69,538 results match your criteria nov proposed


sp. nov. and sp. nov., from marine sponges.

Int J Syst Evol Microbiol 2021 Jul;71(7)

College of Biological and Environmental Engineering, Changsha University, Changsha 410022, PR China.

Two novel strains, LHW50502 and LHW51113, were isolated from marine sponges obtained on Xisha Island, Hainan Province, PR China. Rods and cocci, typical characteristics of the genus , were observed. The strains contained -diaminopimelic acid as the diagnostic diamino acid in the cell-wall hydrolysates and galactose, arabinose, ribose and glucose as the whole-cell sugars. Read More

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Physiological and genomic features of with the description of sp. nov.

Int J Syst Evol Microbiol 2021 Jul;71(7)

Key Laboratory of Marine Ecosystem Dynamics, Ministry of Natural Resources & Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, PR China.

Strains M65, M69 and JN25 were isolated from seawater of the West Pacific Ocean. Cells of the three strains were Gram-stain-negative, aerobic and rod-shaped. Cells were motile by means of flagella. Read More

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sp. nov., isolated from the gut of the freshwater mussel .

Int J Syst Evol Microbiol 2021 Jul;71(7)

Department of Biology and Department of Biomedical and Pharmaceutical Sciences and Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea.

A novel Gram-stain-negative, aerobic, rod-shaped bacterium with a single polar flagellum, designated strain 2T18, was isolated from the gut of the freshwater mussel collected in the Republic of Korea. Phylogenetic analyses based on 16S rRNA gene sequences showed that the strain belonged to the genus . Strain 2T18 formed a monophyletic clade with KCTC 42982, KACC 11706 and KCTC 23839, with sequence similarities of 98. Read More

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sp. nov., an endophytic bacterium isolated from .

Int J Syst Evol Microbiol 2021 Jul;71(7)

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

An aerobic, Gram-stain-negative, weak-motile, short-rod-shaped bacterial strain, designated JBR3-12, was isolated from halophyte plants, and its taxonomic position was investigated by using a polyphasic taxonomic approach. The strain produced a pink pigment on tryptic soy agar and grew optimally at 25 °C, pH 8 and in the presence of 3 % (w/v) NaCl. Results of phylogenetic analysis based on 16S rRNA gene sequences showed that strain JBR3-12 formed a lineage within the genus and was most closely related to DS-27 (98. Read More

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sp. nov. and sp. nov. isolated from healthy domestic dogs.

Int J Syst Evol Microbiol 2021 Jul;71(7)

Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Easter Bush Campus, Midlothian EH25 9RG, UK.

Two strains, H8/1 and H16/1A, of Gram-stain-positive, coagulase-negative staphylococci were isolated from separate healthy domestic dogs in Scotland. Both strains were genome sequenced and their inferred DNA-DNA hybridisation indicates that H8/1 and H16/1A represent two novel species of the genus . On the basis of the results of genome sequence analysis (genome blast distance phylogeny and single nucleotide polymorphism analysis) H8/1 is most closely related to and H16/1A most closely related to . Read More

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Novel hyperthermophilic crenarchaeon Infirmifilum lucidum gen. nov. sp. nov., reclassification of Thermofilum uzonense as Infirmifilum uzonense comb. nov. and assignment of the family Thermofilaceae to the order Thermofilales ord. nov.

Syst Appl Microbiol 2021 Jul 9;44(4):126230. Epub 2021 Jul 9.

Winogradsky Institute of Microbiology, Research Center of Biotechnology RAS, 7/2 Prospekt 60-letiya Oktyabrya, 117312 Moscow, Russia.

A novel hyperthermophilic crenarchaeon, strain 3507LT, was isolated from a terrestrial hot spring near Tinguiririca volcano, Chile. Cells were non-motile thin, slightly curved filamentous rods. It grew at 73-93 °C and pH range of 5 to 7. Read More

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Hymenobacter taeanensis sp. nov., radiation resistant bacterium isolated from coastal sand dune.

Antonie Van Leeuwenhoek 2021 Jul 22. Epub 2021 Jul 22.

Radiation Research Division, Korea Atomic Energy Research Institute, Jeongeup, 56212, Republic of Korea.

An aerobic, Gram-stain-negative, non-motile, non-spore-forming, rod-shaped, and light pink-colored bacterial strain, designated TS19, was isolated from a sand sample obtained from a coastal sand dune after exposure to 3 kGy of gamma radiation. Phylogenetic analysis based on the 16S rRNA gene sequences revealed that the isolate was a member of the genus Hymenobacter and was most closely related to H. wooponensis WM78 (98. Read More

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sp. nov., isolated from poultry feather waste.

Int J Syst Evol Microbiol 2021 Jul;71(7)

Department of Microbial, Biochemical and Food Biotechnology, University of the Free State, Bloemfontein, Free State, South Africa.

A Gram-stain-negative, rod-shaped, non-motile, non-spore-forming, aerobic, yellow-pigmented bacterium was isolated from chicken feather waste collected from an abattoir in Bloemfontein, South Africa. A polyphasic taxonomy study was used to describe and name the bacterial isolate, strain 1_F178. The 16S rRNA gene sequence analysis and sequence comparison data indicated that strain 1_F178 was a member of the genus and was closely related to (99. Read More

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sp. nov., isolated from marine sediment.

Int J Syst Evol Microbiol 2021 Jul;71(7)

Department of Microbiology, Chung-Ang University College of Medicine, Seoul 06974, Republic of Korea.

A Gram-stain-negative, aerobic, non-motile, rod-shaped bacterial strain (CAU 1508) was isolated from marine sediment collected in the Republic of Korea. Growth was observed at 10-45 °C (optimum, 30 °C), pH 4.0-11. Read More

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sp. nov. and sp. nov., isolated from a mariculture fishpond.

Int J Syst Evol Microbiol 2021 Jul;71(7)

Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, PR China.

Two Gram-stain-negative, catalase-positive, oxidase-negative, rod-shaped, non-flagellated, non-spore-forming and non-motile strains (YJ13C and H41) were isolated from a mariculture fishpond in PR China. Comparisons based on 16S rRNA gene sequences indicated that YJ13C and H41 shared 16S rRNA gene sequences similarities between 92.6 and 99. Read More

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sp. nov., isolated from Indian Ocean marine sediment.

Int J Syst Evol Microbiol 2021 Jul;71(7)

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

A novel Gram-stain-positive, catalase-positive, oxidase-negative, aerobic, non-motile, rod-shaped bacterium, designated strain YIM M12148, was isolated from a marine sediment sample collected from the Indian Ocean. The strain grew optimally at 28 °C, pH 8.0 and in the presence of 1-3 % (w/v) NaCl. Read More

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sp. nov. and sp. nov., isolated from desert biocrust.

Int J Syst Evol Microbiol 2021 Jul;71(7)

Institute for Integrative Systems Biology I2SysBio (Universitat de València-CSIC), Calle del Catedràtic Agustin Escardino Benlloch 9, 46980 Paterna, Spain.

Two novel Gram-staining-negative, aerobic, cocci-shaped, non-motile, non-spore forming, pink-pigmented bacteria designated strains T6 and T18, were isolated from a biocrust (biological soil crust) sample from the vicinity of the Tabernas Desert (Spain). Both strains were catalase-positive and oxidase-negative, and grew under mesophilic, neutrophilic and non-halophilic conditions. According to the 16S rRNA gene sequences, strains T6 and T18 showed similarities with CGMCC 1. Read More

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Aegicerativicinus sediminis gen. nov., sp. nov., a novel carotenoid-producing marine bacterium in the family Flavobacteriaceae.

Antonie Van Leeuwenhoek 2021 Jul 22. Epub 2021 Jul 22.

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

A novel bright-yellow pigmented bacterial strain SM2-F was isolated from a mangrove sediment collected at the mangrove coast of Luoyang estuary, Quanzhou, China. Strain SM2-F was Gram-stain-negative, catalase-weak positive, oxidase-positive, rod-shaped, non-flagellated and non-motile. Growth of strain SM2-F was observed at 20-40 °C (optimum, 30 °C), pH 6. Read More

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Burkholderia perseverans sp. nov., a bacterium isolated from the Restinga ecosystem, is a producer of volatile and diffusible compounds that inhibit plant pathogens.

Braz J Microbiol 2021 Jul 21. Epub 2021 Jul 21.

Laboratory of Microbiology, Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium.

Gram-negative, aerobic, rod-shaped, non-spore-forming, motile bacteria, designated CBAS 719, CBAS 732 and CBAS 720 were isolated from leaf litter samples, collected in Espírito Santo State, Brazil, in 2008. Sequences of the 16S rRNA, gyrB, lepA and recA genes showed that these strains grouped with Burkholderia plantarii LMG 9035, Burkholderia gladioli LMG 2216 and Burkholderia glumae LMG 2196 in a clade of phytopathogenic Burkholderia species. Digital DNA-DNA hybridization experiments and ANI analyses demonstrated that strain CBAS 719 represents a novel species in this lineage that is very closely related with B. Read More

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sp. nov., an endophytic actinomycete isolated from Lindl.

Int J Syst Evol Microbiol 2021 Jul;71(7)

Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand.

Three novel actinomycete strains, designated as DR6-1, DR6-2 and DR6-4, isolated from the roots of Lindl in Thailand were studied using a polyphasic taxonomic approach. The strains grew at 20-37 °C, at pH 5-10 and with 5 % (w/v) NaCl. They contained -diaminopimelic acid in the cell-wall peptidoglycan and MK-9(H) was a major menaquinone. Read More

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Description of sp. nov., harboring antibiotic- and toxic compound-resistace genes, isolated from poultry manure.

Int J Syst Evol Microbiol 2021 Jul;71(7)

Department of Soil and Environmental Sciences, College of Agriculture and Natural Resources, National Chung Hsing University, Taichung, Taiwan, ROC.

A polyphasic taxonomic approach was used to characterize a Gram-stain-negative bacterium, designated strain CC-YST696, harbouring antibiotic- and toxic compound-resistace genes, isolated from poultry manure in Taiwan. Cells of CC-YST696 were short rods, motile with polar flagella, catalase- and oxidase-positive. Optimal growth occurred at 30 °С, pH 9 and with 1 % NaCl. Read More

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Description of sp. nov., isolated from deep sea sediment from the Mariana Trench, and emended description of the genus .

Int J Syst Evol Microbiol 2021 Jul;71(7)

CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Chinese Academy of Sciences, Institute of Oceanology, Qingdao, PR China.

In this study, we reported a Gram-stain-negative, orange-coloured, rod-shaped, motile and faculatively anaerobic bacterium named strain PB63, which was isolated from the deep-sea sediment from the Mariana Trench. Growth of PB63 occurred at 10-35 °C (optimum, 28 °C), pH 5.0-8. Read More

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' Xiphinematincola pachtaicus' gen. nov., sp. nov., an endosymbiotic bacterium associated with nematode species of the genus (Nematoda, Longidoridae).

Int J Syst Evol Microbiol 2021 Jul;71(7)

Institute for Sustainable Agriculture (IAS), Spanish National Research Council (CSIC), Avenida Menéndez Pidal s/n, 14004 Córdoba, Campus de Excelencia Internacional Agroalimentario, ceiA3, Spain.

An intracellular bacterium, strain IAS, was observed to infect several species of the plant-parasitic nematode genus (, , , , and ). The bacterium could not be recovered on axenic medium. The 16S rRNA gene sequence of IAS was found to be new, being related to the family Burkholderiaceae, class Betaproteobacteria. Read More

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sp. nov. and sp. nov., isolated from salt lake and saline soil.

Int J Syst Evol Microbiol 2021 Jul;71(7)

School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China.

Two halophilic archaeal strains, Gai3-2 and NJ-3-1, were isolated from salt lake and saline soil samples, respectively, collected in PR China. The 16S rRNA gene sequences of the two strains were 97.5% similar to each other. Read More

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gen. nov., sp. nov., a novel bacterium in the family , isolated from desert soil, and reclassification of to a new genus as comb. nov., and transfer of the genera and from the family to the family .

Int J Syst Evol Microbiol 2021 Jul;71(7)

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

A novel pale orange-coloured bacterium, designated strain SYSU D00532, was isolated from sandy soil collected from the Gurbantunggut desert in Xinjiang, PR China. Cells of strain SYSU D00532 were found to be aerobic, Gram-stain-negative, oxidase-positive, catalase-positive, motile and rod-shaped with a single polar or subpolar flagellum. Growth occurred at 15-45 °C (optimum, 28-37 °C, pH 5. Read More

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sp. nov., a thermophilic bacterium isolated from compost.

Int J Syst Evol Microbiol 2021 Jul;71(7)

Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing 100081, PR China.

A Gram-stain-positive, yellow-pigmented, non-motile actinobacterial strain, designated as BIT-GX5, was isolated from a sesame husks compost collected in Beijing, PR China. This bacterium was found to be able to grow in the temperature range from 16 to 50 °C and had an optimal growth temperature at 45 °C. Its taxonomic position was analysed using a polyphasic approach. Read More

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sp. nov. and sp. nov., isolated from Tibetan Plateau wildlife.

Int J Syst Evol Microbiol 2021 Jul;71(7)

State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China.

Four mesophilic and Gram-stain-positive strains (zg-686/zg-691 and HY186/HY189) isolated from Tibetan Plateau wildlife (PR China) belong to the genus according to 16S rRNA gene and genomic sequence-based phylogenetic/genomic results. They have a DNA G+C content range of 67.4-68. Read More

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Correcting data imbalance for semi-supervised COVID-19 detection using X-ray chest images.

Appl Soft Comput 2021 Nov 13;111:107692. Epub 2021 Jul 13.

Department of Computer Languages and Computer Science, University of Málaga, Spain.

A key factor in the fight against viral diseases such as the coronavirus (COVID-19) is the identification of virus carriers as early and quickly as possible, in a cheap and efficient manner. The application of deep learning for image classification of chest X-ray images of COVID-19 patients could become a useful pre-diagnostic detection methodology. However, deep learning architectures require large labelled datasets. Read More

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November 2021

Harris Hawks optimisation with Simulated Annealing as a deep feature selection method for screening of COVID-19 CT-scans.

Appl Soft Comput 2021 Nov 14;111:107698. Epub 2021 Jul 14.

Department of Computer Science and Engineering, Jadavpur University, Kolkata 700032, India.

Coronavirus disease 2019 (COVID-19) is a contagious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). It may cause severe ailments in infected individuals. The more severe cases may lead to death. Read More

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November 2021

Fuscibacter oryzae gen. nov., sp. nov., a phosphate-solubilizing bacterium isolated from the rhizosphere of rice plant.

Antonie Van Leeuwenhoek 2021 Jul 17. Epub 2021 Jul 17.

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

An ovoid to rod shaped, white to brown pigmented, facultative anaerobic, mesophilic, non-phototrophic, Gram-staining-negative, non-motile, multiply by binary fission designated strain KVB23, which was isolated from root of rice plant, near Ilsan, South Korea, was investigated for its taxonomic position by polyphasic approach. Optimal growth was found to occur at 30˚C, at pH 6.5 and in the absence of NaCl on R2A. Read More

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Diversity, biogeography, evolutionary relationships, and conservation of Eastern Mediterranean freshwater mussels (Bivalvia: Unionidae).

Mol Phylogenet Evol 2021 Jul 15;163:107261. Epub 2021 Jul 15.

CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, P 4450-208 Matosinhos, Portugal.

Located at the junction between Europe, Africa, and Asia, with distinct evolutionary origins and varied ecological and geographical settings, together with a marked history of changes in orogeny and configuration of the main river basins, turned the Eastern Mediterranean into a region of high diversity and endemism of freshwater taxa. Freshwater mussels (Bivalvia, Unionidae) from the Western Palearctic have been widely studied in their European range, but little attention has been dedicated to these taxa in the Eastern Mediterranean region and their diversity and phylogeography are still poorly understood. The present study aims to resolve the diversity, biogeography, and evolutionary relationships of the Eastern Mediterranean freshwater mussels. Read More

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Taxonomic description of Pseudomonas rhizovicinus sp. nov., isolated from the rhizosphere of a desert shrub Haloxylon ammodendron.

Antonie Van Leeuwenhoek 2021 Jul 16. Epub 2021 Jul 16.

Center for Grassland Microbiome, State Key Laboratory of Grassland Agro-Ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730000, People's Republic of China.

A Gram-negative aerobic bacterium, strain M30-35, was isolated from the rhizosphere of Haloxylon ammodendron in Tengger desert, Gansu province, northwest China. Our previous research indicated that strain M30-35 can promote the growth of ryegrass (Lolium perenne L.). Read More

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sp. nov., isolated from mangrove soil and the proposal for the reclassification of as comb. nov.

Int J Syst Evol Microbiol 2021 Jul;71(7)

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, PR China.

A novel Gram-stain-negative, aerobic and rod-shaped bacterial strain designated as 6D45A was isolated from mangrove soil and characterized using a polyphasic taxonomic approach. Strain 6D45A was found to grow at 10-37 °C (optimum, 28 °C), at pH 6.0-9. Read More

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sp. nov., a novel extreme thermophilic and piezophilic sulfur-reducing archaeon isolated from a deep-sea hydrothermal chimney.

Int J Syst Evol Microbiol 2021 Jul;71(7)

Univ Brest, CNRS, Ifremer, Laboratoire de Microbiologie des Environnements Extrêmes LM2E, IUEM, Rue Dumont d'Urville, F-29280 Plouzané, France.

A novel extreme thermophilic and piezophilic chemoorganoheterotrophic archaeon, strain EXT12c, was isolated from a hydrothermal chimney sample collected at a depth of 2496 m at the East Pacific Rise 9° N. Cells were strictly anaerobic, motile cocci. The strain grew at NaCl concentrations ranging from 1 to 5 % (w/v; optimum, 2. Read More

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sp. nov., isolated from soil.

Int J Syst Evol Microbiol 2021 Jul;71(7)

Department of Microbiology and Molecular Biology, College of Bioscience and Biotechnology, Chungnam National University, 99, Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea.

A Gram-stain-negative, oxidase-positive, catalase-positive, aerobic, orange-pigmented, rod-shaped and non-motile bacterium designated strain MMS17-SY002 was isolated from island soil. The isolate grew at 20-37 °C (optimum, 30 °C), at pH 6.0-9. Read More

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