Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich.
mehr Informationen...
Iodidimonas gelatinilytica sp. nov., aerobic iodide-oxidizing bacteria isolated from brine water and surface seawater
Ist Teil von
Antonie van Leeuwenhoek, 2021-05, Vol.114 (5), p.625-631
Ort / Verlag
Cham: Springer International Publishing
Erscheinungsjahr
2021
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
Chemo-organotrophic iodide (I
−
)-oxidizing bacterial strains Hi-2
T
and Mie-1 were isolated from iodide-rich natural gas brine water in Chiba and surface seawater in Mie, Japan, respectively. Cells of strains Hi-2
T
and Mie-1 were aerobic, Gram-negative and rod-shaped (0.3–0.5 µm width and 1.2–4.4 µm in length). Two isolates grew optimally at 30 °C, pH 7.5 and with 3% NaCl (w/v). Iodide oxidation to form molecular iodine (I
2
) was a biochemically unique trait for strains Hi-2
T
and Mie-1. The major cellular fatty acids are C
18:1
ω
7
c
, C
16:1
ω
5
c
and C
18:1
2-OH. A phylogenetic analysis based on the 16S rRNA gene sequence revealed that strains Hi-2
T
and Mie-1 were located near
Iodidimonas muriae
C-3
T
with 99.2% sequence similarity. The calculated digital DNA–DNA hybridization (dDDH) value of 65.7–65.9% between the two isolates and
I. muriae
C-3
T
was lower than the threshold of 70%, which was used for prokaryotic species delineation. Strains Hi-2
T
and Mie-1 differed in the hydrolysis of aesculin, the hydrolysis of gelatin and the major cellular fatty acids composition from
I. muriae
C-3
T
. Considering these biochemical properties, the major cellular fatty acids composition and dDDH value, a novel species is proposed for strains Hi-2
T
(= JCM 17844
T
= LMG 28661
T
) and Mie-1 (= JCM 17845 = LMG 28662), to be named
Iodidimonas gelatinilytica
.