The present study was conducted to estimate in-vitro antimicrobial activity of six herbal plant extracts (Black pepper, Fennel, Turmeric, Black cumin, Ginger, Bay leaf) by using well diffusion method. It determined that both methanolic and ethyl acetate these additives possessed considerable antibacterial against Staphylococcus aureus, Pseudomonas aeruginosa, Proteus vulgaris, Salmonella typhi ...

Virulence genes of Agrobacterium tumefaciens are under the control of positive and negative transcriptional regulators. We found that the transcriptional regulator Ros controls expression of the plant oncogene ipt, which encodes isopentenyl transferase, in A. tumefaciens. This enzyme is involved in biosynthesis of the plant growth hormone cytokinin in the host plant. An ipt promoter::cat report...

expansins are cell wall proteins that due to changes in ph, causing the expansion of the cell wall .these proteins are causing deformation of walls through loosening hydrogen bonds between the cellulose and polymer matrix microfibrils .in this study, a root specific gene called atexpa18 -that directly affect the formation of root hairs and also its role  have been proved in other parts of the p...

When disrupted by stimuli such as herbivory, pathogenic infection, or mechanical wounding, plants secrete signals such as root exudates and volatile organic compounds (VOCs). The emission of VOCs induces a response in the neighboring plant communities and can improve plant fitness by alerting nearby plants of an impending threat and prompting them to alter their physiology for defensive purpose...

This study aims at evaluating the agronomic efficiency of Bacillus subtilis UFMT-Pant001 strain as a plant growth promoter in soybean three greenhouses from distinct Brazilian regions. The treatments were formulated based on this concentration 1x109 UFC.mL-1 volumes 100, 150, 200, 250, 300, 350 or 400 mL for each 50 kg seeds. Bradyrhizobium japonicum was added all experiments, and absolute cont...

The activity of the nopaline synthase (nos) promoter is differentially regulated in several plant organs. In this article we demonstrate that the nos promoter is wound inducible in both vegetative and reproductive organs. The induction of the nos promoter was observed in leaves, stems, cotyledons, and various reproductive organs, suggesting that the response is not organ specific. The wound res...

in this research, the effect of using vermicompost on growth rate, fertility and characteristics oftomatoes has been studied. four vermicompost: soil mixture were supplied with ratios of 1:1, 1:2, 1:3, and 1:4 and also four different beds were provided. total of 24 small globe tomato plants were tested and in each bed combination, six tomato plants were embedded. rate of growth and yielding of ...