Diseases of the commercially cultivated brown seaweed Saccharina japonica have been noticed since 1960s in China. However, usually opportunistic nature pathogenic bacteria seaweeds is still a main obstacle for isolating and identifying responsible causing diseases S. japonica. In this study, Gram-positive bacterium XP-2 was isolated from abnormal diseased mature sporophytes Pathogenicity test i...

Groundnut root rot is a complex disease affecting the crop production worldwide. The objectives of this study were to: (1) Assess occurrence and distribution groundnut in four main groundnut-growing areas eastern Ethiopia; (2) Identify major pathogens associated with complex; (3) Determine role singly combination on severity under greenhouse conditions. A total 240 fields surveyed over two seas...

MPG1, a pathogenicity gene of the rice blast fungus Magnaporthe grisea, is expressed during pathogenesis and in axenic culture during nitrogen or glucose limitation. We initiated a search for regulatory mutations that would impair nitrogen metabolism, MPG1 gene expression, and pathogenicity. First, we developed a pair of laboratory strains that were highly fertile and pathogenic toward barley. ...

the bacterium oceanimonas sp. (o. sp.) gk1 is a member of the aeromonadaceae family and its genome represents several virulence genes involved in fish and human pathogenicity. in this original research study we aimed to identify and characterize the putative virulence factors and pathogenicity of this halotolerant marine bacterium using genome wide analysis. materials and methods: the genome da...

background: coccidiosis of domestic fowl, caused by species of the genus eimeria , is responsi­ble for important economic losses in poultry production. because different species and/or strains can vary in pathogenicity and other biological parameters, their precise characteriza­tion is important for epizootiological studies. methods: fifty samples from litter, whole intestinal tract and feces w...

Euonymus spp. (L.) are some of the most important ornamental plants. Fungal plant pathogens of ornamental plants are the most important factors causing damage. In this research two pathogenic fungal species were isolated from naturally infected Euonymus species and identified. In order to isolation of fungi from disease tissues, the obtained samples were cultured on potato dextrose agar medium....

The main objective of this study was to evaluate the pathogenicity of isolated   Yersinia ruckeri  from Caspian trout. Y. ruckeri specimens were isolated from infected rainbow trout farms located in north of Iran. The identification was confirmed by biochemical tests and 16s rRNA gene sequencing. The pathogenicity test was carried out to determine the virulence of the Y. ruckeri by IP injection...