Phytophthora pathogens secrete an array of specific effector proteins to manipulate host innate immunity to promote pathogen colonization. However, little is known about the host targets of effectors and the specific mechanisms by which effectors increase susceptibility. Here we report that the soybean pathogen Phytophthora sojae uses an essential effector PsAvh262 to stabilize endoplasmic reti...

Burkholderia mallei is a highly infectious gram-negative pathogen and is the causative agent of human and animal glanders. By generating polar mutations (disruption of bsaQ and bsaZ) in the B. mallei ATCC 23344 animal pathogen-like type III secretion system (TTS), we demonstrate that this bacterial protein delivery system is required for intracellular growth of B. mallei in J774.2 cells, format...

One of the current problems in the field of coral disease research is that of tracking coral pathogens in the natural environment. A promising method to do this is by use of pathogen-specific molecular probes. However, this approach has been little used to date. We constructed, and validated in the laboratory, a fluorochrome-labeled molecular probe specific to Aurantimonas coralicida, the bacte...

The Gram-negative gammaproteobacterium Pseudomonas syringae is one of the most wide-spread plant pathogens and has been repeatedly reported to cause significant damage to crop plantations. Research on this pathogen is very intensive, but most of it is done on isolates that are pathogenic to Arabidopsis, tomato, and bean. Here, we announce a high-quality draft genome sequence of Pseudomonas syri...

PCR coupled with electrospray ionization mass spectrometry (PCR/ESI-MS) was compared with culture for pathogen detection in peritoneal dialysis (PD)-related peritonitis. Of 21 samples of PD effluent, PCR/ESI-MS identified microorganisms in 18 (86%) samples, including Mycobacterium tuberculosis in 1 culture-negative sample. Of 15 double-positive samples, PCR/ESI-MS and culture reached levels of ...

Coxiella burnetii is an obligate Gram-negative intracellular pathogen and the etiological agent of Q fever. Successful infection requires a functional Type IV secretion system, which translocates more than 100 effector proteins into the host cytosol to establish the infection, restructure the intracellular host environment, and create a parasitophorous vacuole where the replicating bacteria res...

Plant diseases caused by pathogenic bacteria or fungi cause major economic damage every year and destroy crop yields that could feed millions of people. Only by a thorough understanding of the interaction between plants and phytopathogens can we hope to develop strategies to avoid or treat the outbreak of large-scale crop pests. Here, we studied the interaction of plant-pathogen pairs at the me...

........................................................................................................................ 6 SAMMENDRAG .................................................................................................................. 7 LIST OF ABBREVIATIONS ................................................................................................ 8 PLANT INNATE IMMUNITY ......

background: members of this genus aureobasidium are ubiquitous microorganisms which can be isolated from wide ranges of substrates such as plant materials (phyllosphere, plant debris, bark, roots, fruits and wood), soil, dead wood, air, and as rare etiologic agent of pheohyphomycosis, keratomycosis, septicemia, peritoneal sepsis, and dermatological infections in human. very little is known on t...

in this paper the taxonomy of some previously reported taxa as cercospora apii s.lat. in iran, is discussed and some new records are listed. cercospora species on abelia grandiflora (c. deutziae), erythrina crista-galli (c. erythrinicola), euphorbia heterophylla (c. pulcherrimae) and zanthedeschia aethiopica (c. richardiicola) are new for mycobiota of iran. cercospora iridis which was previousl...