Evidence map›Paper›PMID 30550237›Full record

ArticlePolish journal of microbiology

Epilithic Biofilms in Lake Baikal: Screening and Diversity of PKS and NRPS Genes in the Genomes of Heterotrophic Bacteria.

Elena Sukhanova, Ekaterina Zimens, Oksana Kaluzhnaya, Valentina Parfenova, Olga Belykh

Open access · goldAbstract read
In one paragraph

Article in Polish journal of microbiology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.4field-weighted citation impact, top 34% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 8 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Elena SukhanovaLimnological Institute of Siberian Branch of Russian Academy of Sciences , Irkutsk , Russia.
Ekaterina ZimensLimnological Institute of Siberian Branch of Russian Academy of Sciences , Irkutsk , Russia.
Oksana KaluzhnayaLimnological Institute of Siberian Branch of Russian Academy of Sciences , Irkutsk , Russia.
Valentina ParfenovaLimnological Institute of Siberian Branch of Russian Academy of Sciences , Irkutsk , Russia.
Olga BelykhLimnological Institute of Siberian Branch of Russian Academy of Sciences , Irkutsk , Russia.
Siberian Branch of the Russian Academy of Sciences · RULimnological Institute · RU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A collection of heterotrophic bacteria consisting of 167 strains was obtained from microbial communities of biofilms formed on solid substrates in the littoral zone of Lake Baikal. Based on the analysis of 16S rRNA gene fragments, the isolates were classified to four phyla: Proteobacteria , Firmicutes , Actinobacteria , and Bacteroidetes . To assess their biotechnological potential, bacteria were screened for the presence of PKS (polyketide synthase) and NRPS (non-ribosomal peptide synthetases) genes. PKS genes were detected in 41 strains (25%) and NRPS genes in 73 (43%) strains by PCR analysis. The occurrence of PKS genes in members of the phylum Firmicutes (the genera Bacillus and Paenibacillus ) was 34% and NRPS genes were found in 78%. In Proteobacteria , PKS and NRPS genes were found in 20% and 32%, and in 22% and 22% of Actinobacteria , respectively. For further analysis of PKS and NRPS genes, six Bacillus and Paenibacillus strains with antagonistic activity were selected and underwent phylogenetic analysis of 16S rRNA genes. The identification of PKS and NRPS genes in the strains investigated was demonstrated among the homologues the genes involved in the biosynthesis of antibiotics (bacillaene, difficidine, erythromycin, bacitracin, tridecaptin, and fusaricidin), biosurfactants (iturin, bacillomycin, plipastatin, fengycin, and surfactin) and antitumor agents (epothilone, calyculin, and briostatin). Bacillus spp. 9A and 2A strains showed the highest diversity of PKS and NRPS genes. Bacillus and Paenibacillus strains isolated from epilithic biofilms in Lake Baikal are potential producers of antimicrobial compounds and may be of practical interest for biotechnological purposes. A collection of heterotrophic bacteria consisting of 167 strains was obtained from microbial communities of biofilms formed on solid substrates in the littoral zone of Lake Baikal. Based on the analysis of 16S rRNA gene fragments, the isolates were classified to four phyla:

Indexed as

BiofilmsGenetic VariationGenome, BacterialActinobacteriaBacillotaBacteroidetesHeterotrophic ProcessesLakesMicrobiotaPeptide SynthasesPolyketide SynthasesProteobacteriaRNA, Ribosomal, 16SSecondary Metabolismnon-ribosomal peptide synthasePeptide SynthasesPolyketide SynthasesRNA, Ribosomal, 16Sepilithic biofilmsLake Baikalnon-ribosomal peptide synthetasespolyketide synthase genessecondary metabolites

Identifiers

PMID30550237
PMCPMC7256756
OpenAlexW2905004079

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.