Planctomyces brasiliensis: Difference between revisions
| Line 17: | Line 17: | ||
''Planctomyces brasiliensis'' | ''Planctomyces brasiliensis'' | ||
Planctomyces brasiliensis is an aquatic bacteria that belongs to the Planctomycetales order, whose habitat are salt pits. Its name can be broken into two parts for a better understanding of the meaning of this species. Planctomyces comes from the Greek word “Planktos”, which means floating and “mukes”, which means fungus. In other words, a floating fungus (Scheuner et al, 2014). Brasiliensis is a Latin that describes where this bacteria belongs to or where it was first isolated, which in this case is Brazil (Scheuner et al, 2014). P. brasiliensis was first isolated in Brazil in the year 1982 at Lagoa Vermehla located in the Atlantic coast north of Rio de Janeiro. | |||
P. brasiliensis consist of a 0.7 – 1.8 µm diameter, its characteristic shape consist of a spherical to egg-shaped (Krieg et al, 2011). Its cell wall lacks peptidoglycan but it does have a proteinaceous layer, which makes it more likely to be a gram-negative bacteria (Jeske et al, 2014). The colonies of P. brasiliensis are dry and rough, its colony color at its maximum temperature growth can vary from yellow to ochre. The optimum growth temperature is from 27 to 35 °C (Scheuner et al, 2014). It has cellular appendages such as fibrils that are all randomly distributed around the cell. A single flagellum of about 20 nm can be observed (Scheuner et al, 2014) in P. brasiliensis, although no motility has been reported yet (Krieg et al, 2011) | |||
==Genome and genetics== | ==Genome and genetics== | ||
Revision as of 22:32, 12 February 2017
This Funk Microbial Biorealm Genus template page is a guide for each student when creating and adding an entirely new species to MicrobeWiki. COPY AND PASTE this entire template (below) to set up a new page for a new species entry, then begin to fill in and edit the page. State at the bottom of the page that the page is "Authored by [your Student Name]" in front of "a student of CJ Funk at John Brown University".
Classification
Higher order taxa
Bacteria; Planctomycetes; Planctomycetacia; Planctomycetales; Planctomycetaceae [Others may be used. Use NCBI link to find]
Species
|
NCBI: Taxonomy |
Planctomyces brasiliensis
Planctomyces brasiliensis is an aquatic bacteria that belongs to the Planctomycetales order, whose habitat are salt pits. Its name can be broken into two parts for a better understanding of the meaning of this species. Planctomyces comes from the Greek word “Planktos”, which means floating and “mukes”, which means fungus. In other words, a floating fungus (Scheuner et al, 2014). Brasiliensis is a Latin that describes where this bacteria belongs to or where it was first isolated, which in this case is Brazil (Scheuner et al, 2014). P. brasiliensis was first isolated in Brazil in the year 1982 at Lagoa Vermehla located in the Atlantic coast north of Rio de Janeiro.
P. brasiliensis consist of a 0.7 – 1.8 µm diameter, its characteristic shape consist of a spherical to egg-shaped (Krieg et al, 2011). Its cell wall lacks peptidoglycan but it does have a proteinaceous layer, which makes it more likely to be a gram-negative bacteria (Jeske et al, 2014). The colonies of P. brasiliensis are dry and rough, its colony color at its maximum temperature growth can vary from yellow to ochre. The optimum growth temperature is from 27 to 35 °C (Scheuner et al, 2014). It has cellular appendages such as fibrils that are all randomly distributed around the cell. A single flagellum of about 20 nm can be observed (Scheuner et al, 2014) in P. brasiliensis, although no motility has been reported yet (Krieg et al, 2011)
Genome and genetics
a. To what major branch of the prokaryotes do they belong? (see textbook or Bergey’s). List 2-3 closely related but separate species or genera of bacteria.
b. Briefly describe any extra-chromosomal elements or genetic tools that are used to study the bacterium: viruses, plasmids, transposons that allow genetic manipulation and analysis.
c. Has the genome or genomes been sequenced? If so, include the website for the database and one or two highlights of the genome. Also indicate genome size (base pairs), %G+C (nucleotide base composition) and number of genes, and specific genes or gene regions that are unique to this organism. If it has not been sequenced, give its closest relative that has been sequenced, its website, and some general information about the related sequence.
Example: The sequence of Haemophilus influenzae was determined using whole genome shotgun sequencing (Fleischmann et al. 1995).
Nutrition and metabolism
a.Describe the growth characteristics of your bacterial species; sources of C, N, electrons; respires/ferments, uses O2, etc.
b.What kinds of culture conditions (temp, pH, media) are needed for laboratory study?
c.What kinds of waste, by-products, volatile compounds are generated?
Ecology / Pathology
Ecology: How is your microorganism important in the ecosystem where it is found? How does it impact other organisms in the environment (could be positive or negative impact)?
Pathology: How does the microbe cause disease as it interacts with the host? Describe any specific toxins or pathways that are used for invading and causing disease in the host. What treatment is used to inhibit or kill the microbe?
Current Research
Describe recent research and findings that have been done with this organism. The research can be clinical, applied or basic research. This section should be based on 2 recent papers (10 years or less) and summarized in your own words.
References
The format for citations and for the “References” list will follow the “Citation—Name” Council of Science Editors (CSE) format, as the suggested formatting method listed on the MicrobeWiki Home page. The reference list will be numbered based on an alphabetical list of the first author’s last name.
A style guide for the CSE format can be found here: http://writing.wisc.edu/Handbook/DocCSE_CitationSystems.html.
For an example, see this entry: https://microbewiki.kenyon.edu/index.php/Bacillus_anthracis
Authored by [Fidel Gallegos], a student of CJ Funk at John Brown University
