Bacterial strains

In this study, with the aim of determining and assessing the influence of several culture conditions on the ligninolytic enzyme (LiP, MnP, and Lac) activity of bacteria, five lignin-degrading bacteria strains were isolated from two different soil samples and cultured on minimum salt medium agar containing alkaline lignin (MSML agar).

10p vibecca 01-10-2024 1 1   Download

Distribution of the proportion of bacterial isolates and their antibiotic resistance rate at Ninh Thuan Provincial General Hospital (NTPGH). Subjects and methods: All bacterial isolates from various types of clinical specimens from a departments of NTPGH from October 1, 2022 to September 30, 2023.

9p vifaye 20-09-2024 12 1   Download

The outcomes are to be compared with typical drugs given that compounds are examined against gram-positive and gram-negative strains of bacteria and fungus. Against bacterial strains, products with nitro, methyl, and bromo substituents in the p-position of the benzene ring, as well as products with the nitro group at the m-position, showed very excellent activities against bacterial strains, while compounds with chloro substituent at p-position and m-position demonstrated good activity against the fungal strains Aspergillus niger and Fusarium javanicum.

8p dianmotminh02 03-05-2024 7 2   Download

The research article "Polyester production by halophilic and halotolerant bacterial strains obtained from mangrove soil samples located in Northern Vietnam" reports halophilic and halotolerant bacteria isolated from mangrove forests located in Northern Vietnam. Several of these bacteria were able to synthesize polyhydroxyalkanoates (PHAs). PHAs are polyesters stored by microorganisms under the presence of considerable amounts of a carbon source and deficiency of other essential nutrient such as nitrogen or phosphorous.

12p runordie3 27-06-2022 10 3   Download

In the present work "Poly(3-Hydroxybutyrate-co-3-Hydroxyvalerate) Production by a Moderate Halophile Yangia sp. ND199 Using Glycerol as a Carbon Source", we have evaluated the cell growth and PHA production by Yangia sp. ND199 on different carbon sources in the saline medium and subsequently continued the studies on PHA accumulation using glycerol as carbon source.

13p runordie3 27-06-2022 6 2   Download

Bacterial strains isolated from milk and dairy products produce a range of lantibiotics which can employed for development of food preservatives, flavor enhancers and as alternate treatment strategies for multi drug resistant bacterial pathogens. The diverse category of lantibiotics from milk isolates include well characterized prototypes like nisin to newer peptides yet to be studied.

7p mudbound 10-12-2021 14 2   Download

the results have shown that among twelve isolated bacterial strains, three strains were screened based on their enzymatic potential, and were later identified by 16S rRNA gene sequencing, i.e. showing that the strains belong to the genus Pseudomonas aeruginosa, and Bacillus wiedmannii with a similarity percentage of 99.33% and 100%, respectively, with their corresponding type of strains.

7p mudbound 10-12-2021 9 1   Download

Objectives: The aims were to evaluate the effects of some selected endophytic bacteria strains on growth, development of Robusta coffee in a greenhouse and in field conditions. Based on these results, further studies were conducted to determine the effective dose and compatible combination of these strains on the growth and yield of the coffee in the field.

24p prisonbreak123 21-05-2021 18 2   Download

This study presents a new halophilic bacterial strain named Yangia sp. ND 218 which was isolated from the Giao Thuy mangrove, Nam Dinh Province, Vietnam which grew and accumulated PHA in a high salt medium. The possibility of designing an open (unsterile) fermentation process using Yangia sp. ND 218 was investigated.

7p tamynhan8 04-11-2020 11 1   Download

The bioflocculation efficiency was depended on the pH, carbon sources, the initial algae concentrations, bacteria strains, and the inital bioflocculant-producing bacteria concentrations. The temperature lightly affected the bioflocculation, no noticeable behavioral or activity changes were observed in mice that were orally administrated with four bacterial strains, and no treatment-related illness or death occurred after 72 hours.

13p shiwo_ding7 05-06-2019 19 3   Download

Ethanolic and aqueous (hot and cold) extracts of the fruit pulp, stem bark and leaves of Tamarindus indica were evaluated for antibacterial activity, in vitro, against 13 Gram negative and 5 Gram positive bacterial strains using agar well diffusion and macro broth dilution techniques, simultaneously.

12p tanbnhp 22-03-2014 46 5   Download

Chlorite dismutase (EC 1.13.11.49), an enzyme capable of reducing chlorite to chloride while producing molecular oxygen, has been characterized using EPR and optical spectroscopy. The EPR spectrum of GR-1 chlorite dis-mutase shows two different high-spin ferric heme species, whichwe have designated
narrow(gx,y,z¼6.24, 5.42, 2.00) and
broad(gz,y,x ¼6.70, 5.02, 2.00).

7p research12 29-04-2013 37 3   Download

A bacterial strain that grew on 4-amino-3-hydroxybenzoic acidwas isolated fromfarmsoil. The isolate, strain 10d, was identified as a species of Bordetella.CellextractsofBorde-tellasp. strain10dgrownon4-amino-3-hydroxybenzoicacid containedanenzyme that cleaved this substrate.The enzyme was purified to homogeneity with a 110-fold increase in specific activity. The purified enzyme was characterized as a meta-cleavage dioxygenase that catalyzed the ring fission betweenC2 andC3 of 4-amino-3-hydroxybenzoic acid, with the consumption of 1 mol of O2per mol of substrate....

7p tumor12 22-04-2013 37 3   Download

Mitochondrial ribosomal proteins (mrps) of the budding yeast, Saccharomyces cerevisiae, have been extensively characterized genetically and biochemically. However, the list of thegenes encoding individualmrps is still not complete and quite a fewof the mrps are only predicted from their similarity to bacterial ribosomal proteins. We have con-structed a yeast strain in which one of the small subunit proteins, termed Mrp4, was tagged with S-peptide and used for affinity purification of mitochondrial ribosome. ...

12p tumor12 22-04-2013 52 2   Download

Only 2% of the known natural products with acetylenic bonds area-alkynoates. Their polarized, conjugated triple bond is an optimal target for an enzymic hydration. Therefore they are good substrates for the enzymes involved in metabolism of acetylenic compounds, resulting in products that are suitable for bacterial growth. We isolated a Pseudomonas putida strain growing on 2-butynedioate as well as on propynoate, and determined the metabolic pathways of these two a-alkynoates.

6p tumor12 20-04-2013 28 1   Download

Several microbial pathogens have been reported to interact with glycosaminoglycans (GAGs) on cell surfaces and in the extracellularmatrix. Herewe demonstrate thatM protein, a major surface-expressed virulence factor of the human bac-terial pathogen, Streptococcus pyogenes, mediates binding to various forms of GAGs. Hence, S. pyogenesstrains expressing a large number of different types of M proteins bound to dermatan sulfate (DS), highly sulfated fractions of heparan sulfate (HS) and heparin, whereas strains deficient in M protein surface expression failed to interact with these GAGs. ...

9p fptmusic 16-04-2013 44 6   Download

Although isopentenyl diphosphate–dimethylallyl diphos-phate isomerase is thought to be essential for archaea because they use themevalonate pathway, its corresponding activityhas not beendetected inanyarchaea.Anovel typeof the enzyme, which has no sequence similarity to the known, well-studied type of enzymes, was recently reported in some bacterial strains. In this study, we describe the cloning of a gene of a homologue of the novel bacterial isomerase froma thermoacidophilic archaeon Sulfolobus shibatae. ...

7p dell39 03-04-2013 30 4   Download

The incidence of mixed viral⁄bacterial infections has increased recently because of the dramatic increase in antibiotic-resistant strains, the emer-gence of new pathogens, and the resurgence of old ones. Despite the relat-ively well-known role of viruses in enhancing bacterial infections, the impact of bacterial infections on viral infections remains unknown.

14p galaxyss3 19-03-2013 37 3   Download

A gene encoding a eugenol oxidase was identified in the genome fromRho-dococcus sp. strain RHA1. The bacterial FAD-containing oxidase shares 45% amino acid sequence identity with vanillyl alcohol oxidase from the fungus Penicillium simplicissimum. Eugenol oxidase could be expressed at high levels in Escherichia coli, which allowed purification of 160 mg of eugenol oxidase from 1 L of culture. Gel permeation experiments and macromolecular MS revealed that the enzyme forms homodimers.

11p galaxyss3 19-03-2013 38 5   Download

Cytolethal distending toxin, produced by several Gram-negative bacteria, and colibactin, secreted by several commensal and extraintestinal patho-genic Escherichia coli strains, are the first bacterial genotoxins to be described to date.

12p cosis54 04-01-2013 41 3   Download