| Priestia filamentosa |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Caryophanales, Family Bacillaceae, Genus Priestia, Priestia filamentosa (Sonalkar
et al. 2015) Gupta et al. 2020.
Synonym: Bacillus filamentosus Sonalkar et al. 2015.
Species description is based on a single isolate.
et al. 2015) Gupta et al. 2020.
Synonym: Bacillus filamentosus Sonalkar et al. 2015.
Species description is based on a single isolate.
Gram-positive rods, 0.7-0.8 x 4.0-4.4 μm, occurring in long filamentous chains. Non-
motile. Produce ellipsoidal endospores are located terminally in a swollen sporangium.
motile. Produce ellipsoidal endospores are located terminally in a swollen sporangium.
Colonies are circular, pale orange in colour, slimy with entire indented edges,
about 1.5-3 mm diameter. Growth occurs at 20-45 ºC, at pH 7.0-10.0 and in 0-7%
(w/v) NaCl concentration. Optimum growth occurs at 30 ºC, at pH 7.0-7.5 and in
0-5% (w/v) NaCl. Grows on Nutrient agar. Strictly aerobic.
about 1.5-3 mm diameter. Growth occurs at 20-45 ºC, at pH 7.0-10.0 and in 0-7%
(w/v) NaCl concentration. Optimum growth occurs at 30 ºC, at pH 7.0-7.5 and in
0-5% (w/v) NaCl. Grows on Nutrient agar. Strictly aerobic.
Isolated from a sediment sample collected from the intertidal region of mangroves at Chorao Island in Goa, India.
Undetermined.
- Sonalkar VV, Mawlankar R, Venkata Ramana V, Joseph N, Shouche YS, Dastager SG. Bacillus filamentosus sp. nov., isolated
from sediment sample. Antonie Van Leeuwenhoek 2015; 107:433-441. - Gupta RS, Patel S, Saini N, Chen S. Robust demarcation of 17 distinct Bacillus species clades, proposed as novel Bacillaceae
genera, by phylogenomics and comparative genomic analyses: description of Robertmurraya kyonggiensis sp. nov. and proposal
for an emended genus Bacillus limiting it only to the members of the Subtilis and Cereus clades of species. Int J Syst Evol
Microbiol 2020; 70:5753-5798.
Positive results for catalase, citrate utilization, aesculin hydrolysis, oxidase, acid production from: L-arabinose, glucose (without gas
production), mannitol, melibiose, raffinose, rhamnose, sorbitol, trehalose and xylose.
Negative results for arginine dihydrolase, caseinase, gelatinase, beta-galactosidase (ONPG), gluconate utilization, H2S production,
indole production, lysine decarboxylase, malonate utilization, nitrate reduction, ornithine decarboxylase, phenylalanine deaminase,
starch hydrolysis, urease, Voges-Proskauer test, acid production from: adonitol, arabitol, erythritol, galactose, meso-inositol, inulin,
lactose, mannose, melezitose, methyl-alpha-D-glucoside, methyl-alpha-D-mannoside, sucrose and xylitol.
production), mannitol, melibiose, raffinose, rhamnose, sorbitol, trehalose and xylose.
Negative results for arginine dihydrolase, caseinase, gelatinase, beta-galactosidase (ONPG), gluconate utilization, H2S production,
indole production, lysine decarboxylase, malonate utilization, nitrate reduction, ornithine decarboxylase, phenylalanine deaminase,
starch hydrolysis, urease, Voges-Proskauer test, acid production from: adonitol, arabitol, erythritol, galactose, meso-inositol, inulin,
lactose, mannose, melezitose, methyl-alpha-D-glucoside, methyl-alpha-D-mannoside, sucrose and xylitol.
(c) Costin Stoica
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