There is a world wide interest in searching for the safe and effective novel antibacterial compounds of plant origin for the control of plant pathogenic bacteria which is responsible for the great impact on the growth and productivity of agriculture crops. In this study an attempt was made to determine the in vitro antibacterial activity of sequentially extracted different solvent (dichlorometh...

Type IV secretion systems (T4SS) are used by Gram-negative bacteria to translocate protein and DNA substrates across the cell envelope and into target cells. Translocation across the outer membrane is achieved via a ringed tetradecameric outer membrane complex made up of a small VirB7 lipoprotein (normally 30 to 45 residues in the mature form) and the C-terminal domains of the VirB9 and VirB10 ...

Citrus bacterial canker caused by Xanthomonas axonopodis pv. citri is a serious disease that impacts citrus production worldwide, and X. axonopodis pv. citri is listed as a quarantine pest in certain countries. Biofilm formation is important for the successful development of a pathogenic relationship between various bacteria and their host(s). To understand the mechanisms of biofilm formation b...

samples of leaf, twig and fruit from ‘mexican’ lime (citrus aurantifolia) and grapefruit (citrus paradisi) with symptoms of bacterial canker were collected from different provinces throughout iran during spring and summers of 2010 and 2011. yellow, gram-negative colonies were isolated from infected tissue samples. results of pathogenicity assays indicated that some isolates incited tissue hyper...