scholarly journals Flavobacterium nitrogenifigens sp. nov., isolated from switchgrass (Panicum virgatum)

2015 ◽  
Vol 65 (Pt_9) ◽  
pp. 2803-2809 ◽  
Author(s):  
Peter Kämpfer ◽  
Hans-Jürgen Busse ◽  
John A. McInroy ◽  
Jia Xu ◽  
Stefanie P. Glaeser

A yellow, nitrogen-fixing bacterial strain, NXU-44T, isolated from the rhizosphere of switchgrass (Panicum virgatum) in Auburn, Alabama, USA, was studied to determine its taxonomic position. Cells of the isolate were rod-shaped and Gram-stain-negative. A comparison of the 16S rRNA gene sequence with the sequences of the type strains of the most closely related species showed that the strain belongs to the genus Flavobacterium with highest sequence similarities to the type strains of Flavobacterium ginsenosidimutans (97.9 %), Flavobacterium phragmitis (97.6 %) and Flavobacterium anhuiense (97.5 %). The 16S rRNA gene sequence similarities to all other species of the genus Flavobacterium were below 97.5 %. The fatty acid profile of strain NXU-44T consisted of the major fatty acids iso-C15 : 0, iso-C15 : 0 2-OH/C16 : 1ω7c and iso-C17 : 0 3-OH. The major compounds in the polar lipid profile were phosphatidylethanolamine, phosphatidylserine, one aminolipid and two polar lipids. The quinone system was composed exclusively of menaquinone MK-6. The polyamine pattern contained the major compound sym-homospermidine and only minor amounts of other polyamines. The diagnostic diamino acid of the peptidoglycan was meso-diaminopimelic acid. These data and the differential biochemical and chemotaxonomic properties show that strain NXU-44T represents a novel species of the genus Flavobacterium for which the name Flavobacterium nitrogenifigens sp. nov. is proposed. The type strain is NXU-44T ( = LMG 28694T = CIP 110894T).

2015 ◽  
Vol 65 (Pt_7) ◽  
pp. 2179-2186 ◽  
Author(s):  
Peter Kämpfer ◽  
Hans-Jürgen Busse ◽  
John A. McInroy ◽  
Stefanie P. Glaeser

A yellow-pigmented bacterial strain, 91A-612T, isolated from the geocarposphere (soil around the peanut) of very immature peanuts (Arachis hypogaea) in Alabama, USA, was studied for its taxonomic position. Cells of the isolate were rod-shaped and stained Gram-negative. A comparison of the 16S rRNA gene sequence with the sequences of the type strains of the most closely related species showed that the strain belongs to the genus Chryseobacterium, showing the highest sequence similarities to the type strains of Chryseobacterium molle (98.4 %), C. pallidum (98.3 %) and C. hominis (97.8 %). The 16S rRNA gene sequence similarities to the type strains of all other species of the genus Chryseobacterium were below 97.0 %. The fatty acid profile of strain 91A-612T consisted of the major fatty acids iso-C15 : 0, summed feature 3 (iso-C15 : 0 2-OH/C16 : 1ω7c) and iso-C17 : 0 3-OH. Major compounds in the polar lipid profile were phosphatidylethanolamine and several unidentified lipids, including two lipids that did not contain a sugar moiety, an amino group or a phosphate group (L3, L8), and an aminolipid (AL1). The quinone system was composed mainly of MK-6. The polyamine pattern contained sym-homospermidine as the major compound and moderate amounts of spermidine and spermine. DNA–DNA hybridizations between strain 91A-612T and the type strains of C. molle, C. pallidum and C. hominis resulted in relatedness values well below 70 %. These data and the differentiating biochemical and chemotaxonomic properties showed that isolate 91A-612T represents a novel species of the genus Chryseobacterium, for which we propose the name Chryseobacterium arachidiradicis sp. nov. (type strain 91A-612T = LMG 27814T = CCM 8490T = CIP 110647T).


2011 ◽  
Vol 61 (8) ◽  
pp. 1968-1972 ◽  
Author(s):  
Myungjin Lee ◽  
Song-Geun Woo ◽  
Giho Park ◽  
Myung Kyum Kim

A Gram-negative, non-motile bacterium, designated MJ17T, was isolated from sludge at the Daejeon sewage disposal plant in South Korea. Comparative 16S rRNA gene sequence analysis showed that strain MJ17T belonged to the genus Paracoccus in the family Rhodobacteraceae of the class Alphaproteobacteria. 16S rRNA gene sequence similarities between strain MJ17T and type strains of species of the genus Paracoccus were 94.1–97.4 %. The highest similarities were between strain MJ17T and Paracoccus homiensis DD-R11T, Paracoccus zeaxanthinifaciens ATCC 21588T and Paracoccus alcaliphilus JCM 7364T (97.4, 97.2 and 96.3 %, respectively). Strain MJ17T exhibited <22 % DNA–DNA relatedness with P. homiensis KACC 11518T and P. zeaxanthinifaciens JCM 21774T. The G+C content of the genomic DNA was 58.7 mol%. Strain MJ17T contained ubiquinone Q-10. The major fatty acids were C18 : 0 (11.3 %), C16 : 0 (10.2 %) and summed feature 7 (containing one or more of C18 : 1ω7c, C18 : 1ω9c and C18 : 1ω12t; 54.3 %). Poly-β-hydroxybutyrate granules are formed. On the basis of phenotypic and genotypic properties and phylogenetic distinctiveness, strain MJ17T should be classified in a novel species of the genus Paracoccus, for which the name Paracoccus caeni sp. nov. is proposed. The type strain is MJ17T ( = KCTC 22480T  = JCM 16385T  = KEMB 9004-001T).


2010 ◽  
Vol 60 (8) ◽  
pp. 1765-1769 ◽  
Author(s):  
Peter Kämpfer ◽  
A. B. Arun ◽  
Chiu-Chung Young ◽  
Wen-Ming Chen ◽  
K. R. Sridhar ◽  
...  

A bacterial strain (CC-VM-7T), isolated from the faeces of the pill millipede Arthrosphaera magna Attems collected in India, was studied to determine its taxonomic allocation. Cells stained Gram-negative and were rod-shaped. Comparative analyses of the 16S rRNA gene sequence of the strain with those of the most closely related species clearly suggested allocation to the genus Chryseobacterium, with the highest sequence similarities of 99.2 % to Chryseobacterium gleum CCUG 14555T, 98.6 % to Chryseobacterium indologenes CCUG 14556T and 98.4 % to Chryseobacterium aquifrigidense KCTC 12894T. 16S rRNA gene sequence similarities to all other species of the genus Chryseobacterium were below 98 %. The major whole-cell fatty acids were iso-C15 : 0 and iso-C17 : 1 ω9c. DNA–DNA hybridization resulted in relatedness values of only 29.6 % (reciprocal 31.3 %) to Chryseobacterium gleum CCUG 14555T, 41.2 % (reciprocal 38.8 %) to C. indologenes CCUG 14556T and 35.4 % (reciprocal 38.5 %) to C. aquifrigidense KCTC 12894T. DNA–DNA relatedness, biochemical and chemotaxonomic properties clearly show that strain CC-VM-7T represents a novel species, for which the name Chryseobacterium arthrosphaerae sp. nov. is proposed. The type strain is CC-VM-7T (=CCUG 57618T =CCM 7645T).


2010 ◽  
Vol 60 (10) ◽  
pp. 2387-2391 ◽  
Author(s):  
Peter Kämpfer ◽  
Kshitij Chandel ◽  
G. B. K. S. Prasad ◽  
Y. S. Shouche ◽  
Vijay Veer

A yellow-pigmented bacterial strain, R4-1AT, isolated from the midgut of the mosquito Culex quinquefasciatus (a vector of lymphatic filariasis), was studied using a polyphasic approach. Cells of the isolate were rod-shaped and stained Gram-negative. A comparison of the 16S rRNA gene sequence of this organism with sequences of type strains of the most closely related species clearly showed an allocation to the genus Chryseobacterium, with the highest sequence similarities (all 97.9 %) to Chryseobacterium jejuense JS17-8T, C. indologenes ATCC 29897T, C. arthrosphaerae CC-VM-7T and C. aquifrigidense CW9T. 16S rRNA gene sequence similarities to type strains of other Chryseobacterium species were below 97.5 %. The fatty acid profile of strain R4-1AT included the major fatty acids iso-15 : 0, summed feature 4 (comprising iso-15 : 0 2-OH and/or 16 : 1ω7c), iso-17 : 1ω9c and iso-17 : 0 3-OH. DNA–DNA hybridizations with C. jejuense KACC 12501T, C. indologenes CCUG 14556T, C. arthrosphaerae CC-VM-7T and C. aquifrigidense KCTC 12894T resulted in relatedness values of 38.3 % (reciprocal 30.5 %), 29.4 % (32.1 %), 23.2 % (37.2 %) and 29.5 % (47.1 %), respectively. These results and the differentiating biochemical and chemotaxonomic properties show that strain R4-1AT represents a novel species, for which the name Chryseobacterium culicis sp. nov. is proposed. The type strain is R4-1AT (=LMG 25442T =CCM 7716T).


2010 ◽  
Vol 60 (6) ◽  
pp. 1353-1357 ◽  
Author(s):  
P. Kämpfer ◽  
E. Falsen ◽  
N. Lodders ◽  
P. Schumann

The taxonomic positions of two Gram-positive, endospore-forming rods, strains CCUG 53915T and CCUG 53480T, isolated from an industrial clean-room floor and from a human blood sample, respectively, were studied. 16S rRNA gene sequence similarity studies revealed that both isolates clearly clustered with Sporosarcina species. Strain CCUG 53915T was most closely related to Sporosarcina koreensis and Sporosarcina soli, showing 99.4 and 99.2 % 16S rRNA gene sequence similarities to the type strains of these species, respectively. Strain CCUG 53480T showed the highest 16S rRNA gene sequence similarities to the type strains of S. koreensis (98.7 %) and Sporosarcina saromensis (98.6 %). Strains CCUG 53915T and CCUG 53480T had peptidoglycan type A4α l-Lys–d-Glu. The quinone systems of both strains were composed predominantly of menaquinone MK-7, with small amounts of MK-8. The polar lipid profiles of both strains consisted of phosphatidylglycerol, diphosphatidylglycerol, phosphatidylethanolamine and three unidentified phospholipids. The fatty acid profiles, which comprise anteiso- and iso-branched fatty acids, supported affiliation of the two isolates to the genus Sporosarcina. The results of physiological and biochemical tests and DNA–DNA hybridization data allowed a clear phenotypic and genotypic differentiation of both strains from the most closely related Sporosarcina species. For this reason, it is proposed that strains CCUG 53915T (=DSM 22204T) and CCUG 53480T (=DSM 22203T) represent two novel species in the genus Sporosarcina, with the names Sporosarcina contaminans sp. nov. and Sporosarcina thermotolerans sp. nov., respectively.


2015 ◽  
Vol 65 (Pt_11) ◽  
pp. 4019-4024 ◽  
Author(s):  
Peter Kämpfer ◽  
Hans-Jürgen Busse ◽  
John A. McInroy ◽  
Stefanie P. Glaeser

A slightly yellow-pigmented strain (IMT-174T) isolated from a river sediment in Guyana was studied in detail for its taxonomic position. Cells of the isolate appeared rod-shaped and stained Gram-negative. Comparative 16S rRNA gene sequence analysis showed that the isolate had the highest sequence similarities to type strains of Chryseobacterium rhizoplanae (99.0 %), Chryseobacterium viscerum (98.9 %), Chryseobacterium lactis (98.8 %) and Chryseobacterium indologenes (98.6 %). The 16S rRNA gene sequence similarities to all other species of the genus Chryseobacterium were below 98.5 %. Fatty acid analysis of whole-cell hydrolysates of the strain resulted in a pattern typical of members of the genus Chryseobacterium, with fatty acids iso-C15 : 0, iso-C15 : 0 2-OH, iso-C17 : 1ω9c and iso-C17 : 0 3-OH as major compounds. The polyamine pattern contained predominantly sym-homospermidine. The major quinone was menaquinone MK-6 and the only lipid identified in the polar lipid profile was phosphatidylethanolamine. In addition, 13 unidentified lipids were detected in moderate to major amounts. DNA–DNA hybridizations with type strains of C. rhizoplanae, C. viscerum, C. lactis and C. indologenes resulted in values below 70 %. In addition to the genotypic differences, differentiating biochemical and chemotaxonomic properties confirmed that isolate IMT-174T represents a novel species, for which the name Chryseobacterium sediminis sp. nov. (type strain IMT-174T = LMG 28695T = CIP 110895T) is proposed.


2007 ◽  
Vol 57 (8) ◽  
pp. 1721-1724 ◽  
Author(s):  
Myung Kyum Kim ◽  
Hee-Young Jung

A novel strain, designated KP01T, belonging to the class Sphingobacteria (phylum Bacteroidetes) was isolated from soil in South Korea and was characterized taxonomically using a polyphasic approach. The strain was found to comprise Gram-negative, aerobic, non-motile, non-spore-forming rods. A phylogenetic analysis based on 16S rRNA gene sequences indicated that the strain belonged to the genus Chitinophaga but was clearly separated from established Chitinophaga species. The 16S rRNA gene sequence similarities between KP01T and type strains of established Chitinophaga species ranged from 90.3 to 95.7 %. Phenotypic and chemotaxonomic data (major menaquinone, MK-7; major fatty acids, iso-C15 : 0 and C16 : 1 ω5c; major hydroxy fatty acid, C17 : 0 iso 3-OH) supported the affiliation of strain KP01T with the genus Chitinophaga. Therefore strain KP01T represents a novel species, for which the name Chitinophaga terrae sp. nov. is proposed. The type strain is KP01T (=KCTC 12836T =LMG 24015T).


2010 ◽  
Vol 60 (11) ◽  
pp. 2592-2595 ◽  
Author(s):  
De-Chao Zhang ◽  
Franz Schinner ◽  
Rosa Margesin

A Gram-negative, aerobic, rod-shaped, non-motile bacterium, designated BZ42T, was isolated from the soil of an industrial site. Strain BZ42T was able to grow at 5–25 °C. The major fatty acids were iso-C15 : 0 (46.2 %), C16 : 1 ω7c and/or iso-C15 : 0 2-OH (23.2 %) and iso-C17 : 0 3-OH (9.1 %). The predominant menaquinone was MK-7. The genomic DNA G+C content was 36.5 mol% (HPLC). 16S rRNA gene sequence phylogenetic analysis revealed that strain BZ42T was a member of the genus Pedobacter, family Sphingobacteriaceae, and 16S rRNA gene sequence similarities between strain BZ42T and the type strains of species of the genus Pedobacter with validly published names were 90.4–93.2 %. On the basis of phenotypic, chemotaxonomic and phylogenetic distinctiveness, strain BZ42T was considered to represent a novel species of the genus Pedobacter, for which the name Pedobacter bauzanensis sp. nov. is proposed. The type strain is BZ42T (=DSM 22554T =CGMCC 1.10187T =CIP 110134T).


2005 ◽  
Vol 55 (3) ◽  
pp. 1301-1304 ◽  
Author(s):  
Fo-Ting Shen ◽  
Peter Kämpfer ◽  
Chiu-Chung Young ◽  
Wei-An Lai ◽  
A. B. Arun

A bacterial strain (CC-TWGS1-8T) isolated from a tar-contaminated soil in Taiwan was studied in a detailed taxonomic study. The cells were Gram-negative, rod-shaped and non-spore-forming. Phylogenetic analyses using the 16S rRNA gene sequence of the strain clearly revealed an affiliation to the genus Chryseobacterium, the highest sequence similarities being to the type strain of Chryseobacterium indologenes (96·8 %), to Chryseobacterium gleum (96·8 %) and to Chryseobacterium joostei (96·4 %). The 16S rRNA gene sequence similarities to all other Chryseobacterium species were below 96 %. The major whole-cell fatty acids were 15 : 0 iso (35·4 %) and 17 : 0 iso 3OH (22·5 %). DNA–DNA hybridization values and the biochemical and chemotaxonomic properties demonstrate that strain CC-TWGS1-8T represents a novel species, for which the name Chryseobacterium taichungense sp. nov. is proposed. The type strain is CC-TWGS1-8T (=CCUG 50001T=CIP 108519T).


2007 ◽  
Vol 57 (12) ◽  
pp. 2810-2813 ◽  
Author(s):  
Hang-Yeon Weon ◽  
Byung-Yong Kim ◽  
Seung-Beom Hong ◽  
Young-Ah Jeon ◽  
Soon-Wo Kwon ◽  
...  

Two bacterial isolates from ginseng fields in Korea, strains GR17-7T and GP18-1T, were characterized using a polyphasic approach. Phylogenetic analysis of their 16S rRNA gene sequences revealed a clear affiliation with the Gammaproteobacteria, and showed that the closest phylogenetic relationships were with members of the genus Rhodanobacter. The 16S rRNA gene sequence similarity between strains GR17-7T and GP18-1T was 97.2 %. Both strains showed 16S rRNA gene sequence similarities of 95.2–96.9 % to type strains of recognized Rhodanobacter species. The G+C contents of the DNA of strains GR17-7T and GP18-1T were 61.0 and 62.5 mol%, respectively. According to the DNA–DNA hydridization tests, the hybridization value between strains GR17-7T and GP18-1T was 34 %. Strains GR17-7T and GP18-1T showed less than 32 % DNA–DNA relatedness with Rhodanobacter fulvus KCTC 12098T and Rhodanobacter spathiphylli LMG 23181T. Strains GR17-7T and GP18-1T were aerobic, Gram-negative, rod-shaped, and catalase- and oxidase-positive. Major fatty acids of both strains were iso-C17 : 1 ω9c and iso-C16 : 0. Based on the data presented, two novel Rhodanobacter species are proposed, with the names Rhodanobacter ginsengisoli sp. nov. (type strain GR17-7T=KACC 11762T=DSM 18993T) and Rhodanobacter terrae sp. nov. (type strain GP18-1T=KACC 11761T=DSM 19241T).


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