Paenibacillus riograndensis SBR5(T), a nitrogen-fixing Gram-positive rhizobacterium isolated from a wheat field in the south of Brazil, has a great potential for agricultural applications due to its plant growth promotion effects. Here we present the draft genome sequence of P. riograndensis SBR5(T). Its 7.37-Mb genome encodes determinants of the diazotrophic lifestyle and plant growth promotio...

Mesenchymal stem cells (MSCs) can exhibit a marked tropism towards site of tumors. Many studies have reported that tumor progression and metastasis increase by MSCs. In contrast, other studies have shown that MSCs suppress growth of tumors. MSCs contribute to tumor growth promotion by several mechanisms: (1) transition to tumor-associated fibroblasts; (2) suppression of immune response; (3) pro...

Plants simultaneously interact with multiple organisms which can both positively and negatively affect their growth. Herbivores can reduce plant growth through loss of plant biomass and photosynthetic area, while plant mutualists, such as mycorrhizal fungi, can increase plant growth through uptake of essential nutrients. This is the first study examining whether species-specific associations wi...

Modulation of phytohormones homeostasis is one of the proposed mechanisms to explain plant growth promotion induced by beneficial rhizobacteria (PGPR). However, there is still limited knowledge about the molecular signals and pathways underlying these beneficial interactions. Even less is known concerning the interplay between phytohormones in plants inoculated with PGPR. Auxin and ethylene are...

Brazil is an important peanut producer, but despite its high production, there still needs to be inoculant for the crop. In addition, use of microorganisms that promote plant growth (PGPM) not common, and this crop highly dependent on chemical fertilizers. An excellent alternative reduce fertilizers inputs in crops while reducing production cost environmental impact PGPM. The objective study wa...

HISTORICAL DEVELOPMENT In the early 1930s, it was reported that injections of crude pituitary extracts increased growth rates in growing animals and milk production in lactating animals. Subsequent studies led to purification from pituitary extracts of two peptide hormones—prolactin and “growth hormone” or somatotropin—which are important to growth and lactation. Prolactin has many functions ra...

the effective factors on the economic growth of iran during the first 5-year development plan are studied. the main characteristics of this period are that the first development plan began after the end of war during which some of the unused capacities of the war period were utilized. while the budget deficit was continued in this period the government also pursued policies such as devaluation ...

Several chemical changes in soil are associated with plant growth-promoting rhizobacteria (PGPR). Some bacterial strains directly regulate plant physiology by mimicking synthesis of plant hormones, whereas others increase mineral and nitrogen availability in the soil as a way to augment growth. Identification of bacterial chemical messengers that trigger growth promotion has been limited in par...

Plant growth promotion by rhizobacteria is a known phenomenon but the underlying mechanisms are poorly understood. We searched for plant growth-promoting rhizobacteria that are naturally associated with Arabidopsis thaliana to investigate the molecular mechanisms that are involved in plant growth-promotion. We isolated a Pseudomonas bacterium (Pseudomonas sp. G62) from roots of field-grown Arab...