8,857 results match your criteria dna-dna hybridization


Microbacterium helvum sp. nov., a novel actinobacterium isolated from cow dung.

Arch Microbiol 2021 Apr 16. Epub 2021 Apr 16.

Key Laboratory of Agricultural Microbiology of Heilongjiang Province, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin, 150030, People's Republic of China.

A Gram-positive, aerobic, non-motile, non-spore-forming, short rod-shaped strain, NEAU-LLC, was isolated from cow dung in Shangzhi City, Heilongjiang Province, Northeast China and identified by a polyphasic taxonomic study. Colonies was light yellow, round, with entire margin. Strain NEAU-LLC was grown at 15-45 ℃ and pH 6. Read More

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Halomonas maris sp. nov., a moderately halophilic bacterium isolated from sediment in the southwest Indian Ocean.

Arch Microbiol 2021 Apr 15. Epub 2021 Apr 15.

Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, China.

A halophilic, Gram-staining-negative, rod-shaped, flagellated and motile bacterium, strain QX-1, was isolated from deep-sea sediment at a depth of 3332 m in the southwestern Indian Ocean. Strain QX-1 growth was observed at 4-50 °C (optimum 37 °C), pH 5.0-11. Read More

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Clinical, microbiological, and immunological effects of systemic probiotics in periodontal treatment: study protocol for a randomized controlled trial.

Trials 2021 Apr 15;22(1):283. Epub 2021 Apr 15.

Department of Periodontology, Dental Research Division, Centro de Pós-Graduação e Pesquisa-CEPPE, Guarulhos University, Praça Tereza Cristina, 229 Centro, Guarulhos, SP, 07023-070, Brazil.

Background: The association of scaling and root planing (SRP) with systemic metronidazole (MTZ) plus amoxicillin (AMX) has shown to be an effective treatment protocol, particularly for periodontitis stages III and IV, generalized. More recently, probiotics have also been suggested as a promising adjunctive treatment for periodontal diseases due to their antimicrobial and anti-inflammatory properties. Therefore, the aim of this randomized clinical trial (RCT) is to evaluate the clinical, microbiological, and immunological effects of probiotics as adjuncts to SRP alone or with MTZ+AMX in the treatment of periodontitis. Read More

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sp. nov., isolated from stream water in the Republic of Korea.

Int J Syst Evol Microbiol 2021 Apr;71(4)

Department of Life Science, Graduate School, Kyonggi University, 154-42 Gwanggyosan-ro Yeongtong-gu, Suwon-si, Gyeonggi-do 16227, Republic of Korea.

A novel bacterial strain, EJ-4, isolated from stream water collected at Seo-ho in Suwon, Republic of Korea, was characterized based on a polyphasic taxonomic approach. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain EJ-4 belonged to the genus . The isolate is Gram-stain-negative, non-motile, aerobic, rod-shaped and forms pale yellow colonies on trypticase soy agar. Read More

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sp. nov., isolated from blood of an immunocompromised patient.

Int J Syst Evol Microbiol 2021 Apr;71(4)

Department of Laboratory Medicine, Chung-Ang University College of Medicine, Seoul, Republic of Korea.

A novel Gram-stain-negative, facultative aerobic and rod-shaped bacterium, designated as MKL-01 and isolated from the blood of immunocompromised patient, was genotypically and phenotypically characterized. The colonies were found to be creamy yellow and convex. Phylogenetic analysis based on 16S rRNA gene and whole-genome sequences revealed that strain MKL-01 was most closely related to LMG 5886, present within a large cluster in the genus . Read More

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gen. nov., sp. nov., a novel marine bacterium isolated from a bacterial consortium that degrades polyethylene terephthalate.

Int J Syst Evol Microbiol 2021 Apr;71(4)

Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources of China, State Key Laboratory Breeding Base of Marine Genetic Resources, Fujian Key Laboratory of Marine Genetic Resources, Xiamen 361005, PR China.

A novel Gram-stain-negative, aerobic, gliding, rod-shaped and carotenoid-pigmented bacterium, designated A20-9, was isolated from a microbial consortium of polyethylene terephthalate enriched from a deep-sea sediment sample from the Western Pacific. Growth was observed at salinities of 1-8 %, at pH 6.5-8 and at temperatures of 10-40 °C. Read More

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Microbulbifer hainanensis sp. nov., a moderately halopilic bacterium isolated from mangrove sediment.

Antonie Van Leeuwenhoek 2021 Apr 12. Epub 2021 Apr 12.

College of Food and Pharmaceutical Sciences, Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, Ningbo University, Ningbo, 315800, People's Republic of China.

A new bacterium was successfully isolated from a mangrove sediment sample in Haikou City, Hainan Province, China. The organism is a Gram-negative, rod-shaped, non-motile and strictly aerobic bacterium, named NBU-8HK146. Strain NBU-8HK146 was able to grow at temperatures of 10-40 °C, at salinities of 0-11% (w/v) and at pH 5. Read More

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Rhizobium flavescens sp. nov., Isolated from a Chlorothalonil-Contaminated Soil.

Curr Microbiol 2021 Apr 11. Epub 2021 Apr 11.

Department of Microbiology, Key Lab of Microbiology for Agricultural Environment, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China.

A Gram-negative, facultative anaerobic, non-lagellated and rod-shaped bacterium FML-4 was isolated from a chlorothalonil-contaminated soil in Nanjing, China. Phylogenetic analyses of 16S rRNA genes revealed that the strain FML-4 shared the highest sequence similarity of 97.1% with Ciceribacter thiooxidans KCTC 52231, followed by Rhizobium rosettiformans CCM 7583 (97. Read More

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sp. nov., isolated from the pod of soybean, .

Int J Syst Evol Microbiol 2021 Apr;71(4)

Medical Laser Research Center, Dankook University, Cheonan 31116, Republic of Korea.

Soybean pods, separated and enclosed from the outside environment, are considered a suitable place to find new microbes. A Gram-stain-negative, aerobic bacterium, bacterial strain (YB22) was isolated from the pod of (soybean) collected from a rural area in Republic of Korea and characterized by using polyphasic taxonomy. Cells of the strain were rod-shaped (approximately 0. Read More

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sp. nov., isolated from charcoal.

Int J Syst Evol Microbiol 2021 Apr;71(4)

Institut für Mikrobiologie, Veterinärmedizinische Universität, A-1210 Wien, Austria.

A beige-pigmented, oxidase-positive bacterial isolate, Wesi-4, isolated from charcoal in 2012, was examined in detail by applying a polyphasic taxonomic approach. Cells of the isolates were rod shaped and Gram-stain negative. Examination of the 16S rRNA gene sequence of the isolate revealed highest sequence similarities to the type strains of and (both 97. Read More

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Inhella proteolytica sp. nov. and Inhella gelatinilytica sp. nov., two novel species of the genus Inhella isolated from aquaculture water.

Arch Microbiol 2021 Apr 8. Epub 2021 Apr 8.

Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Guangdong Open Laboratory of Applied Microbiology, Guangdong Microbial Culture Collection Center (GDMCC), Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, People's Republic of China.

The two novel bacterial strains designated 1Y17 and 4Y10 from aquaculture water were characterized using a polyphasic taxonomic approach. Phylogenetic analysis of 16S rRNA gene sequences revealed that strains 1Y17 and 4Y10 belonged to the genus Inhella and were close to Inhella crocodyli CCP-18, Inhella inkyongensis IMCC1713 and Inhella fonticola TNR-25. Strains 1Y17 and 4Y10 shared 98. Read More

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Thalassobius aquimarinus sp. nov., isolated from the Sea of Japan seashore.

Arch Microbiol 2021 Apr 8. Epub 2021 Apr 8.

G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, Prospect 100 Let Vladivostoku, 159, Vladivostok, 690022, Russia.

An aerobic, Gram-negative, non-pigmented non-motile bacterium designed КMM 8518 was isolated from a seawater sampled from the Sea of Japan seashore. Strain КMM 8518 grew at 7-42 °C and in the presence of 1-7% NaCl. The phylogenetic analyses based on 16S rRNA gene and whole-genome sequences placed the novel strain КMM 8518 into the genus Thalassobius as a separate lineage. Read More

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Aquabacterium terrae sp. nov., isolated from soil.

Arch Microbiol 2021 Apr 7. Epub 2021 Apr 7.

Department of Biological Science, College of Science and Engineering, Sangji University, Wonju, 26339, Republic of Korea.

A yellow-colored bacterial strain, designated S2 was isolated from soil in South Korea. Cells of strain S2 were strictly aerobic, Gram-stain-negative, motile with single polar flagellum, rod-shaped, oxidase and catalase-negative. Growth occurs at 10-37 °C (optimum, 28 °C), pH 5. Read More

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Isolation and Description of sp. nov., a Novel Species, Isolated from a Stable Periodontitis Subject.

Pathogens 2021 Mar 19;10(3). Epub 2021 Mar 19.

Ecole de Médecine Dentaire, Faculté des Sciences Médicales et Paramédicales, Aix-Marseille Université, 27 boulevard Jean Moulin, 13385 Marseille, France.

The genus currently counts a unique species, , isolated from periodontal pockets and associated with periodontitis and endodontic infections. This study contributed to the taxonomical and clinical knowledge of this genus by describing a novel species isolated from a saliva sample from a man in clinical gingival health following successful treatment of periodontitis. Morphological and chemotaxonomic characteristics were investigated using different growth conditions, pH, and temperature. Read More

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Genome-based classification of the Streptomyces violaceusniger clade and description of Streptomyces sabulosicollis sp. nov. from an Indonesian sand dune.

Antonie Van Leeuwenhoek 2021 Apr 2. Epub 2021 Apr 2.

School of Natural and Environmental Sciences, Newcastle University, Ridley Building 2, Newcastle upon Tyne, NE1 7RU, UK.

A polyphasic study was designed to determine the taxonomic provenance of a strain, isolate PRKS01-29, recovered from an Indonesian sand dune and provisionally assigned to the Streptomyces violaceusniger clade. Genomic, genotypic and phenotypic data confirmed this classification. The isolate formed an extensively branched substrate mycelium which carried aerial hyphae that differentiated into spiral chains of rugose ornamented spores, contained LL-as the wall diaminopimelic acid, MK-9 (H, H) as predominant isoprenologues, phosphatidylethanolamine as the diagnostic phospholipid and major proportions of saturated, iso- and anteiso- fatty acids. Read More

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Brachybacterium halotolerans sp. nov., a halotolerant, endophytic actinomycete isolated from branch of Bruguiera gymnoirhiza.

Antonie Van Leeuwenhoek 2021 Apr 1. Epub 2021 Apr 1.

Life Sciences Institute, Zunyi Medical University, Zunyi, 563006, People's Republic of China.

A novel, aerobic, moderately halophilic Gram-positive actinomycete, strain MASK1Z-5 was isolated from a surface-sterilized branch of Bruguiera gymnoirhiza in Shankou Mangrove Nature Reserve, Guangxi, China. The taxonomic position of the strain was investigated using a polyphasic approach. Strain MASK1Z-5 tolerated up to 20% (w/v) NaCl (optimum 0-7%), and grew at pH 5. Read More

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Ruegeria haliotis sp. nov., Isolated from the Gut of the Abalone Haliotis rubra.

Curr Microbiol 2021 Apr 1. Epub 2021 Apr 1.

State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, People's Republic of China.

A Gram-stain-negative, aerobic, non-motile, white-pigmented, short rod-shaped, and alginate-degrading bacterium, designated B1Z28, was isolated from the gut of the abalone Haliotis rubra obtained at Weihai, China. Strain B1Z28 was found to grow at 4-35 °C, pH 6.5-9. Read More

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sp. nov., Isolated From the International Space Station.

Front Microbiol 2021 15;12:639396. Epub 2021 Mar 15.

Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States.

Four strains belonging to the family of were isolated from different locations on the International Space Station (ISS) across two consecutive flights. Of these, three were identified as Gram-negative, rod-shaped, catalase-positive, oxidase-positive, motile bacteria, designated as IF7SW-B2, IIF1SW-B5, and IIF4SW-B5, whereas the fourth was identified as . The sequence similarity of these three ISS strains, designated as IF7SW-B2, IIF1SW-B5, and IIF4SW-B5, was <99. Read More

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Streptomyces liangshanensis sp. nov., a novel actinomycete isolated from rhizosphere soil of Fagopyrum tataricum.

Arch Microbiol 2021 Mar 30. Epub 2021 Mar 30.

School of Life Science, Hunan University of Science and Technology, Xiangtan, 411201, People's Republic of China.

A novel actinomycete strain, designated strain QMT-12, was isolated from the rhizospheric soils of Fagopyrum tataricum and characterized using a polyphasic approach. Strain QMT-12 was found to have morphological features typical of the genus Streptomyces. The predominant fatty acids included C cis9 (35. Read More

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Tritonibacter aquimaris sp. nov. and Tritonibacter litoralis sp. nov., two novel members of the Roseobacter group isolated from coastal seawater.

Antonie Van Leeuwenhoek 2021 Mar 29. Epub 2021 Mar 29.

State Key Laboratory of Microbial Technology, Institute of Marine Science and Technology, Marine Biotechnology Research Center, Shandong University, Qingdao, 266237, China.

Two Gram-stain-negative bacterial strains, SM1969 and SM1979, were isolated from coastal surface seawater of Qingdao, China. They were taxonomically characterized by the phylogenetic, genomic, chemotaxonomic and phenotypic analyses. The two strains shared 97. Read More

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Streptomyces typhae sp. nov., a novel endophytic actinomycete with antifungal activity isolated the root of cattail (Typha angustifolia L.).

Antonie Van Leeuwenhoek 2021 Mar 27. Epub 2021 Mar 27.

Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, Harbin, 150030, China.

A novel endophytic actinomycete with antagonistic activity against various phytopathogenic fungi, designated strain p1417, was isolated from the root of cattail (Typha angustifolia L.) collected from Yunnan Province, Southwest China. A polyphasic taxonomic study was carried out to establish the taxonomic status of this strain. Read More

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Metabolic activity of hydro-carbon-oxo-borate on a multispecies subgingival periodontal biofilm: a short communication.

Clin Oral Investig 2021 Mar 28. Epub 2021 Mar 28.

Department of Periodontology and Oral Implantology, Dental Research Division, Guarulhos University, Praça Tereza Cristina, 88, Centro, Guarulhos, SP, 07023-070, Brazil.

Objective: This study evaluated the metabolic activity of hydro-carbon-oxo-borate complex (HCOBc) on a multispecies subgingival biofilm as well as its effects on cytotoxicity.

Materials And Methods: The subgingival biofilm with 32 species related to periodontitis was formed in the Calgary Biofilm Device (CBD) for 7 days. Two different therapeutic schemes were adopted: (1) treatment with HCOBc, 0. Read More

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Sphingopyxis microcysteis sp. nov., a novel bioactive exopolysaccharides-bearing Sphingomonadaceae isolated from the Microcystis phycosphere.

Antonie Van Leeuwenhoek 2021 Mar 26. Epub 2021 Mar 26.

Department of Marine Chemistry, Zhejiang Ocean University, Zhoushan, China.

During the study into the microbial biodiversity and bioactivity of the Microcystis phycosphere, a new yellow-pigmented, non-motile, rod-shaped bacterium containing polyhydroxybutyrate granules designated as strain Z10-6 was isolated from highly-toxic Microcystis aeruginosa Kützing M.TN-2. The new isolate produces active bioflocculating exopolysaccharides. Read More

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Aquiflexum lacus sp. nov., isolated from a lake sediment sample.

Arch Microbiol 2021 Mar 24. Epub 2021 Mar 24.

State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, People's Republic of China.

A novel Gram-staining negative, crescent-like or rod-shaped, non-motile bacterium, designated strain CUG 91378, was isolated from a sediment sample of Qinghai Lake, Qinghai Province, China. The strain was red-colored, and catalase- and oxidase-positive. Strain CUG 91378 was able to grow at 15-37 °C (optimum, 28 °C), pH 7-9 (pH 7. Read More

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Iodidimonas gelatinilytica sp. nov., aerobic iodide-oxidizing bacteria isolated from brine water and surface seawater.

Antonie Van Leeuwenhoek 2021 May 24;114(5):625-631. Epub 2021 Mar 24.

Graduate School of Horticulture, Chiba University, 648 Matsudo, Matsudo, Chiba, Japan.

Chemo-organotrophic iodide (I)-oxidizing bacterial strains Hi-2 and Mie-1 were isolated from iodide-rich natural gas brine water in Chiba and surface seawater in Mie, Japan, respectively. Cells of strains Hi-2 and Mie-1 were aerobic, Gram-negative and rod-shaped (0.3-0. Read More

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Genome insight and description of antibiotic producing Massilia antibiotica sp. nov., isolated from oil-contaminated soil.

Sci Rep 2021 Mar 23;11(1):6695. Epub 2021 Mar 23.

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

An ivory-coloured, motile, Gram-stain-negative bacterium, designated TW-1 was isolated from oil-contaminated experimental soil in Kyonggi University. The phylogenetic analysis based on 16S rRNA gene sequence revealed, strain TW-1 formed a lineage within the family Oxalobacteraceae and clustered as members of the genus Massilia. The closest members were M. Read More

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Micromonospora veneta sp. nov., an endophytic actinobacterium with potential for nitrogen fixation and for bioremediation.

Arch Microbiol 2021 Mar 22. Epub 2021 Mar 22.

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

Strain CAP181, an endophytic actinobacterium, was isolated from a surface sterilized root sample of a native pine tree, Flinders University, Adelaide, South Australia. Chemotaxonomic data including cell wall components, major fatty acids, and major menaquinones confirmed the affiliation of strain CAP181 to the genus Micromonospora. This strain was Gram stain positive with well-developed substrate mycelia to form a single spore with hairy surface. Read More

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Combined characterization of a new member of Marivita cryptomonadis strain LZ-15-2 isolated from cultivable phycosphere microbiota of highly toxic HAB dinoflagellate Alexandrium catenella LZT09.

Braz J Microbiol 2021 Mar 19. Epub 2021 Mar 19.

ABI Group of GPM Project, Department of Marine Chemistry, College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, 316022, China.

During our conveying the microbial structures of phycosphere microbiota (PM) derived from diverse marine harmful algal bloom (HAB) dinoflagellates, a new rod-sharped, white-colored cultivable bacterial strain, designated as LZ-15-2, was isolated from the PM of highly toxic Alexandrium catenella LZT09. Phylogenetic analysis of 16S rRNA gene sequence indicated that strain LZ-15-2 belonged to the genus Marivita within the family Rhodobacteraceae, and demonstrated the highest gene similarity of 99.2% to M. Read More

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Sulfurimonas sediminis sp. nov., a novel hydrogen- and sulfur-oxidizing chemolithoautotroph isolated from a hydrothermal vent at the Longqi system, southwestern Indian ocean.

Antonie Van Leeuwenhoek 2021 Mar 19. Epub 2021 Mar 19.

Department of Bioengineering and Biotechnology, College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China.

A novel marine hydrogen- and sulfur-oxidizing bacterium, designated strain S2-6, was isolated from the deep-sea sediment samples at the Longqi hydrothermal system, southwestern Indian Ocean. Cells were Gram-stain-negative, motile, short rods with a single polar flagellum. Growth was observed at 10-45 °C (optimum 33 °C), pH 5. Read More

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sp. nov., isolated from an inland brine spring in Northern England.

Int J Syst Evol Microbiol 2019 Jun 19;71(3). Epub 2021 Mar 19.

State Key Laboratory of Lunar and Planetary Sciences, Macau University of Science and Technology (MUST), Macau SAR, PR China.

A novel slightly halophilic Gram-stain-negative bacterial strain (MKS20) was isolated from a brine sample collected from one of the Anderton brine springs in the Cheshire salt district, located in Northern England. Phylogenetic analysis of the 16S rRNA gene sequence revealed a close proximity to (98.30 %), followed by (96. Read More

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