Plant and human pathogens have evolved disease factors to successfully exploit their respective hosts. Phytopathogens utilize specific determinants that help to breach reinforced cell walls and manipulate plant physiology to facilitate the disease process, while human pathogens use determinants for exploiting mammalian physiology and overcoming highly developed adaptive immune responses. Emergi...

The distribution of pathogenic anaerobes in the environment and the relationship with diseases in animals are discussed. A distinction between the spore-bearing anaerobes (clostridia) and the Gram-negative non-spore-forming anaerobes is necessary. The main habitat of clostridia is the soil but they are also found in dust, sewage, rivers, lakes, sea water, milk, vegetables, fresh meat, fish, ins...

In  this  reaserch,  photocatalyst  titanium  dioxide  was  doped  with silver  and modified  by  polyethylene  glycol  by  sol  gel method  and the  samples  were  characterized  by  X-ray  diffraction  (XRD)  and scanning  electron  microscopy  (SEM).  The  purpose  of  the  present study  was  to  evaluate  the  photocatalytic  bactericidal  effects  of prepared nanocomposite on human p...

Methods to ensure the health of crops owe their efficacy to the extent to which we understand the ecology and biology of environmental microorganisms and the conditions under which their interactions with plants lead to losses in crop quality or yield. However, in the pursuit of this knowledge, notions of the ecology of plant-pathogenic microorganisms have been reduced to a plant-centric and ag...

Introduction. The role of healthcare workers’ hands in the transmission of infectious diseases to patients is acknowledged. Indeed, they can pick potentially pathogenic bacteria and fungi from hand-touch surfaces before wearing gloves; these microorganisms multiply rapidly in the moist environment underneath gloves and multiplication rate increases along with the duration of glove use. This rou...

The increasing resistance of microorganisms to conventional chemicals and drugs is a serious and evident worldwide problem that has prompted research into the identification of new biocides with broad activity. Plants and their derivatives, such as essential oils, are often used in folk medicine. In nature, essential oils play an important role in the protection of plants. Essential oils contai...

Quorum sensing (QS) allows bacteria to assess their local population density and/or physical confinement via the secretion and detection of small, diffusible signal molecules. This review describes how phytopathogenic bacteria have incorporated QS mechanisms into complex regulatory cascades that control genes for pathogenicity and colonization of host surfaces. Traits regulated by QS include th...