In silico analysis of sporulene biosynthesis pathway genes in the members of the class Bacilli.

Sporulene, a pentacyclic triterpenoid, was discovered in Bacillus subtilis and is associated with bacterial endospores. However, the study was not further extended, leaving a trail of questions. One such question is what diversity of sporulenes exists among spore-forming members? Considering the sporulene biosynthesis pathway as a fundamental tool to survey the distribution of this molecule, a genome mining study was conducted.

Paludisphaera rhizosphaereae sp. nov., a new member of the family Isosphaeraceae, isolated from the rhizosphere soil of Erianthus ravennae.

Two axenic cultures of Planctomycetota were isolated from distinct geographical locations of India. Strain JC665 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.

Phylotaxogenomics for the Reappraisal of the Genus With the Creation of Six New Genera.

The genus is a significant group of bacteria which is invariably of great clinical and ecological importance. Previous studies have shown that the genus is polyphyletic in nature. Our present study focused on generating a lucid understanding of the phylogenetic framework for the re-evaluation and reclassification of the genus Phylogenetic studies based on the 16S rRNA gene and 92 concatenated genes suggested that the genus is heterogeneous, forming seven major groups.

Mesobacillus aurantius sp. nov., isolated from an orange-colored pond near a solar saltern.

An endospore producing, strict aerobic, Gram-stain-positive, orange-colored colony forming bacterium designated as strain JC1013 was isolated from an orange pond near a solar saltern of Tamil Nadu, India. Phylogenetic analysis of the 16S rRNA gene sequences indicated that strain was affiliated to the family Bacillaceae of the phylum Firmicutes. Strain showed highest 16S rRNA gene sequence identity of 98.

Arenibacter lacus sp. nov., Isolated from Chilika Lagoon, India.

A shiny dark yellow pigmented, Gram-stain-negative, rod-shaped, non-motile bacterium, designated as strain JC631, was isolated from the sediment ecosystem of Chilika lagoon, India. Strain JC631 tolerates up to pH 10 and NaCl up to 3% (w/v). MK6 is the only respiratory quinone.

sp. nov., an indole-producing bacterium isolated from the rhizosphere of an orchid, .

A Gram-stain-negative, non-motile, coccoid-shaped, catalase- and oxidase-positive, non-denitrifying, neutrophilic bacterium designated as strain JC501 was isolated from an epiphytic rhizosphere of an orchid, , growing in the Western Ghats of India. Phylogenetic analyses based on the 16S rRNA gene sequence indicated that strain JC501 belonged to the genus and had the highest levels of sequence identity with KKL-A5 (98.9 %), WPAn02 (97.