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- Title
Paludisphaera rhizosphaereae sp. nov., a new member of the family Isosphaeraceae, isolated from the rhizosphere soil of Erianthus ravennae.
- Authors
Lhingjakim, Khongsai L.; Smita, Nandardhane; Kumar, Gaurav; Jagadeeshwari, Uppada; Ahamad, Shabbir; Sasikala, Chintalapati; Ramana, Chintalapati Venkata
- Abstract
Two axenic cultures of Planctomycetota were isolated from distinct geographical locations of India. Strain JC665T was isolated from a rhizosphere soil of Loktak lake, Manipur, whereas strain JC747 was isolated from a soil sediment at Pallikkara village, Kerala, India. The two closely related strains shared the highest 16S rRNA gene sequence identity (94.6%) with Paludisphaera borealis PX4T, while the 16S rRNA gene sequence identity between both strains was 100%. Both strains grow aerobically, stain Gram negative, colonies are light pink-coloured, cells are non-motile, spherical to oval-shaped and tolerate NaCl up to 2% (w/v). While strain JC665T grows well up to pH 9.0, strain JC747 grows only up to pH 8.0. The respiratory quinone in both strains is MK-6. C16:0, C18:1ω9c and C18:0 are the major fatty acids. Phosphatidylcholine, two unidentified glycolipids, seven unidentified lipids and two unidentified phospholipids made up the polar lipid composition of both strains. Both strains have genome sizes of about 8.0 Mb and a DNA G + C content of 66.4 mol%. Both strains contain genes coding for enzymes putatively involved in the production of lycopene-related carotenoids. The phylogenetic position together with the results of the analysis of morphological, physiological and genomic features support the classification of strain JC665T as a new species of the genus Paludisphaera, for which we propose the name Paludisphaera rhizosphaerae sp. nov. Strain JC665T (= KCTC 72671 T = NBRC 114305 T) and JC747 are the type and non-type strain of the new species, respectively.
- Subjects
MANIPUR (India); INDIA; MOUNTAIN soils; LYCOPENE; RHIZOSPHERE; GRAM-negative bacteria; AXENIC cultures; SOILS; GLYCOLIPIDS
- Publication
Antonie van Leeuwenhoek, 2022, Vol 115, Issue 8, p1073
- ISSN
0003-6072
- Publication type
Article
- DOI
10.1007/s10482-022-01758-0