Culturomics revealed the bacterial constituents of the microbiota of a 10-year-old laboratory culture of planarian species S. mediterranea.

The planarian species Schmidtea mediterranea is a flatworm living in freshwater that is used in the research laboratory as a model to study developmental and regeneration mechanisms, as well as antibacterial mechanisms. However, the cultivable microbial repertoire of the microbes comprising its microbiota remains unknown. Here, we characterized the bacterial constituents of a 10-year-old laboratory culture of planarian species S.

Chryseobacterium schmidteae sp. nov. a novel bacterial species isolated from planarian Schmidtea mediterranea.

Marseille-P9602 is a Chryseobacterium-like strain that we isolated from planarian Schmidtea mediterranea and characterized by taxono-genomic approach. We found that Marseille-P9602 strain exhibits a 16S rRNA gene sequence similarity of 98.76% with Chryseobacterium scophthalmum LMG 13028 strain, the closest phylogenetic neighbor.

The Act of Controlling Adult Stem Cell Dynamics: Insights from Animal Models.

Adult stem cells (ASCs) are the undifferentiated cells that possess self-renewal and differentiation abilities. They are present in all major organ systems of the body and are uniquely reserved there during development for tissue maintenance during homeostasis, injury, and infection. They do so by promptly modulating the dynamics of proliferation, differentiation, survival, and migration.

Planarians (Platyhelminthes)-An Emerging Model Organism for Investigating Innate Immune Mechanisms.

An organism responds to the invading pathogens such as bacteria, viruses, protozoans, and fungi by engaging innate and adaptive immune system, which functions by activating various signal transduction pathways. As invertebrate organisms (such as sponges, worms, cnidarians, molluscs, crustaceans, insects, and echinoderms) are devoid of an adaptive immune system, and their defense mechanisms solely rely on innate immune system components. Investigating the immune response in such organisms helps to elucidate the immune mechanisms that vertebrates have inherited or evolved from invertebrates.

Draft Genome Sequence of Herminiimonas contaminans Strain CCM 7991, a Biopharmaceutical Contaminant.

was described as a new bacterial species, a contaminant isolated from a biopharmaceutical production process in Sweden. Since the genome sequence was not available, we performed draft genome sequencing. The genome of strain CCM 7991 (=CCUG 53591 = DSM 28178 = Marseille-Q4544) was 4,038,814 bp long, with a G+C content of 53.

Draft Genome Sequence of Comamonas jiangduensis Strain YW1.

Here, we report the draft genome sequence of strain YW1 (= DSM 100319 = CSUR Q1714 = CCTCC AB 2012033  =  KACC 16697). is a new species that was isolated from agricultural soil. The genome sequence from strain YW1 has been assembled into 322 contigs for a total size of 2,758,586 bp with a G+C content of 59.

Draft Genome Sequence of Vogesella oryzae L3B39, Isolated from the Rhizosphere of Saline-Tolerant Pokkali Rice.

Here, we report the draft genome sequence of L3B39 (CSUR Q2602 = DSM 28780), which is a species isolated from the rhizosphere of saline-tolerant pokkali rice. The genome sequence was assembled into 58 contigs for a total size of 3,415,129 bp, with a G+C content of 62.3%.

Draft Genome Sequence of Comamonas aquatilis Strain LK (= CSUR P6418 = CECT 9772), Isolated from the Planarian Schmidtea mediterranea.

was defined as a new species based on its 16S rRNA sequence, but the genome from the type strain SB30-Cr27-3 (= CIP 111491 = CCM 8815) is not available. We have cultivated from the planarian a strain, LK (= CSUR P6418 = CECT 9772), that exhibits 100% 16S rRNA sequence similarity to strain SB30-Cr27-3 We have sequenced the genome of strain LK and obtained a chromosome of 4,899,818 bp, with a G+C content of 61.75%, assembled into two contigs.

Pedobacter schmidteae sp. nov., a new bacterium isolated from the microbiota of the planarian Schmidtea mediterranea.

Pedobacter schmidteae sp. nov. strain EG (Collection de Souches de l'Unité des Rickettsie CSUR P6417 = Colección Española de Cultivos Tipo CECT 9771) is a new Pedobacter species isolated from the planarian Schmidtea mediterranea.