Black rot disease is a serious bacterial that harms vegetable crops of the Brassica genus (especially cabbage plants) worldwide. The causal agent, Xanthomonas campestris pv. (Xcc), seed-borne pathogen primarily infects seedlings. Previous studies suggest strain, Bacillus amyloliquefaciens PMB05, can intensify plant immune responses against black and reduce occurrence. In immunity, several react...

Abilities of bacterial pathogens to adapt to the iron limitation present in hosts is critical to their virulence. Bacterial pathogens have evolved diverse strategies to coordinately regulate iron metabolism and virulence associated functions to maintain iron homeostasis in response to changing iron availability in the environment. In many bacteria the ferric uptake regulator (Fur) functions as ...

The genome of the Xanthomonas campestris pathovar campestris (Xcc) strain 8004 encodes three uncharacterized proteins, XC1166, XC1223 and XC1976, annotated as glucose kinase (Glk) by bioinformatic studies. Here we have investigated the biochemical characteristics and physiological roles of these proteins with particular reference to the synthesis of extracellular polysaccharide (EPS). XC1166, X...

In prokaryotes simple sequence repeats (SSRs) with unit sizes of 1-5 nucleotides (nt) are causative for phase and antigenic variation. Although an increased abundance of heptameric repeats was noticed in bacteria, reports about SSRs of 6-9 nt are rare. In particular G-rich repeat sequences with the propensity to fold into G-quadruplex (G4) structures have received little attention. In silico an...

The aim of this paper is to study a certain type of chamber system. For notation and definitions concerning chamber systems see [22]. For the convenience of the reader, we recall two definitions which are of importance in this paper. Let % = (% ($,•),-€/) be a chamber system over / and c € %. By Ay(c) with / c /, we denote the element in £%y containing c (Ay(c) is a chamber system over / ) . Le...