A study onf the nature of disease borne bacteria and the prevalent viruses

Root-knot nematode galls Nematodes are small, multicellular wormlike animals. Many live freely in the soil, but there are some species that parasitize plant roots. They are a problem in tropical and subtropical regions of the world, where they may infect crops.

A study onf the nature of disease borne bacteria and the prevalent viruses

All relevant data are within the paper and its Supporting Information files. Abstract Hard ticks are hematophagous arthropods that act as vectors of numerous pathogenic microorganisms of high relevance in human and veterinary medicine.

Ixodes ricinus is one of the most important tick species in Europe, due to its role of vector of pathogenic bacteria such as Borrelia burgdorferi and Anaplasma phagocytophilum, of viruses such as tick borne encephalitis virus and of protozoans as Babesia spp.

In addition to these pathogens, I. This is the dominant bacteria associated to I. To investigate, from a proteomic point of view, the tick I.

This work allowed to establish a method to characterize the proteome of I. Additionally, we were able to use an immunoproteomic approach to detect a protein from the symbiont. Finally, the method here developed will pave the way for future studies on the proteomics of I. Introduction Vector-borne diseases are among the leading causes of sanitary concern worldwide, being responsible for millions of deaths every year [ 1 ].

Although most vectors such as mosquitoes mainly exert their toll on developing countries, ticks are also widespread in the Northern hemisphere and are indeed considered the most important disease vectors in Europe and North America [ 2 ].

Many species of this order of obligate hematophagous parasites, the Ixodida, are capable of transmitting numerous viral, bacterial, and protozoan pathogens through the blood meal.

Hard ticks in particular are dangerous vectors and, among them, the sheep tick Ixodes ricinus is one of the most relevant species. The importance of I. Europe and Northern Africato its low host specificity and capacity to parasitize humans, and to its central role in the transmission of multiple infectious agents [ 3 ].

Borrelia spp, the causative agent of Lyme disease, is possibly the most important microorganism vectored by I. This bacterium is responsible for hundreds of thousands of novel infections each year and its role in multiple chronic pathologies is currently being investigated [ 4 ].

In addition to the aforementioned pathogens, I. Additionally, the bacterial load has been found to be important, with up to 15 million bacteria counted in one single tick, localized mainly in the ovaries or ovarian primordia [ 89 ].

As all member of the bacterial order Rickettsiales, M. However, investigations on its potential role as infectious agent have never provided adequate answers concerning the possible link to pathological effects.

A study onf the nature of disease borne bacteria and the prevalent viruses

As a consequence, new tools are required for answering this question. With the advent of proteomics, the screening of proteins as potential biomarkers has achieved important progresses. Recently, studies have been focused on the characterization of I.

Our plan was then to expand the knowledge of I. The first goal of this study is to give insight into the process of oogenesis, central to the tick life cycle. Additionally we planned to provide clues on the symbiotic relationship between I.

Moreover, to seek the best possible protocol for future studies on I.


Materials and Methods Ethics Statement I. The capture of roe deers was carried out only by competent persons using methods which do not cause the animals avoidable pain, suffering, distress or lasting harm.These arthropod-borne viruses can cause disease in different domestic and wild animals and in humans, posing a threat to public health because of their epidemic and zoonotic potential.

In recent decades, the geographical distribution of these diseases has expanded. Plant pathology (also phytopathology) is the scientific study of diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors).

Organisms that cause infectious disease include fungi, oomycetes, bacteria, viruses, viroids, virus-like organisms, phytoplasmas, protozoa, nematodes and parasitic plants.

Background: The human virome consists of animal-cell viruses causing transient infections, bacteriophage (phage) predators of bacteria and archaea, endogenous retroviruses, and viruses . Disease-causing bacteria or viruses that are carried trough the body in the blood or body fluids, such as hepatitis, and HIV How pathogens enter the body: Break in the skin, such as a cut, pimple, or scratch.

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PATHOLOGIE ET MORGUE – Coin de la documentaliste : la veille informationnelle de l'ASSTSAS

18 Microbiology (Dental Science) STUDY. PLAY. It is important for the dental assistant to have a foundation in microbiology in order to. Understand the nature of pathogens & know how to prevent disease transmission in the dental office.

___ is the study of viruses & their effects. Virulence.

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