Xanthomonas protegens sp. nov., a novel rice seed-associated bacterium, provides in vivo protection against X. oryzae pv. oryzae, the bacterial leaf blight pathogen.

Historically, Xanthomonas species are primarily known for their pathogenicity against plants, but recently, there have been more findings of non-pathogenic xanthomonads. In the present study, we report isolates from healthy rice seeds that belong to a new species, Xanthomonas protegens, a protector of the rice plants against a serious pathogenic counterpart, i.e.

Sporosarcina hypophthalmichthys sp. nov. Isolated From Gastrointestinal Tract of Fish Hypophthalmichthys molitrix (Valenciennes, 1844).

A rod-shaped, motile, Gram-stain-positive bacterial strain RKN2, was isolated from gut of silver carp (Hypophthalmichthys molitrix) residing in Gobindsagar reservoir, Himachal Pradesh, India. Having the greatest sequence similarity to Sporosarcina koreensis F73 (98.51%), Sporosarcina luteola Y1 (98.

Chromobacterium indicum sp. nov., a Pigment-Producing Bacterium Isolated from Soil.

A purple colony, designated as TRC1.1.SA was isolated from a tea garden soil sample.

Evaluation of Human Dental Plaque Lactic Acid Bacilli for Probiotic Potential and Functional Analysis in Relevance to Oral Health.

Unlabelled: Members of the lactic acid bacillus group are well-known probiotics and primarily isolated from fermented food, dairy products, intestinal and gut environment of human. Since probiotics from the human source are preferred, there exists a huge repertoire of lactobacilli in the human oral cavity which could prove a much better niche to be exploited for these beneficial microorganisms. Therefore, in this study, four lactobacilli strains, including strain DISK7, reported earlier, isolated from dental plaque samples of a healthy humans were evaluated for their probiotic potential.

Lysobacter arvi sp. nov. Isolated from Farmland Soil.

A bacterial strain designated as UC was isolated from farmland soil. Strain UC formed a pale yellow colony on nutrient agar. Cell morphology revealed it as the rod-shaped bacterium that stained Gram-negative.

An antimicrobial thiopeptide producing novel actinomycetes sp. nov., isolated from subsurface soil of arable land.

An antimicrobial producing Gram-positive, aerobic, nonmotile, and filamentous actinobacterial strain SKN60 was isolated from soil The isolate exhibited 99.3% and 99.0% identity with ATCC 31255 and TRM 44457, respectively, in 16S rRNA gene sequence analysis.

Brevicillin, a novel lanthipeptide from the genus Brevibacillus with antimicrobial, antifungal, and antiviral activity.

Aim: This study was aimed to determine antimicrobial and antiviral activity of a novel lanthipeptide from a Brevibacillus sp. for disinfectant application.

Methods And Results: The antimicrobial peptide (AMP) was produced by a bacterial strain AF8 identified as a member of the genus Brevibacillus representing a novel species.

Limosilactobacillus walteri sp. nov., a novel probiotic antimicrobial lipopeptide-producing bacterium.

A Gram-positive facultative anaerobe, nonspore forming, and nonmotile bacterial strain M31 was isolated from faecal contaminated soil. The strain is previously reported to produce a novel antimicrobial lipopeptide and displayed probiotic properties. The strain M31 is catalase negative and fermented d-galactose, d-glucose, esculin, d-maltose, d-lactose, d-melibiose, d-raffinose, d-saccharose (weak reaction), d-xylose (weak reaction), d-ribose (weak reaction), and l-arabinose (weak reaction).

Taxonomic and genomic characterization of Sporosarcina cyprini sp. nov., moderately tolerant of Cr and Cd isolated from the gut of invasive fish Cyprinus carpio var. communis (Linn., 1758).

A Gram-stain-positive, motile, and rod-shaped bacterium, designated as strain MB25, was isolated from the gut of Cyprinus carpio from the highly polluted river Yamuna, India. Phylogenetic analysis based on 16S rRNA gene sequence revealed that strain MB25 belonged to the genus Sporosarcina, sharing the highest sequence similarity with S. luteola Y1 (98.

Lacrimispora defluvii PI-S10-B5A sp. nov., an Obligate Anaerobe, Isolated from an Industrial Waste and Reclassification of Hungatella xylanolytica as Lacrimispora xylanolytica and Clostridium indicum as Lacrimispora indica Comb. nov.

A bacterial strain was isolated from the waste slurry of an industrial effluent treatment plant near Patancheru, Hyderabad, India, and designated as PI-S10-B5A. It was an obligately anaerobic, spore-forming, rod-shaped, motile bacterium that stained Gram-positive. The strain revealed high 16S rRNA gene sequence identity with Hungatella xylanolytica DSM 3808 (99.

sp. nov., isolated from glacial habitats of maritime Antarctica.

Strains P8930 and 478 were isolated from Antarctic glaciers located on James Ross Island and King George Island, respectively. They comprised Gram-stain-negative short rod-shaped cells forming pink pigmented colonies and exhibited identical 16S rRNA gene sequences and highly similar MALDI TOF mass spectra, and hence were assigned as representatives of the same species. Phylogenetic analysis based on 16S rRNA gene sequences assigned both isolates to the genus and showed and to be their closest phylogenetic neighbours, with 97.

A comparative study of in-vitro and in-silico anti-candidal activity and GC-MS profiles of snow mountain garlic vs. normal garlic.

Aim: The study aimed to profile the volatile phytocomposition of snow mountain garlic (SMG) compared to normal garlic and investigate the anti-Candida efficacy against clinically relevant multi-drug resistant isolates of Candida species.

Methods And Results: Herein, SMG has shown significantly superior fungicidal power at 2x-MIC dose against C. albicans and C.

Xanthomonas sontii sp. nov., a non-pathogenic bacterium isolated from healthy basmati rice (Oryza sativa) seeds from India.

We report three yellow-pigmented, Gram-negative, aerobic, rod-shaped, motile bacterial isolates designated as PPL1, PPL2, and PPL3 from healthy basmati rice seeds. Phenotypic and 16S rRNA gene sequence analysis assigned these isolates to the genus Xanthomonas. The 16S rRNA showed a 99.

Characterization of Iturin V, a Novel Antimicrobial Lipopeptide from a Potential Probiotic Strain Lactobacillus sp. M31.

Members of lactic acid bacteria group are known to produce various antimicrobial substances. Cyclic lipopeptides are one such potent class of amphipathic natural biosurfactants that exhibit bactericidal and immunomodulatory properties. In this study, we aimed to investigate antimicrobial and immunomodulatory activities of a lipopeptide secreted by a LAB isolate strain M31 identified as a member of the genus Lactobacillus.

Improvisation and Evaluation of Laterosporulin Coated Titanium Surfaces for dental Applications: An In Vitro Investigation.

Despite recent improvement in implant survival rates, there remains a significant demand for enhancing the long-term clinical efficacy of titanium (Ti) implants, particularly for the prevention of peri-implantitis. Bioactive substances such as antimicrobial peptides are emerging as effective alternatives for contemporary antimicrobial agents used in dental health care. Current research work was focused to use laterosporulins that are non-haemolytic cationic antimicrobial peptides from spp.

sp. nov. and sp. nov., isolated from regoliths in Antarctica.

A group of four psychrotrophic bacterial strains was isolated on James Ross Island (Antarctica) in 2013. All isolates, originating from different soil samples, were collected from the ice-free northern part of the island. They were rod-shaped, Gram-stain-negative, and produced moderately slimy red-pink pigmented colonies on R2A agar.

sp. nov. and sp. nov., isolated from calcite moonmilk deposits from caves.

A taxonomic study of two fluorescent strains (HJ/4 and SJ/9/1) isolated from calcite moonmilk samples obtained from two caves in the Moravian Karst in the Czech Republic was carried out. Results of initial 16S rRNA gene sequence analysis assigned both strains into the genus and showed 8H1 as their closest neighbour with 99.8 and 99.

Paraclostridium dentum, a novel species with pathogenic features isolated from human dental plaque sample.

A strictly anaerobic bacterial strain designated as SKVG24 was isolated from subgingival dental plaque samples of patients suffering from periodontitis. Cells were stained Gram-positive, rod shaped with endospore. The strain showed negative reaction to catalase and oxidase enzymes, but positive for gelatinase activity.

Surfactin Like Broad Spectrum Antimicrobial Lipopeptide Co-produced With Sublancin From Strain A52: Dual Reservoir of Bioactives.

An antimicrobial substance producing strain designated as A52 was isolated from a marine sediment sample and identified as sp., based on 16S rRNA gene sequence analysis. The ANI and dDDH analysis of the genome sequence displayed high identity with two strains of sub sp.

sp. nov., isolated from the gut of mirror carp, var. .

A novel orange to pink coloured bacterial strain designated as CT19 was isolated from the gastrointestinal tract of mirror carp, var. (Lacepède, 1803) collected from the Gobind Sagar reservoir at village Lathiani, Una, Himachal Pradesh, India. Cells of the strain were found to be aerobic, Gram-stain-positive, non-motile and non-spore-forming coccoids.

Bacterial Populations in Subgingival Plaque Under Healthy and Diseased Conditions: Genomic Insights into Oral Adaptation Strategies by sp. Strain DISK7.

Human oral cavity is a complex habitat comprising about 700 microbial species and represents the most complex microbiota after gastrointestinal tract. In fact, oral microbiota directly influences health, metabolism and immune responses of the host. Metagenomic studies based on 16S rDNA profiling has reported the inhabitant bacteria mainly belonging to phyla , , , , and .

Taxonomically Characterized and Validated Bacterial Species Based on 16S rRNA Gene Sequences from India During the Last Decade.

Microbial taxonomy dealing with identification and characterization of prokaryotes like bacteria and archaea has always been a major area of research all over the world. Exploring diversity of microbes and description of novel species with different genes and secondary compounds is of utmost importance for better future and sustenance of life. India having an enormous range of ecosystems and diverse species inhabiting these niches is considered to be one of the richest biodiversity regions of the world.

Virgicin, a novel lanthipeptide from Virgibacillus sp. strain AK90 exhibits inhibitory activity against Gram-positive bacteria.

There is a significant increase in the discovery of new antimicrobial compounds in recent past to combat drug resistant pathogens. Members of the genus Bacillus and related genera have been screened extensively due to their ability to produce wide range of antimicrobial compounds. In this study, we have isolated and characterized a new antimicrobial peptide from a marine bacterium identified as Virgibacillus species.