6,604 results match your criteria Antonie Van Leeuwenhoek International Journal Of General And Molecular Micr[Journal]

Fibrivirga algicola gen. nov., sp. nov., an algicidal bacterium isolated from a freshwater river.

Antonie Van Leeuwenhoek 2022 May 25. Epub 2022 May 25.

Department of Environmental & Energy Engineering, University of Suwon, 17 Wauan-gil, Bongdam-eup, Hwaseong-si, Gyeonggi-do, 18323, Republic of Korea.

An aerobic, gram-stain-negative, pink-colored, non-motile and rod-shaped algicidal bacterium, designated as JA-25 was isolated from freshwater in Geumgang River, Republic of Korea. Strain JA-25 grew at 15-30 °C and pH 6-9, and did not require NaCl. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain JA-25 belongs to the family 'Spirosomaceae' and is most closely related to Fibrella aestuarina BUZ 2 (93. Read More

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Gottfriedia endophyticus sp. nov., a novel indole-acetic acid producing bacterium isolated from the roots of rice plant.

Antonie Van Leeuwenhoek 2022 May 23. Epub 2022 May 23.

Department of Life Science, Dongguk University Seoul, Goyang, 10326, South Korea.

A Gram-stain-positive, aerobic, motile and rod-shaped bacterium, designated RG28, was isolated from the roots of rice plant collected from paddy fields in Ilsan, South Korea. Cells of the strain were oxidase-negative but catalase-positive. Strain RG28 was found to grow at 10-50 °C (optimum, 25-30 °C), pH 5. Read More

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Streptomyces spinosus sp. nov. and Streptomyces shenzhenensis subsp. oryzicola subsp. nov. endophytic actinobacteria isolated from Jasmine rice and their genome mining for potential as antibiotic producers and plant growth promoters.

Antonie Van Leeuwenhoek 2022 May 21. Epub 2022 May 21.

Department of Medical Biotechnology, College of Medicine and Public Health, Flinders University, Adelaide 5042, Australia.

Two endophytic actinobacteria, strains SBTS01 and W18L9, were isolated from leaf sheath and leaf tissue, respectively, of Jasmine rice (Oryza sativa KDML 105) grown in a rice paddy field in Roi Et Province, Thailand. A polyphasic taxonomic study showed that both strains belong to the genus Streptomyces; they are aerobic, forming well-developed substrate mycelia and aerial mycelia with long chains of spores. Strain SBTS01 shares high 16S rRNA gene sequence similarity with Streptomyces rochei NRRL B-2410 (99. Read More

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Prevalence of Anaplasma phagocytophilum in questing Ixodes ricinus nymphs across twenty recreational areas in England and Wales.

Ticks Tick Borne Dis 2022 May 12;13(4):101965. Epub 2022 May 12.

Medical Entomology & Zoonoses Ecology, UK Health Security Agency, Porton Down, UK; NIHR Health Protection Research Unit in Environmental Change and Health.

Human granulocytic anaplasmosis and tick-borne fever, affecting livestock, are diseases caused by an infection with the bacterium Anaplasma phagocytophilum. Its transmission dynamics between vertebrate hosts and ticks remain largely unknown and the potential impact on public health in the United Kingdom is unclear. This study aimed to assess the distribution and estimate the prevalence of A. Read More

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A genomic overview including polyphasic taxonomy of Thalassoroseus pseudoceratinae gen. nov., sp. nov. isolated from a marine sponge, Pseudoceratina sp.

Antonie Van Leeuwenhoek 2022 May 19. Epub 2022 May 19.

Department of Plant Sciences, School of Life Sciences, University of Hyderabad, P.O. Central University, Hyderabad, 500046, India.

A pink-coloured, salt- and alkali-tolerant planctomycetal strain (JC658) with oval to pear-shaped, motile, aerobic, Gram-negative stained cells was isolated from a marine sponge, Pseudoceratina sp. Strain JC658 shares the highest 16S rRNA gene sequence identity with Maioricimonas rarisocia Mal4 (< 89.2%) in the family Planctomycetaceae. Read More

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A Network Approach to Compliance: A Complexity Science Understanding of How Rules Shape Behavior.

J Bus Ethics 2022 May 10:1-26. Epub 2022 May 10.

School of Law, University of Amsterdam, Roetersstraat 11, 1018 WB Amsterdam, The Netherlands.

To understand how compliance develops both in everyday and corporate environments, it is crucial to understand how different mechanisms work together to shape individuals' (non)compliant behavior. Existing compliance studies typically focus on a subset of theories (i.e. Read More

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Rhodoflexus caldus gen. nov., sp. nov., a new member of the phylum Bacteroidota isolated from a hot spring sediment.

Antonie Van Leeuwenhoek 2022 May 14. Epub 2022 May 14.

State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China.

A thermophilic bacterium, designated strain SYSU G04325, was isolated from a hot spring sediment in Yunnan, China. Polyphasic taxonomic analyses and whole-genome sequencing were used to determine the taxonomic position of the strain. Phylogenetic analysis using 16S rRNA gene sequences indicated that strain SYSU G04325 shows high sequence similarity to Thermoflexibacter ruber NBRC 16677 (86. Read More

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Evaluation of foods, drinks and diets in the Netherlands according to the degree of processing for nutritional quality, environmental impact and food costs.

BMC Public Health 2022 05 3;22(1):877. Epub 2022 May 3.

Centre for Nutrition, Prevention and Health Services, National Institute for Public Health and the Environment (RIVM), Antonie van Leeuwenhoeklaan 9, Bilthoven, 3721 MA, The Netherlands.

Objective: This study investigates nutritional quality, environmental impact and costs of foods and drinks and their consumption in daily diets according to the degree of processing across the Dutch population.

Design: The NOVA classification was used to classify the degree of processing (ultra-processed foods (UPF) and ultra-processed drinks (UPD)). Food consumption data were derived from the Dutch National Food Consumption Survey 2012-2016. Read More

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A dominant clonal lineage of Streptococcus uberis in cattle in Germany.

Antonie Van Leeuwenhoek 2022 Apr 30. Epub 2022 Apr 30.

Hessian State Laboratory, Department of Veterinary Medicine, Giessen, Germany.

Bovine mastitis causes enormous economic losses in the dairy industry with Streptococcus uberis as one of the most common bacterial pathogens causing clinical and subclinical variations. In most cases mastitis can be cured by intramammary administration of antimicrobial agents. However, the severity of the clinical manifestations can vary greatly from mild to severe symtoms. Read More

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The polyene antifungal candicidin is selectively packaged into membrane vesicles in Streptomyces S4.

Arch Microbiol 2022 Apr 30;204(5):289. Epub 2022 Apr 30.

School of Biosciences, Division of Natural Sciences, University of Kent, Canterbury, CT2 7NJ, UK.

In recent years, much attention has been focused on the biogenesis, engineering and utilisation of outer membrane vesicles (OMVs) in Gram-negative bacteria in a range of environments and niches. While the precise mechanism of biogenesis is unknown, it is focused on the modification of the Gram-negative cell wall to facilitate blebbing at sites of weakness in and around the characteristically thin peptidoglycan layer within the periplasm. Here, we investigate the biogenesis of membrane vesicles (MVs) in the Gram-positive organism Streptomyces albus S4 (Seipke et al. Read More

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Hospital-based care and/or death followed by repatriation in Dutch travelers: The HAZARD study.

Travel Med Infect Dis 2022 Apr 20:102329. Epub 2022 Apr 20.

Department of Infectious Diseases, Leiden University Medical Center (LUMC), Albinusdreef 2, 2333 ZA, Leiden, the Netherlands; Center for Infectious Disease Control, Netherlands Institute for Public Health and the Environment (RIVM), Antonie van Leeuwenhoeklaan 9, 3721 MA, Bilthoven, the Netherlands.

Background: Travelers can experience health problems while abroad. This descriptive study aimed to quantify the disease burden leading to hospital-based care, repatriation or death in Dutch travelers during a stay in a foreign country, including Europe.

Methods: Retrospective study of demographic and clinical data from three medical assistance centers (MACs) and the Dutch Ministry of Foreign Affairs on Dutch travelers receiving hospital-based care or who died abroad in the years 2010-2014. Read More

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Prospecting potential of endophytes for modulation of biosynthesis of therapeutic bioactive secondary metabolites and plant growth promotion of medicinal and aromatic plants.

Antonie Van Leeuwenhoek 2022 Jun 23;115(6):699-730. Epub 2022 Apr 23.

ICAR-Central Arid Zone Research Institute, Jodhpur, Rajasthan, 342003, India.

Medicinal and aromatic plants possess pharmacological properties (antidiabetes, anticancer, antihypertension, anticardiovascular, antileprosy, etc.) because of their potential to synthesize a wide range of therapeutic bioactive secondary metabolites. The concentration of bioactive secondry metabolites depends on plant species, local environment, soil type and internal microbiome. Read More

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Isolation of Hermetia illucens larvae core gut microbiota by two different cultivation strategies.

Antonie Van Leeuwenhoek 2022 Jun 22;115(6):821-837. Epub 2022 Apr 22.

Institute of Applied Microbiology, Justus-Liebig University Giessen, IFZ-Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany.

Hermetia illucens larvae (black soldier fly larvae, BSFL) convert efficiently organic waste to high quality biomass. To gain knowledge on the specific functions of gut microbes in this process it is a prerequisite to culture members of the core gut microbiota. Two different cultivation strategies were applied here for this purpose, a dilution-to-extinction cultivation and direct plating using six different media to culture aerobic heterotrophic bacteria. Read More

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International Regulatory Collaboration on the Analysis of Nitrosamines in Metformin-Containing Medicines.

AAPS J 2022 04 21;24(3):56. Epub 2022 Apr 21.

European Directorate for the Quality of Medicines & HealthCare, 7 Allée Kastner CS 30026, 67081, Strasbourg, France.

Recalls of some batches of metformin have occurred due to the detection of N-nitrosodimethylamine (NDMA) in amounts above the acceptable intake (AI) of 96 ng per day. Prior to the recalls, an international regulatory laboratory network had been monitoring drugs for nitrosamine impurities with each laboratory independently developing and validating multiple analytical procedures to detect and measure nitrosamines in metformin drugs used in their jurisdictions. Here, we provide an overview of the analysis of metformin active pharmaceutical ingredients (APIs) and drug products with 1090 samples (875 finished dosage forms (FDFs) and 215 API samples) tested beginning in November of 2019 through July of 2020. Read More

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Phylogenetic diversity in sulphate-reducing bacterial communities from oxidised and reduced bottom sediments of the Barents Sea.

Antonie Van Leeuwenhoek 2022 Jun 18;115(6):801-820. Epub 2022 Apr 18.

Winogradsky Institute of Microbiology, Research Centre of Biotechnology, Russian Academy of Sciences, Moscow, Russia, 117312.

In the bottom sediments from a number of the Barents Sea sites, including coastal areas of the Novaya Zemlya, Franz Josef Land, and Svalbard archipelagos, sulphate reduction rates were measured and the phylogenetic composition of sulphate-reducing bacterial (SRB) communities was analysed for the first time. Molecular genetic analysis of the sequences of the 16S rRNA and dsrB genes (the latter encodes the β-subunit of dissimilatory (bi)sulphite reductase) revealed significant differences in the composition of bacterial communities in different sampling stations and sediment horizons of the Barents Sea depending on the physicochemical conditions. The major bacteria involved in reduction of sulphur compounds in Arctic marine bottom sediments belonged to Desulfobulbaceae, Desulfobacteraceae, Desulfovibrionaceae, Desulfuromonadaceae, and Desulfarculaceae families, as well as to uncultured clades SAR324 and Sva0485. Read More

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FAIR Genomes metadata schema promoting Next Generation Sequencing data reuse in Dutch healthcare and research.

Sci Data 2022 04 13;9(1):169. Epub 2022 Apr 13.

University of Groningen and University Medical Center Groningen, Genomics Coordination Center, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands.

The genomes of thousands of individuals are profiled within Dutch healthcare and research each year. However, this valuable genomic data, associated clinical data and consent are captured in different ways and stored across many systems and organizations. This makes it difficult to discover rare disease patients, reuse data for personalized medicine and establish research cohorts based on specific parameters. Read More

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Antagonistic co-contraction can minimize muscular effort in systems with uncertainty.

PeerJ 2022 7;10:e13085. Epub 2022 Apr 7.

Parker-Hannifin Laboratory for Human Motion and Control, Department of Mechanical Engineering, Cleveland State University, Cleveland, Ohio, United States.

Muscular co-contraction of antagonistic muscle pairs is often observed in human movement, but it is considered inefficient and it can currently not be predicted in simulations where muscular effort or metabolic energy are minimized. Here, we investigated the relationship between minimizing effort and muscular co-contraction in systems with random uncertainty to see if muscular co-contraction can minimize effort in such system. We also investigated the effect of time delay in the muscle, by varying the time delay in the neural control as well as the activation time constant. Read More

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Genome-based classification of Streptomyces pinistramenti sp. nov., a novel actinomycete isolated from a pine forest soil in Poland with a focus on its biotechnological and ecological properties.

Antonie Van Leeuwenhoek 2022 Jun 11;115(6):783-800. Epub 2022 Apr 11.

School of Natural and Environmental Sciences, Ridley Building, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK.

A genomic-based polyphasic study was undertaken to establish the taxonomic status and biotechnological and ecological potential of a Streptomyces strain, isolate SF28, that was recovered from the litter layer in a Polish Pinus sylvestris forest. The isolate had morphological characteristics and chemotaxonomic properties consistent with its classification in the genus Streptomyces. It formed long straight chains of spores with smooth surfaces, contained LL-diaminopimelic acid, glucose and ribose in whole-organism hydrolysates, produced major proportions of straight, iso- and anteiso- fatty acids, hexa- and octa-hydrogenated menaquinones with nine isoprene units and had a polar lipid pattern composed of diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylmethylethanolamine, glycophospholipids and three uncharacterized components. Read More

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Physical activity attenuates but does not eliminate coronary heart disease risk amongst adults with risk factors: EPIC-CVD case-cohort study.

Eur J Prev Cardiol 2022 Apr 11. Epub 2022 Apr 11.

CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, C. de Melchor Fernández Almagro, 3, 28029 Madrid, Spain.

Aims: This study aimed to evaluate the association between physical activity and the incidence of coronary heart disease (CHD) in individuals with and without CHD risk factors.

Methods And Results: EPIC-CVD is a case-cohort study of 29 333 participants that included 13 582 incident CHD cases and a randomly selected sub-cohort nested within the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort. Self-reported physical activity was summarized using the Cambridge physical activity index (inactive, moderately inactive, moderately active, and active). Read More

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Jeotgalibacillus aurantiacus sp. nov., a novel orange-pigmented species with a carotenoid biosynthetic gene cluster, isolated from wetland soil.

Antonie Van Leeuwenhoek 2022 Jun 8;115(6):773-782. Epub 2022 Apr 8.

Marine College, Shandong University, Weihai, 264209, China.

A Gram-stain-positive, orange-pigmented, rod-shaped and flagellated bacterial strain T12 was isolated from wetland soil in Kunyu Mountain Wetland in Yantai, China. The strain was able to grow at 15-40 °C (optimum 37 °C), at 0.0-9. Read More

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SARS-CoV-2 Spike S1-specific IgG kinetic profiles following mRNA or vector-based vaccination in the general Dutch population show distinct kinetics.

Sci Rep 2022 04 8;12(1):5935. Epub 2022 Apr 8.

Centre for Immunology of Infectious Diseases and Vaccines, National Institute for Public Health and the Environment (RIVM), Antonie van Leeuwenhoeklaan 9, 3721 MA, Bilthoven, The Netherlands.

mRNA- and vector-based vaccines are used at a large scale to prevent COVID-19. We compared Spike S1-specific (S1) IgG antibodies after vaccination with mRNA-based (Comirnaty, Spikevax) or vector-based (Janssen, Vaxzevria) vaccines, using samples from a Dutch nationwide cohort. In adults 18-64 years old (n = 2412), the median vaccination interval between the two doses was 77 days for Vaxzevria (interquartile range, IQR: 69-77), 35 days (28-35) for Comirnaty and 33 days (28-35) for Spikevax. Read More

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Correction to: Description of desferrioxamine-producing bacterium Chitinophaga agrisoli sp. nov., isolated from soil.

Antonie Van Leeuwenhoek 2022 Jun;115(6):839-840

Industrial Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 305-806, Korea.

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Description and genome analysis of Luteimonas viscosa sp. nov., a novel bacterium isolated from soil of a sunflower field.

Antonie Van Leeuwenhoek 2022 Jun 7;115(6):749-760. Epub 2022 Apr 7.

Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing, 100081, People's Republic of China.

Strain XBU10 was isolated from a soil sample of a sunflower plot in Inner Mongolia, China. The isolate was a Gram-stain-negative, aerobic, non-motile, rod-shaped bacterium, and its colonies were bright yellow in colour. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain XBU10 belonged to the genus Luteimonas of the family Lysobacteraceae and was most closely related to Luteimonas panaciterrae Gsoil 068 (97. Read More

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Microvirga splendida sp. nov., bacteria isolated from soil.

Antonie Van Leeuwenhoek 2022 Jun 7;115(6):741-747. Epub 2022 Apr 7.

Department of Bio & Environmental Technology, College of Natural Science, Seoul Women's University, Seoul, 01797, Korea.

Two bacterial strains, BT325 and BT690, were isolated from soil samples collected in Korea. Both strains were Gram stain-negative, short rod-shaped, and formed light-pink colored colonies. The 16S rRNA sequence similarity of strains BT325 and BT690 shared a sequence similarity of 99. Read More

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Persistence of ecologically similar fungi in a restricted floral niche.

Antonie Van Leeuwenhoek 2022 Jun 7;115(6):761-771. Epub 2022 Apr 7.

Department of Conservation Ecology and Entomology, Stellenbosch University, Private Bag X1, Stellenbosch, 7600, South Africa.

Fungi in the genera Knoxdaviesia and Sporothrix dominate fungal communities within Protea flowerheads and seed cones (infructescences). Despite apparently similar ecologies, they show strong host recurrence and often occupy the same individual infructescence. Differences in host chemistry explain their host consistency, but the factors that allow co-occupancy of multiple species within individual infructescences are unknown. Read More

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Neotabrizicola shimadae gen. nov., sp. nov., an aerobic anoxygenic phototrophic bacterium harbouring photosynthetic genes in the family Rhodobacteraceae, isolated from a terrestrial hot spring.

Antonie Van Leeuwenhoek 2022 Jun 5;115(6):731-740. Epub 2022 Apr 5.

Department of Biological Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo, 192-0397, Japan.

A bacteriochlorophyll-containing bacterium, designated as strain N10, was isolated from a terrestrial hot spring in Nagano Prefecture, Japan. Gram-stain-negative, oxidase- and catalase-positive and ovoid to rod-shaped cells showed the features of aerobic anoxygenic phototrophic bacteria, i.e. Read More

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Precuneus connectivity and symptom severity in chronic depression.

Psychiatry Res Neuroimaging 2022 Jun 30;322:111471. Epub 2022 Mar 30.

Department of Psychiatry and Psychotherapy, Charité - Universitätsmedizin Berlin, Berlin, Germany; Department of Psychiatry and Psychotherapy, CBASP Center of Competence, University of Bonn, Bonn, Germany.

Although abnormal resting state connectivity within several brain networks has been repeatedly reported in depression, little is known about connectivity in patients with early onset chronic depression. We compared resting state connectivity in a homogenous sample of 32 unmedicated patients with early onset chronic depression and 40 healthy control participants in a seed-to-voxel-analysis. According to previous meta-analyses on resting state connectivity in depression, 12 regions implicated in default mode, limbic, frontoparietal and ventral attention networks were chosen as seeds. Read More

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