Shinella kummerowiae sp. nov., a symbiotic bacterium isolated from root nodules of the herbal legume Kummerowia stipulacea.
Bacterial strain CCBAU 25048(T) was isolated from root nodules of Kummerowia stipulacea grown in Shandong province of China. Cells of the strain were Gram-negative, strictly aerobic, non-spore-forming, motile short rods. Phylogeny of 16S rRNA gene sequences revealed that the strain belonged to the genus Shinella, a member of family Rhizobiaceae. Its closest phylogenetic relatives were Shinella granuli Ch06(T) and Shinella zoogloeoides IAM 12669(T), respectively showing 98.3 and 98.9 % 16S rRNA gene sequence similarity. Strain CCBAU 25048(T) had DNA-DNA relatedness of 43.5 and 34.8 %, respectively, with S. zoogloeoides JCM 20728(T) and S. granuli JCM 13254(T). In addition, in TP-RAPD analysis, different patterns were obtained for these three strains and some rhizobial strains. The nifH, nodC and nodD sequences of CCBAU 25048(T) were identical or very similar to those of bean-nodulating Rhizobium tropici strains. Several phenotypic characteristics, including the use of citrate and d-ribose as carbon sources and growth at pH 11.0, as well as the fatty acid composition, could differentiate CCBAU 25048(T) from the two defined Shinella species. Therefore, a novel species Shinella kummerowiae sp. nov. is proposed, with strain CCBAU 25048(T) (=JCM 14778(T) =LMG 24136(T)) as the type strain.
Key Laboratory of Agro-Microbial Resource and Application, Ministry of Agriculture/College of Biological Sciences, China Agricultural University, Beijing 100094, PR China.
Dong Xu
DX
Lin
En Tao
ET
Wang
Hui
H
Tang
Tian Xu
TX
Han
Yu Rong
YR
He
Su Hua
SH
Guan
Wen Xin
WX
Chen
D001426:Bacterial Proteins / Q000235:genetics; D015373:Bacterial Typing Techniques; D002681:China; D004269:DNA, Bacterial / Q000032:analysis; D004275:DNA, Ribosomal / Q000032:analysis; D007887:Fabaceae / Q000382:microbiology*; D005227:Fatty Acids / Q000032:analysis; D020459:Genes, rRNA; D008969:Molecular Sequence Data; D009586:Nitrogen Fixation; D009693:Nucleic Acid Hybridization; D010641:Phenotype; D010802:Phylogeny; D018517:Plant Roots / Q000382:microbiology*; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D019105:Random Amplified Polymorphic DNA Technique; D012230:Rhizobiaceae / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification*; D017422:Sequence Analysis, DNA; D013045:Species Specificity; D013559:Symbiosis
D001426:Bacterial Proteins; D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D005227:Fatty Acids; D012336:RNA, Ribosomal, 16S