4,495 results match your criteria Archives of microbiology[Journal]


Identification and characterization of the S-layer formed on the sheath of Thiothrix nivea.

Arch Microbiol 2018 Jun 22. Epub 2018 Jun 22.

Graduate School of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya, Yokohama, 240-8501, Japan.

Thiothrix nivea is a filamentous sulfur-oxidizing bacterium common in activated sludge and its filament is covered with a polysaccharide layer called sheath. In this study, we found that T. nivea aggregates under acidic conditions. Read More

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Tackling maize fusariosis: in search of Fusarium graminearum biosuppressors.

Arch Microbiol 2018 Jun 22. Epub 2018 Jun 22.

Food Security and Safety Niche Area, Faculty of Agriculture, Science and Technology, North-West University, Private Bag X2046, Mmabatho, 2735, South Africa.

This review presents biocontrol agents employed to alleviate the deleterious effect of the pathogen Fusarium graminearum on maize. The control of this mycotoxigenic phytopathogen remains elusive despite the elaborate research conducted on its detection, identification, and molecular fingerprinting. This could be attributed to the fact that in vitro and greenhouse biocontrol studies on F. Read More

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Antioxidant activity and induction of mechanisms of resistance to stresses related to the inoculation with Azospirillum brasilense.

Arch Microbiol 2018 Jun 7. Epub 2018 Jun 7.

Embrapa Soja, Cx. Postal 231, Londrina, Paraná, 86001-970, Brazil.

We investigated the effects of Azospirillum brasilense strains Ab-V5 and Ab-V6 in the induction of mechanisms of systemic acquired resistance (SAR) and induced system resistance (ISR) on maize (Zea mays L.) plants. Under normal growth conditions, the treatments consisted of the standard inoculation of cells at sowing, and leaf spray of cells or their metabolites at the V2. Read More

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Pseudoruegeria litorisediminis sp. nov., a novel lipolytic bacterium of the family Rhodobacteraceae isolated from a tidal flat.

Arch Microbiol 2018 Jun 7. Epub 2018 Jun 7.

Department of Food Science and Biotechnology, Sungkyunkwan University, Jangan-gu, Suwon, Republic of Korea.

A lipolytic bacterial strain, designated BPTF-M5, was isolated from a tidal flat sediment of the Yellow Sea in Republic of Korea, and identified by a polyphasic taxonomic approach. It was Gram negative, aerobic, non-motile and rod shaped. Strain BPTF-M5 grew optimally at 30 °C and in the presence of 2. Read More

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June 2018
4 Reads

Zhongshania ponticola sp. nov., a novel lipolytic bacterium of the class Gammaproteobacteria isolated from seawater.

Arch Microbiol 2018 Jun 7. Epub 2018 Jun 7.

Department of Food Science and Biotechnology, Sungkyunkwan University, Jangan-gu, Suwon, Republic of Korea.

A bacterial strain, designated GM-8, which was isolated from seawater around Pohang in Republic of Korea, was subjected to a polyphasic taxonomic study. It was lipolytic, Gram-stain-negative, aerobic, non-motile and coccoid, ovoid, or rod-shaped. Strain GM-8 grew optimally at 30 °C and in the presence of 2. Read More

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June 2018
1 Read

Hymenobacter segetis sp. nov., isolated from soil.

Arch Microbiol 2018 Jun 6. Epub 2018 Jun 6.

School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea.

A polyphasic taxonomic study was performed on a novel strain designated as S7-3-11, which was isolated from soil of the Gyeongsangnam-do province in Republic of Korea. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain S7-3-11 belongs to the genus Hymenobacter and is most closely related to Hymenobacter ruber PB156 (97.9%), Hymenobacter daeguensis 16F3Y-2 (97. Read More

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Description of Lacinutrix salivirga sp. nov., a marine member of the family Flavobacteriaceae isolated from seawater.

Arch Microbiol 2018 Jun 5. Epub 2018 Jun 5.

Korean Collection for Type Cultures, Korea Research Institute of Bioscience and Biotechnology, 181 Ipsin-gil, Jeongeup-si, Jeollabuk-do, 56212, Republic of Korea.

A novel marine bacterium, designated KMU-57, was isolated from seawater collected from the Republic of Korea, and it was characterized using polyphasic taxonomic methods. Strain KMU-57 was Gram-stain-negative, strictly aerobic, rod-shaped, motile and dark-yellow-pigmented. Comparative analysis based on the 16S rRNA gene sequence showed the affiliation of the isolate with members of the family Flavobacteriaceae of the phylum Bacteroidetes, and it had the greatest sequence similarity (97. Read More

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June 2018
1 Read

Paraburkholderia panacihumi sp. nov., an isolate from ginseng-cultivated soil, is antagonistic against root rot fungal pathogen.

Arch Microbiol 2018 Jun 5. Epub 2018 Jun 5.

Department of Oriental Medicinal Biotechnology, College of Life Science, Kyung Hee University, Seocheon-dong, Giheung-gu, Yongin, Gyeonggi, 446-701, Republic of Korea.

The novel species DCY115 was isolated from ginseng-cultivated soil in Gochang province, Republic of Korea. The isolated strain was assigned to the genus Paraburkholderia due to its 16S rRNA gene sequence proximity to Paraburkholderia xenovorans LB400 (98.8%), Paraburkholderia terricola LMG 20594 (98. Read More

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Sphingobium tyrosinilyticum sp. nov., a tyrosine hydrolyzing bacterium isolated from Korean radish garden.

Arch Microbiol 2018 Jun 4. Epub 2018 Jun 4.

Department of Food and Nutrition, College of Biotechnology and Natural Resource, Chung-Ang University, Anseong-si, Gyeonggi-do, 17546, Republic of Korea.

A yellow-pigmented novel bacterial strain, MAH-12, was isolated from a soil sample of Korean radish garden and was characterized using a polyphasic approach. Cells were Gram-staining negative, non-motile and rod-shaped. The strain was aerobic, catalase positive, optimum growth temperature and pH were 28-30 °C and 6. Read More

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The program of antiviral agents inhibits virus infection.

Arch Microbiol 2018 May 30. Epub 2018 May 30.

State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, Gansu, China.

Virus infections are the root cause of epidemics in the world. Vaccines and antiviral agents have been the two important methods to control viral diseases; in recent times, RNA-mediated therapeutics and prevention have received much attention. In this review, we provide an overview of the current information regarding the use of vaccines, antiviral agents, and RNA-mediated methods in controlling or preventing viral infections. Read More

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Fictibacillus iocasae sp. nov., isolated from the deep-sea sediment in Pacmanus, Manus Basin.

Arch Microbiol 2018 May 25. Epub 2018 May 25.

Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao, 266071, China.

A novel bacterium, designed strain S38, was isolated from the deep-sea sediment of Pacmanus hydrothermal field in Manus Basin. The isolate was gram-positive, aerobic, motile, and was defined by endospore-forming rods. Strain S38 grew at 16-38 °C, pH 6-8, and in the presence of 0-7% (w/v) NaCl. Read More

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Diversity and evolution of Lactobacillus casei group isolated from fermented dairy products in Tibet.

Arch Microbiol 2018 May 25. Epub 2018 May 25.

Key Laboratory of Dairy Science, Ministry of Education, College of Food Science and Engineering, Northeast Agricultural University, Harbin, 150030, People's Republic of China.

Bacteria in Lactobacillus casei group, including Lactobacillus casei (L. casei), Lactobacillus paracasei (L. paracasei), and Lactobacillus rhamnosus (L. Read More

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Production of N-acyl homoserine lactones by Chromobacterium haemolyticum KM2 isolated from the river water in Malaysia.

Arch Microbiol 2018 May 23. Epub 2018 May 23.

International Genome Centre, Jiangsu University, Zhenjiang, China.

Quorum sensing (QS) is a term used to describe cell-to-cell communication that enables bacteria to orchestrate group behaviours according to density of bacterial cells. In Gram-negative bacteria, this signalling system is widely known to regulate a variety of different phenotypes such as antibiotic production and biofilm formation. In this study, we report the production of N-acyl homoserine lactones produced by Chromobacterium haemolyticum strain KM2, a bacterium isolated from a river water of a reserved tropical national park. Read More

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Inhibition of sialidase activity and cellular invasion by the bacterial vaginosis pathogen Gardnerella vaginalis.

Arch Microbiol 2018 May 18. Epub 2018 May 18.

Integrated BioSciences Group, School of Clinical Dentistry, University of Sheffield, Sheffield, S10 2TA, UK.

Bacterial vaginosis is a genital tract infection, thought to be caused by transformation of a lactobacillus-rich flora to a dysbiotic microbiota enriched in mixed anaerobes. The most prominent of these is Gardnerella vaginalis (GV), an anaerobic pathogen that produces sialidase enzyme to cleave terminal sialic acid residues from human glycans. Notably, high sialidase activity is associated with preterm birth and low birthweight. Read More

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Analysis of resistance genes of clinical Pannonibacter phragmitetus strain 31801 by complete genome sequencing.

Arch Microbiol 2018 May 14. Epub 2018 May 14.

Department of Clinical Laboratory, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, 362000, Fujian, China.

To clarify the resistance mechanisms of Pannonibacter phragmitetus 31801, isolated from the blood of a liver abscess patient, at the genomic level, we performed whole genomic sequencing using a PacBio RS II single-molecule real-time long-read sequencer. Bioinformatic analysis of the resulting sequence was then carried out to identify any possible resistance genes. Analyses included Basic Local Alignment Search Tool searches against the Antibiotic Resistance Genes Database, ResFinder analysis of the genome sequence, and Resistance Gene Identifier analysis within the Comprehensive Antibiotic Resistance Database. Read More

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Changes in intestinal microbiota of Bufo gargarizans and its association with body weight during metamorphosis.

Arch Microbiol 2018 May 10. Epub 2018 May 10.

College of Life Sciences, Shaanxi Normal University, Xi'an, 710119, People's Republic of China.

The assembly of intestinal microbial communities can play major roles in animal development. We hypothesized that intestinal microbial communities could mirror the developmental programs of amphibian metamorphosis. Here, we surveyed the morphological parameters of the body and intestine of Bufo gargarizans at varying developmental stages and inventoried the intestinal microbial communities of B. Read More

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May 2018
2 Reads

Effect of global transcriptional regulators on kinetic behavior of Escherichia coli under anaerobic fermentation conditions.

Arch Microbiol 2018 May 10. Epub 2018 May 10.

Department of Chemical Engineering, Indian Institute of Technology, Bombay, Mumbai, 400076, India.

The phenotype of Escherichia coli is governed by global transcriptional regulators under variable environmental conditions. Fnr, ArcA, IhfA-B, Crp, and Fis are amongst the major global transcription regulators that change their activity across the range of aeration, hence forming the core transcriptional network responsible for survival under changing aeration conditions. Effect of deletion of these global transcription factors on the kinetics of cell growth and mixed acid production under anaerobic fermentation conditions has not been characterized. Read More

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May 2018
4 Reads

Molecular insights into the activity and mechanism of cyanide hydratase enzyme associated with cyanide biodegradation by Serratia marcescens.

Arch Microbiol 2018 May 9. Epub 2018 May 9.

Department of Biotechnology, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow, Uttar Pradesh, 226025, India.

The present study provides molecular insights into the activity and mechanism of cyanide hydratase enzyme associated with degradation of cyanide compounds, using Serratia marcescens RL2b as a model organism. Resting cells harvested after 20 h achieved complete degradation of 12 mmol l cyanide in approximately 10 h. High-performance liquid chromatography analysis of reaction samples revealed formation of formamide as the only end product, which confirmed the presence of cyanide hydratase activity in S. Read More

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May 2018
4 Reads

The transmembrane domain of the Staphylococcus aureus ESAT-6 component EssB mediates interaction with the integral membrane protein EsaA, facilitating partially regulated secretion in a heterologous host.

Arch Microbiol 2018 May 8. Epub 2018 May 8.

Department of Microbiology and Immunology, Faculty of Pharmacy and Pharmaceutical Industries, Sinai University, El-Masaeed, El-Arish, North Sinai, Egypt.

The ESAT-6-like secretion system (ESS) of Staphylococcus aureus plays a significant role in persistent infections. EssB is a highly conserved bitopic ESS protein comprising a cytosolic N-terminus, single transmembrane helix and a C-terminus located on the trans-side of the membrane. Six systematic truncations covering various domains of EssB were constructed, followed by bacterial two-hybrid screening of their interaction with EsaA, another conserved integral membrane component of the ESS pathway. Read More

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Dyadobacter flavus sp. nov. and Dyadobacter terricola sp. nov., two novel members of the family Cytophagaceae isolated from forest soil.

Arch Microbiol 2018 May 8. Epub 2018 May 8.

Department of Life Science, College of Natural Sciences, Kyonggi University, Suwon, Gyeonggi-Do, 16227, South Korea.

Two strains of bacteria designated strains S-53 and A27 were isolated from forest soil and subjected to polyphasic characterization. Cells were aerobic, Gram-staining-negative, catalase- and oxidase- positive, non-motile, non-spore-forming, rod-shaped, and yellow-pigmented. Flexirubin-type pigments were present. Read More

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May 2018
1.67 Impact Factor

Antioxidant enzymes and reactive oxygen species level of the Achromobacter xylosoxidans bacteria during hydrocarbons biotransformation.

Arch Microbiol 2018 Apr 23. Epub 2018 Apr 23.

Southern Federal University, Stachki, 194/1, Rostov-on-Don, 344090, Russia.

The level of catalase and superoxide dismutase induction, as well as generation of superoxide anion radical in cells and accumulation of hydrogen peroxide in the culture medium were researched in three strains of oil-degrading bacteria Achromobacter xylosoxidans at cultivation in rich nutrient medium and in the media with hydrocarbons as the only source of carbon. The effects of pentane, decane, hexadecane, cyclohexane, benzene, naphthalene and diesel fuel were evaluated. It was determined that in the microbial cell on media with hydrocarbons, the generation of superoxide anion radical increases, accumulation of hydrogen peroxide and induction of superoxide dismutase synthesis occur, and catalase activity is reduced. Read More

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Paenibacillus panacihumi sp. nov., a potential plant growth-promoting bacterium isolated from ginseng-cultivated soil.

Arch Microbiol 2018 Apr 20. Epub 2018 Apr 20.

Department of Oriental Medicinal Biotechnology, Kyung Hee University, Seocheon-dong, Giheung-gu, Yongin-si, Gyeonggi-do, 446-701, Republic of Korea.

A novel bacterium, designated DCY114, was isolated from ginseng-cultivated soil in Gochang-gun, Republic of Korea. This isolate was assigned to the genus Paenibacillus and is closely related to Paenibacillus amylolyticus NRRL NRS-290 (98.3%), P. Read More

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April 2018
2 Reads

Whole-genome sequence and genome annotation of Xanthomonas citri pv. mangiferaeindicae, causal agent of bacterial black spot on Mangifera indica.

Arch Microbiol 2018 Jul 17;200(5):835-840. Epub 2018 Apr 17.

Southern Subtropical Crops Research Institute, Chinese Academy of Tropical Agricultural Sciences, Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture, Zhanjiang, Guangdong, China.

A newly isolated strain XC01 was identified as Xanthomonas citri pv. mangiferaeindicae, isolated from an infected mango fruit in Guangxi, China. The complete genome sequence of XC01 was carried out using the PacBio RSII platform. Read More

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July 2018
2 Reads

Cyanotrophic and arsenic oxidizing activities of Pseudomonas mendocina P6115 isolated from mine tailings containing high cyanide concentration.

Arch Microbiol 2018 Apr 11. Epub 2018 Apr 11.

Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prol. de Carpio y Plan de Ayala s/n. Col. Sto. Tomás, 11340, Cd. México, Mexico.

Mine tailings and wastewater generate man-made environments with several selective pressures, including the presence of heavy metals, arsenic and high cyanide concentrations, but severe nutritional limitations. Some oligotrophic and pioneer bacteria can colonise and grow in mine wastes containing a low concentration of organic matter and combined nitrogen sources. In this study, Pseudomonas mendocina P6115 was isolated from mine tailings in Durango, Mexico, and identified through a phylogenetic approach of 16S rRNA, gyrB, rpoB, and rpoD genes. Read More

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April 2018
1 Read

Efficient methanol-degrading aerobic bacteria isolated from a wetland ecosystem.

Arch Microbiol 2018 Jul 10;200(5):829-833. Epub 2018 Apr 10.

Environmental Biology Laboratory, Rajiv Gandhi Centre for Biotechnology, Poojappura, Thiruvananthapuram, 695014, Kerala, India.

Methylotrophs present in the soil play an important role in the regulation of one carbon compounds in the environment, and thereby aid in mitigating global warming. The study envisages the isolation and characterization of methanol-degrading bacteria from Kuttanad wetland ecosystem, India. Three methylotrophs, viz. Read More

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July 2018
1 Read

Strand-specific RNA-seq analysis of the Acidithiobacillus ferrooxidans transcriptome in response to magnesium stress.

Arch Microbiol 2018 Apr 10. Epub 2018 Apr 10.

Institute of Microbiology, School of Life Sciences, Lanzhou University, Tianshui Road No. 222, Lanzhou, 730000, People's Republic of China.

Bioleaching is a promising process for 350 million tons Jinchuan low-grade pentlandite. But, Jinchuan pentlandite has lots of magnesium and high concentration of Mg is harmful to bioleaching microorganisms. Thus, finding a way to improve the adaption of microorganisms to Mg is a key for bioleaching. Read More

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April 2018
1 Read

Luteibacter pinisoli sp. nov., a casein degrading bacterium isolated from rhizospheric soil of Pinus koraiensis.

Arch Microbiol 2018 Apr 10. Epub 2018 Apr 10.

Department of Food and Nutrition, College of Biotechnology and Natural Resource, Chung-Ang University, Anseong-si, Gyeonggi-do, 17546, Republic of Korea.

A yellow pigmented, Gram-staining negative, motile and rod-shaped novel bacterial strain, designated MAH-14 was isolated from rhizospheric soil and was characterized using a polyphasic approach. The isolated strain was aerobic, oxidase and catalase were positive, optimum growth temperature and pH were 28-30 °C and 6.5, respectively. Read More

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April 2018
1 Read

Rapid molecular identification and differentiation of common Salmonella serovars isolated from poultry, domestic animals and foodstuff using multiplex PCR assay.

Arch Microbiol 2018 Apr 7. Epub 2018 Apr 7.

Department of Microbiology and Immunology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.

Salmonella is widely distributed throughout the world and can be found in poultry industry, animal breeding centers, food and feedstuffs of all geographical regions. This study was conducted to determine and identify Salmonella serovars isolated from poultry, calves and foodstuffs (poultry and animals products such as egg and meat). A total of one hundred isolates of Salmonella serovars including Salmonella Typhimurium, Salmonella Enteritidis, Salmonella Infantis, Salmonella Gallinarum and Salmonella Pullorum consecutively were subjected to the conventional culture, biochemical and serological assays. Read More

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April 2018
1 Read

Smoking and the intestinal microbiome.

Arch Microbiol 2018 Jul 6;200(5):677-684. Epub 2018 Apr 6.

Sackler School of Medicine, Ramat Aviv, Israel.

Studies are emerging alluding to the role of intestinal microbiome in the pathogenesis of diseases. Intestinal microbiome is susceptible to the influence of environmental factors such as smoking, and recent studies have indicated microbiome alterations in smokers. The aim of the study was to review the literature regarding the impact of smoking on the intestinal microbiome. Read More

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July 2018
2 Reads

In vitro antibacterial activity of plant essential oils against Staphylococcus hyicus and Staphylococcus aureus, the causative agents of exudative epidermitis in pigs.

Arch Microbiol 2018 Apr 5. Epub 2018 Apr 5.

Oral Ecology Research Group (GREB), Faculty of Dentistry, Laval University, 2420 rue de la Terrasse, Quebec City, QC, G1V 0A6, Canada.

Greasy pig disease or exudative epidermitis, a generalized or localized skin disease affecting piglets, is mainly caused by Staphylococcus hyicus, although other staphylococcal species such as Staphylococcus aureus may also induce disease. Piglets with skin lesions can be treated systemically with antibiotics. However, antimicrobial resistance to β-lactam antibiotics are now frequently observed in S. Read More

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April 2018
1 Read

Prodigiosin pigment of Serratia marcescens is associated with increased biomass production.

Arch Microbiol 2018 Apr 3. Epub 2018 Apr 3.

The Charles T. Campbell Laboratory, Department of Ophthalmology, University of Pittsburgh Eye Center and School of Medicine, 203 Lothrop St., Pittsburgh, PA, 15213, USA.

Serratia marcescens is a gram-negative, facultatively-anaerobic bacterium and opportunistic pathogen which produces the red pigment prodigiosin. We employed both batch culture and chemostat growth methods to investigate prodigiosin function in the producing organism. Pigmentation correlated with an increased rate of ATP production during population lag phase. Read More

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April 2018
2 Reads

Polyunsaturated fatty acids from Phyllocaulis boraceiensis mucus block the replication of influenza virus.

Arch Microbiol 2018 Apr 3. Epub 2018 Apr 3.

Respiratory Infectious Diseases, Adolfo Lutz Institute, 355th, Doutor Arnaldo Ave, São Paulo, SP, Brazil.

Influenza viruses cause worldwide outbreaks and pandemics in humans and animals every year with considerable morbidity and mortality. The molecular diversity of secondary metabolites extracted from mollusks is a good alternative for the discovery of novel bioactive compounds with unique structures and diverse biological activities. Phyllocaulis boraceiensis is a hermaphroditic slug that exudes mucus, in which was detected hydroxy polyunsaturated fatty acids that exhibited potent antiviral activity against measles virus. Read More

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April 2018
1 Read

Antibacterial potential of secondary metabolites produced by Aspergillus sp., an endophyte of Mitrephora wangii.

Arch Microbiol 2018 Apr 2. Epub 2018 Apr 2.

School of Science, Mae Fah Luang University, 333 moo 1 Thasud, Muang, Chiang Rai, 57100, Thailand.

Mitrephora wangii, an ethnomedicinal plant, has been used as a natural antibiotic and immunity booster in Thailand. A total of 22 fungi were isolated from M. wangii flowers. Read More

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April 2018
6 Reads

The diversity of sulfate-reducing bacteria in the seven bioreactors.

Arch Microbiol 2018 Apr 2. Epub 2018 Apr 2.

Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 753/5, 62500, Brno, Czech Republic.

Anaerobic technology has a wide scope of application in different areas such as manufacturing, food industry, and agriculture. Nowadays, it is mainly used to produce electrical and thermal energy from crop processing, solid waste treatment or wastewater treatment. More intensively, trend nowadays is usage of this technology biodegradable and biomass waste processing and biomethane or hydrogen production. Read More

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April 2018
3 Reads

Agromyces mangrovi sp. nov., a novel actinobacterium isolated from the rhizosphere of a mangrove.

Arch Microbiol 2018 Mar 26. Epub 2018 Mar 26.

Biological Resource Center, National Institute of Technology and Evaluation (NBRC), 2-5-8 Kazusakamatari, Kisarazu, Chiba, 292-0818, Japan.

A novel actinobacterium, designated HIr16-25, was isolated from the rhizosphere soil of a mangrove growing on Iriomote Island in Japan. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain HIr16-25 fell within the cluster of the members of the genus Agromyces and the highest sequence similarity value was observed with Agromyces rhizospherae IFO 16236 (98.6%). Read More

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March 2018
1 Read

Insights into the human oral microbiome.

Arch Microbiol 2018 May 23;200(4):525-540. Epub 2018 Mar 23.

Division of Biological Sciences and Engineering, Netaji Subhas Institute of Technology, New Delhi, India.

Human oral cavity harbors the second most abundant microbiota after the gastrointestinal tract. The expanded Human Oral Microbiome Database (eHOMD) that was last updated on November 22, 2017, contains the information of approximately 772 prokaryotic species, where 70% is cultivable, and 30% belong to the uncultivable class of microorganisms along with whole genome sequences of 482 taxa. Out of 70% culturable species, 57% have already been assigned to their names. Read More

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May 2018
1 Read

Antibacterial activity of monoacetylated alkyl gallates against Xanthomonas citri subsp. citri.

Arch Microbiol 2018 Mar 10. Epub 2018 Mar 10.

Departamento de Bioquímica e Microbiologia, Instituto de Biociências, Universidade Estadual Paulista, Av. 24A, 1515, Rio Claro, SP, 13506-900, Brazil.

Asiatic citrus canker (ACC) is an incurable disease of citrus plants caused by the Gram-negative bacterium Xanthomonas citri subsp. citri (X. citri). Read More

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March 2018
1 Read

The growth-promoting effects of endophytic bacteria on Phyllostachys edulis.

Arch Microbiol 2018 Mar 10. Epub 2018 Mar 10.

College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China.

The research results of the growth-promoting effects of endophytic bacteria on Phyllostachys edulis indicated that the growth-promoting endophytic bacteria could improve photosynthesis in P. edulis leaves. The photosynthetic rate, transpiration rate, and the stomatal conductance in P. Read More

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March 2018
2 Reads

Neisseria zalophi sp. nov., isolated from oral cavity of California sea lions (Zalophus californianus).

Arch Microbiol 2018 Jul 5;200(5):819-828. Epub 2018 Mar 5.

Laboratory of Method Development, Center for Biologics Evaluation and Research, The US Food and Drug Administration, 10903 New Hampshire Avenue, Building 52, Room 1120, Silver Spring, MD, 20993-0002, USA.

Three independent strains of Neisseria sp. were isolated from the oral cavity of California sea lions (Zalophus californianus) that were admitted to The Marine Mammal Center facilities in California, USA. The strains were isolated from oral swabs by cultivation on Trypticase Soy agar with 5% sheep blood under aerobic conditions. Read More

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July 2018
3 Reads

Molecular identification of fungal isolates and hatching success of green turtle (Chelonia mydas) nests.

Arch Microbiol 2018 Feb 26. Epub 2018 Feb 26.

Biotechnology Section, Department of Biology, Faculty of Science, Hacettepe University, Ankara, Turkey.

The aim of this study is to investigate the fungal diversity of green turtle nests and to examine phylogenetic relationships among these isolates. During the nesting season, samples of intra-nest sand and failed eggs were collected from 25% of the surviving nests in Sugözü Beaches, which are amongst the most important nesting beaches for endangered green turtles in the Mediterranean. Twenty-three fungi were identified by molecular techniques. Read More

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February 2018
1 Read

IcmF and DotU are required for the virulence of Acidovorax oryzae strain RS-1.

Arch Microbiol 2018 Feb 24. Epub 2018 Feb 24.

State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China.

Acidovorax oryzae (Ao) cause bacterial brown stripe in rice that result in great economic loss. However, the pathogenic mechanism of this rice bacterial pathogen still remains unclear. Interestingly, transcriptomic and proteomic analysis of in vivo infection indicate that the pathogenicity of Ao strain RS-1 may be associated with the type six secretion system (T6SS), which was identified by in silico comparative genomic analysis in our previous studies. Read More

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February 2018
1 Read

Evaluation of the chitin-binding dye Congo red as a selection agent for the isolation, classification, and enumeration of ascomycete yeasts.

Authors:
Tomas Linder

Arch Microbiol 2018 May 23;200(4):671-675. Epub 2018 Feb 23.

Department of Molecular Sciences, Swedish University of Agricultural Sciences, Box 7015, 750 07, Uppsala, Sweden.

Thirty-nine strains of ascomycete yeasts representing 35 species and 33 genera were tested for their ability to grow on solid agar medium containing increasing concentrations of the chitin-binding dye Congo red. Six strains were classified as hypersensitive (weak or no growth at 10 mg/l Congo red), five were moderately sensitive (weak or no growth at 50 mg/l), three were moderately tolerant (weak or no growth at 100 mg/l), while the remaining 25 strains were classified as resistant (robust growth at ≥ 100 mg/l) with 20 of these strains classified as hyper-resistant (robust growth at 200 mg/l). Congo red growth phenotypes were consistent within some families but not others. Read More

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May 2018
1 Read

Mechanism of arsenic resistance in endophytic bacteria isolated from endemic plant of mine tailings and their arsenophore production.

Arch Microbiol 2018 Feb 23. Epub 2018 Feb 23.

Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Prolongación Carpio y Plan de Ayala s/n, Col. Santo Tomás, Del. Miguel Hidalgo, C.P. 11340, Mexico City, Mexico.

Arsenic contamination is an important environmental problem around the world since its high toxicity, and bacteria resist to this element serve as valuable resource for its bioremediation. Aiming at searching the arsenic-resistant bacteria and determining their resistant mechanism, a total of 27 strains isolated from roots of Prosopis laevigata and Spharealcea angustifolia grown in a heavy metal-contaminated region in Mexico were investigated. The minimum inhibitory concentration (MIC) and transformation abilities of arsenate (As) and arsenite (As), arsenophore synthesis, arsenate uptake, and cytoplasmatic arsenate reductase (arsC), and arsenite transporter (arsB) genes were studied for these strains. Read More

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February 2018
3 Reads

Paucibacter aquatile sp. nov. isolated from freshwater of the Nakdong River, Republic of Korea.

Arch Microbiol 2018 Feb 21. Epub 2018 Feb 21.

Freshwater Bioresources Culture Research Bureau, Nakdonggang National Institute of Biological Resources (NNIBR), 137, Donam 2-gil, Sangju-si, Gyeongsangbuk-do, 37242, Republic of Korea.

A Gram-negative, aerobic, motile, and rod-shaped bacterial strain designated CR182 was isolated from freshwater of the Nakdong River, Republic of Korea. Optimal growth conditions for this novel strain were found to be: 25-30 °C, pH 6.5-8. Read More

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February 2018
2 Reads

Varying susceptibility of clinical and environmental Scedosporium isolates to chemical oxidative stress in conidial germination.

Arch Microbiol 2018 Apr 20;200(3):517-523. Epub 2018 Feb 20.

Groupe d'Etude des Interactions Hôte-Pathogène (EA 3142), Institut de Biologie en Santé-IRIS, CHU, UNIV Angers, UNIV Brest, Université Bretagne-Loire, 4 rue Larrey, 49933, Angers, France.

Scedosporium species are opportunistic pathogens causing a great variety of infections in both immunocompetent and immunocompromised individuals. The Scedosporium genus ranks the second among the filamentous fungi colonizing the airways of patients with cystic fibrosis (CF), after Aspergillus fumigatus, and most species are capable to chronically colonize the respiratory tract of these patients. Nevertheless, few data are available regarding evasion of the inhaled conidia to the host immune response. Read More

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April 2018
8 Reads

Taxonomic structure and function of seed-inhabiting bacterial microbiota from common reed (Phragmites australis) and narrowleaf cattail (Typha angustifolia L.).

Arch Microbiol 2018 Feb 17. Epub 2018 Feb 17.

School of Resources and Environmental Engineering, Anhui University, Hefei, 230601, China.

The present study investigated the endophytic bacterial communities in the seeds of mature, natural common reed (Phragmites australis) and narrowleaf cattail (Typha angustifolia L.). Additionally, seed endophytic bacterial communities were compared with rhizospheric and root endophytic bacterial communities using Illumina-based sequencing. Read More

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February 2018
4 Reads

Genotyping of Candidatus Syngnamydia salmonis (chlamydiales; Simkaniaceae) co-cultured in Paramoeba perurans (amoebozoa; Paramoebidae).

Arch Microbiol 2018 Feb 17. Epub 2018 Feb 17.

Department of Biology, University of Bergen, Thormohlensgt 55, 5020, Bergen, Norway.

Candidatus Syngnamydia salmonis (Chlamydiales, Simkaniaceae) was described as an epitheliocystis-causing bacterium from the gills of Atlantic salmon (Salmo salar) in Norway. A bacterium showing 99.2% 16S rRNA identity to Cand. Read More

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February 2018
1 Read

Aquincola amnicola sp. nov., isolated from a freshwater river.

Arch Microbiol 2018 Jul 13;200(5):811-817. Epub 2018 Feb 13.

Department of Marine Biotechnology, National Kaohsiung Marine University, No. 142, Hai-Chuan Rd. Nan-Tzu, Kaohsiung, 811, Taiwan.

Strain TTM-94, isolated from a water sample taken from the Caohu River in Taiwan, was characterized using a polyphasic taxonomic approach. Cells of strain TTM-94 were Gram-staining-negative, aerobic, poly-β-hydroxybutyrate-accumulating, motile by a single polar flagellum, short rod-shaped and surrounded by a thick capsule and it formed cream colored colonies. Growth occurred at 20-30 °C (optimum, 30 °C), at pH 6. Read More

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July 2018
2 Reads

An overview of lectin-glycan interactions: a key event in initiating fungal infection and pathogenesis.

Arch Microbiol 2018 Apr 13;200(3):371-382. Epub 2018 Feb 13.

Department of Studies in Biochemistry, Karnatak University, Dharwad, India.

Infections due to microfungi are of serious concern in many parts of the world. Many species of microfungi are known to cause systemic infection in human beings. Pathogenic microorganisms employ various molecular strategies for colonizing a susceptible host. Read More

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April 2018
2 Reads

Draft genome of the fungicidal biological control agent Burkholderia anthina strain XXVI.

Arch Microbiol 2018 Jul 10;200(5):803-810. Epub 2018 Feb 10.

Centro de Investigación y de Estudios Avanzados-IPN (CINVESTAV), Irapuato, Guanajuato, Mexico.

Burkholderia anthina XXVI is a rhizosphere bacterium isolated from a mango orchard in Mexico. This strain has a significant biological control activity against the causal agent of mango anthracnose, Colletotrichum gloeosporioides, likely through the production of siderophores and other secondary metabolites. Here, we present a draft genome sequence of B. Read More

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July 2018
1 Read