Lactobacillus plantarum: Difference between revisions

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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?


"Lactobacillus platarum" has one of the largest genomes among lactic acid bacteria. In its circular chromosome it contains 3,308,274 base pairs.  Putative biological functions have been given to 2,120 of the predicted proteins.  One particular interesting region of the chromosome is the 213-kb region from 3,072,500 – 3,28,500, which encodes proteins for sugar transport, metabolism, and regulation.  This region has a lower percent CG content, leading researchers to believe that many of these genes have been acquired by horizontal gene transfer.
"Lactobacillus platarum" has one of the largest genomes among lactic acid bacteria. In its circular chromosome it contains 3,308,274 base pairs.  Putative biological functions have been given to 2,120 of the predicted proteins.   
[[Image:genome.gif|thumb|Lactobacillus plantarum]]
One particular interesting region of the chromosome is the 213-kb region from 3,072,500 – 3,28,500, which encodes proteins for sugar transport, metabolism, and regulation.  This region has a lower percent CG content, leading researchers to believe that many of these genes have been acquired by horizontal gene transfer.
There are three plasmids.
There are three plasmids.
“L. plantarum” contains two apparently complete prophage genomes, as well as some prophage remnants.
“L. plantarum” contains two apparently complete prophage genomes, as well as some prophage remnants.
[[Image:genome.gif|thumb|Lactobacillus plantarum]]


==Cell Structure, Metabolism and Life Cycle==
==Cell Structure, Metabolism and Life Cycle==

Revision as of 14:56, 24 April 2010

Lactobacillus plantarum


Classification

Domain : Bacteria

Phylum : Firmicutes

Class : Bacilli

Order : Lactobacillales

Family : Lactobacillaceae

Genus : Lactobacillus

Species : plantarum


Lactobacillus plantarum

Description and Significance

L. plantarum is a gram positive bacteria. It is a facultative heterofermentative lactic acid bacterium.

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?

"Lactobacillus platarum" has one of the largest genomes among lactic acid bacteria. In its circular chromosome it contains 3,308,274 base pairs. Putative biological functions have been given to 2,120 of the predicted proteins.

Lactobacillus plantarum

One particular interesting region of the chromosome is the 213-kb region from 3,072,500 – 3,28,500, which encodes proteins for sugar transport, metabolism, and regulation. This region has a lower percent CG content, leading researchers to believe that many of these genes have been acquired by horizontal gene transfer. There are three plasmids. “L. plantarum” contains two apparently complete prophage genomes, as well as some prophage remnants.

Cell Structure, Metabolism and Life Cycle

Interesting features of cell structure; how it gains energy; what important molecules it produces.


Ecology and Pathogenesis

Habitat; symbiosis; biogeochemical significance; contributions to environment.
If relevant, how does this organism cause disease? Human, animal, plant hosts? Virulence factors, as well as patient symptoms.


Often isolated from plant material and the gastrointestinal tract of animals.




Used as a probiotic

Lactobacillus plantarum

References

[Sample reference] Takai, K., Sugai, A., Itoh, T., and Horikoshi, K. "Palaeococcus ferrophilus gen. nov., sp. nov., a barophilic, hyperthermophilic archaeon from a deep-sea hydrothermal vent chimney". International Journal of Systematic and Evolutionary Microbiology. 2000. Volume 50. p. 489-500.

http://www.pnas.org/content/100/4/1990.long


http://www.ncbi.nlm.nih.gov/sites/entrez?Db=genomeprj&Cmd=Retrieve&list_uids=32969


probiotics: http://images.google.com/imgres?imgurl=http://customprobiotics.com/Merchant2/graphics/00000002/L.-Plantarum-100-gram.jpg&imgrefurl=http://customprobiotics.com/Merchant2/merchant.mvc%3FScreen%3DPLST%26Store_Code%3DCP&usg=__kULGdlluS9MDujAAyn4FgT3SV7Y=&h=200&w=138&sz=7&hl=en&start=12&um=1&itbs=1&tbnid=iqfNk1UH2PLLwM:&tbnh=104&tbnw=72&prev=/images%3Fq%3Dl.%2Bplantarum%26um%3D1%26hl%3Den%26client%3Dfirefox-a%26sa%3DG%26rls%3Dorg.mozilla:en-US:official%26tbs%3Disch:1

picture: http://images.google.com/imgres?imgurl=http://www.bacferm.com.au/silac/micro/files/page4_1.gif&imgrefurl=http://www.bacferm.com.au/silac/micro/micro.html&usg=__j6zK9rMES1LdBS9YeouaHB5Cwsk=&h=132&w=200&sz=12&hl=en&start=3&um=1&itbs=1&tbnid=rgIvZ-xu776DtM:&tbnh=69&tbnw=104&prev=/images%3Fq%3Dl.%2Bplantarum%26um%3D1%26hl%3Den%26client%3Dfirefox-a%26sa%3DG%26rls%3Dorg.mozilla:en-US:official%26tbs%3Disch:1

http://www.phototakeusa.com/lbmail.asp?pb=Meningitis&promo=1&co=PHOTOT05&dynamic=&key=&P1=&P2=&P3=&P4=&P5=&P6=&P7=&P8=&P9=&P10=

http://aem.asm.org/cgi/content/short/71/3/1223

Author

Page authored by Stephanie LaHaye and Jason McIntyre, student of Prof. Jay Lennon at Michigan State University.