Abstract:
:One Gram-stain-negative, aerobic, motile bacterial strain, 3-7T, was isolated from symptomatic canker bark tissue of Populus × euramericana. 16S rRNA gene sequence data revealed that the novel isolate shared highest similarity with Sphingomonas panacis DCY99T (98.8 %), and <96.5 % sequence similarity with all other species with validly published names. Growth occurred between 15 and 37 °C and at pH 6.0-9.0, and optimal growth occurred at 30 °C and pH 7.0-8.0. Nitrogen was produced from nitrates. The strain was positive for acetoin production and activity of catalase, oxidase, β-galactosidase, arginine dihydrolase and β-glucosidase. The major fatty acids were C16 : 0, C18 : 1ω7c and/or C18 : 1ω6c. The polar lipids of the novel isolate included diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine, sphingoglycolipid, glycolipid, two uncharacterized phospholipids and two uncharacterized lipids. The respiratory quinones detected in isolate 3-7T were Q-10 (96.9 %) and Q-9 (3.1 %). The DNA G+C content was 65.1 mol%. Based on phenotypic and genotypic characteristics, the isolate represents a novel species within the genus Sphingomonas, for which the name Sphingomonas populi is proposed. The type strain is 3-7T (=CFCC 11561T=LMG 30138T).
journal_name
Int J Syst Evol Microbiolauthors
Li Y,Bian DR,Chang JP,Guo LM,Yang XQdoi
10.1099/ijsem.0.003841subject
Has Abstractpub_date
2020-02-01 00:00:00pages
897-901issue
2eissn
1466-5026issn
1466-5034journal_volume
70pub_type
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