Dictionary > Gammaproteobacteria

Gammaproteobacteria

Definition
noun
(taxonomy) A class within Phylum Proteobacteria that includes unicellular bacteria that are mostly rod-shaped and heterotrophic (with the exception of purple-sulfur bacteria, which are photoautotrophic)
Supplement
The class Gammaproteobacteria belongs to the Phylum Proteobacteria. The phylum includes many other classes, which are referred to using Greek letters, i.e. Alphaproteobacteria, Betaproteobacteria, Deltaproteobacteria, Epsilonproteobacteria, and Zetaproteobacteria. Their name, Gammaproteobacteria, is derived from the Greek letter gamma, which means ‘changeable’, and the Greek proteakos, which means ‘little stick’.1 The Gammaproteobacteria includes many medically and scientifically important bacterial species, e.g. Escherichia coli (pathogenic strains cause gastroenteritis and food poisoning), Salmonella (certain species as causative agent of typhoid fever), Yersinia pestis (causing Bubonic plague), Vibrio cholerae (causing cholera), Pseudomonas aeruginosa (causing lung infections), and so on. Members of this class are unicellular and mostly are bacilli.
Some of the taxonomic orders belonging to the Class Gammaproteobacteria are as follows: Aeromonadales, Alteromonadales, Cardiobacteriaceae, Chromatiales (purple sulfur bacteria), Enterobacteriales, Legionellales (e.g. Legionella pneumophila causing Legionnaires’ disease), Methylococcales, Oceanospirillales , Pasteurellales, Pseudomonadales, Thiotrichales (e.g. Thiomargarita namibiensis, the largest known bacterium), Vibrionales (Vibrio cholerae), Xanthomonadales, etc.
Scientific classification:

See also:

  • Enterobacteria
  • Reference(s):

    1 Holt, J. R. (2013). GAMMAPROTEOBACTERIA. Retrieved from http://comenius.susqu.edu/biol/202/eubacteria/proteobacteriae/gammaproteobacteria/.


    You will also like...

    Chromosomes X and Y and Sex Determination
    Chromosomes X and Y and Sex Determination

    This tutorial looks at sex determination via the sex chromosomes, X and Y. Read it to get more info on X and Y chromosom..

    Peppered moth ("Biston betularia") melanic and light form
    Examples of Natural Selection

    Darwin's Finches are an example of natural selection in action. They are an excellent example of the way species' gene p..

    Neurology of Illusions
    Neurology of Illusions

    Illusions are the perceptions and sensory data obtained from situations in which human error prevents us from seeing the..

    Lotic community of algal species
    Lotic Communities & Algae

    Lotic communities have conditions that are rather harsh for typical plants. Thus, the diversity of plant species in loti..

    Cell structure
    Cell Structure

    A typical eukaryotic cell is comprised of cytoplasm with different organelles, such as nucleus, endoplasmic reticulum, G..

    Transpiration
    Water in Plants

    The movement of molecules (specifically, water and solutes) is vital to the understanding of plant processes. This tuto..

    Related Articles...

    No related articles found

    See all Related Topics