Microbial Observatory (ISS-MO): Molecular characterization of Bacillus issensis sp. nov. isolated from various quarters of the International Space Station

Metadata Updated: November 12, 2020

As part of an ongoing effort to catalogue microbial communities inhabiting the International Space Station (ISS) crew-associated environmental samples were collected from the Japanese Kibo Russian and US research modules. Initial analysis based on 16S rRNA gene sequencing identified 11 Bacillus isolates (two from Kibo Japanese Experiment Module (JEM) four from US Segment Harmony Node 2 and five from Russian Segment Zvezda module sites) all belonging to the Bacillus anthracis-B. cereus-B. thuringiensis group. Isolates were further characterized by whole genome comparative analysis. Each isolate was sequenced assembled and aligned against all members of the B. cereus sensu lato group. Based on genome size estimates (5.2 - 5.3 Mbp) strain nucleotide identity (>99.99%) and maximum likelihood phylogenetic placement all isolates were found to exhibit a very high level of similarity. With respect to gene content all isolates were inspected for cry proteins common to B. thuringiensis as well as toxins specific to B. cereus. No significant hits were found to any known cry genes while full-length matches were found for multiple B. cereus toxin genes. Finally the isolates were closely screened against B. anthracis genomes and no B. anthracis signatures were identified. Notably all isolates contained the plcR ancestral C allele and lacked significant hits to pXO1 and pXO2 plasmids and toxins. The collective results from the analysis confirm that these strains belong to a previously uncharacterized Bacillus species hereafter referred to as Bacillus issensis. The type strain is ISSFR-003T (=NRRL B-65389T= DSMZ 101676T).

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Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Data Update Frequency irregular

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Publisher National Aeronautics and Space Administration
Unique Identifier Unknown
Maintainer
Identifier nasa_genelab_GLDS-64
Data First Published 2018-09-05
Data Last Modified 2020-01-29
Category Earth Science
Public Access Level public
Data Update Frequency irregular
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Homepage URL https://data.nasa.gov/d/6t7v-7nwx
Program Code 026:005
Source Datajson Identifier True
Source Hash 4c38497c637c1d9004be16c8871a98f98984ad69
Source Schema Version 1.1

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