Micrococcus Yunnanesis: Difference between revisions

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==Cell Structure, Metabolism and Life Cycle==
==Cell Structure, Metabolism and Life Cycle==
Interesting features of cell structure; how it gains energy; what important molecules it produces.
Interesting features of cell structure; how it gains energy; what important molecules it produces.
Cells are Gram-positive, aerobic, non-endospore-forming cocci (0.8–1 μm in diameter). Motility is not observed. Colonies on TSA are yellow, smooth and circular with entire margins. No pigment is produced. Temperature, pH and NaCl tolerance ranges for growth are 4–45 °C, pH 6–8 and 0–15 % (w/v), respectively. Optimal growth occurs at 28 °C and about pH 7.0–8.0. Catalase-positive and oxidase-negative. Gelatin and starch are not hydrolysed. Negative for Methyl red, Voges–Proskauer reaction, urease and the reduction of nitrate.


==Physiology and Pathogenesis==
==Physiology and Pathogenesis==

Revision as of 04:57, 4 December 2016

This student page has not been curated.

Classification

Micrococcus Yunnanesis classification supports the genus Micrococcus by means of a polyphasic approach. Chemotaxonomic data gathered for peptidoglycan type, menaquinones, phospholipids and fatty acids strongly supported the classification of this strain within the genus Micrococcus


Kingdom: Bacteria

Phylum: Actinobacteria

Class: Actinobacteria

Order: Actinomycetales

family: Micrococcacae

[Others may be used. Use NCBI link to find]

Species

NCBI: Taxonomy

Genus species Micrococcus Yunnanensis

Habitat Information

The location of soil sample was collected at Pflugerville lake next to the hike and bike trail. Due to lack of rain the soil was very dry.

Date of Collection: 9/08/2016

Location: 18216 Weiss Lane Pflugerville, TX

Air temperature: 84 degrees F

Humidity: 70%

24-hr Rainfall: 0.00 in

Description and Significance

Micrococcus Yunnanesis is a Gram-positive bacterium that can be found isolated inside plant roots of Polyspora Axillaris. It has cells that are Colony morphology is yellowish, smooth appearance, and circular with entire margins. Strains of this microbe have been re-classified numerous times with previous names such as Microccoccus luteus and Sarcina subflava.

Colony Morphology

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? Include S Ribosomal sequence that you obtained from PCR and sequencing here.


Cell Structure, Metabolism and Life Cycle

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

Physiology and Pathogenesis

Biochemical characteristics, enzymes made, other characteristics that may be used to identify the organism; contributions to environment (if any).
If relevant, how does this organism cause disease? Human, animal, plant hosts? Virulence factors, as well as patient symptoms.

Cells are Gram-positive, aerobic, non-endospore-forming cocci (0.8–1 μm in diameter). Motility is not observed. Colonies on TSA are yellow, smooth and circular with entire margins. No pigment is produced. Temperature, pH and NaCl tolerance ranges for growth are 4–45 °C, pH 6–8 and 0–15 % (w/v), respectively. Optimal growth occurs at 28 °C and about pH 7.0–8.0. Catalase-positive and oxidase-negative. Gelatin and starch are not hydrolysed. Negative for Methyl red, Voges–Proskauer reaction, urease and the reduction of nitrate.

References

Micrococcus yunnanensis sp. nov., a novel actinobacterium isolated from surface-sterilized Polyspora axillaris roots. "International Journal of systemic and Evolutionary Microbiology. 2009. Volume 59 p. 2383-2387

Author

Page authored by Thomas Dominguez and Orelia Daniels