sp. nov., isolated from the tick .

Recently, we obtained a rickettsial isolate ( sp. UFMG-EV) from the haemolymph of engorged tick females. On the basis of maximum-likelihood phylogenetic analysis using 16S rRNA gene, , , and sequences we showed that sp.

Molecular and immunological characterization of three strains of Anaplasma marginale grown in cultured tick cells.

Anaplasma marginale is an economically important tick-borne pathogen of cattle that causes bovine anaplasmosis. A wide range of geographic strains of A. marginale have been isolated from cattle, several of which have been characterized using genomics and proteomics.

Characterization of the Aspergillus fumigatus chitosanase CsnB and evaluation of its potential use in serological diagnostics.

Aspergillus fumigatus is currently the major air-borne fungal pathogen as its asexual spores are distributed through the air. In severely immunocompromised patients, inhalation of these conidia can result in life-threatening infections. Invasive Aspergillosis, a major Aspergillus-associated disease, is associated with a high mortality reflecting short-comings in diagnostics and therapy.

In vitro culture and structural differences in the major immunoreactive protein gp36 of geographically distant Ehrlichia canis isolates.

Ehrlichia canis, the etiologic agent of canine ehrlichiosis, is an obligate intracytoplasmic Gram-negative tick-borne bacterium belonging to the Anaplasmataceae family. E. canis is distributed worldwide and can cause serious and fatal infections in dogs.

The two-component sensor kinase TcsC and its role in stress resistance of the human-pathogenic mold Aspergillus fumigatus.

Two-component signaling systems are widespread in bacteria, but also found in fungi. In this study, we have characterized TcsC, the only Group III two-component sensor kinase of Aspergillus fumigatus. TcsC is required for growth under hyperosmotic stress, but dispensable for normal growth, sporulation and conidial viability.

Studies on galactofuranose-containing glycostructures of the pathogenic mold Aspergillus fumigatus.

Galactofuranose is a hexose that is exclusively found in microbes and in particular in certain pathogenic species. In the mold Aspergillus fumigatus, it is the characteristic constituent of the cell wall component galactomannan. Detection of this carbohydrate is currently a widespread method used for diagnosis of systemic A.

Characterisation of the CipC-like protein AFUA_5G09330 of the opportunistic human pathogenic mould Aspergillus fumigatus.

Aspergillus fumigatus is currently the major airborne fungal pathogen that menaces immunocompromised individuals. Germination of inhaled conidia is a hallmark of the early infection process, but little is known about the underlying mechanisms. The intention of our ongoing studies is the identification of A.