1,234 results match your criteria emended description


New Glomeromycotan Taxa, sp. nov. and gen. nov. et sp. nov. From Brazil, and gen. nov. From New Caledonia.

Front Microbiol 2021 23;12:655910. Epub 2021 Apr 23.

Departamento de Botânica e Zoologia, Universidade Federal do Rio Grande do Norte, Natal, Brazil.

Examination of fungal specimens collected in the Atlantic rain forest ecosystems of Northeast Brazil revealed many potentially new epigeous and semihypogeous glomerocarp-producing species of the phylum Glomeromycota. Among them were two fungi that formed unorganized epigeous glomerocarps with glomoid spores of almost identical morphology. The sole structure that distinguished the two fungi was the laminate layer 2 of their three-layered spore wall, which in spores of the second fungus crushed in PVLG-based mountants contracted and, consequently, transferred into a crown-like structure. Read More

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Diversity and emendation of the genus Planktoniella (Bacillariophyceae), with descriptions of P. tubulata sp. nov. and P. trifurcata sp. nov.

J Phycol 2021 Apr 29. Epub 2021 Apr 29.

Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Healthy and Safe Aquaculture, College of Life Science, South China Normal University, West 55 of Zhongshan Avenue, Guangzhou, 510631, China.

For the first time LSU and SSU sequences were obtained from four species of the marine planktonic diatom Planktoniella. Samples were collected and cultured from Chinese coastal waters, and morphological observations were made using light and scanning electron microscopy. Combined morphological and DNA sequence data revealed two new species herein described as P. Read More

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sp. nov. and sp. nov., isolated from the gut of larvae of , reclassification of as comb. nov. and emended description of the genus .

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

Agricultural Microbiology Division, Wanju-gun, Jeollabuk-do 55365, Republic of Korea.

Two bacterial strains, FWR-8 and CFWR-9, were isolated from the gut of larvae of that were raised at the National Institute of Agricultural Sciences, Wanju-gun, Republic of Korea. Both strains were strictly aerobic, Gram-stain-positive and non-motile. Strain FWR-8 possessed the highest sequence similarity (98. Read More

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sp. nov., a mesophilic, iron(III)-reducing bacterium from seafloor/subseafloor environments in the Pacific Ocean, and emended description of the genus .

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

Department of Biological Sciences, University of Southern California, Los Angeles, CA 90089, USA.

A novel mesophilic, anaerobic, mixotrophic bacterium, with designated strains EPR-M and HR-1, was isolated from a semi-extinct hydrothermal vent at the East Pacific Rise and from an Fe-mat at Lō'ihi Seamount, respectively. The cells were Gram-negative, pleomorphic rods of about 2.0 µm in length and 0. Read More

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Molecular phylogeny and new light microscopic data of (Microsporidia: Metchnikovellidae), a hyperparasite of eugregarine sp. from the polychaete .

Parasitology 2021 Apr 12:1-8. Epub 2021 Apr 12.

Laboratory of Cytology of Unicellular Organisms, Institute of Cytology RAS, Tikhoretsky ave. 4, Saint Petersburg194064, Russian Federation.

Metchnikovellids are a deep-branching group of microsporidia, parasites of gregarines inhabiting the alimentary tract of polychaetes and some other invertebrates. The diversity and phylogeny of these hyperparasites remain poorly studied. Modern descriptions and molecular data are still lacking for many species. Read More

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Rouxiella aceris sp. nov., isolated from tree sap and the emended description of the genus Rouxiella.

Antonie Van Leeuwenhoek 2021 Apr 11. Epub 2021 Apr 11.

Department of Biological Sciences and Biotechnology, Hannam University, Daejon, 34054, Republic of Korea.

Polyphasic taxonomic studies were performed for the seven strains, which were isolated from sap extracted from Acer pictum in Mt. Halla in Jeju, Republic of Korea. Cells of all the isolates were Gram-reaction-negative, facultatively anaerobic, short rods and contained the major isoprenoid quinone of Q-8, the predominant fatty acids of C and C cyclo and the major polar lipids including phosphatidylethanolamine, phosphatidylglycerol and an unidentified aminophospholipid. Read More

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Reclassification of as gen. nov., comb. nov., of as comb. nov, with an emended description of the genus , recognition that the genus names and are heterotypic synonyms and description of sp. nov., a halotolerant isolate from surface soil sampled at an ancient copper smelter.

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

Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures, Inhoffenstraße 7B, 38124 Braunschweig, Germany.

In the course of screening the surface soils of ancient copper mines and smelters (East Harz, Germany) an aerobic, non-motile and halotolerant actinobacterium forming small rods or cocci was isolated. The strain designated F300 developed creamy to yellow colonies on tryptone soy agar and grew optimally at 28 °C, pH 7-8 and with 0.5-2 % (m/v) NaCl. Read More

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Redescription of Brachycepsis Brendel, notes on Taphroscydmus Casey, and brief review of Nearctic genera of Stenichnini (Coleoptera: Staphylinidae: Scydmaeninae).

Zootaxa 2021 Jan 20;4915(1):zootaxa.4915.1.5. Epub 2021 Jan 20.

Museum of Natural History, University of Wrocław, Sienkiewicza 21, 50-335 Wrocław, Poland..

Stenichnini of the Nearctic region include twelve genera, of which two are cosmopolitan, two Holarctic, and eight are known only in North America. Morphological structures and taxonomic placement of most of them have been subjects of recent studies, with exception of Brachycepsis Brendel and Taphroscydmus Casey. Because the depository of the type material of the type species of Brachycepsis, B. Read More

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January 2021

Duganella aceris sp. nov., isolated from tree sap and proposal to transfer of Rugamonas aquatica and Rugamonas rivuli to the genus Duganella as Duganella aquatica comb. nov., with the emended description of the genus Rugamonas.

Arch Microbiol 2021 Mar 22. Epub 2021 Mar 22.

Institute of Jeju Microbial Resources, BioPS Co., Ltd., Cheju, 63243, Republic of Korea.

A Gram-reaction-negative, strictly aerobic, betaproteobacterial strain, designated SAP-35, was isolated from sap extracted from Acer pictum in Mt. Halla in Jeju, Republic of Korea, and its taxonomic status was examined by a polyphasic approach. Cells of the organism were non-sporulating, motile rods and grew at 4-30 °C, pH 6-7 and in the absence of NaCl. Read More

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gen. nov., sp. nov., a new actinobacterium isolated from hot spring sediment, and emended description of the family .

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

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.

One thermophilic bacterium, designated strain SYSU G02662, was isolated from hot spring sediment sampled in Tibet, PR China. Polyphasic taxonomic analyses and whole-genome sequencing were used to determine the taxonomy position of the strain. Phylogenetic analysis using 16S rRNA gene sequences indicated that strain SYSU G02662 showed the highest sequence similarity to SCSIO 58843 (95. Read More

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Morphological and genetic analyses of Ostreopsis (Dinophyceae, Gonyaulacales, Ostreopsidaceae) species from Vietnamese waters with a re-description of the type species, O. siamensis.

J Phycol 2021 Mar 2. Epub 2021 Mar 2.

Institute of Oceanography, Viet Nam Academy of Science and Technology, 01 Cau Da, Vinh Nguyen, 650000, Nha Trang, Viet Nam.

Identification of species of the dinoflagellate genus Ostreopsis is difficult because several species have been poorly described, others misidentified in the literature, and the type species, O. siamensis, has not been described by contemporary taxonomic methods. In the present study, it is argued that Ostreopsis sp. Read More

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Tardigrades of Kristianstads Vattenrike Biosphere Reserve with description of four new species from Sweden.

Sci Rep 2021 Mar 1;11(1):4861. Epub 2021 Mar 1.

Department of Environmental Science and Bioscience, Kristianstad University, 29188, Kristianstad, Sweden.

Kristianstads Vattenrike Biosphere Reserve [KVBR] is a UNESCO designated area of Sweden possessing high biological value. Although several studies on tardigrades inhabiting Sweden have been performed, the KVBR area has been neglected. The current study investigates the tardigrade fauna of five areas of the biosphere reserve and includes 34 samples of different substrates analysed quantitatively and qualitatively. Read More

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Global Phylogeny and Taxonomy of the Wood-Decaying Fungal Genus (Polyporales, Basidiomycota).

Front Microbiol 2021 10;12:622460. Epub 2021 Feb 10.

Beijing Museum of Natural History, Beijing, China.

An in-depth study of the phylogeny and taxonomy of the corticioid genus (Phanerochaetaceae) was conducted. Phylogenetic analyses of the ITS1-5.8S-ITS2 and nrLSU sequences demonstrated that is a strongly supported clade which is distinct from its sister clades of , , and . Read More

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February 2021

sp. nov. () as a replacement of the species '' Harwich . 2012 and '' Shukla . 2002, and emended description of Collins . 2001.

Int J Syst Evol Microbiol 2019 Jun 22;71(3). Epub 2021 Feb 22.

Institute of Applied Microbiology, Justus-Liebig-University Giessen, 35392 Giessen, Germany.

Members of the genus are fastidious bacteria that predominantly colonise the female genital tract and are significantly associated with reproductive disorders and genital and neonatal disease. From a taxonomical perspective, the genus only comprises the species . Numerous reports on a second species, '', have been published, but the name has never been validated. Read More

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Crateriforma spongiae sp. nov., isolated from a marine sponge and emended description of the genus "Crateriforma".

Antonie Van Leeuwenhoek 2021 Apr 13;114(4):341-353. Epub 2021 Feb 13.

Department of Plant Sciences, School of Life Sciences, University of Hyderabad, P.O. Central University, Hyderabad, 500046, India.

A Gram-stain-negative, aerobic, pear to oval shaped, rosette forming bacterium with crateriform structures well distributed on the cell surface designated as strain JC647 was isolated from a sponge specimen belonging to the genus Spongia. Strain JC647 reproduces through budding. Strain JC647 shared highest 16S rRNA gene sequence identity of 99. Read More

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Heminiphilus faecis gen. nov., sp. nov., a member of the family Muribaculaceae, isolated from mouse faeces and emended description of the genus Muribaculum.

Antonie Van Leeuwenhoek 2021 Mar 10;114(3):275-286. Epub 2021 Feb 10.

Metabolic Regulation Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea.

The novel strain AM35 was isolated from the faeces of C57BL/6 mice. These cells are strictly anaerobic, gram negative, oxidase negative, catalase positive, rod-shaped and non-motile. The strain produced creamy yellowish colonies on brain heart infusion (BHI) agar with hemin. Read More

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Siccirubricoccus phaeus sp. nov., isolated from oil reservoir water and emended description of the genus Siccirubricoccus.

Antonie Van Leeuwenhoek 2021 Apr 6;114(4):355-364. Epub 2021 Feb 6.

State Key Laboratory of Agrobiotechnology, Department of Microbiology and Immunology, College of Biological Sciences, China Agricultural University, Beijing, 100193, People's Republic of China.

A Gram-staining-negative, non-motile, aerobic bacterium, designated 1-3, was isolated from oil reservoir water collected from Liaohe oilfield, north-east of China. Growth was observed at 15-40 °C (optimum 37 °C) and pH 6-10 (optimum 7). The strain can grow under nitrogen-limiting condition. Read More

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Proposal of Lentzea deserti (Okoro et al. 2010) Nouioui et al. 2018 as a later heterotypic synonym of Lentzea atacamensis (Okoro et al. 2010) Nouioui et al. 2018 and an emended description of Lentzea atacamensis.

PLoS One 2021 4;16(2):e0246533. Epub 2021 Feb 4.

Hunan Research Center of Engineering Technology for Utilization of Environmental and Resources Plant, Central South University of Forestry and Technology, Changsha, Hunan, China.

The taxonomic relationship of Lentzea atacamensis and Lentzea deserti were re-evaluated using comparative genome analysis. The 16S rRNA gene sequence analysis indicated that the type strains of L. atacamensis and L. Read More

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February 2021

subsp. subsp. nov., pathogenic to the edible cockles in France, and establishment of subsp. subsp. nov. and subsp. subsp. nov.

Int J Syst Evol Microbiol 2021 Feb;71(2)

IHPE, Univ. Montpellier, CNRS, Ifremer, Univ. Perpignan Via Domitia, 34090 Montpellier, France.

Cockle mortality events have been reported in northern France since 2012. In the present study, we describe and investigate the implication of a potential bacterial causative agent in cockle mortality. Bacteria isolated from five different cockle mortality events were characterized and studied. Read More

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February 2021

sp. nov. and sp. nov., novel sulfur-oxidizing bacteria isolated from coastal sediments and an emended description of the genus .

Int J Syst Evol Microbiol 2021 Feb;71(2)

State Key Laboratory Breeding Base of Marine Genetic Resources, Xiamen 361005, PR China.

Two novel Gram-strain-negative and rod-shaped bacteria, designated strain G1 and G2, were isolated from sediment samples collected from the coast of Xiamen, PR China. The cells were motile by a single polar flagellum. Growth of strain G1 occurred at 10-40 °C (optimum, 30 °C), at pH 6. Read More

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February 2021

Leucobacter coleopterorum sp. nov., Leucobacter insecticola sp. nov., and Leucobacter viscericola sp. nov., isolated from the intestine of the diving beetles, Cybister brevis and Cybister lewisianus, and emended description of the genus Leucobacter.

J Microbiol 2021 Apr 26;59(4):360-368. Epub 2021 Jan 26.

Department of Biology and Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul, 02447, Republic of Korea.

Three novel bacterial strains, HDW9A, HDW9B, and HDW9C, isolated from the intestine of the diving beetles Cybister lewisianus and Cybister brevis, were characterized as three novel species using a polyphasic approach. The isolates were Gram-staining-positive, strictly aerobic, non-motile, and rod-shaped. They grew optimally at 30°C (pH 7) in the presence of 0. Read More

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sp. nov., sp. nov. and sp. nov., marine, cellulolytic endosymbiotic bacteria isolated from the gills of the wood-boring mollusc (Bivalvia: Teredinidae) and emended description of the genus .

Int J Syst Evol Microbiol 2021 Feb;71(2)

Ocean Genome Legacy Center, Northeastern University, Nahant, MA, USA.

Here, we describe three endosymbiotic bacterial strains isolated from the gills of the shipworm, (Teredinidae: Bivalvia). These strains, designated as Bs08, Bs12 and Bsc2, are Gram-stain-negative, microaerobic, gammaproteobacteria that grow on cellulose and a variety of substrates derived from lignocellulose. Phenotypic characterization, phylogeny based on 16S rRNA gene and whole genome sequence data, amino acid identity and percentage of conserved proteins analyses, show that these strains are novel and may be assigned to the genus . Read More

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February 2021

A new species of Wellcomia (Nematoda: Oxyuridae) in the plains viscacha (Rodentia: Chinchillidae) from Argentina, an emended diagnosis and an update of the genus Wellcomia.

Parasitol Res 2021 Mar 6;120(3):929-940. Epub 2021 Jan 6.

Centro de Estudios Parasitológicos y de Vectores CEPAVE (CCT La Plata CONICET-UNLP), 120 entre 60 y 64 S/N, 1900 La Plata, Buenos Aires, Argentina.

Wellcomia species (Oxyuridae, Syphaciinae) parasitise several families of rodents from Africa, Asia and America with diverse ecological characteristics. A new species of Wellcomia is described based on specimens obtained from the plains viscacha Lagostomus maximus (Chinchillidae) from Argentina. The description includes morphometric and ecological aspects and an emended diagnosis of the genus Wellcomia. Read More

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Long-Chain Fatty Acids Degradation by Species and Proposal of " Desulfomonile Palmitatoxidans".

Front Microbiol 2020 17;11:539604. Epub 2020 Dec 17.

Centre of Biological Engineering, University of Minho, Braga, Portugal.

Microbial communities with the ability to convert long-chain fatty acids (LCFA) coupled to sulfate reduction can be important in the removal of these compounds from wastewater. In this work, an enrichment culture, able to oxidize the long-chain fatty acid palmitate (C) coupled to sulfate reduction, was obtained from anaerobic granular sludge. Microscopic analysis of this culture, designated HP culture, revealed that it was mainly composed of one morphotype with a typical collar-like cell wall invagination, a distinct morphological feature of the genus. Read More

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December 2020

Genomic-based classification of Catenulispora pinisilvae sp. nov., novel actinobacteria isolated from a pine forest soil in Poland and emended description of Catenulispora rubra.

Syst Appl Microbiol 2021 Jan 8;44(1):126164. Epub 2020 Dec 8.

School of Natural and Environmental Sciences, Ridley Building 2, Newcastle University, Newcastle upon Tyne, NE1 7RU, United Kingdom. Electronic address:

Two actinobacteria, strains NF3 and NH11, isolated from a pine forest soil, near Torun, Poland were examined for diverse chemotaxonomic and morphological properties that placed them in the genus Catenulispora. They produced an extensively branched stable mycelium, contained LL-diaminopimelic acid as the diamino acid of the peptidoglycan, arabinose as the diagnostic whole-organism sugar, tetra-, hexa- and octa-hydrogenated menaquinones with nine isoprenoid units as the predominant isoprenologues, iso-C and anteiso-C as major fatty acids, and formed a well supported clade within the Catenulispora 16S rRNA gene tree together with Catenulispora acidiphila DSM 44928 and Catenulispora rubra DSM 44948 sharing sequence similarities with the latter of 98.8 and 99. Read More

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January 2021

Description of Vagococcus coleopterorum sp. nov., isolated from the intestine of the diving beetle, Cybister lewisianus, and Vagococcus hydrophili sp. nov., isolated from the intestine of the dark diving beetle, Hydrophilus acuminatus, and emended description of the genus Vagococcus.

J Microbiol 2021 Feb 23;59(2):132-141. Epub 2020 Dec 23.

Department of Biology and Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, 02447, Republic of Korea.

A polyphasic taxonomic approach was used to characterize two novel bacterial strains, HDW17A and HDW17B, isolated from the intestine of the diving beetle Cybister lewisianus, and the dark diving beetle Hydrophilus acuminatus, respectively. Both strains were Gram-positive and facultative anaerobic cocci forming cream-colored colonies. The isolates grew optimally at 25°C, pH 7, in the presence of 0. Read More

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February 2021

sp. nov., a Fermenting Bacterium Isolated from a Petroleum Reservoir in Azerbaijan, and Emended Description of the Genus .

Microorganisms 2020 Dec 11;8(12). Epub 2020 Dec 11.

Institute of Microbiology of the National Academy of Sciences of Azerbaijan, Baku AZ1073, Azerbaijan.

A methanogenic enrichment growing on a medium with methanol was obtained from a petroleum reservoir (Republic of Azerbaijan) and stored for 33 years without transfers to fresh medium. High-throughput sequencing of the V4 region of the 16S rRNA gene revealed members of the genera , , , , , and . A novel gram-positive, rod-shaped, anaerobic fermentative bacterium, strain 1933P, was isolated from this enrichment and characterized. Read More

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December 2020

sp. nov., sp. nov. and sp. nov., isolated from terrestrial environments, and emended description of the genus .

Int J Syst Evol Microbiol 2021 Jan 9;71(1). Epub 2020 Dec 9.

Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Tokyo 113-8657, Japan.

Three bacterial strains, designated Red330, Red736 and Red745, were isolated from forest and paddy soils in Japan. Strains Red330, Red736 and Red745 are flagella-harbouring and strictly anaerobic bacteria forming red colonies. A 16S rRNA gene sequence-based phylogenetic tree showed that all three strains were located in a cluster, including the type strains of species, which were recently separated from the genus within the family . Read More

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January 2021