Parageobacillus yumthangensis
Taxonomy
Morphology
Growth conditions
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Caryophanales, Family Bacillaceae, Genus Parageobacillus, Parageobacillus
yumthangensis
 (Najar et al. 2018) Najar et al. 2020.
Synonym:
Geobacillus yumthangensis Najar et al. 2018.
Species description is based on a single isolate.
Gram-positive rods, 0.4-0.6 x 2.5-5 µm. Motile. Produce spores located at the sub-
terminal to terminal positions.
Grows at temperatures ranging from 40 ºC to 70 ºC, with optimal growth at 60 ºC, at
pH
6-10 with optimal growth at pH 7.5-8.0 and at 0-5%, NaCl , optimum 1%.
Isolated from Yumthang hot spring, North Sikkim, India.
Unknown (none).
  1. Najar IN, Sherpa MT, Das S, Verma K, Dubey VK, Thakur N. Geobacillus yumthangensis sp. nov., a thermophilic bacterium isolated
    from a north-east Indian hot spring. Int J Syst Evol Microbiol 2018; 68:3430-3434.
  2. Najar IN, Das S, Thakur N. Reclassification of Geobacillus galactosidasius and Geobacillus yumthangensis as Parageobacillus
    galactosidasius comb. nov. and Parageobacillus yumthangensis comb. nov., respectively. Int J Syst Evol Microbiol 2020; 70:6518-
    6523.
Positive results for catalase, aesculin hydrolysis, starch hydrolysis, acid production from: cellobiose, lactose, galactose, glucose and
sorbitol.
Can utilize:
lactate, formate and acetate.

Negative results for casein hydrolysis, gelatine hydrolysis
, methyl red test, acid production from: arabinose, ribose and xylose.
(c) Costin Stoica
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