Response to low osmotic stress in a fish pathogen, Vibrio anguillarum
نویسندگان
چکیده
منابع مشابه
Iron(III) complexation by Vanchrobactin, a siderophore of the bacterial fish pathogen Vibrio anguillarum.
The bacterial fish pathogen Vibrio anguillarum serotype O2 strain RV22 produces the mono catecholate siderophore Vanchrobactin (Vb) under conditions of iron deficiency. Vb contains two potential bidentate coordination sites: catecholate and salicylate groups. The iron(III) coordination properties of Vb is investigated in aqueous solutions using spectrophotometric and potentiometric methods. The...
متن کاملIdentification and characterization of a zinc metalloprotease associated with invasion by the fish pathogen Vibrio anguillarum.
An invasiveness-defective mutant of the fish-pathogenic bacterium Vibrio anguillarum was isolated. Compared with the wild type, this mutant had a 1,000-fold higher 50% lethal dose after immersion infection of rainbow trout, Oncorhynchus mykiss, while after intraperitoneal infection, the mutant had only a 10-fold higher 50% lethal dose. In addition, the mutant showed a lower level of protease ac...
متن کاملMonitoring Response of a Few bZip Transcription Factors in Response to Osmotic Stress in Sunflower
Background: Sunflower (Helianthus annuus L.) is one of the important vegetable oil supplies in the world and in Iran, as well. It is classified as a drought semi-tolerant crop; however, its yield is adversely affected by drought stress. Understanding the initial events in sensing stress and the related physiologic and biochemical events thereafter, is crucial in designing droug...
متن کاملComplete sequence of virulence plasmid pJM1 from the marine fish pathogen Vibrio anguillarum strain 775.
The virulence plasmid pJM1 enables the fish pathogen Vibrio anguillarum, a gram-negative polarly flagellated comma-shaped rod bacterium, to cause a highly fatal hemorrhagic septicemic disease in salmonids and other fishes, leading to epizootics throughout the world. The pJM1 plasmid 65,009-nucleotide sequence, with an overall G+C content of 42.6%, revealed genes and open reading frames (ORFs) e...
متن کاملMolecular characterization of the TonB2 protein from the fish pathogen Vibrio anguillarum.
In the fish pathogen Vibrio anguillarum the TonB2 protein is essential for the uptake of the indigenous siderophore anguibactin. Here we describe deletion mutants and alanine replacements affecting the final six amino acids of TonB2. Deletions of more than two amino acids of the TonB2 C-terminus abolished ferric-anguibactin transport, whereas replacement of the last three residues resulted in a...
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ژورنال
عنوان ژورنال: FEMS Microbiology Ecology
سال: 1997
ISSN: 0168-6496
DOI: 10.1016/s0168-6496(96)00093-1