Phylogenetic insights into the diversity of Chryseobacterium species

Siddaramappa, Shivakumara; Narjala, Anushree; Viswanathan, Vandana; Maliye, Chaitra; Lakshminarayanan, Raghavendran

doi:10.1099/acmi.0.000019

Cited by 7 publications

(6 citation statements)

References 81 publications

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“…Given that Blattabacterium belongs to the order Flavobacteriales, extant cultivable bacteria representing this order in cockroaches are interesting because they could be intermediate forms from which Blattabacterium evolved. Moreover, Chryseobacterium species are useful in the context of industrial biotechnology because they produce flexirubin pigments (Siddaramappa et al 2019) and hydrolytic enzymes (Brandelli and Riffel 2005;Gandhi et al 2009).…”

Section: Bacteroidetesmentioning

confidence: 99%

Bacteria associated with cockroaches: health risk or biotechnological opportunity?

Guzman

Vilcinskas

2020

Appl Microbiol Biotechnol

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Cockroaches have existed for 300 million years and more than 4600 extant species have been described. Throughout their evolution, cockroaches have been associated with bacteria, and today Blattabacterium species flourish within specialized bacteriocytes, recycling nitrogen from host waste products. Cockroaches can disseminate potentially pathogenic bacteria via feces and other deposits, particularly members of the family Enterobacteriaceae, but also Staphylococcus and Mycobacterium species, and thus, they should be cleared from sites where hygiene is essential, such as hospitals and kitchens. On the other hand, cockroaches also carry bacteria that may produce metabolites or proteins with potential industrial applications. For example, an antibiotic-producing Streptomyces strain was isolated from the gut of the American cockroach Periplaneta americana. Other cockroach-associated bacteria, including but not limited to Bacillus, Enterococcus, and Pseudomonas species, can also produce bioactive metabolites that may be suitable for development as pharmaceuticals or plant protection products. Enzymes that degrade industrially relevant substrates, or that convert biomasses into useful chemical precursors, are also expressed in cockroach-derived bacteria and could be deployed for use in the food/feed, paper, oil, or cosmetics industries. The analysis of cockroach gut microbiomes has revealed a number of lesser-studied bacteria that may form the basis of novel taxonomic groups. Bacteria associated with cockroaches can therefore be dangerous or useful, and this review explores the bacterial clades that may provide opportunities for biotechnological exploitation. Key points • Members of the Enterobacteriaceae are the most frequently cultivated bacteria from cockroaches. • Cultivation-independent studies have revealed a diverse community, led by the phyla Bacteroidetes and Firmicutes. • Although cockroaches may carry pathogenic bacteria, most strains are innocuous and may be useful for biotechnological applications.

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Section: Bacteroidetesmentioning

confidence: 99%

Bacteria associated with cockroaches: health risk or biotechnological opportunity?

Guzman

Vilcinskas

2020

Appl Microbiol Biotechnol

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“…S2 ) and are likely expressed to produce pigments to give colonies of this genus ( chryseos = golden) a yellow to orange colour. 117 …”

Section: Resultsmentioning

confidence: 99%

Genome features of a novel hydrocarbonoclastic Chryseobacterium oranimense strain and its comparison to bacterial oil-degraders and to other C. oranimense strains

Ramdass,

Rampersad

2023

DNA Research

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For the first time, we report the whole genome sequence of a hydrocarbonoclastic Chryseobacterium oranimense strain isolated from Trinidad and Tobago (COTT) and its genes involved in the biotransformation of hydrocarbons and xenobiotics through functional annotation. The assembly consisted of 11 contigs with 2,794 predicted protein-coding genes which included a diverse group of gene families involved in aliphatic and polycyclic hydrocarbon degradation. Comparative genomic analyses with 18 crude-oil degrading bacteria in addition to two C. oranimense strains not associated with oil were carried out. The data revealed important differences in terms of annotated genes involved in the hydrocarbon degradation process that may explain the molecular mechanisms of hydrocarbon and xenobiotic biotransformation. Notably, many gene families were expanded to explain COTT’s competitive ability to manage habitat-specific stressors. Gene-based evidence of the metabolic potential of COTT support the application of indigenous microbes for remediation of polluted terrestrial environments and provides a genomic resource for improving our understanding of how to optimize these characteristics for more effective bioremediation.

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“…The proteins identified for the Chryseobacterium genus have been assigned to different species in this group. They are uncommon human pathogens and rather associated with nosocomial infections (contaminated medical devices) [51]. Usually, these bacteria are found in the environment (water, plants) and are resistant to many factors and classified as multidrugresistant bacteria [52].…”

Section: Discussionmentioning

confidence: 99%

Trial Proteomic Qualitative and Quantitative Analysis of the Protein Matrix of Submandibular Sialoliths

et al. 2021

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Our studies aimed to explore the protein components of the matrix of human submandibular gland sialoliths. A qualitative analysis was carried out based on the filter aided sample preparation (FASP) methodology. In the protein extraction process, we evaluated the applicability of the standard demineralization step and the use of a lysis buffer containing sodium dodecyl sulfate (SDS) and dithiothreitol (DTT). The analysis of fragmentation spectra based on the human database allowed for the identification of 254 human proteins present in the deposits. In addition, the use of multi-round search in the PEAKS Studio program against the bacterial base allowed for the identification of 393 proteins of bacterial origin present in the extract obtained from sialolith, which so far has not been carried out for this biological material. Furthermore, we successfully applied the SWATH methodology, allowing for a relative quantitative analysis of human proteins present in deposits. The obtained results correlate with the classification of sialoliths proposed by Tretiakow. The performed functional analysis allowed for the first time the selection of proteins, the levels of which differ between the tested samples, which may suggest the role of these proteins in the calcification process in different types of sialoliths. These are preliminary studies, and drawing specific conclusions requires research on a larger group, but it provides us the basis for the continuation of the work that has already begun.

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Phylogenetic insights into the diversity of Chryseobacterium species

Cited by 7 publications

References 81 publications

Bacteria associated with cockroaches: health risk or biotechnological opportunity?

Bacteria associated with cockroaches: health risk or biotechnological opportunity?

Genome features of a novel hydrocarbonoclastic Chryseobacterium oranimense strain and its comparison to bacterial oil-degraders and to other C. oranimense strains

Trial Proteomic Qualitative and Quantitative Analysis of the Protein Matrix of Submandibular Sialoliths

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