scholarly journals Nitrogen-fixing and cellulose-producing Gluconacetobacter kombuchae sp. nov., isolated from Kombucha tea

2007 ◽  
Vol 57 (2) ◽  
pp. 353-357 ◽  
Author(s):  
Debasree Dutta ◽  
Ratan Gachhui

A few members of the family Acetobacteraceae are cellulose-producers, while only six members fix nitrogen. Bacterial strain RG3T, isolated from Kombucha tea, displays both of these characteristics. A high bootstrap value in the 16S rRNA gene sequence-based phylogenetic analysis supported the position of this strain within the genus Gluconacetobacter, with Gluconacetobacter hansenii LMG 1527T as its nearest neighbour (99.1 % sequence similarity). It could utilize ethanol, fructose, arabinose, glycerol, sorbitol and mannitol, but not galactose or xylose, as sole sources of carbon. Single amino acids such as l-alanine, l-cysteine and l-threonine served as carbon and nitrogen sources for growth of strain RG3T. Strain RG3T produced cellulose in both nitrogen-free broth and enriched medium. The ubiquinone present was Q-10 and the DNA base composition was 55.8 mol% G+C. It exhibited low values of 5.2–27.77 % DNA–DNA relatedness to the type strains of related gluconacetobacters, which placed it within a separate taxon, for which the name Gluconacetobacter kombuchae sp. nov. is proposed, with the type strain RG3T (=LMG 23726T=MTCC 6913T).

2013 ◽  
Vol 63 (Pt_7) ◽  
pp. 2436-2441 ◽  
Author(s):  
Hang-Yeon Weon ◽  
Soo-Jin Kim ◽  
Yun-Hee Jang ◽  
Moriyuki Hamada ◽  
Tomohiko Tamura ◽  
...  

A Gram-positive, aerobic, rod-shaped bacterial strain, 5116S-4T, was isolated from an air sample collected in Suwon city, Republic of Korea. Phylogenetic analysis based on 16S rRNA gene sequences indicated that this strain was a new member of the family Microbacteriaceae . The sequence similarities of this strain to the members of the family Microbacteriaceae were less than 97 %, with the highest values observed with Cryobacterium mesophilum MSL-15T (96.3 %), Cryobacterium roopkundense RuGl7T (96.2 %), Labedella gwakjiensis KSW2-17T (96.2 %), Cryobacterium luteum Hh15T (96.2 %), Cryobacterium psychrophilum DSM 4854T (96.2 %), Klugiella xanthotipulae 44C3T (96.0 %) and Amnibacterium kyonggiense KSL51201-037T (96.0 %). According to the phylogenetic tree, strain 5116S-4T formed a cluster with A. kyonggiense KSL51201-037T, Labedella gwakjiensis KSW2-17T and Lysinimonas soli SGM3-12T (95.3 % sequence similarity) on the support of high bootstrap values. Cells were motile with single polar flagellum and showed optimum growth at 30 °C and pH 7 without NaCl. Predominant cellular fatty acids were anteiso-C15 : 0, iso-C16 : 0 and anteiso-C17 : 0. Polar lipids were diphosphatidylglycerol, dimannosyldiacylglycerol, phosphatidylglycerol, one unknown glycolipid, one unknown phospholipid and one unknown lipid. The acyl type of the cell-wall muramic acid was the acetyl type. Peptidoglycan was supposed to be the type B1 with 2,4-diaminobutyric acid on position 3. Strain 5116S-4T was clearly distinguishable from the phylogenetically related genera in the family Microbacteriaceae in terms of chemotaxonomic characteristics. On the basis of the chemotaxonomic and phylogenetic characteristics, a novel genus and species are proposed, Naasia aerilata gen. nov., sp. nov. The type strain of Naasia aerilata is 5116S-4T ( = KACC 15517T  = NBRC 108725T).


2010 ◽  
Vol 60 (3) ◽  
pp. 620-626 ◽  
Author(s):  
Min-Soo Kim ◽  
Seong Woon Roh ◽  
Jin-Woo Bae

A slightly halophilic, Gram-stain-negative, straight-rod-shaped aerobe, strain JO1T, was isolated from jeotgal, a traditional Korean fermented seafood. Cells were observed singly or in pairs and had 2–5 peritrichous flagella. Optimal growth occurred at 25 °C, in 6.5 % (w/v) salts and at pH 5.0–6.0. Strain JO1T was oxidase-negative and catalase-positive. Cells did not reduce fumarate, nitrate or nitrite on respiration. Acid was produced from several carbohydrates and the strain utilized many sugars and amino acids as carbon and nitrogen sources. The main fatty acids were C12 : 0 3-OH, C16 : 0, C17 : 0 cyclo and summed feature 3 (C16 : 1 ω7c/iso-C15 : 0 2-OH). DNA–DNA hybridization experiments with strain JO1T and Cobetia marina DSM 4741T revealed 24 % relatedness, although high 16S rRNA gene sequence similarity (98.9 %) was observed between these strains. Based on phenotypic, genotypic and phylogenetic analyses, it is proposed that the isolate from jeotgal should be classified as a representative of a novel species, Cobetia crustatorum sp. nov., with strain JO1T (=KCTC 22486T=JCM 15644T) as the type strain.


2004 ◽  
Vol 54 (6) ◽  
pp. 2181-2184 ◽  
Author(s):  
Peter Schumann ◽  
Xiaolong Cui ◽  
Erko Stackebrandt ◽  
Reiner M. Kroppenstedt ◽  
Lihua Xu ◽  
...  

A coryneform strain isolated from soda lake mud in China corresponded in chemotaxonomic characteristics such as peptidoglycan type A4α l-lys–l-ser–d-Glu and major menaquinone MK-9, as well as in its DNA base composition (57 mol% G+C), to its phylogenetic neighbour Jonesia denitrificans. Differences in phenotypic characteristics and the phylogenetic distance (96·6 % 16S rRNA gene sequence similarity) from J. denitrificans justify the proposal of a second species of the genus Jonesia, Jonesia quinghaiensis sp. nov., with the type strain QH3A7T (=DSM 15701T=CGMCC 1.3459T).


2004 ◽  
Vol 54 (4) ◽  
pp. 1287-1293 ◽  
Author(s):  
Xiaolong Cui ◽  
Peter Schumann ◽  
Erko Stackebrandt ◽  
Reiner M. Kroppenstedt ◽  
Rüdiger Pukall ◽  
...  

Strain XLG9A10.2T was isolated from an alkaline salt marsh soil in western China. 16S rRNA gene sequence analysis indicated that strain XLG9A10.2T constitutes a distinct lineage within the family Promicromonosporaceae, sharing 94·8–95·1 % gene similarity with members of the genus Promicromonospora and 94·4–95·7 % similarity with those of Xylanimonas and related genera. The general colony and cell morphology of strain XLG9A10.2T is similar to that of members of Promicromonospora, but differs from members of the genus Xylanimonas in forming a well-developed branching mycelium and production of coccoid spores. Strain XLG9A10.2T shows the peptidoglycan type A4α (l-lys←l-thr←d-Glu), contains glucose, mannose and galactose as whole cell sugars and has MK-9(H4) and MK-9(H6) as major menaquinones, while phospholipids are phosphatidylglycerol, diphosphatidylglycerol, phosphatidylinositol, three unidentified phospholipids and one unidentified glycolipid. The DNA base composition is 71·9 mol% G+C. On the basis of morphological, chemotaxonomic, metabolic and phylogenetic differences from other species of Promicromonosporaceae, a new genus and species, Myceligenerans xiligouense gen. nov., sp. nov., is proposed. The type strain is XLG9A10.2T (=DSM 15700T=CGMCC 1.3458T.)


2006 ◽  
Vol 56 (11) ◽  
pp. 2609-2616 ◽  
Author(s):  
David E. Greenberg ◽  
Stephen F. Porcella ◽  
Frida Stock ◽  
Alexandra Wong ◽  
Patricia S. Conville ◽  
...  

A Gram-negative, aerobic, coccobacillus to rod-shaped bacterium was isolated from three patients with chronic granulomatous disease. The organism was subjected to a polyphasic taxonomic study. A multilocus phylogenetic analysis based on the 16S rRNA gene, the internal transcribed spacer (ITS) region and the RecA protein demonstrated that the organism belongs to a new sublineage within the acetic acid bacteria in the family Acetobacteraceae. Phenotypic features are summarized as follows: the organism grew at an optimum temperature of 35–37 °C and optimum pH of 5.0–6.5. It produced a yellow pigment, oxidized lactate and acetate, the latter weakly, produced little acetic acid from ethanol and could use methanol as a sole carbon source. The two major fatty acids were a straight-chain unsaturated acid (C18 : 1ω7c) and C16 : 0. The DNA base composition was 59.1 mol% G+C. The very weak production of acetic acid from ethanol, the ability to use methanol, the yellow pigmentation and high optimum temperature for growth distinguished this organism from other acetic acid bacteria. The unique phylogenetic and phenotypic characteristics suggest that the bacterium should be classified within a separate genus, for which the name Granulibacter bethesdensis gen. nov., sp. nov. is proposed. The type strain is CGDNIH1T (=ATCC BAA-1260T=DSM 17861T).


2020 ◽  
Author(s):  
CC Kim ◽  
WJ Kelly ◽  
ML Patchett ◽  
GW Tannock ◽  
Z Jordens ◽  
...  

© 2017 IUMS. A novel anaerobic pectinolytic bacterium (strain 14T) was isolated from human faeces. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain 14T belonged to the family Ruminococcaceae, but was located separately from known clostridial clusters within the taxon. The closest cultured relative of strain 14T was Acetivibrio cellulolyticus (89.7% sequence similarity). Strain 14T shared ~99% sequence similarity with cloned 16S rRNA gene sequences from uncultured bacteria derived from the human gut. Cells were Gram-stain-positive, non-motile cocci approximately 0.6μm in diameter. Strain 14T fermented pectins from citrus peel, apple, and kiwifruit as well as carbohydrates that are constituents of pectins and hemicellulose, such as galacturonic acid, xylose, and arabinose. TEM images of strain 14T, cultured in association with plant tissues, suggested extracellular fibrolytic activity associated with the bacterial cells, forming zones of degradation in the pectin-rich regions of middle lamella. Phylogenetic and phenotypic analysis supported the differentiation of strain 14T as a novel genus in the family Ruminococcaceae. The name Monoglobus pectinilyticus gen. nov., sp. nov. is proposed; the type strain is 14T (JCM 31914T=DSM 104782T).


2013 ◽  
Vol 63 (Pt_7) ◽  
pp. 2565-2569 ◽  
Author(s):  
Cynthia Alias-Villegas ◽  
Valme Jurado ◽  
Leonila Laiz ◽  
Cesareo Saiz-Jimenez

A Gram-stain-negative, aerobic, motile, rod-shaped bacterium, strain SC13E-S71T, was isolated from tuff, volcanic rock, where the Roman catacombs of Saint Callixtus in Rome, Italy, was excavated. Analysis of 16S rRNA gene sequences revealed that strain SC13E-S71T belongs to the genus Sphingopyxis , and that it shows the greatest sequence similarity with Sphingopyxis chilensis DSM 14889T (98.72 %), Sphingopyxis taejonensis DSM 15583T (98.65 %), Sphingopyxis ginsengisoli LMG 23390T (98.16 %), Sphingopyxis panaciterrae KCTC 12580T (98.09 %), Sphingopyxis alaskensis DSM 13593T (98.09 %), Sphingopyxis witflariensis DSM 14551T (98.09 %), Sphingopyxis bauzanensis DSM 22271T (98.02 %), Sphingopyxis granuli KCTC 12209T (97.73 %), Sphingopyxis macrogoltabida KACC 10927T (97.49 %), Sphingopyxis ummariensis DSM 24316T (97.37 %) and Sphingopyxis panaciterrulae KCTC 22112T (97.09 %). The predominant fatty acids were C18 : 1ω7c, summed feature 3 (iso-C15 : 0 2-OH and/or C16 : 1ω7c), C14 : 0 2-OH and C16 : 0. The predominant menaquinone was MK-10. The major polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine and sphingoglycolipid. These chemotaxonomic data are common to members of the genus Sphingopyxis . However, a polyphasic approach using physiological tests, DNA base ratios, DNA–DNA hybridization and 16S rRNA gene sequence comparisons showed that the isolate SC13E-S71T belongs to a novel species within the genus Sphingopyxis , for which the name Sphingopyxis italica sp. nov. is proposed. The type strain is SC13E-S71T ( = DSM 25229T = CECT 8016T).


2021 ◽  
Author(s):  
Dawoon Chung ◽  
Jaoon Young Hwan Kim ◽  
Kyung Woo Kim ◽  
Yong Min Kwon

Abstract A gram-negative, orange-pigmented, non-flagellated, gliding, rod-shaped, and aerobic bacterium, designated strain F202Z8T, was isolated from a rusty iron plate found in the intertidal region of Taean, South Korea. Notably, this strain synthesized silver nanoparticles (AgNPs), and 17 putative genes responsible for the synthesis of AgNPs were found in its genome. The complete genome sequence of strain F202Z8T is 4,723,614 bp, with 43.26% G + C content. Phylogenetic analysis based on 16S rRNA gene sequence revealed that strain F202Z8T forms a distinct lineage with closely related genera Maribacter, Pelagihabitans, Pseudozobellia, Zobellia, Pricia, and Costertonia belonging to the family Flavobacteriaceae. The 16S rRNA sequence similarity was < 94.5%. The digital DNA–DNA hybridization and average nucleotide identity values calculated from the whole genome-sequence comparison between strain F202Z8T and other members of the family Flavobacteriaceae were in the ranges of 12.7–16.9% and 70.3–74.4%, respectively. Growth was observed at 15–33°C (optimally at 30°C), at pH 6.5–7.5 (optimally at pH 7.0), and with the addition of 2.5–4.5% (w/v) NaCl to the media (optimally at 4.0%). The predominant cellular fatty acids were iso-C15: 0, iso-C15 :1 G, and iso-C17 :0 3-OH; the major respiratory quinone was MK-6. Polar lipids included phosphatidylethanolamine, five unidentified lipids, and two unidentified aminolipids. Our polyphasic taxonomic results suggested that this strain represents a novel species of a novel genus in the family Flavobacteriaceae, for which the name Aggregatimonas sangjinii gen. nov., sp. nov. is proposed. The type strain of Aggregatimonas sangjinii is F202Z8T (= KCCM 43411T = LMG 31494T).


Author(s):  
Hye Jeong Kang ◽  
Min-Kyeong Kim ◽  
Su Gwon Roh ◽  
Seung Bum Kim

A Gram-stain-negative, oxidase-positive, catalase-positive, aerobic, orange-pigmented, rod-shaped and non-motile bacterium designated strain MMS17-SY002T was isolated from island soil. The isolate grew at 20–37 °C (optimum, 30 °C), at pH 6.0–9.5 (optimum, pH 7) and in the presence of 0.5–4.0 % (w/v) NaCl (optimum, 2.0 %). Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain MMS17-SY002T was mostly related to the genus Muriicola of the family Flavobacteriaceae and had highest sequence similarity of 96.82 % to Muriicola marianensis A6B8T and Muriicola jejuensis EM44T, but formed a distinct phylogenetic line within the genus. Chemotaxonomic analyses showed that menaquinone 6 was the predominant isoprenoid quinone, the major fatty acids were iso-C15 : 1 G and iso-C15 : 0, and the diagnostic polar lipid was phosphatidylethanolamine. The genomic DNA G+C content was 42.4 mol%. Strain MMS17-SY002T could be distinguished from related species by the combination of trypsin, α-chymotrypsin, acid phosphatase, naphthol-AS-BI-phosphohydrolase, α-galactosidase, β-galactosidase and β-glucosidase activities. The orthologous average nucleotide identity between the genomes of strain MMS17-SY002T and M. jejuensis and that between the strain and M. marianensis A6B8T were 73.26 and 73.33%, respectively, thus confirming the separation of the strain from related species at species level. Based on the phenotypic, phylogenetic, chemotaxonomic and genomic characterization, MMS17-SY002T should be recognized as a novel species of the genus Muriicola , for which the name Muriicola soli sp. nov. is proposed. The type strain is MMS17-SY002T (=KCTC 62790T=JCM 32370T).


2012 ◽  
Vol 62 (Pt_9) ◽  
pp. 2163-2168 ◽  
Author(s):  
Yong-Taek Jung ◽  
Ji-Hoon Kim ◽  
So-Jung Kang ◽  
Tae-Kwang Oh ◽  
Jung-Hoon Yoon

A Gram-staining-negative, non-flagellated, non-gliding and pleomorphic bacterial strain, designated DPG-25T, was isolated from seawater in a seaweed farm in the South Sea in Korea and its taxonomic position was investigated by using a polyphasic approach. Strain DPG-25T grew optimally at 25 °C, at pH 7.0–7.5 and in the presence of 2 % (w/v) NaCl. Flexirubin-type pigments were not produced. Phylogenetic analyses based on 16S rRNA gene sequences revealed that strain DPG-25T formed a cluster with the type strains of Actibacter sediminis , Aestuariicola saemankumensis and Lutimonas vermicola . Strain DPG-25T exhibited 16S rRNA gene sequence similarity values of 95.3, 93.1 and 93.6 % to the type strains of Actibacter sediminis , Aestuariicola saemankumensis and L. vermicola , respectively. Strain DPG-25T contained MK-6 as the predominant menaquinone and iso-C15 : 0 and iso-C17 : 0 3-OH as the major fatty acids. The major polar lipids detected in strain DPG-25T were phosphatidylethanolamine and one unidentified lipid. The DNA G+C content was 39.9 mol%. Differential phenotypic properties and the phylogenetic distinctiveness of strain DPG-25T demonstrated that this strain is distinguishable from Actibacter sediminis , Aestuariicola saemankumensis and L. vermicola . On the basis of the data presented here, strain DPG-25T represents a novel species in a novel genus of the family Flavobacteriaceae , for which the name Namhaeicola litoreus gen. nov., sp. nov. is proposed. The type strain of Namhaeicola litoreus is DPG-25T ( = KCTC 23702T  = CCUG 61485T).


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