BACKGROUND Differential selection between clones of apomictic species may result in ecological differentiation without mutation and recombination, thus offering a simple system to study adaptation and life-history evolution in plants. METHODOLOGY/PRINCIPAL FINDINGS We caused density-independent mortality by weeding to colonizer populations of the largely apomictic Taraxacum officinale (Astera...

Salinity is a major detrimental factor for plant growth and crop productivity that could be alleviated by the use of promoting bacteria (PGPB) with protective role in such stressful conditions. In this study, four native strains genus Pseudomonas were isolated from both strongly saline soil rhizosphere soybean plants grown slightly soil. These isolates able to tolerate high NaCl concentration, ...

We developed a novel procedure for the selection of a microbe-plant pair for the stable and efficient degradation of naphthalene. Based on the rationale that root exudate is the best nutrient source available in soil, the grass (Lolium multiflorum) cultivar Barmultra was selected because of its abilities to produce a highly branched root system, root deeply, and carry a high population of Pseud...

Certain anaerobic bacterial species tend to predominate the vaginal flora during bacterial vaginosis (BV), with Gardnerella vaginalis being the most common. However, the exact role of G. vaginalis in BV has not yet been determined. The main goal of this study was to test the hypothesis that G. vaginalis is an early colonizer, paving the way for intermediate (e.g., Fusobacterium nucleatum) and l...

In a prospective study to evaluate the influence of secondary bacterial infection on the evaluation of cutaneous leishmaniasis, in Corte de Pedra (Bahia), we isolated Corynebacterium diphtheriae in 7 (8.3%) out of 84 patients with ulcers studied. Due to the small number of patients with the presence of the bacteria in the ulcer, we could not conclude whether Corynebacterium diphtheriae behaves ...

Although pathogenic bacteria are suspected contributors to colorectal cancer progression, cancer-promoting bacteria and their mode of action remain largely unknown. Here we report that sustained infection with the human intestinal colonizer Pseudomonas aeruginosa synergizes with the Ras1V12 oncogene to induce basal invasion and dissemination of hindgut cells to distant sites. Cross-talk between...

Endophytic microbiomes of healthy seed form a symbiotic relationship with their host. Seed and environment are sources microbes that colonize the developing plant; however, influence each remains unclear. Here, using irradiation combined surface sterilization to generate near-axenic disrupted reduced microbiomes, we contrasted colonization potential soil microbiomes. We hypothesized microbiome ...

biological control of soil borne plant pathogens with antagonistic microorganism has been more attracting interest. especially, burkholderia strains have been intensively investigated as biological agents. the objective of this study was finding an effective biologica control agent against the canola damping off caused by rhizoctonia solani. rhizoctonia damping-off is one of the most important ...