An antibiotic-resistant strain of Pseudomonas fluorescens, that suppresses take-all of wheat, was used to study the distribution of the bacteria on seminal roots of wheat after being introduced onto seeds. Cells of P. fluorescens were isolated from the entire length of the root, and density of the introduced bacteria declined with the distance from the base of the root. Maximum populations of 1...

Aquitalea magnusonii strain H3 is a promising plant growth-promoting bacterium for duckweed. Here, we report the draft genome sequence of strain H3 comprising 4,750,601 bp in 73 contigs. Several genes associated with plant root colonization were identified.

Endophytes have a symbiotic relationship with the different parts of plants and could play a very important role in supporting the plant growth. In present study, 11 most efficient isolates were selected out of more than 200 endophytic bacteria isolated previously from roots of chickpea (Cicer arietinum), field pea (Pisum sativum), Lucerne (Medicago sativa), wheat (Triticum aestivum) and oat (A...

We used denaturing gradient gel electrophoresis (DGGE) to compare bacterial profiles in periodontium and root canals of teeth with combined periodontal-endodontic lesions. Samples of dental plaque and necrotic pulp were collected from thirteen extracted teeth with advanced periodontitis. Genomic DNA was extracted for polymerase chain reaction (PCR) analysis using universal bacterial primers. Th...

The present study was aimed to evaluate the antibacterial activity of Amorphophallus campanulatus (family: Araceae) commonly known as jangli suran. The root, stem and leaf of A. campanulatus, extracted successively with polar (aqueous, methanol), dipolar (acetone) and non polar (chloroform) solvents, yielded more phyto compounds in case of root followed by stem and leaf. The extracts were asses...

Objective. Periapical periodontitis is an infectious and inflammatory disease of the periapical tissues caused by oral bacteria invading the root canal. In the present study, profiling of the microbiota in infected root canals was performed using anaerobic culture and molecular biological techniques for bacterial identification. Methods. Informed consent was obtained from all subjects (age rang...

OBJECTIVE The study was designed to test application of ultraviolet light to root canal walls, as a mean of complementary immediate disinfection after the use of sodium hypochlorite. STUDY DESIGN Root canals were infected ex vivo with Enterococcus faecalis for 48 hours. Non-attached bacteria were washed away, and the remaining attached bacteria were subjected to disinfection, with 5% sodium h...

Inoculum droplets of approximately 10 nanoliter volume and containing about 10 Rhizobium meliloti cells were placed onto the root surface of alfalfa seedlings in plastic growth pouches at either the root tip, the position of the smallest emergent root hairs, or at a site midway between these points. The droplets were initially confined to an area of about 0.2 square millimeter at the point of a...

Maize produces a suite of allelopathic secondary metabolites, the benzoxazinoids. 2,4-Dihydroxy-7-methoxy-2H-1,4-benzoxazin-3-one and 2,4-dihydroxy-2H-1,4-benzoxazin-3-one reside as glucosides in plant tissue and spontaneously degrade to 6-methoxy-2-benzoxazolinone (MBOA) and 2-benzoxazolinone (BOA) upon plant cell disruption. Several maize-associated fungi in the genus Fusarium can metabolize ...