Staphylococcus roseus: Difference between revisions

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Classification
{{Uncurated}}
{{Biorealm Genus}}


Higher order taxa
Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae;


Species


Staphylococcus roseus


Description and Significance
==Classification==
Staphylococcus roseus is a light red to red colored bacterium.


===Higher order taxa===


Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae;


Genome Structure
===Genus species===
   
   
<i>Staphylococcus roseus</i>


===Description and significance===
''Staphylococcus roseus'' is a light red to red colored bacterium.
[[http://microbewiki.kenyon.edu/index.php/Image:]]
[[Image:Stroseus.jpg|frame|center|
  <i>Staphylococcus roseus</i> colonies on TSA exhibiting nondiffusable bright pink pigment.[[http://microbewiki.kenyon.edu/index.php/Image:]] 
<p>Plate provided by C. Marques and C. Dunlap and image taken by M. Glogowski</p>]]


===Genome structure===


Cell Structure and Metabolism


Staphylococcus roseus is a non-motile gram positive cocci that is coagulase negative. The cocci are usually clustered in groups of 4. It gets its name “roseus” from the cultures pigment. Cultures exhibit circular colonies that are convex in shape, and smooth and dry texture. S. roseus is an obligate aerobe. S. roseus creates a alkaline in glucose, but cannot utilize sucrose or lactose. Likewise, S. roseus is able to hydrolyze casein, triglycerides, and starch but not phospholipids. S. roseus also cannot utilize citrate as a carbon source.  Also, S. roseus can be induced to create lysine decarboxylase. S. roseus does not have Cytochrome C as its terminal electron acceptor in its electron transport chain which reveals that it is a staphylococcus, not a micrococcus. S. roseus can break hydrogen peroxide into oxygen and water with catalase. The optimum temperature for growth is around 25 °C.
The inability of the bacterium to utilize oxidase reveals it belongs to the genus Staphylococcus.




Ecology
===Cell structure and metabolism===
   
 
<i>Staphylococcus roseus</i> is a non-motile gram positive cocci that is coagulase negative. The cocci are usually clustered in groups of 4. It gets its name “roseus” from the cultures pigment. Cultures exhibit circular colonies that are convex in shape, and smooth and dry texture. <i>S. roseus</i> is an obligate aerobe. <i>S. roseus</i> creates a alkaline rx in a glucose durham tube, but cannot utilize glucose, sucrose, nor lactose. Likewise, <i>S. roseus</i> is able to hydrolyze casein, triglycerides, and starch but not phospholipids. <i>S. roseus</i> also cannot utilize citrate as a carbon source. Also, <i>S. roseus</i> can be induced to create lysine decarboxylase. <i>S. roseus</i> does not have cytochrome c as an electron acceptor in its electron transport chain which reveals that it is a <i>Staphylococcus</i>, not a <i>Micrococcus</i>. <i>S. roseus</i> can break hydrogen peroxide into oxygen and water with catalase. The optimum temperature for growth is around 25°C.
 
===Ecology===


Pathology


===Pathology===


Current Research
===Current research===
Currently, research is being done to better distinguish the differences between the genera <i>Micrococcus</i>, <i>Staphylococcus</i>, and <i>Sarcina</i>. Because the G+C ratio found in ''S. roseus'' is about 72-72.8%, which leads scientists to believe that these species are more closely related to the genus <i>Micrococcus</i>, instead of <i>Staphylococcus</i>. As of now the deciding factor of what characteristics belong to what group is determined by the utilization of oxidase, which is the test for the presence of cytochrome c. <i>Micrococcus</i> is oxidase positive, while <i>Staphylococcus</i> is oxidase negative.


Currently, research is being done to better distinguish the differences between the genera Micrococcus, Staphylococcus, and Sarcina. Because the G+C ratio found in S. roseus is about 72-72.8%, which leads scientists to believe that these species are more closely related to the genus Micrococcus, instead of Staphylococcus. As of now the deciding factor of what characteristics belong to what group is determined by the utilization of Oxidase, which reveals the presence of Cytochrome C. Micrococcus is oxidase positive, while Staphylococcus is oxidase negative.
<i>Staphylococcus roseus</i> is sensitive to metronidazole. Metronidazole is a medical drug used to treat infections caused by microorganisms."


===References===
Rosypalová1, Alena, J. Boháccaronek1, and S. Rosypal. "Deoxyribonucleic acid base composition of some micrococci and sarcinae". Antonie van Leeuwenhoek. 1966. Volume 32 Number 1/December. p. 192-96.


Geary, Colin, and M. Stevens. "Rapid Lysostaphin Test to Differentiate Staphylococcus and Micrococcus species". Journal of Clinical Microbiology. 1986. Volume 23(6). p. 1044–1045.


Hwang, Joseph, and Betzaida Maya. Microbiology Lab- Unknown: <i>Staphylococcus roseus</i>. Raw data. Loyola University Chicago, Chicago. 23 Apr. 2009.


References
Jones, Dorothy, R. H. Diebel, and C. F. Niven Jr. "Identity of Staphylococcus epidermis".  Journal of Bacteriology. 1963. Volume 85(1). p. 62-67.


"Deoxyribonucleic acid base composition of some micrococci and sarcinae." Deoxyribonucleic acid base composition of some micrococci and sarcinae 1966th ser. 32: 192-96.  
Cowan, S.T. (1974), “Cowan and Steel’s Manual for the identification of the medical bacteria.” Cambridge University Press. Cambridge p. 59.


Geary, Colin, and Michael Stevens. "Rapid Lysostaphin Test to Differentiate Staphylococcus and." Rapid Lysostaphin Test to Differentiate Staphylococcus and 6th ser. 6 (1985): 1044-045.


Hwang, Joseph, and Betzaida Maya. Microbiology Lab- Unknown: Staphylococcus roseus. Raw data. Loyola University Chicago, Chicago. 23 Apr. 2009.


Jones, Dorothy, R. H. Diebel, and C. F. Niven Jr. "Identity of Staphylococcus epidermis." Identity of Staphylococcus epidermis (1962): 62-68.
Created by students of [mailto:mglogow@luc.edu M Glogowski]

Latest revision as of 20:06, 26 August 2010

This student page has not been curated.

A Microbial Biorealm page on the genus Staphylococcus roseus



Classification

Higher order taxa

Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae;

Genus species

Staphylococcus roseus

Description and significance

Staphylococcus roseus is a light red to red colored bacterium. [[2]]

Staphylococcus roseus colonies on TSA exhibiting nondiffusable bright pink pigment.[[1]]

Plate provided by C. Marques and C. Dunlap and image taken by M. Glogowski

Genome structure

Cell structure and metabolism

Staphylococcus roseus is a non-motile gram positive cocci that is coagulase negative. The cocci are usually clustered in groups of 4. It gets its name “roseus” from the cultures pigment. Cultures exhibit circular colonies that are convex in shape, and smooth and dry texture. S. roseus is an obligate aerobe. S. roseus creates a alkaline rx in a glucose durham tube, but cannot utilize glucose, sucrose, nor lactose. Likewise, S. roseus is able to hydrolyze casein, triglycerides, and starch but not phospholipids. S. roseus also cannot utilize citrate as a carbon source. Also, S. roseus can be induced to create lysine decarboxylase. S. roseus does not have cytochrome c as an electron acceptor in its electron transport chain which reveals that it is a Staphylococcus, not a Micrococcus. S. roseus can break hydrogen peroxide into oxygen and water with catalase. The optimum temperature for growth is around 25°C.

Ecology

Pathology

Current research

Currently, research is being done to better distinguish the differences between the genera Micrococcus, Staphylococcus, and Sarcina. Because the G+C ratio found in S. roseus is about 72-72.8%, which leads scientists to believe that these species are more closely related to the genus Micrococcus, instead of Staphylococcus. As of now the deciding factor of what characteristics belong to what group is determined by the utilization of oxidase, which is the test for the presence of cytochrome c. Micrococcus is oxidase positive, while Staphylococcus is oxidase negative.

Staphylococcus roseus is sensitive to metronidazole. Metronidazole is a medical drug used to treat infections caused by microorganisms."

References

Rosypalová1, Alena, J. Boháccaronek1, and S. Rosypal. "Deoxyribonucleic acid base composition of some micrococci and sarcinae". Antonie van Leeuwenhoek. 1966. Volume 32 Number 1/December. p. 192-96.

Geary, Colin, and M. Stevens. "Rapid Lysostaphin Test to Differentiate Staphylococcus and Micrococcus species". Journal of Clinical Microbiology. 1986. Volume 23(6). p. 1044–1045.

Hwang, Joseph, and Betzaida Maya. Microbiology Lab- Unknown: Staphylococcus roseus. Raw data. Loyola University Chicago, Chicago. 23 Apr. 2009.

Jones, Dorothy, R. H. Diebel, and C. F. Niven Jr. "Identity of Staphylococcus epidermis". Journal of Bacteriology. 1963. Volume 85(1). p. 62-67.

Cowan, S.T. (1974), “Cowan and Steel’s Manual for the identification of the medical bacteria.” Cambridge University Press. Cambridge p. 59.


Created by students of M Glogowski

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