TL;DR: Phenotypic and genotypic analyses indicated that strain NS12(T) could not be assigned to any recognized species; therefore a new species designated Runella zeae sp.
Abstract: A Gram-negative bacterium, designated NS12(T), was previously isolated from duplicate treatments of surface-sterilized Zea mays stems. The plants were grown in synthetic soil under greenhouse conditions and watered with fertilizer containing no nitrogen. Strain NS12(T) was not isolated from plants watered with the standard level or 20% (w/v) of the standard level of nitrogen. Cells were bent rods that formed chains of irregular shapes in R2A broth. Unlike its closest described relative Runella slithyformis, strain NS12(T) fermented glucose and sucrose. The G+C content was 49 mol%. Phylogenetic analysis of the 16S rRNA gene showed that the strain was a member of the domain Bacteria and is most closely related to R. slithyformis, a member of the Flexibacter group within the Cytophaga-Flexibacter-Bacteroides phylum. Phenotypic and genotypic analyses indicated that strain NS12(T) could not be assigned to any recognized species; therefore a new species designated Runella zeae sp. nov. is proposed, for which NS12(T) ( = ATCC BAA-293(T) = LMG 21438(T)) is the type strain.
TL;DR: Based on the results of genotypic and phenotypic studies, strain YX9T represents a novel species within the genus Runella, for which the name Runella aurantiaca sp.
Abstract: A Gram-stain-negative, filamentous rod-shaped, aerobic and non-motile strain, YX9T, was isolated from sludge of a manganese mine. Analysis of the 16S rRNA gene sequence revealed that strain YX9T formed the same branch within the members of the genus
Runella
and showed high relatedness to
Runella slithyformis
DSM 19594T (98.1 %),
Runella palustris
HMF3829T (96.0 %) and
Runella zeae
NS12T (95.4 %). The genome length of strain YX9T was 7.21 Mb, had 5985 coding sequences and a DNA G+C content of 44.8 mol%. The average nucleotide identity value of the draft genomes between strain YX9T and
R
.
slithyformis
DSM 19594T was 80.7 %. The major fatty acids of strain YX9T were iso-C15 : 0, C16:1
ω5c and summed feature 3 (C16:1
ω7c and/or C16:1
ω6c). The predominant respiratory quinone was menaquinone 7. The polar lipids of strain YX9T were phosphatidylethanolamine, four unidentified lipids, two aminolipids, a phospholipid and a glycolipid. Based on the results of genotypic and phenotypic studies, strain YX9T represents a novel species within the genus
Runella
, for which the name
Runella
aurantiaca sp. nov. is proposed (=KCTC 62875T=CCTCC AB 2018214T).
TL;DR: On the basis of the evidence presented in this study, strain HMF3829T represents a novel species of the genus Runella, for which the name Runella palustris sp.
Abstract: A novel, Gram-stain-negative, aerobic, non-motile and filamentous bacterial strain, designated HMF3829T, was isolated from wetland freshwater in Gyeong-an wetland, Republic of Korea. A phylogenetic tree based on 16S rRNA gene sequences showed that strain HMF3829T formed a lineage within the genus
Runella
. Strain HMF3829T was closely related to
Runella slithyformis
DSM 19594T (95.2 % 16S rRNA gene sequence similarity),
Runella
limosa DSM 17973T (94.9 %),
Runella
zeae NS12T (94.2 %) and
Runella
defluvii EMB13T (94.0 %). The major fatty acids of strain HMF3829T were iso-C15 : 0, summed feature 3 (comprising C16 : 1ω7c and/or C16 : 1ω6c), C16 : 1ω5c and iso-C17 : 0 3-OH. The predominant isoprenoid quinone was menaquinone 7 (MK-7). The polar lipids of strain HMF3829T consisted of phosphatidylethanolamine, three unidentified aminolipids, one unidentified phospholipid, three unidentified aminophospholipids and 12 unidentified lipids. The DNA G+C content of strain HMF3829T was 46.2 mol%. On the basis of the evidence presented in this study, strain HMF3829T represents a novel species of the genus
Runella
, for which the name Runella palustris sp. nov. is proposed. The type strain is HMF3829T (=KCTC 42850T=CECT 8978T).