42,243 results match your criteria g+c content


Methylobrevis albus sp. nov., isolated from freshwater lake sediment.

Arch Microbiol 2021 Jun 21. Epub 2021 Jun 21.

Marine College, Shandong University, Weihai, 264209, People's Republic of China.

An aerobic, Gram-stain-negative, rod-shaped bacterium with flagellum, designated L22, was isolated from sediment of Hulun Lake, Inner Mongolia, China. The organism was found to grow optimally at 30° C in a medium containing 0-0.75% (w/v) NaCl at pH 7. Read More

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sp. nov., an airborne bacterium isolated from King George Island, Antarctica.

Int J Syst Evol Microbiol 2021 Jun;71(6)

Laboratorio de Ecología Microbiana Medioambiental, Facultad de Química y Unidad Asociada del Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay.

A rod-shaped and Gram-stain-negative bacterial strain 9A, was isolated from an air sample collected at King George Island, maritime Antarctica. Phylogenetic analysis based on 16S rRNA gene sequence reveals that strain 9A belongs to the genus and shows the highest similarity to CCM 8649 (96.8 %). Read More

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pH Changes in the Micelle-Water Interface of Surface-Active Ionic Liquids Dictate the Stability of Encapsulated Curcumin: An Insight Through a Unique Interfacial Reaction between Arenediazonium Ions and -Butyl Hydroquinone.

ACS Omega 2021 Jun 3;6(23):14985-15000. Epub 2021 Jun 3.

Soft Matter Research Group, Department of Chemistry, University of Kashmir, Hazratbal, Srinagar 190006, Jammu and Kashmir, India.

The chemical kinetic (CK) method, which involves the reduction of 4-hexadecylbenzenediazonium ions (16-ArN) by antioxidants (in the present case, TBHQ) occurring exclusively at the interface of the association colloids, was employed to establish the changes in the chemical reactivity of anionic surface-active ionic liquids (SAILs) as a function of the concentration and the composition in their mixed states. We used sodium dodecyl sulfate and different SAILs based on the dodecylsulfate surfactant containing 1-alkyl-3-methylimidazolium cations as counterions having a varying alkyl chain length of 4 (bmim), 8 (omim), and 12 (ddmim) carbon atoms. The structural transitions of aggregates of the SAILs from the micellar to vesicular form were observed as a function of concentration in single surfactant systems and as a function of composition in mixed surfactant systems. Read More

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The complete mitochondrial genome of sp.1 (Teleostei, Platycephalidae) obtained by whole genome sequencing.

Mitochondrial DNA B Resour 2021 Jun 7;6(7):1941-1943. Epub 2021 Jun 7.

Fisheries College, Zhejiang Ocean University, Zhoushan, China.

In this study, we used next-generation sequencing to obtain the complete mitochondrial genome of sp.1. This mitochondrial genome, consisting of 16,552 base pairs (bp), contains 13 protein-coding genes, two ribosomal RNAs, 22 transfer RNAs, and two non-coding control regions (control region and origin of light-strand replication) as those found in other vertebrates. Read More

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Effects of short-term calorie restriction on circulating DPP-4/sCD26 concentrations and body composition in patients with type 2 diabetes.

Diabetol Int 2021 Jul 3;12(3):286-292. Epub 2021 Jan 3.

Department of Diabetes, Endocrinology and Hematology, Dokkyo Medical University Saitama Medical Center, 2-1-50, Minami--Koshigaya, Koshigaya, Saitama 343-8555 Japan.

Previous studies have shown that dipeptidyl peptidase (DPP)-4, is released from adipocytes in a differentiation-dependent manner and a marker for insulin resistance in obese individuals who have particularly high circulating DPP-4/soluble CD26 (sCD26) concentrations. In this study, we have evaluated the effects of short-term hospitalization with calorie restriction on body composition and circulating DPP-4/sCD26 concentrations in patients with type 2 diabetes. A total of 47 Japanese adults with type 2 diabetes were recruited to the study (age; 56. Read More

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Draft genome of strain 4T19 isolated from cotton-waste composts for mushroom cultivation.

New Microbes New Infect 2021 Jul 8;42:100894. Epub 2021 May 8.

Aix-Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France.

In this article, we present the draft genome sequence of strain 4T19 (= CSUR Q2603  = DSM 17723 = JCM 16399 = KACC 11279), that is a new species isolated from cotton-waste composts The genome sequence from strain 4T19 was assembled into 462 contigs for a total size of 4,987,608 bp with a G + C content of 35.5%. Read More

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Gut Bacterial Diversity in Different Life Cycle Stages of (Hemiptera: Miridae).

Front Microbiol 2021 2;12:670383. Epub 2021 Jun 2.

State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China.

Bacteria and insects have a mutually beneficial symbiotic relationship. Bacteria participate in several physiological processes such as reproduction, metabolism, and detoxification of the host. is considered a pest by the agricultural industry and is now a major pest in cotton, posing a serious threat to agricultural production. Read More

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A Conjugative MDR pMG1-Like Plasmid Carrying the (E) Gene of With Potential Transmission to .

Front Microbiol 2021 4;12:667415. Epub 2021 Jun 4.

State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.

(E) is a pleuromutilin, lincosamide, and streptogramin A (PLSA phenotype) resistance gene that was first described in and was thought to have been transferred from sp. This study aimed to elucidate the prevalence of the (E) gene among isolates at a tertiary teaching hospital and to evaluate the transferability of the (E) gene from to . A total of 96 strains isolated from one hospital in Beijing in 2013 were analysed for quinupristin-dalfopristin (QDA) resistance genes, and multilocus sequence typing (MLST) was performed. Read More

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Pontibaca salina sp. nov., isolated from marine sediment.

Arch Microbiol 2021 Jun 19. Epub 2021 Jun 19.

Marine College, Shandong University, Weihai, 264209, Shandong, People's Republic of China.

A Gram-stain-negative, oval or short rod-shaped, non-motile, aerobic bacterium, designated strain S1109L, was isolated from a marine sediment in Weihai, PR China. Cells were oxidase positive and catalase positive. Growth of strain S1109L occurred at 10-40 °C (optimum, 30-33 °C), pH 6. Read More

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Genome assembly and annotation of Photorhabdus heterorhabditis strain ETL reveals genetic features involved in pathogenicity with its associated entomopathogenic nematode and anti-host effectors with biocontrol potential applications.

Gene 2021 Jun 17:145780. Epub 2021 Jun 17.

Department of Biotechnology and Food Technology, Faculty of Science, University of Johannesburg, Doornfontein Campus, 2028, South Africa. Electronic address:

The genome sequences of entomopathogenic nematode (EPN) bacteria and their functional analyses can lead to the genetic engineering of the bacteria for use as biocontrol agents. The bacterial symbiont Photorhabdus heterorhabditis strain ETL isolated from an insect pathogenic nematode, Heterorhabditis zealandica strain ETL, collected in the northernmost region of South Africa was studied to reveal information that can be useful in the design of improvement strategies for both effective and liquid production method of EPN-based pesticides. The strain ETL genome was found closely related to the type strain genome of P. Read More

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Devosia sediminis sp. nov., isolated from subterranean sediment.

Arch Microbiol 2021 Jun 19. Epub 2021 Jun 19.

College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China.

A novel Gram-negative, cream-colored, rod-shaped, aerobic, non-motile bacterium, designated MSA67, was isolated from a subterranean sediment sample of the Mohe Basin in Northeast China. Strain MSA67 was detected to grow at 4-40 °C (optimum 28-30 °C), pH 5.0-10. Read More

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An acid-base molecular assembly strategy toward N-doped [email protected] nanowires with mesoporous MoC cores and ultrathin carbon shells for efficient hydrogen evolution.

J Colloid Interface Sci 2021 Jun 8;602:520-533. Epub 2021 Jun 8.

Particle Engineering Laboratory, School of Chemical and Environmental Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu 215123, China. Electronic address:

Molybdenum carbides are promising electrocatalysts for the hydrogen evolution reaction (HER). Rational design of morphology, composition and interfacial structure in MoC materials is essential to enhance their HER performance. Herein, an acid-base molecular assembly strategy is demonstrated for the synthesis of novel N-doped [email protected] core-shell nanowires (NWs) composed of mesoporous MoC cores with interconnected crystalline walls and ultrathin carbon shells. Read More

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The kinesin of the flagellum attachment zone in Leishmania is required for cell morphogenesis, cell division and virulence in the mammalian host.

PLoS Pathog 2021 Jun 18;17(6):e1009666. Epub 2021 Jun 18.

Research Unit "MiVEGEC", University of Montpellier, CNRS, IRD, Academic Hospital (CHU) of Montpellier, Montpellier, France.

Leishmania parasites possess a unique and complex cytoskeletal structure termed flagellum attachment zone (FAZ) connecting the base of the flagellum to one side of the flagellar pocket (FP), an invagination of the cell body membrane and the sole site for endocytosis and exocytosis. This structure is involved in FP architecture and cell morphogenesis, but its precise role and molecular composition remain enigmatic. Here, we characterized Leishmania FAZ7, the only known FAZ protein containing a kinesin motor domain, and part of a clade of trypanosomatid-specific kinesins with unknown functions. Read More

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[Analysis of capability to pertussis etiology and serological diagnosis for GradeⅡ and Ⅲmedical institutions in Shandong Province in 2018].

Zhonghua Yu Fang Yi Xue Za Zhi 2021 Jun;55(6):727-731

Institute of Immunization and Prevention, Shandong Center for Disease Control and Prevention, Jinan 250014, China.

Investigate and analyze the etiology and serological diagnosis capabilities of pertussis in medical institutions in Shandong Province in 2018. Using the census method, a questionnaire survey was conducted among 603 second and above level medical institutions in Shandong Province. The deadline for the survey was December 2018, and a total of 543 questionnaires have been recovered, and the validity rate of the questionnaires was 90%. Read More

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Binding Force and Site-Determined Desorption and Fragmentation of Antibiotic Resistance Genes from Metallic Nanomaterials.

Environ Sci Technol 2021 Jun 17. Epub 2021 Jun 17.

Department of Environmental Science, Zhejiang University, Hangzhou 310058, China.

Interfacial interactions between antibiotic resistance genes (ARGs) and metallic nanomaterials (NMs) lead to adsorption and fragmentation of ARGs, which can provide new avenues for selecting NMs to control ARGs. This study compared the adsorptive interactions of ARGs (-carrying plasmids) with two metallic NMs (ca. 20 nm), i. Read More

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Complete Genome Sequence of Polycladomyces abyssicola JIR-001, Isolated from Hemipelagic Sediment in Deep Seawater.

Microbiol Resour Announc 2021 Jun 17;10(24):e0043521. Epub 2021 Jun 17.

Department of Bacteriology, Osaka City University, Graduate School of Medicine, Abeno, Osaka, Japan.

Here, we report the complete genome sequence of Polycladomyces abyssicola strain JIR-001, which we isolated from hemipelagic sediment in deep seawater. The genome, generated by combining long-read (Flongle) and short-read (NovaSeq) sequencing data, is 3,197,230 bp, with a mean G+C content of 52.0%. Read More

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Flavobacterium difficile sp. nov., isolated from a freshwater waterfall.

Arch Microbiol 2021 Jun 16. Epub 2021 Jun 16.

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

A bacterial strain designated KDG-16 is isolated from a freshwater waterfall in Taiwan and characterized to determine its taxonomic affiliation. Cells of strain KDG-16 are Gram-stain-negative, strictly aerobic, motile by gliding, rod-shaped and form light yellow colonies. Optimal growth occurs at 20-25 °C, pH 6-7, and with 0% NaCl. Read More

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sp. nov. a novel actinobacterium isolated from the coral .

Int J Syst Evol Microbiol 2021 Jun;71(6)

Key Laboratory of Tropical Biological Resources of the Ministry of Education of China, Hainan University, Haikou 570228, PR China.

Strain HNM0947, representing a novel actinobacterium, was isolated from the coral collected from the coast of Wenchang, Hainan, China. The strain was found to have morphological and chemotaxonomic characteristics consistent with the genus . The organism formed abundant fragmented substrate mycelia and aerial mycelia which differentiated into non-motile, rod-shaped spores. Read More

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Description of sp. nov., based on phylogenomic analysis.

Int J Syst Evol Microbiol 2021 Jun;71(6)

Department of Biotechnology, Institute of Life Sciences, Nalco Square, Bhubaneswar - 751023, India.

A novel strain of a member of the genus strain PS-1, was isolated from the skin of fresh water pufferfish () collected from Mahanadi River, India. Cells were Gram-stain-negative, aerobic, coccoid and non-motile. The predominant polar lipids were diphosphatidylglycerol (DPG), phosphatidylglycerol (PG), phosphatidylethanolamine (PE) and phospholipid (PL) and the cell wall sugars were glucose, galactose and ribose. Read More

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Structure-mechanics statistical learning unravels the linkage between local rigidity and global flexibility in nucleic acids.

Chem Sci 2020 Apr 23;11(19):4969-4979. Epub 2020 Apr 23.

Institute of Bioinformatics and Systems Biology, Department of Biological Science and Technology, Institute of Molecular Medicine and Bioengineering, National Chiao Tung University Hsinchu Taiwan 30068 Republic of China +886 3 5712121 ext. 56996.

The mechanical properties of nucleic acids underlie biological processes ranging from genome packaging to gene expression, but tracing their molecular origin has been difficult due to the structural and chemical complexity. We posit that concepts from machine learning can help to tackle this long-standing challenge. Here, we demonstrate the feasibility and advantage of this strategy through developing a structure-mechanics statistical learning scheme to elucidate how local rigidity in double-stranded (ds)DNA and dsRNA may lead to their global flexibility in bend, stretch, and twist. Read More

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sp. nov., isolated from swine faeces.

Int J Syst Evol Microbiol 2021 Jun;71(6)

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

An obligately anaerobic, Gram-positive, non-motile, coccus-shaped bacterial strain designated AGMB00490 was isolated from swine faeces. 16S rRNA gene sequence-based phylogenetic analysis indicated that the isolate belongs to the genus and that the most closely related species is WAL 10418 (=KCTC 5947, 97.22 % 16S rRNA gene sequence similarity). Read More

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Nutritional properties and health aspects of pulses and their use in plant-based yogurt alternatives.

Compr Rev Food Sci Food Saf 2021 Jun 14. Epub 2021 Jun 14.

School of Food and Nutritional Sciences, University College Cork, Cork, Ireland.

Plant-based yogurt alternatives are increasing in market value, while dairy yogurt sales are stagnating or even declining. The plant-based yogurt alternatives market is currently dominated by products based on coconut or soy. Coconut-based products especially are often low in protein and high in saturated fat, while soy products raise consumer concerns regarding genetically modified soybeans, and soy allergies are common. Read More

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Detection of suspected carcinogen azo dyes in textiles using thermogravimetric analysis.

J Environ Sci Health A Tox Hazard Subst Environ Eng 2021 Jun 14:1-6. Epub 2021 Jun 14.

Department of Chemistry, Texas Southern University, Houston, Texas, USA.

Textiles that are in direct contact with human skin are problematic due to the possibility of transferring the dyes or their aromatic amine metabolites through direct contact. 18 samples of women underwear panties of different colors and fabrics materials were examined for their content of azo dyes using thermogravimetric-gas chromatography-mass spectrometry (TGA-GCMS) technique. The nature of fabrics (cotton, nylon, and polyesters) was identified based on their unique thermogravimetric analyses (TGA) pattern. Read More

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The complete mitogenome of Matsumura (Diptera: Chloropidae).

Mitochondrial DNA B Resour 2021 Jun 3;6(7):1844-1846. Epub 2021 Jun 3.

College of Plant Protection, Southwest University, Chongqing, China.

Matsumura is an important pest of rice plants throughout Asia, and has even become a major pest in some regions. Here, we present the complete mitogenome of for the first time. The complete mitogenome is 17,313 bp in length and contains 37 genes (13 protein-coding genes, 22 transfer RNAs, and two ribosomal RNAs) and a control region. Read More

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The complete mitochondrial genome of (Linnaeus, 1767) (Neuroptera: Hemerobiidae: Microminae) with phylogenetic analysis.

Mitochondrial DNA B Resour 2021 Jun 3;6(7):1842-1843. Epub 2021 Jun 3.

Department of Entomology, China Agricultural University, Beijing, China.

The complete mitochondrial (mt) genome of (Linnaeus, 1767) (Neuroptera: Hemerobiidae: Microminae) was assembled and the phylogenetic analysis of Chrysopoidea was conducted. The mt genome was 16,607 bp long including 13 protein-coding genes (PCGs), 22 tRNA genes, 2 rRNA genes, and a control region (CR). Twelve PCGs started with typical ATN, but initiated with TCG. Read More

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The complete chloroplast genome sequence of (Benth.) S. Moore. (Asteraceae).

Mitochondrial DNA B Resour 2021 Jun 3;6(7):1834-1836. Epub 2021 Jun 3.

Kunming Medical University Haiyuan College, Kunming, China.

The complete chloroplast (cp) genome of was sequenced and assembled for the first time. In this study, the total genome size is 150,596 bp in length and demonstrates a typical quadripartite structure containing a large single copy (LSC, 82,575 bp) and a small single copy (SSC, 18,293 bp), separated by a pair of inverted repeats (IRa, IRb) of 24,864 bp. The G + C content of this cp genome was 37. Read More

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The complete chloroplast genome sequence of (Verbenaceae).

Mitochondrial DNA B Resour 2021 Jun 3;6(7):1832-1833. Epub 2021 Jun 3.

College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao, China.

In this study, the complete chloroplast (cp) genome of was assembled using Illumina sequencing data. The complete cp genome is 149,869 bp in length, including a pair of invert repeats (IRA and IRB) regions of 22,839 bp, large single-copy (LSC) region of 86,201 bp, and small single-copy (SSC) region of 17,990 bp. The G + C content of this cp genome was 38. Read More

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Sequencing and analysis of the complete mitochondrial genome of from China and its phylogenetic analysis.

Mitochondrial DNA B Resour 2021 May 31;6(7):1805-1807. Epub 2021 May 31.

College of Life Science and Technology, Mudanjiang Normal University, Mudanjiang, PR China.

The complete mitogenome sequence of was determined using long PCR. The genome was 17,063 bp in length and contained 13 protein-coding genes, two ribosomal RNA genes, 22 transfer RNA genes, one origin of L strand replication, and one control region. The overall base composition of the heavy strand is A (31. Read More

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One-step dynamic fabrication of asymmetric multi-layered porous films for sustained drug delivery.

Chem Commun (Camb) 2021 Jun 14. Epub 2021 Jun 14.

Department of Materials Science and Engineering, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, 315211, China. and State Key Laboratory Base of Novel Functional Materials and Preparation Science, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China.

Asymmetric multi-layered porous films were prepared by casting inverse emulsion following the breath figure method. The porous morphologies both on the surface and in the bulk of the fabricated film could be dynamically manipulated by tuning the emulsion composition as well as the environmental conditions. The model drug was efficiently loaded into the porous film by direct encapsulation during film fabrication, and remarkable sustained drug release from the porous film for more than 28 days was achieved. Read More

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Linking genomic and physiological characteristics of psychrophilic Arthrobacter to metagenomic data to explain global environmental distribution.

Microbiome 2021 Jun 12;9(1):136. Epub 2021 Jun 12.

School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, 2052, China.

Background: Microorganisms drive critical global biogeochemical cycles and dominate the biomass in Earth's expansive cold biosphere. Determining the genomic traits that enable psychrophiles to grow in cold environments informs about their physiology and adaptive responses. However, defining important genomic traits of psychrophiles has proven difficult, with the ability to extrapolate genomic knowledge to environmental relevance proving even more difficult. Read More

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