldCode="AU" term="%22Yin+H%22">Yin H</searchLink>; Shenzhou Space Biotechnology Group, Beijing, 100086, PR China.
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  Data: <searchLink fieldCode="JN" term="%22100899600%22">International journal of systematic and evolutionary microbiology</searchLink> [Int J Syst Evol Microbiol] 2026 Jun; Vol. 76 (6).
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  Data: Journal Article
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  Data: English
– Name: TitleSource
  Label: Journal Info
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  Data: <i>Publisher: </i><searchLink fieldCode="PB" term="%22Microbiology+Society%22">Microbiology Society </searchLink><i>Country of Publication: </i>England <i>NLM ID: </i>100899600 <i>Publication Model: </i>Print <i>Cited Medium: </i>Internet <i>ISSN: </i>1466-5034 (Electronic) <i>Linking ISSN: </i><searchLink fieldCode="IS" term="%2214665026%22">14665026 </searchLink><i>NLM ISO Abbreviation: </i>Int J Syst Evol Microbiol <i>Subsets: </i>MEDLINE
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  Label: Imprint Name(s)
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  Data: <i>Publication</i>: 2015- : London : Microbiology Society<br /><i>Original Publication</i>: Reading, UK : Society for General Microbiology, c2000-
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  Label: MeSH Terms
  Group: Su
  Data: <searchLink fieldCode="MM" term="%22Bacillaceae%22">Bacillaceae*</searchLink>/<searchLink fieldCode="MM" term="%22Bacillaceae+classification%22">classification</searchLink> <br /><searchLink fieldCode="MM" term="%22Bacillaceae%22">Bacillaceae*</searchLink>/<searchLink fieldCode="MM" term="%22Bacillaceae+isolation+%26+purification%22">isolation & purification</searchLink> <br /><searchLink fieldCode="MM" term="%22Bacillaceae%22">Bacillaceae*</searchLink>/<searchLink fieldCode="MM" term="%22Bacillaceae+genetics%22">genetics</searchLink> <br /><searchLink fieldCode="MM" term="%22Phylogeny%22">Phylogeny*</searchLink> <br /><searchLink fieldCode="MM" term="%22Spacecraft%22">Spacecraft*</searchLink><br /><searchLink fieldCode="MH" term="%22RNA%2C+Ribosomal%2C+16S%22">RNA, Ribosomal, 16S</searchLink>/<searchLink fieldCode="MH" term="%22RNA%2C+Ribosomal%2C+16S+genetics%22">genetics</searchLink> ; <searchLink fieldCode="MH" term="%22Fatty+Acids%22">Fatty Acids</searchLink>/<searchLink fieldCode="MH" term="%22Fatty+Acids+chemistry%22">chemistry</searchLink> ; <searchLink fieldCode="MH" term="%22DNA%2C+Bacterial%22">DNA, Bacterial</searchLink>/<searchLink fieldCode="MH" term="%22DNA%2C+Bacterial+genetics%22">genetics</searchLink> ; <searchLink fieldCode="MH" term="%22Peptidoglycan%22">Peptidoglycan</searchLink>/<searchLink fieldCode="MH" term="%22Peptidoglycan+chemistry%22">chemistry</searchLink> ; <searchLink fieldCode="MH" term="%22Vitamin+K+2%22">Vitamin K 2</searchLink>/<searchLink fieldCode="MH" term="%22Vitamin+K+2+analogs+%26+derivatives%22">analogs & derivatives</searchLink> ; <searchLink fieldCode="MH" term="%22Vitamin+K+2%22">Vitamin K 2</searchLink>/<searchLink fieldCode="MH" term="%22Vitamin+K+2+chemistry%22">chemistry</searchLink> ; <searchLink fieldCode="MH" term="%22Vitamin+K+2%22">Vitamin K 2</searchLink>/<searchLink fieldCode="MH" term="%22Vitamin+K+2+analysis%22">analysis</searchLink> ; <searchLink fieldCode="MH" term="%22China%22">China</searchLink> ; <searchLink fieldCode="MH" term="%22Bacterial+Typing+Techniques%22">Bacterial Typing Techniques</searchLink> ; <searchLink fieldCode="MH" term="%22Sequence+Analysis%2C+DNA%22">Sequence Analysis, DNA</searchLink> ; <searchLink fieldCode="MH" term="%22Base+Composition%22">Base Composition</searchLink> ; <searchLink fieldCode="MH" term="%22Nucleic+Acid+Hybridization%22">Nucleic Acid Hybridization</searchLink> ; <searchLink fieldCode="MH" term="%22Extreme+Environments%22">Extreme Environments</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The identification of novel microbial species in extreme environments significantly enhances our comprehension of Earth's biodiversity and concurrently offers invaluable resources and critical insights for scientific research, biotechnological innovation and environmental conservation. As part of the China Space Station Habitation Area Microbiome Program (CHAMP), a Gram-positive, facultatively anaerobic, motile, spore-forming, rod-shaped strain, designated JL2B1089<superscript>T</superscript>, was isolated from the surface of hardware within the genus Fictibacillus. The strain grows optimally at 30-37 °C and pH 7-8 with 0-2.0% (w/v) NaCl. Phylogenetic analyses based on the genomic data revealed that JL2B1089<superscript>T</superscript> is closely related to Fictibacillus phosphorivorans Ca7<superscript>T</superscript>, with average nucleotide identity and digital DNA-DNA hybridization values of 90.0 and 40.6%, respectively; both values are below the recommended thresholds for species delineation. Chemotaxonomic characteristics, including the major cellular fatty acids iso-C<subscript>15:0</subscript> and anteiso-C<subscript>15:0</subscript>, the predominant menaquinone-7 and a cell-wall peptidoglycan containing meso-diaminopimelic acid, are consistent with those of the closely related taxa F. phosphorivorans Ca7<superscript>T</superscript> and Fictibacillus halophilus AS8<superscript>T</superscript>. Additionally, strain JL2B1089<superscript>T</superscript> shows specificity in utilizing certain substrates, such as amino acids and carboxylic acids. Pan-genome analysis and divergence analysis of the bacillithiol biosynthesis deacetylase (BshB1) protein suggest that this strain may adapt to the space environment through mechanisms involved in coping with cell morphological alterations, osmotic fluctuations and oxidative damage under microgravity conditions. Based on phenotypic, chemotaxonomic and genomic characteristics, strain JL2B1089<superscript>T</superscript> represents a novel species within the genus Fictibacillus, for which the name Fictibacillus tiangongensis sp. nov. is proposed. The type strain is JL2B1089<superscript>T</superscript> (=GDMCC 1.4870<superscript>T</superscript>=KCTC 43746<superscript>T</superscript>).
– Name: SubjectMinor
  Label: Contributed Indexing
  Group:
  Data: <i>Keywords: </i>China Space Station; China Space Station Habitation Area Microbiome Program (CHAMP); Fictibacillus; biotechnology applications; novel species
– Name: NumberCAS
  Label: Substance Nomenclature
  Group: ID
  Data: 0 (RNA, Ribosomal, 16S)<br />0 (Fatty Acids)<br />0 (DNA, Bacterial)<br />0 (Peptidoglycan)<br />11032-49-8 (Vitamin K 2)<br />8427BML8NY (menaquinone 7)
– Name: DateEntry
  Label: Entry Date(s)
  Group: Date
  Data: <i>Date Created: </i>20260625 <i>Date Completed: </i>20260625 <i>Latest Revision: </i>20260625
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  Label: Update Code
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  Data: 20260625
– Name: DOI
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  Data: 10.1099/ijsem.0.007216
– Name: AN
  Label: PMID
  Group: ID
  Data: 42345222
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=cmedm&AN=42345222
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        Value: 10.1099/ijsem.0.007216
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        Text: English
    Subjects:
      – SubjectFull: RNA, Ribosomal, 16S genetics
        Type: general
      – SubjectFull: Fatty Acids chemistry
        Type: general
      – SubjectFull: DNA, Bacterial genetics
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      – SubjectFull: Vitamin K 2 analogs & derivatives
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      – SubjectFull: Vitamin K 2 chemistry
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      – SubjectFull: Sequence Analysis, DNA
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      – SubjectFull: Nucleic Acid Hybridization
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      – TitleFull: Fictibacillus tiangongensis sp. nov., isolated from the China Space Station.
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              Text: 2026 Jun
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