Describe the
characteristics of the selected bacteria, including its growth conditions, cell
wall characteristics, and route of infection.
The
foodborne pathogen that is most frequently and isolated is the Salmonella. Salmonella
is the important worldwide public concern of health approximately 93.8 billion
for the illness of the foodborne along with the 155,000 death per years. In the
different species of the bacteria like 2,300 is involved in the Salmonella. The
important types of the Salmonella are the Salmonella typhimurium, and the
pathogenesis mechanisms that account the all-human infections. There are the
following characteristic of the Salmonella that include the characteristics of
the Cell wall, with the route infection of their conditions of growth.
· Gram Test
· Oxygen Needs
· Shape
· Augur appearance
· Diseases
The
characteristic of the Salmonella is the Gram test that calculates the bacterium
cell wall compositions. The Salmonella signifies the high amounts of the peptidoglycan
and provide the structures of mesh along with strength because the Salmonella
is the gram negative .The facultative bacteria is Salmonella which means that ,
it survive without or with oxygen , like the Obligate bacteria where on the
other side it can survive in the specific conditions of growth. The shape of
the Salmonella bacteria is bacillus, rod. In the
different strains of the bacilli the spores does not produced by Salmonella. The
colonies appear colorless for the Salmonella by have the dark centers. The
group of colony has the Salmonella bacteria that are growing together. The last
characteristic of the Salmonella bacteria causes two diseases in human. First
the Enteric fever, that also called the typhoid as well as the gastroenteritis,
where the doctor refers to both of the diseases as Salmonellosis. (Michaels) The invasive serotypes
are including the Salmonella infections for the life threatening, in the
necessitating of the appropriate effective antibiotics therapy. The rate of the
Salmonella infections increase the mortality, which leads the MDR, strains to
increases the prevalence of the antibiotic treatments. Eliminate the spread of
the Salmonella infections proposed the preventive measures. The Salmonella
infections discussed the mechanism of the pathogenesis, for the clinical manifestations,
in the Salmonella antibiotics resistance. (Eng and et.al)
Describe the molecular
mechanisms of pathogenesis of this bacteria and how specifically it
affects host cells. Describe the secreted toxins, type of affected cells in
host, and the changes at cellular and molecular levels. (~800-1000 words)
There are the wide varieties for the Salmonella bacteria that have the
molecular mechanisms of pathogenesis to obtain the entry in to the host cells. Most
of the bacterial manipulations are against the host of the actin cytoskeleton.
The identification as well as analysis of effector proteins for the cellular targets
is provided the insights in the molecular mechanism of the of the Salmonella
bacteria into the host cell. This bacterium is subverted for the host signaling
as well as cytoskeleton machinery for their own purposes. Salmonella bacteria are enter into the host
cells by the focused on the effectors modulate of the actin cytoskeleton. The attachment
of the Salmonella bacteria along with the, mechanism that promote the bacterial
enter (Ly).
By
the molecular mechanisms that is responsible for the colonization resistance
that still der the debate which is believed in the antibiotics of the resident
gut .Though, a molecular mechanisms though
which the intercellular Salmonella interface by the DC function to be
elucidated (Valdez and et.al). By using the culture model of tissues as
well as neonatal calf model, the molecular mechanism of the pathogenesis
Salmonella is enter into the host cell .In the complex series of the host
pathogen for the interaction of the Salmonella bacteria leading the diarrhea. In
the Salmonella server the fluid loss is observed the Typhimiurium induced
enterocolities. The serotypes of the Salmonella bacteria are connected by the
three distinct human diseases for the syndromes of the bacterium,
enterocolities as well as the typhoid fever (Zhang and et.al).
The
molecular mechanism through which the microbial, cells into the host for the
secreted toxin exert their actions that is most important element for the risk
of the human health. The cellular as well as molecular mechanism of the
pathogenesis Salmonella bacteria provide the wealth information into the host
cell for the secreted toxins. The diverse toxin explained the integrated
framework of the selectivity of the toxicity of the still lacking. The different
toxin emphasized the fundamental mechanism of the toxicity of the biochemical cellular
levels for the nervous systems. Secreted toxin is assigned to every target
category for the denominated as the portal plus the modulation of the various
portals that is signed for the features. With the initial portal, while an
interaction is determined through the chemical secreted toxin inside the cell,
for the ubiquitous messengers. The most promising a natural molecule is
represented the secreted toxin that enters into the cellular host, of the molecular
levels. The number of the secreted toxin is identified as well as isolated to increase
the better insights for the structure of the molecular mechanism where the
action is achieved.
The
molecular mechanisms of pathogenesis Salmonella is underlying the secreted
toxin interference by the signaling cascade of the directed target on the
molecular levels, where the regular level for the second messengers. The
interaction of the secreted toxin is subsequent for the biochemical chain of events
that are perturbed as well as in most cases the pathological response is the
best evident. The major mechanism of the pathogenesis Salmonella bacteria
is changes the target protein of the receptor for the plasma membrane in the
various levels of the distinguishable. This type of mechanism is consisting of
the confirmations changes for the binding of the acetylcholine molecules in the
alpha subunit. The secret toxin for the hos as well as cellular cells, at the molecular
levels of the pathogenesis Salmonella bacteria is act as the pores to collapse
as well as interface the intracellular into the ionic equilibrium (Lahiani and et.al).
References
of Characteristics of Salmonella and Its Pathogenesis Mechanisms, Including the
Secreted Toxins
Eng, Shu -Kee and et.al. "Salmonella: A review
on pathogenesis, epidemiology and antibiotic resistance." Frontiers in
Life Science, 8.3 (2015): 284–293.
Lahiani, Adi and
et.al. "et al. “The Molecular Basis of Toxins' Interactions with
Intracellular Signaling via Discrete Portals” Toxins." Toxins 9.3
(2017): 107.
Ly, Kim Thien .
"Mechanisms of Salmonella entry into host cells." Cellular
Microbiology 9.9 (2007): 2103–2111.
Michaels, Joel . Characteristics
of Salmonella Bacteria. 24 April 2017. <https://sciencing.com/characteristics-salmonella-bacteria-5527822.html>.
Valdez, Yanet and
et.al. "Molecular Mechanisms of Salmonella Virulence and Host Resistance.
Molecular Mechanisms of Bacterial Infection via the Gut, . doi:." Microbiology
and Immunology 337 (2009): 93–127.
Zhang, Shuping and
et.al. "Molecular Pathogenesis of Salmonella enterica Serotype
Typhimurium-Induced Diarrhea." Infection and Immunity 71.1 (2003):
1-12.