4,905 results match your criteria Archives of microbiology[Journal]


Antibacterial effect of Blumea balsamifera DC. essential oil against Haemophilus parasuis.

Arch Microbiol 2020 Jul 8. Epub 2020 Jul 8.

Department of Pharmacy, College of Veterinary Medicine, Sichuan Agricultural University, Huimin Road No. 211, Wenjiang District, Chengdu, Sichuan, People's Republic of China.

Haemophilus parasuis (H. parasuis), the cause of the Glasser's disease, is a potentially pathogenic gram-negative organism that colonizes the upper respiratory tract of pigs. The extraction of Blumea balsamifera DC. Read More

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http://dx.doi.org/10.1007/s00203-020-01946-4DOI Listing

Deinococcus detaillensis sp. nov., isolated from humus soil in Antarctica.

Arch Microbiol 2020 Jul 3. Epub 2020 Jul 3.

State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, PR China.

A Gram-staining-positive, non-motile, coccus or short-rod-shaped bacterium, designated H1, was isolated from a humus soil sample in the Detaille Island of Antarctica. The 16S rRNA gene sequence result indicated that strain H1 shared the highest 16S rRNA gene sequence identity with the type strain of Deinococcus alpinitundrae (96.2%). Read More

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http://dx.doi.org/10.1007/s00203-020-01920-0DOI Listing

Aerobic degradation of BTEX compounds by Streptomyces species isolated from activated sludge and agricultural soils.

Arch Microbiol 2020 Jul 2. Epub 2020 Jul 2.

Faculté Des Sciences de La Nature Et de La Vie, Département de Microbiologie, Université Frères Mentouri-Constantine 1, 25017, Constantine, Algeria.

In this study, we tested the ability of Streptomyces to use for their growth benzene, toluene, ethylbenzene, and o-, m-, p-xylenes as sole source of carbon and energy. These bacteria were isolated from agricultural soils and activated sludge samples from a wastewater treatment plant. The results show that Streptomyces are capable of degrading at least one of the BTEX compounds. Read More

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http://dx.doi.org/10.1007/s00203-020-01970-4DOI Listing

Biodegradation of 3-chlorobenzoic acid with electron shuttle systems: pathways and molecular identification.

Arch Microbiol 2020 Jul 1. Epub 2020 Jul 1.

Radiation Microbiology Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), 3 Ahmed El-Zumor street, B.O. 29, Children Village, Madinat Nasr, Cairo, Egypt.

A synergy of biodegradation and electron shuttle systems is a promising strategy for eliminating pollutants including chlorinated aromatic compounds. The present work studies the degradation products of 3-chlorobenzoic acid by Pseudomonas putida in the presence of an electron shuttle system (ESS) composed of citrate and pyruvate as electron donors and the pollutant as an electron acceptor. Chromatographic results showed different pathways involved in the biodegradation process under the influence of electron shuttle systems. Read More

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http://dx.doi.org/10.1007/s00203-020-01965-1DOI Listing

Microbiological quality and safety of commercialized thalassotherapy products based on marine mud and algae extracts in Tunisia.

Arch Microbiol 2020 Jun 30. Epub 2020 Jun 30.

Laboratory of Microorganisms and Active Biomolecules, MBA-LR03ES03, Faculty of Sciences of Tunis, University of Tunis El Manar, Tunis, Tunisia.

A total of 15 samples of thalassotherapy products, distributed in Tunisia in their intact and final state of production, was analyzed to determine their microbiological safety status. The result shows the absence of pathogenic bacteria (Staphylococcus aureus, Candida albicans, Salmonella, Pseudomonas aeruginosa and coliforms). The incidence of contamination by Gram-positive Bacilli (mesophelic bacteria, aerobic and anaerobic spore forming bacteria, anaerobic sulphite-reducing bacteria) was found to be higher in products composed by mud and extract of alga. Read More

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http://dx.doi.org/10.1007/s00203-020-01957-1DOI Listing

Draft genome sequence of Parvularcula flava strain NH6-79, revealing its role as a cellulolytic enzymes producer.

Arch Microbiol 2020 Jun 30. Epub 2020 Jun 30.

Department of Biosciences, Faculty of Science, Universiti Teknologi Malaysia, 81310, Johor Bahru, Johor, Malaysia.

To date, the genus Parvularcula consists of 6 species and no potential application of this genus was reported. Current study presents the genome sequence of Parvularcula flava strain NH6-79 and its cellulolytic enzyme analysis. The assembled draft genome of strain NH6-79 consists of 9 contigs and 7 scaffolds with 3. Read More

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http://dx.doi.org/10.1007/s00203-020-01967-zDOI Listing

Buffalo dung-inhabiting bacteria enhance the nutrient enrichment of soil and proximate contents of Foeniculum vulgare Mill.

Arch Microbiol 2020 Jun 30. Epub 2020 Jun 30.

Department of Botany and Microbiology, Gurukula Kangri Vishwavidyalaya, Haridwar, Uttarakhand, 249404, India.

The present study was aimed to study the effect of bacteria inhabiting in buffalo dung on nutritional properties of soil and plant. Three beneficial bacteria Proteus mirabilis, Pseudomonas aeruginosa, and Enterobacter xiangfangensis were isolated from buffalo dung to evaluate for their effects individually as well as in consortium. The combined effect of P. Read More

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http://dx.doi.org/10.1007/s00203-020-01969-xDOI Listing

Identification of the genes controlling biofilm formation in the plant commensal Pseudomonas protegens Pf-5.

Arch Microbiol 2020 Jun 30. Epub 2020 Jun 30.

School of Applied Biological Science, Hiroshima University, Higashi-Hiroshima, 739-8528, Japan.

Determinant genes controlling biofilm formation in a plant commensal bacterium, Pseudomonas protegens Pf-5, were identified by transposon mutagenesis. Comprehensive screening of 7500 transposon-inserted mutants led to the isolation of four mutants exhibiting decreased and five mutants exhibiting increased biofilm formation. Mutations in the genes encoding MFS drug resistance transporter, LapA adhesive protein, RetS sensor histidine kinase/response regulator, and HecA adhesin/hemagglutinin led to decreased biofilm formation, indicating that these genes are necessary for biofilm formation in Pf-5. Read More

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http://dx.doi.org/10.1007/s00203-020-01966-0DOI Listing

Sphingomonas parva sp. nov., isolated from soil in Jeju Island.

Arch Microbiol 2020 Jun 27. Epub 2020 Jun 27.

Department of Bio and Environmental Technology, College of Natural Science, Seoul Women's University, Seoul, 139-774, South Korea.

A Gram staining-negative, yellow-colored, rod-shaped, non-motile and aerobic, designated strain 17J27-24 was isolated from a soil sample in Korea. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain 17J27-24 was related to the members of the family Sphingomonadaceae and formed a distinct monophyletic cluster within the genus Sphingomonas with Sphingomonas deserti (98.3% 16S rRNA gene sequence similarity). Read More

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http://dx.doi.org/10.1007/s00203-020-01925-9DOI Listing

Amelioration effect of salt-tolerant plant growth-promoting bacteria on growth and physiological properties of rice (Oryza sativa) under salt-stressed conditions.

Arch Microbiol 2020 Jun 26. Epub 2020 Jun 26.

C.G. Bhakta Institute of Biotechnology, Uka Tarsadia University, Maliba Campus, Bardoli, Surat, Gujarat, 394 350, India.

For sustainable agriculture in saline soil, extensive exploitation of salt-tolerant plant growth-promoting (PGP) bacteria and other symbiotic bacteria is required. This study was carried out to evaluate the efficiency of native salt-tolerant rice rhizobacteria for plant growth promotion under salt stress. A total of 188 bacteria were screened for assessing salt-tolerant capacity and nine isolates tolerating 12% NaCl (w/v) concentration were selected. Read More

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http://dx.doi.org/10.1007/s00203-020-01962-4DOI Listing

Rahnella aceris sp. nov., isolated from sap drawn from Acer pictum.

Arch Microbiol 2020 Jun 26. Epub 2020 Jun 26.

Korean Collection for Type Cultures, Biological Resource Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, 56212, Republic of Korea.

A Gram-reaction-negative, facultatively anaerobic bacterium, designated SAP-19, was isolated from sap extracted from Acer pictum in Mt. Halla in Jeju, Republic of Korea and its taxonomic statue was investigated by a polyphasic approach including genome- and 16S rRNA gene-based phylogenetic analyses. Cells were motile, short rods and showed growth at 20-30 °C, pH 4-9 and 0-6% (w/v) NaCl. Read More

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http://dx.doi.org/10.1007/s00203-020-01961-5DOI Listing

Bioproduction, structure elucidation and in vitro antiproliferative effect of eumelanin pigment from Streptomyces parvus BSB49.

Arch Microbiol 2020 Jun 26. Epub 2020 Jun 26.

Department of Biology, Faculty of Science, İstanbul University, 34116, Istanbul, Turkey.

In this study, the structure of the purified extracellular eumelanin pigment isolated from Streptomyces spp. was elucidated by detailed analysis via two different spectroscopic techniques (FT-IR and NMR). In vitro antiproliferative effects of eumelanin were evaluated on HeLa cell line. Read More

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http://dx.doi.org/10.1007/s00203-020-01956-2DOI Listing

Metagenomics analysis of fungal communities associated with postharvest diseases in pear fruits under the effect of management practices.

Arch Microbiol 2020 Jun 25. Epub 2020 Jun 25.

Institute of Applied Biosciences, CERTH, Thermi, 57001, Thessaloniki, Greece.

An amplicon metagenomic approach based on the ITS1 region of fungal rDNA was employed to identify the composition of fungal communities associated with diseases of pear fruits during postharvest storage. The sampled fruits were harvested at an orchard using routine management practices involving treatments with various chemical fungicides and were transferred to a storage packinghouse. Effective tags of reading sequences clustered into 53 OTUs whereas Ascomycota was the dominant phylum (83. Read More

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http://dx.doi.org/10.1007/s00203-020-01960-6DOI Listing

Characterization and proliferation capacity of potentially pathogenic fungi in marine and freshwater fish commercial feeds.

Arch Microbiol 2020 Jun 25. Epub 2020 Jun 25.

Programa de Doctorado en Ciencias Biológico Agropecuarias, Universidad Autónoma de Nayarit, Km. 9, Carretera Tepic-Compostela, C. P. 63780, Xalisco, Nayarit, Mexico.

In the aquaculture industry, the selection and quality of feed are highly relevant because their integrity and management have an impact on the health and development of organisms. In general, feeds contamination depends on storage conditions and formulation. Furthermore, it has been recognized that filamentous fungi are among the most important contaminating agent in formulated feeds. Read More

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http://dx.doi.org/10.1007/s00203-020-01954-4DOI Listing

Bacillus aerolatus sp. nov., a novel member of the genus Bacillus, isolated from bioaerosols in a school playground.

Arch Microbiol 2020 Jun 24. Epub 2020 Jun 24.

Department of Environmental Health, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, 510515, China.

A Gram-positive, endospore-forming, rod-shaped bacterium with a single flagellum, and a motile strain, designated CX253, was isolated from bioaerosols. The isolate is facultatively anaerobic, is able to grow at 25-45 ℃ (optimum 37 ℃) and pH 6.5-10. Read More

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http://dx.doi.org/10.1007/s00203-020-01955-3DOI Listing

Bacillus tepidiphilus sp. nov., isolated from tepid spring.

Arch Microbiol 2020 Jun 22. Epub 2020 Jun 22.

State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China.

A novel Bacillus strain, designated SYSU G01002, was isolated from a sediment sample collected from tepid spring in Tengchong, Yunnan province, south-west PR China. The 16S rRNA gene sequence analysis showed that the strain SYSU G01002 shared the highest sequence identity with the type strain of Bacillus alkalitolerans (97.7%). Read More

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http://dx.doi.org/10.1007/s00203-020-01958-0DOI Listing

Searching for mechanisms of action of antimicrobials.

Arch Microbiol 2020 Jun 21. Epub 2020 Jun 21.

Laboratory of Bacterial Physiology and Molecular Genetics, Department of Parasitology, Microbiology and Immunology, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, MG, 36036-900, Brazil.

Although development of antimicrobial resistance by bacteria is a natural phenomenon, the antibiotic resistance crisis is a reality that leads us in a gap of antimicrobial alternatives on therapeutics. Considering this cruel reality and committed to contribute to look for new antibacterial agents, this manuscript presents a review of easy laboratory methods that evaluate the mode of action of compounds, since it is a basic requirement for the discovery and development of new drugs. The literature was screened by searching the keywords "mode of action", "antibiotic", "antimicrobial activity", "inhibition mode", "method" and "bacteria" in Pubmed, Scopus, Science Direct and BVS in a period of time from 2000 to 2019. Read More

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http://dx.doi.org/10.1007/s00203-020-01959-zDOI Listing

Correction to: Understanding the survival mechanisms of Deinococcus radiodurans against oxidative stress by targeting thioredoxin reductase redox system.

Arch Microbiol 2020 Jun 20. Epub 2020 Jun 20.

Department of Biochemistry and Biotechnology, Annamalai University, Annamalainagar, Tamil Nadu, 608 002, India.

The correction does not affect the discussion or conclusions of the article. The correct image is given below. Read More

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http://dx.doi.org/10.1007/s00203-020-01953-5DOI Listing

Bacillus megaterium-induced biocorrosion on mild steel and the effect of Artemisia pallens methanolic extract as a natural corrosion inhibitor.

Arch Microbiol 2020 Jun 20. Epub 2020 Jun 20.

Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea.

Methanolic extract of Artemisia pallens (MEAP) (Asteraceae) was explored as greenbiocorrosion inhibitor for mild steel 1010 in 1.5% sodium chloride environment. Bacillus megaterium SKR7 induces the development of biofilm on the metal surface and forms the pitting corrosion. Read More

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http://dx.doi.org/10.1007/s00203-020-01951-7DOI Listing
June 2020
1.667 Impact Factor

Streptomyces boluensis sp. nov., isolated from lake sediment.

Arch Microbiol 2020 Jun 18. Epub 2020 Jun 18.

Department of Molecular Biology and Genetics, Faculty of Science and Arts, Ondokuz Mayis University, 55139, Samsun, Turkey.

A novel Gram-stain positive, aerobic, non-motile actinobacterium, designated strain YC537, was isolated from lake sediment collected from Yenicaga Lake, Bolu, Turkey, and subjected to a polyphasic taxonomic approach. The organism had phylogenetic, chemotaxonomic, cultural and morphological properties consistent with its classification in the genus Streptomyces. 16S rRNA gene sequence analysis of strain YC537 showed that it is closely related to the type strain of Streptomyces ziwulingensis F22 (97. Read More

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http://dx.doi.org/10.1007/s00203-020-01901-3DOI Listing

Soil fungal taxonomic diversity along an elevation gradient on the semi-arid Xinglong Mountain, Northwest China.

Arch Microbiol 2020 Jun 16. Epub 2020 Jun 16.

State Key Laboratory of Grassland Agro-Ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, 730000, Gansu, China.

Elevation gradients, often regarded as "natural experiments or laboratories", can be used to study changes in the distribution of microbial diversity related to changes in environmental conditions that typically occur over small geographical scales. We exploited this feature by characterizing fungal composition and diversity along an elevation gradient on Xinglong Mountain, northwest China. For this, we used MiSeq sequencing to obtain fungal sequences and clustered them into operational taxonomic units (OTUs). Read More

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http://dx.doi.org/10.1007/s00203-020-01948-2DOI Listing

Correction to: Evaluation of growth and motility in non-photosynthetic Azospirillumbrasilense exposed to red, blue, and white light.

Arch Microbiol 2020 Jun 17. Epub 2020 Jun 17.

Laboratorio de Fisiología Vegetal y de la Interacción Planta-microorganismo, Universidad Nacional de Río Cuarto, Ruta 36, Km 601, Río Cuarto, Córdoba, Argentina.

In the original article, last name and first names of all the authors are inverted. The correct names should appears as "Romina Molina, Gastón López, Belén Rodríguez, Susana Rosas, Verónica Mora, Fabricio Cassán". Read More

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http://dx.doi.org/10.1007/s00203-020-01952-6DOI Listing
June 2020
1.667 Impact Factor

Curcuma longa L. (turmeric), Rosmarinus officinalis L. (rosemary), and Thymus vulgaris L. (thyme) extracts aid murine macrophages (RAW 264.7) to fight Streptococcus mutans during in vitro infection.

Arch Microbiol 2020 Jun 13. Epub 2020 Jun 13.

Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, São Paulo State University (UNESP), Av. Engenheiro Francisco José Longo, 777, Jardim São Dimas, São José dos Campos, SP, 12245-000, Brazil.

Finding an effective alternative way to aid defense cells to fight Streptococcus mutans was the main goal of this study. The effect of plant extracts from Curcuma longa L. (turmeric), Rosmarinus officinalis L. Read More

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http://dx.doi.org/10.1007/s00203-020-01945-5DOI Listing

Influence of long-term organic and conventional fertilization on bacterial communities involved in bioelectricity production from paddy field-microbial fuel cells.

Arch Microbiol 2020 Jun 13. Epub 2020 Jun 13.

Department of Microbiology, Faculty of Science, Annamalai University, Annamalai Nagar, Chidambaram, Tamilnadu, 608002, India.

Soils are rich in organics, particularly those that support the growth of plants. These organics are possible sources of sustainable energy, and a microbial fuel cell (MFC) system can potentially be used for this purpose. In this, the soil organic content expelled from plant root was possibly converted into electrical energy through the microbial metabolic process. Read More

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http://dx.doi.org/10.1007/s00203-020-01947-3DOI Listing

The mRNA expression of ompF, invA and invE was associated with the ciprofloxacin-resistance in Salmonella.

Arch Microbiol 2020 Jun 13. Epub 2020 Jun 13.

Dalian Customs of the People's Republic of China, Dalian, 116000, China.

Salmonella developed drug-resistance under durative antibiotic pressures pressure. The widespread prevalence of Salmonella has been associated with not only drug-resistance but also pathogenicity. Outer membrane porin proteins (OMPs) are critical for the drug resistance of bacteria. Read More

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http://dx.doi.org/10.1007/s00203-020-01928-6DOI Listing

Single-nucleotide polymorphisms in a vancomycin-resistant Staphylococcus aureus strain based on whole-genome sequencing.

Arch Microbiol 2020 Jun 13. Epub 2020 Jun 13.

Division of Antimicrobial Resistance, Center for Infectious Diseases Research, National Institute of Health, Korea Centers for Disease Control and Prevention, Osong Health Technology Administration Complex, 187, Osongsaengmyeong 2-ro, Osong-eup, Heungdeok-gu, Cheongju-si, Republic of Korea.

The emergence of vancomycin-resistant Staphylococcus aureus (VRSA) threatens global health. The mechanism of vancomycin resistance of VRSA without vanA gene acquisition was not fully elucidated. Therefore, we aimed to determine the mechanism of vancomycin resistance of VRSA besides that by vanA gene acquisition. Read More

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http://dx.doi.org/10.1007/s00203-020-01906-yDOI Listing

Pexophagy modes during penicillin biosynthesis in Penicillium rubens P2-32-T.

Arch Microbiol 2020 Jun 12. Epub 2020 Jun 12.

Department of Biotechnology, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City, Mexico.

Pexophagy is a peroxisome degradation process. The last two steps of penicillin biosynthesis in Penicillium rubens are carried out in peroxisomes. These organelles proliferate in large numbers during this process, so that after the penicillin secretion, their removal is essential as a regulatory mechanism. Read More

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http://dx.doi.org/10.1007/s00203-020-01939-3DOI Listing

Population structure of Venturia inaequalis, a hemibiotrophic fungus, under different host resistance specificities in the Kashmir valley.

Arch Microbiol 2020 Jun 12. Epub 2020 Jun 12.

Plant Virology and Molecular Plant Pathology Laboratory, Division of Plant Pathology, SKUAST-Kashmir, Shalimar, Srinagar, 190025, India.

Venturia inaequalis is a notorious fungal pathogen and show classical gene for gene interaction with its apple host. Neutral markers provide clues about history, evolutionary potential, genetic diversity and population structure of V. inaequalis. Read More

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http://dx.doi.org/10.1007/s00203-020-01950-8DOI Listing

Effects of process conditions and yeast extract on the synthesis of selenium nanoparticles by a novel indigenous isolate Bacillus sp. EKT1 and characterization of nanoparticles.

Arch Microbiol 2020 Jun 12. Epub 2020 Jun 12.

Faculty of Engineering, Department of Food Engineering, Sakarya University, Serdivan, 54050, Sakarya, Turkey.

Selenium nanoparticles (SeNPs) are attractive nanomaterials for application in medical diagnosis, because their toxicities are lower than the elemental selenium which is a functional element and essential for human. In the current study, SeNPs synthesis capability of a novel soil originated indigenous Bacillus isolate was investigated. In this context, effects of processing conditions (SeO concentration, pH, temperature, and time), and yeast extract supplementation on the synthesis of SeNPs have been tested. Read More

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http://dx.doi.org/10.1007/s00203-020-01942-8DOI Listing

The UMAG_00031 gene from Ustilago maydis encodes a putative membrane protein involved in pH control and morphogenesis.

Arch Microbiol 2020 Jun 11. Epub 2020 Jun 11.

Departamento de Ingeniería Genética, Unidad Irapuato, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado Postal 629, 36500, Irapuato, Gto, Mexico.

We report the characterization of the gene UMAG_00031 from Ustilago maydis, previously identified as upregulated at alkaline pH. This gene is located on chromosome 1 and contains an ORF of 1539 bp that encodes a putative protein of 512 amino acids with an MW of 54.8 kDa. Read More

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http://dx.doi.org/10.1007/s00203-020-01936-6DOI Listing

Rapid screening of marine bacterial symbionts using MALDI-TOF MS.

Arch Microbiol 2020 Jun 11. Epub 2020 Jun 11.

Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.

Matrix-Assisted Laser Desorption Ionization Time-Of-Flight Mass Spectrometry (MALDI-TOF MS) is a rapid, cost-effective and high-throughput method for bacteria characterization. However, most previous studies focused on clinical isolates. In this study, we evaluated the use of MALDI-TOF MS as a rapid screening tool for marine bacterial symbionts. Read More

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http://dx.doi.org/10.1007/s00203-020-01917-9DOI Listing

Biodegradation of low viscosity spindle oil causing environmental pollution.

Arch Microbiol 2020 Jun 10. Epub 2020 Jun 10.

Department of Biology, College of Education for Pure Sciences, University of Anbar, Ramadi, Iraq.

Three hydrocarbon degrading microorganisms were isolated from the soil samples collected from the storage sites of low viscosity spindle oil containers and identified on the basis of morphological and biochemical characteristics as Aeromonas hydrophila, Bacillus subtilis and Staphylococcus aureus. The study has revealed high ability of these microorganisms for oil biodegradation. The results have indicated that all isolates had the potential to breakdown the hydrocarbon. Read More

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http://dx.doi.org/10.1007/s00203-020-01938-4DOI Listing

Probiotic and technological features of Enterococcus and Weissella isolates from camel milk characterised by an Argane feeding regimen.

Arch Microbiol 2020 Jun 10. Epub 2020 Jun 10.

RU Animal Production and Forage, Food Technology Laboratory, INRA, RCAR-Rabat, Institutes Rabat, PB 6570, 10101, Rabat, Morocco.

The objectives of this study were to isolate lactic acid bacteria (LAB) from a raw Moroccan camel milk collected after the incorporation of a specific Argane by-products diet, and to investigate their technological properties as well as their probiotic features. The molecular identification of the isolates indicated that they belong to Weissella confusa, Weissella cibaria or Enterococcus durans species. Our results revealed that the tested isolates have a fast acidifying ability (values ranging between 0. Read More

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http://dx.doi.org/10.1007/s00203-020-01944-6DOI Listing

Human microbiome: an academic update on human body site specific surveillance and its possible role.

Arch Microbiol 2020 Jun 10. Epub 2020 Jun 10.

Department of Microbiology, Sikkim University, Gangtok, Sikkim, 737102, India.

Human body is inhabited by vast number of microorganisms which form a complex ecological community and influence the human physiology, in the aspect of both health and diseases. These microbes show a relationship with the human immune system based on coevolution and, therefore, have a tremendous potential to contribute to the metabolic function, protection against the pathogen and in providing nutrients and energy. However, of these microbes, many carry out some functions that play a crucial role in the host physiology and may even cause diseases. Read More

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http://dx.doi.org/10.1007/s00203-020-01931-xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7284171PMC
June 2020
1.667 Impact Factor

Isolation and evaluation of the plant growth promoting rhizobacterium Bacillus methylotrophicus (DD-1) for growth enhancement of rice seedling.

Arch Microbiol 2020 Jun 10. Epub 2020 Jun 10.

School of Life Science and Agriculture and Forestry, Qiqihar University, Qiqihar, 161006, Heilongjiang, China.

Bacillus methylotrophicus has been demonstrated to promote growth of various plants, whereas the promoting effect of B. methylotrophicus on rice growth has been rarely reported. In this study, B. Read More

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http://dx.doi.org/10.1007/s00203-020-01934-8DOI Listing

Nutrient factor-dependent performance of bacterial quorum sensing system during population evolution.

Arch Microbiol 2020 Jun 10. Epub 2020 Jun 10.

Antibiotics Research and Re-Evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, No. 168, Huaguan Road, Chengdu, 610052, Sichuan, China.

Bacterial quorum sensing (QS) system regulates the production of most costly but sharable extracellular products (public goods) in a growth-phase-dependent manner, and the development of this energy-intensive process is susceptible to environmental changes. However, the role of nutrient factors in dominating the QS-mediated cooperative interaction and intracellular metabolism still remains less understood. Here we studied the performance of QS system by growing Pseudomonas aeruginosa under different nutrient and culture conditions. Read More

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http://dx.doi.org/10.1007/s00203-020-01937-5DOI Listing

Nonomuraea terrae sp. nov., isolated from arid soil.

Authors:
Hilal Ay

Arch Microbiol 2020 Jun 10. Epub 2020 Jun 10.

Department of Molecular Biology and Genetics, Faculty of Science and Arts, Ondokuz Mayis University, Samsun, Turkey.

During the course of isolating rare actinobacteria from unexplored habitats, strain CH32 was obtained from an arid soil sample in eastern Anatolia, Turkey. Polyphasic characterization and comprehensive genome analyses showed that the strain is a member of the genus Nonomuraea and it is closely related to Nonomuraea gerenzanensis ATCC 39727, Nonomuraea polychroma DSM 43925 and Nonomuraea maritima FXJ7.203 with gene identity level of 98. Read More

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http://dx.doi.org/10.1007/s00203-020-01941-9DOI Listing

Heterologous expression of azoreductase-encoding gene azrS of Bacillus sp. MR-1/2 for enhanced azo dye decolorization and wastewater treatment.

Arch Microbiol 2020 Jun 9. Epub 2020 Jun 9.

Department of Bioinformatics and Biotechnology, Government College University, Faisalabad, 38000, Pakistan.

In Pakistan, 55% of textile exports are contributed by textile-units of Faisalabad. The effluents of these textile units, being discharged without any treatment, contain the contamination of a huge amount of synthetic azo dyes. The objective of the current research was to evaluate the contribution of an azoreductase-encoding gene (azrS) from a pre-characterized azo dye decolorizing bacterial strain Bacillus sp. Read More

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http://dx.doi.org/10.1007/s00203-020-01940-wDOI Listing
June 2020
1.667 Impact Factor

A comprehensive review of metabolic and genomic aspects of PAH-degradation.

Arch Microbiol 2020 Jun 6. Epub 2020 Jun 6.

Department of Environmental Engineering, Delhi Technological University, Shahbad Daulatpur, Delhi, 110042, India.

Polyaromatic hydrocarbons (PAHs) are considered as hazardous organic priority pollutants. PAHs have immense public concern and critical environmental challenge around the globe due to their toxic, carcinogenic, and mutagenic properties, and their ubiquitous distribution, recalcitrance as well as persistence in environment. The knowledge about harmful effects of PAHs on ecosystem along with human health has resulted in an interest of researchers on degradation of these compounds. Read More

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http://dx.doi.org/10.1007/s00203-020-01929-5DOI Listing

Degradation of low-density poly ethylene (LDPE) by Enterobacter cloacae AKS7: a potential step towards sustainable environmental remediation.

Arch Microbiol 2020 Jun 6. Epub 2020 Jun 6.

Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.

Plastics composed of polyethylene are non-biodegradable and are mostly harmful to the environment. Literature studies documented that the extent of microbial degradation of low-density polyethylene (LDPE) seems to be insufficient and the underlying mechanisms of such degradation remain unexplored. In the present study, efforts were given to degrade LDPE by a recently isolated bacteria Enterobacter cloacae AKS7. Read More

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http://dx.doi.org/10.1007/s00203-020-01926-8DOI Listing

Psychroflexus maritimus sp. nov., isolated from coastal sediment.

Arch Microbiol 2020 Jun 6. Epub 2020 Jun 6.

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

A Gram-stain-negative, strictly aerobic, non-flagellated, gliding, rod-shaped bacterium, designated C1 was isolated from the coastal sediment of Xiaoshi Island, Weihai, China. Phylogenetic analysis of the 16S rRNA gene and the genome sequence of the newly isolated strain revealed that it belonged to the genus Psychroflexus within the family Flavobacteriaceae. The 16S rRNA gene sequence similarities between strain C1 and the type strains of Psychroflexus members ranged from 91. Read More

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http://dx.doi.org/10.1007/s00203-020-01933-9DOI Listing

Dissecting Streptococcus pyogenes interaction with human.

Arch Microbiol 2020 Jun 5. Epub 2020 Jun 5.

Department of Pharmacy, COMSATS University Islamabad, Lahore Campus, 54000, Pakistan.

Streptococcus pyogenes is a species of Gram-positive bacteria. It is also known as Group A Streptococcus (GAS) that causes pathogenesis to humans only. The GAS infection has several manifestations including invasive illness. Read More

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http://dx.doi.org/10.1007/s00203-020-01932-wDOI Listing

Antibacterial, anti-efflux, anti-biofilm, anti-slime (exopolysaccharide) production and urease inhibitory efficacies of novel synthesized gold nanoparticles coated Anthemis atropatana extract against multidrug- resistant Klebsiella pneumoniae strains.

Arch Microbiol 2020 Jun 4. Epub 2020 Jun 4.

Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

In this study, the antibacterial, anti-efflux, anti-biofilm, anti-slime (exopolysaccharide) production and urease inhibitory efficacies of green synthesized gold nanoparticles (AuNPs) coated Anthemis atropatana extract against multidrug- resistant (MDR) Klebsiella pneumoniae strains were evaluated. The green synthesized AuNPs were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffractometer (XRD), particle size distribution, zeta potential and Fourier-transform infrared spectroscopy (FTIR). Then, antibacterial, anti-slime (exopolysaccharide) production, anti-biofilm and anti-efflux activities of AuNPs were investigated using micro-dilation, Congored agar, microtiter plate and MIC of ethidium bromide methods, respectively. Read More

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http://dx.doi.org/10.1007/s00203-020-01930-yDOI Listing

Profiling of gene expression in methicillin-resistant Staphylococcus aureus in response to cyclo-(L-Val-L-Pro) and chloramphenicol isolated from Streptomyces sp., SUK 25 reveals gene downregulation in multiple biological targets.

Arch Microbiol 2020 Jun 3. Epub 2020 Jun 3.

Faculty of Agro-Based Industry, Universiti Malaysia Kelantan, 17600, Jeli, Kelantan, Malaysia.

Chloramphenicol (CAP) and cyclo-(L-Val-L-Pro) were previously isolated from Streptomyces sp., SUK 25 which exhibited a high potency against methicillin-resistant Staphylococcus aureus (MRSA). This study aimed to profile gene expression of MRSA treated with CAP and cyclo-(L-Val-L-Pro) compounds using DNA microarray. Read More

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http://dx.doi.org/10.1007/s00203-020-01896-xDOI Listing
June 2020
1.667 Impact Factor

An evaluation of the core bacterial communities associated with hypersaline environments in the Qaidam Basin, China.

Arch Microbiol 2020 Jun 3. Epub 2020 Jun 3.

Research Center of Basic Medical Science, Medical College, Qinghai University, Xining, 810016, Qinghai, China.

Hypersaline lakes and saltern areas are important industrial and biodiversity resources in the Qaidam Basin of China that reside at > 2600 m asl. Most hypersaline environments in this area are characterized by saturated salinity (~ 300 g/L salinity), nearly neutral pH, intense ultraviolet radiation, and extremely variable temperature fluctuations. The core bacterial communities associated with these stressful environments have nevertheless remained uninvestigated. Read More

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http://dx.doi.org/10.1007/s00203-020-01927-7DOI Listing

Effects of fungus-host associations on nucleoside differences among Ophiocordyceps sinensis populations on the Qinghai-Tibet Plateau of China.

Arch Microbiol 2020 Jun 1. Epub 2020 Jun 1.

School of Life Science and Technology, Tongji University, 1239, Siping Road, Shanghai, 200092, People's Republic of China.

Nucleosides are active components in Ophiocordyceps sinensis. All individual nucleoside contents in both fruiting and caterpillar bodies were significantly different among the 24 O. sinensis populations that are distributed across the Qinghai-Tibet Plateau of China. Read More

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http://dx.doi.org/10.1007/s00203-020-01919-7DOI Listing

Characterization and pathogenicity of fibronectin binding protein FbpI of Streptococcus intermedius.

Arch Microbiol 2020 Jun 1. Epub 2020 Jun 1.

Division of Molecular Microbiology, Department of Microbiology, Iwate Medical University, 1-1-1 Idaidori, Yahaba-cho, Shiwa-gun, Iwate, 028-3694, Japan.

Streptococcus intermedius is a causative agent of brain or liver abscesses. S. intermedius produces intermedilysin that plays a pivotal role in pathogenicity. Read More

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http://dx.doi.org/10.1007/s00203-020-01922-yDOI Listing

Dynamic changes of microbiota and texture properties during the ripening of traditionally prepared cheese of China.

Arch Microbiol 2020 Jun 2. Epub 2020 Jun 2.

College of Food Science and Engineering, Ocean University of China, Qingdao, 266100, Shandong, China.

The dynamic changes of microbiota assessed by high-throughput sequencing and texture properties of handmade cheese were investigated during ripening time. Streptococcus and Lactococcus were found to be the most predominant genera. The proportion of Streptococcus was decreased from 48 to 32% and the proportion of Lactococcus was increased from 41 to 55% with ripening time from 1 to 120 days. Read More

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http://dx.doi.org/10.1007/s00203-020-01921-zDOI Listing

Diverse bioactive metabolites from Penicillium sp. MMA derived from the red sea: structure identification and biological activity studies.

Arch Microbiol 2020 May 31. Epub 2020 May 31.

Division of Pharmaceutical Industries, Chemistry of Natural Compounds Department, National Research Centre, El-Buhouth St. 33, Dokki-Cairo, 12622, Egypt.

A soft coral-derived fungus Penicillium sp. among other isolates e high antibacterial, anti-yeast and cytotoxic activities. The fungus, Penicillium sp. Read More

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http://dx.doi.org/10.1007/s00203-020-01923-xDOI Listing
May 2020
1.667 Impact Factor

Streptomyces diastaticus isolated from the marine crustacean Portunus sanguinolentus with potential antibiofilm activity against Candida albicans.

Arch Microbiol 2020 May 31. Epub 2020 May 31.

Department of Microbiology, Bharathidasan University, Tiruchirappalli, 620024, Tamil Nadu, India.

Biofilm-mediated multidrug resistance has turned into major challenge for the treatment of C. albicans infections. In the present study, actinomycetes (SS5) isolated from marine crustacean were investigated for their ability to inhibit C. Read More

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http://dx.doi.org/10.1007/s00203-020-01918-8DOI Listing
May 2020
1.667 Impact Factor