International Journal of Systematic and Evolutionary Microbiology This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.

 Spathaspora quercus f.a., sp. nov., a novel yeast isolated from rotting wood and a lichen sample in Kyushu region, Japan
Int J Syst Evol Microbiol. 2024 Jan;74(1). doi: 10.1099/ijsem.0.006254.ABSTRACTFour novel d-xylose assimilation yeast strains were isolated from rotting wood and a lichen sample collected in the Kyushu region of Japan. Species identifications were performed by analysing the internal transcribed spacer 5.8S region sequences and the D1/D2 variable domain of the large subunit rRNA gene. Phylogenetic analysis suggested that these isolates are closely related to Spathaspora species isolated in China, such as S. jiuxiensis and S. parajiuxiensis. These isolates also showed sequence similarity to deposited sequences labelled as Sc...
Source: International Journal of Systematic and Evolutionary Microbiology - January 29, 2024 Category: Microbiology Authors: Ayuki Hamaguchi Katsuhiro Umeshita Hisataka Taguchi Yu Sasano Source Type: research

 Fontisubflavum oceani gen. nov., sp. nov., isolated from the deep-sea cold seep water of South China Sea
In this study, we report a Gram-stain-negative, rod-shaped, atrichous and aerobic bacterial strain named CSW1921T, which was isolated from the deep-sea water of a cold seep in South China Sea. Growth of strain CSW1921T occurred at 10.0-35.0 °C (optimum, 30 °C), pH 5.0-10.0 (optimum, pH 8.0-9.0) and with 0-9.0 % (w/v) NaCl (optimum, 1.0-2.0 %). Phylogenetic tree analysis based on 16S rRNA gene sequence or the genomic sequence indicated that strain CSW1921T belonged to the family Rhodobacteraceae and was closely related to Rhodophyticola porphyridii MA-7-27T (97.5 % sequence similarity). Genomic analysis indicated that str...
Source: International Journal of Systematic and Evolutionary Microbiology - January 29, 2024 Category: Microbiology Authors: Xiu-Dan Xu Dan-Dan Zhou Bin-Zhe Zhang Jian Zhang Source Type: research

 Citrobacter enshiensis sp. nov., isolated from seleniferous soil
Int J Syst Evol Microbiol. 2024 Jan;74(1). doi: 10.1099/ijsem.0.006154.ABSTRACTTwo Gram-stain-negative, facultative anaerobic, rod-shaped bacterial strains, S171T and S2-9, were isolated from seleniferous soil in China. Comprehensive phylogenetic analyses based on 16S rRNA genes, multilocus sequences and whole genome sequences indicated that the two strains belonged to the genus Citrobacter. The average nucleotide identity (ANI) and digital DNA-DNA hybridization (dDDH) values of strains S171T and S2-9 with the closest relative Citrobacter koseri NCTC 10786T were 83.6-83.7% and 27.7-27.8 %, respectively, which were below th...
Source: International Journal of Systematic and Evolutionary Microbiology - January 25, 2024 Category: Microbiology Authors: Sasa Zhang Kui Li Jing Peng Haoyang Wang Jiayin Sun Yanbin Guo Source Type: research

Is the bacterial genus name Rhodococcus Zopf 1891 illegitimate? Request for an Opinion
Int J Syst Evol Microbiol. 2024 Jan;74(1). doi: 10.1099/ijsem.0.006251.ABSTRACTIn 2014, it was reported that the bacterial genus name Rhodococcus Zopf 1891 was illegitimate due to the priority of the cyanobacterial genus name Rhodococcus Hansgirg 1884. Since that time, the consequences of this conclusion have been largely ignored, whilst changes have been made to relevant Rules of the International Code of Nomenclature of Prokaryotes, including significant changes to the way in which the Code treats the names of members of Cyanobacteriota. Given the complexity of the nomenclatural issues, we request the opinion of the Judi...
Source: International Journal of Systematic and Evolutionary Microbiology - January 24, 2024 Category: Microbiology Authors: Michael Goodfellow Aharon Oren Vartul Sangal Iain C Sutcliffe Source Type: research

 Halomonas citrativorans sp. nov., Halomonas casei sp. nov. and Halomonas colorata sp. nov., isolated from French cheese rinds
Int J Syst Evol Microbiol. 2024 Jan;74(1). doi: 10.1099/ijsem.0.006234.ABSTRACTEight Gram-stain-negative bacterial strains were isolated from cheese rinds sampled in France. On the basis of 16S rRNA gene sequence analysis, all isolates were assigned to the genus Halomonas. Phylogenetic investigations, including 16S rRNA gene studies, multilocus sequence analysis, reconstruction of a pan-genome phylogenetic tree with the concatenated core-genome content and average nucleotide identity (ANI) calculations, revealed that they constituted three novel and well-supported clusters. The closest relative species, determined using th...
Source: International Journal of Systematic and Evolutionary Microbiology - January 24, 2024 Category: Microbiology Authors: Caroline Isabel Kothe Christophe Monnet Fran çoise Irlinger Mathieu Virsolvy Anja Fr ühling Meina Neumann-Schaal Jacqueline Wolf Pierre Renault Source Type: research

 Bdellovibrio svalbardensis sp. nov., a newly described predator isolated from Svalbard, Norway
Int J Syst Evol Microbiol. 2024 Jan;74(1). doi: 10.1099/ijsem.0.006248.ABSTRACTIdentified as a newly described species from a biocrust in Svalbard, Norway (78° 54' 8.27″ N 12° 01' 20.34″ E), isolate PAP01T has different characteristics from any known predatory bacteria. The isolate was vibrio-shaped strain that employed flagellar motility. Phylogenetic analysis based on 16S rRNA gene sequences revealed that the isolate clustered within the genus Bdellovibrio in the family Bdellovibrionaceae. 16S rRNA gene sequence similarities between strain PAP01T and the type strain (Bdellovibrio bacteriovorus HD100) was 95.7 %. Th...
Source: International Journal of Systematic and Evolutionary Microbiology - January 24, 2024 Category: Microbiology Authors: Seong Yeol Choi Wonsik Mun Sumin Choi Kyoung Lee Robert J Mitchell Source Type: research

 Caproicibacterium argilliputei sp. nov., a novel caproic acid producing anaerobic bacterium isolated from pit clay
Int J Syst Evol Microbiol. 2024 Jan;74(1). doi: 10.1099/ijsem.0.006246.ABSTRACTAn anaerobic, Gram-positive, rod-shaped, motile and spore-forming bacterium, designated strain ZCY20-5T, was isolated from pit clay of Chinese strong-aroma type Baijiu (Chinese liquor). Phylogenetic analyses based on 16S rRNA gene and genome sequences showed that strain ZCY20-5T belonged to the genus Caproicibacterium, family Oscillospiracheae, but it showed low similarity to the type species Caproicibacterium amylolyticum LBM18003T (98.00 %) and Caproicibacterium lactatifermentans LBM19010T (95.67 %). In anaerobic yeast extract medium, growth w...
Source: International Journal of Systematic and Evolutionary Microbiology - January 24, 2024 Category: Microbiology Authors: Caiyu Zeng Xiang Zeng Shangcao Xia Guangbin Ye Source Type: research

 Methylocystis suflitae sp. nov., a novel type II methanotrophic bacterium isolated from landfill cover soil
Int J Syst Evol Microbiol. 2024 Jan;74(1). doi: 10.1099/ijsem.0.006239.ABSTRACTA bacterial strain, designated NLS-7T, was isolated through enrichment of landfill cover soil in methane-oxidizing conditions. Strain NLS-7T is a Gram-stain negative, non-motile rod, approximately 0.8 µm wide by 1.3 µm long. Phylogenetic analysis based on 16S rRNA gene sequencing places it within the genus Methylocystis, with its closest relatives being M. hirsuta, M. silviterrae and M. rosea, with 99.9, 99.7 and 99.6 % sequence similarity respectively. However, average nucleotide identity and average amino acid identity values below the 95 % ...
Source: International Journal of Systematic and Evolutionary Microbiology - January 23, 2024 Category: Microbiology Authors: Christopher T Garner Krithivasan Sankaranarayanan Christopher A Abin Rosa M Garner Haiyuan Cai Paul A Lawson Lee R Krumholz Source Type: research

Valid publication of names of two domains and seven kingdoms of prokaryotes
Int J Syst Evol Microbiol. 2024 Jan;74(1). doi: 10.1099/ijsem.0.006242.ABSTRACTThe International Code of Nomenclature of Prokaryotes (ICNP) now includes the categories domain and kingdom. For the purpose of the valid publication of their names under the ICNP, we consider here the two known domains, 'Bacteria' and 'Archaea', as well as a number of taxa suitable for the rank of kingdom, based on previous phylogenetic and taxonomic studies. It is proposed to subdivide the domain Bacteria into the kingdoms Bacillati, Fusobacteriati, Pseudomonadati and Thermotogati. This arrangement reflects contemporary phylogenetic hypotheses...
Source: International Journal of Systematic and Evolutionary Microbiology - January 22, 2024 Category: Microbiology Authors: Markus G öker Aharon Oren Source Type: research

 Marinimicrococcus flavescens gen. nov., sp. nov., a new member of the family Geminicoccaceae , isolated from a marine sediment of the South China Sea
Int J Syst Evol Microbiol. 2024 Jan;74(1). doi: 10.1099/ijsem.0.006241.ABSTRACTA Gram-stain-negative, catalase-positive and oxidase-positive, nonmotile, aerobic, light yellow, spherical-shaped bacterial strain with no flagella, designated strain YIM 152171T, was isolated from sediment of the South China Sea. Colonies were smooth and convex, light yellow and circular, and 1.0-1.5×1.0-1.5 µm in cell diameter after 7 days of incubation at 28°C on YIM38 media supplemented with sea salt. Colonies could grow at 20-45°C (optimum 28-35°C) and pH 6.0-11.0 (optimum, pH 7.0-9.0), and they could proliferate in the salinity range ...
Source: International Journal of Systematic and Evolutionary Microbiology - January 19, 2024 Category: Microbiology Authors: Zu-Zhen Yang Lian-Shuang Xiong Qing Yuan Shu-Ya Zuo Xue-Mei Chen Ming-Guo Jiang Xin-Peng Tian Cheng-Lin Jiang Yi Jiang Source Type: research

 Enterococcus montenegrensis sp. nov., isolated from artisanal Montenegrin dry sausage
Int J Syst Evol Microbiol. 2024 Jan;74(1). doi: 10.1099/ijsem.0.006206.ABSTRACTA novel, Gram-positive, facultative anaerobe, coccoid and non-motile bacterium, designated as CoE-012-22T was isolated from dried beef sausage (the original name in Montenegro is Govedji Kulen) manufactured in the municipality of Rozaje (Montenegro) in 2021. Cells of this strain were oxidase- and catalase-negative. Growth occurred at 4-50 °C, at pH 5.0-8.0 and with 0-6.5 % (w/v) NaCl in diverse growth media. MALDI-TOF analysis identified the strain as Enterococcus canintestini (log score 2). Phylogenetic analysis of the 16S rRNA gene and whole ...
Source: International Journal of Systematic and Evolutionary Microbiology - January 19, 2024 Category: Microbiology Authors: Beatriz Daza-Prieto Nadja Raicevic Adriana Cabal Patrick Hyden Tobias M ösenbacher Johann Ladst ätter Susanne Richter Anna St öger Maria Joao Cardoso Ali Chakeri Petra Hasenberger Silke Stadlbauer Robert L Mach Aleksandra Martinovic Werner Ruppitsch Source Type: research

Microbulbifer bruguierae sp. nov., isolated from sediment of mangrove plant Bruguiera sexangula , and comparative genomic analyses of the genus Microbulbifer 
Int J Syst Evol Microbiol. 2024 Jan;74(1). doi: 10.1099/ijsem.0.006209.ABSTRACTA Gram-negative, non-motile, strictly aerobic, rod-shaped bacterium, designated as H12T, was isolated from the sediments of mangrove plant Bruguiera sexangula taken from Dapeng district, Shenzhen, PR China. The pairwise 16S rRNA gene sequence analysis showed that strain H12T shared high identity levels with species of the genus Microbulbifer, with the highest similarity level of 98.5 % to M. pacificus SPO729T, followed by 98.1 % to M. donghaiensis CN85T. Phylogenetic analysis using core-genome sequences showed that strain H12T formed a cluster w...
Source: International Journal of Systematic and Evolutionary Microbiology - January 19, 2024 Category: Microbiology Authors: Meng Long Dakun Chen Huimin Fan Shaoshuai Tang Zhen Gan Hongli Xia Yishan Lu Source Type: research

Aquimarina aquimarini sp. nov. and Aquimarina spinulae sp. nov., novel bacterial species with versatile natural product biosynthesis potential isolated from marine sponges
This study describes two Gram-negative, flexirubin-producing, biofilm-forming, motile-by-gliding and rod-shaped bacteria, isolated from the marine sponges Ircinia variabilis and Sarcotragus spinosulus collected off the coast of Algarve, Portugal. Both strains, designated Aq135T and Aq349T, were classified into the genus Aquimarina by means of 16S rRNA gene sequencing. We then performed phylogenetic, phylogenomic and biochemical analyses to determine whether these strains represent novel Aquimarina species. Whereas the closest 16S rRNA gene relatives to strain Aq135T were Aquimarina macrocephali JAMB N27T (97.8 %) and Aquim...
Source: International Journal of Systematic and Evolutionary Microbiology - January 19, 2024 Category: Microbiology Authors: Joana F Couceiro Matilde Marques Sandra G Silva Tina Keller-Costa Rodrigo Costa Source Type: research

Novel taxonomic and functional diversity of eight bacteria from the upper digestive tract of chicken
Int J Syst Evol Microbiol. 2024 Jan;74(1). doi: 10.1099/ijsem.0.006210.NO ABSTRACTPMID:38231200 | DOI:10.1099/ijsem.0.006210 (Source: International Journal of Systematic and Evolutionary Microbiology)
Source: International Journal of Systematic and Evolutionary Microbiology - January 17, 2024 Category: Microbiology Authors: Bibiana Rios-Galicia Johan S S áenz Timur Yergaliyev Christoph Roth Am élia Camarinha-Silva Jana Seifert Source Type: research

 Deinococcus rhizophilus sp.nov., isolated from rhizosphere soil
Int J Syst Evol Microbiol. 2024 Jan;74(1). doi: 10.1099/ijsem.0.006232.ABSTRACTA spherical, pink, aerobic, Gram-stain-positive bacterial strain (MIMF12T) was isolated from rhizosphere soil collected in the Inner Mongolia Autonomous Region, PR China. Cellular growth of the strain was observed at pH 6.0-8.0 (optimum, pH 7.0), at 20-37 °C (optimum, 28 °C) and with 0-1 % (w/v) NaCl (optimum, 0 %). Phylogenetic analyses based on 16S rRNA gene sequences indicated that strain MIMF12T was most closely related to Deinococcus terrestris SDU3-2T with a similarity value of 96.0 %. The respiratory quinone was menaquinone 8, the major...
Source: International Journal of Systematic and Evolutionary Microbiology - January 16, 2024 Category: Microbiology Authors: Fengzhi Gao Heng Li Kai Tang Tingting Zhang Runze Bao Fuying Feng Source Type: research