Soil pathogens are believed to be major contributors to negative plant-soil feedbacks that regulate plant community dynamics and plant invasions. While the theoretical basis for pathogen regulation of plant communities is well established within the plant-soil feedback framework, direct experimental evidence for pathogen community responses to plants has been limited, often relying largely on i...

Yokenella regensburgei is a member of the family Enterobacteriaceae that has rarely been implicated in clinical disease. We report here a case of septicemia with a skin and soft tissue source caused by Y. regensburgei in an immunocompromised host.

Crosstalk between salicylic acid (SA) and jasmonic acid (JA) signaling is well-studied but not during leaf senescence. We found that the senescence-specific WRKY53 transcription factor interacts with the JA-inducible protein EPITHIOSPECIFYING SENESCENCE REGULATOR (ESR/ESP). The expression of these genes is antagonistically regulated in response to JA and SA, respectively, and each negatively in...

Effective mastitis control requires knowledge of the predominant pathogen challenges on the farm. In order to quantify this challenge, the aetiological agents associated with clinical mastitis in 30 milk-recording dairy herds in Ireland over a complete lactation were investigated. Standard bacteriology was performed on 630 pretreatment quarter milk samples, of which 56 per cent were culture-pos...

A full-length heme oxygenase gene from the gram-negative pathogen Neisseria meningitidis was cloned and expressed in Escherichia coli. Expression of the enzyme yielded soluble catalytically active protein and caused accumulation of biliverdin within the E. coli cells. The purified HemO forms a 1:1 complex with heme and has a heme protein spectrum similar to that previously reported for the puri...

OBJECTIVES Early microbiological diagnosis of deep sternal wound infections (DSWI) could improve outcomes by allowing targeted antibiotic treatment. This study aims to analyse the utility of superficial sternal wound swabs and blood cultures. METHODS From January 2005 to June 2011, 70 patients were prospectively identified with DSWI. Microbiological data were obtained retrospectively to study...

The objective of this study was to develop a decision tree to evaluate the economic impact of different durations of intramammary treatment for the first case of mild or moderate clinical mastitis (CM) occurring in early lactation with various scenarios of pathogen distributions and use of on-farm culture. The tree included 2 decision and 3 probability events. The first decision evaluated use o...

INTRODUCTION The incidence of multidrug resistant microorganisms worldwide is increasing. The aim of the study was to present institutional experience with the multidrug resistant microorganism colonization patterns observed in children with congenital heart diseases hospitalized in a hybrid pediatric cardiac surgery center. MATERIAL AND METHODS Microbiological samples were routinely collecte...