Lactobacillus salivarius: Difference between revisions
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=2. Description and significance= | =2. Description and significance= | ||
''Lactobacillus salivarius'' is a well characterized, rod-shaped, Gram-positive species of probiotic bacteria (Chapot-Chartier et al. 2014). It is commonly isolated from human, porcine, and avian gastrointestinal tracts. ''L. salivarius'' is a lactic acid bacterium that has antimicrobial activity due to the production of bacteriocins, which directly inhibit pathogens (Messaoudi et al. 2013). Modern discoveries have demonstrated the effectiveness of the bacteriocins of ''L. salivarius'' against specific pathogens such as those that are responsible for foodborne illness, acne and other skin conditions, and irritable bowel syndrome in humans (Messaoudi et al. 2013, Corr et al. 2007, Deidda et al. 2018, Peran et al. 2005). ''L. salivarius'' has also been proven to fight the pathogen ''Staphylococcus aureus''; ''L. salivarius'' can target both planktonic cells as well as biofilms of S. aureus through the secretion of anti-Staphylococcus proteins. (Kang et al. 2017) The bacteriocin properties of ''L. salivarius'' also are effective in food preservation (Messaoudi et al. 2013). New knowledge regarding the beneficial antibacterial properties of ''L. salivarius'' have led to an increase in the use of the strain as a replacement to previous topical and oral antibiotics (Corr et al. 2007). Further exploration of the mechanisms of ''L. salivarius''’ probiotic and antimicrobial properties has the potential to yield new discoveries beneficial to human health. | |||
=3. Genome structure= | =3. Genome structure= | ||
Describe the size and content of the genome. How many chromosomes? Circular or linear? Other interesting features? What is known about its sequence? | Describe the size and content of the genome. How many chromosomes? Circular or linear? Other interesting features? What is known about its sequence? | ||
Revision as of 14:34, 10 December 2018
1. Classification
a. Higher order taxa
Lactobacillus salivarius belongs to the terrabacteria group in the class Firmicutes. It is in the class Bacilli, of the order Lactobacillales, and belongs to the family Lactobacillus (“European Bioinformatics” 2018).
2. Description and significance
Lactobacillus salivarius is a well characterized, rod-shaped, Gram-positive species of probiotic bacteria (Chapot-Chartier et al. 2014). It is commonly isolated from human, porcine, and avian gastrointestinal tracts. L. salivarius is a lactic acid bacterium that has antimicrobial activity due to the production of bacteriocins, which directly inhibit pathogens (Messaoudi et al. 2013). Modern discoveries have demonstrated the effectiveness of the bacteriocins of L. salivarius against specific pathogens such as those that are responsible for foodborne illness, acne and other skin conditions, and irritable bowel syndrome in humans (Messaoudi et al. 2013, Corr et al. 2007, Deidda et al. 2018, Peran et al. 2005). L. salivarius has also been proven to fight the pathogen Staphylococcus aureus; L. salivarius can target both planktonic cells as well as biofilms of S. aureus through the secretion of anti-Staphylococcus proteins. (Kang et al. 2017) The bacteriocin properties of L. salivarius also are effective in food preservation (Messaoudi et al. 2013). New knowledge regarding the beneficial antibacterial properties of L. salivarius have led to an increase in the use of the strain as a replacement to previous topical and oral antibiotics (Corr et al. 2007). Further exploration of the mechanisms of L. salivarius’ probiotic and antimicrobial properties has the potential to yield new discoveries beneficial to human health.
3. Genome structure
Describe the size and content of the genome. How many chromosomes? Circular or linear? Other interesting features? What is known about its sequence?
4. Cell structure
Interesting features of cell structure. Can be combined with “metabolic processes”
5. Metabolic processes
Describe important sources of energy, electrons, and carbon (i.e. trophy) for the organism/organisms you are focusing on, as well as important molecules it/they synthesize(s).
6. Ecology
Habitat; symbiosis; contributions to the environment.
7. Pathology
How does this organism cause disease? Human, animal, plant hosts? Virulence factors, as well as patient symptoms.
8. Current Research
Include information about how this microbe (or related microbes) are currently being studied and for what purpose
9. References
It is required that you add at least five primary research articles (in same format as the sample reference below) that corresponds to the info that you added to this page. [Sample reference] Faller, A., and Schleifer, K. "Modified Oxidase and Benzidine Tests for Separation of Staphylococci from Micrococci". Journal of Clinical Microbiology. 1981. Volume 13. p. 1031-1035.
