- Beggiatoa
Taxobox
color = lightgrey
name = "Beggiatoa"
regnum = Bacteria
phylum =Proteobacteria
classis = Gamma Proteobacteria
ordo =Thiotrichales
familia = Thiotrichaceae
genus = "Beggiatoa"
genus_authority = Trevisan 1842
subdivision_ranks = Species
subdivision ="Beggiatoa" is a
filamentous (septate) genus ofproteobacteria , and are among the largestprokaryotes , with cells about 200 micrometres in diameter. "Beggiatoa" can be considered anindicator species since they are present and flourish in marine environments which have been subject topollution , where the bacteria become visible as a whitish layer.Members of this genus are chemosynthetic, meaning that they utilize
inorganic substances for the energy to makecarbohydrates . "B. gigantea" obtains the energy required to survive byoxidizing compounds ofsulfur ; this characteristic means it is classified in theleucothiobacteria .Hydrogen sulfide is thecompound typically oxidized, however its deficiency results in the use of elemental sulfur (oxidized tosulfuric acid ) or ofthiosulfate . There is an average of about 735kJ released per reaction.Beggiatoa and other related filamentous bacteria can cause settling problems in sewage treatment plants, industrial waste lagoons in canning, paper pulping, brewing, milling, causing the phenomenon called Bulking.Beggiatoa are also able to detoxify hydrogen sulfide in soil.
External links
* [http://biology.kenyon.edu/Microbial_Biorealm/bacteria/beggiatoa/beggiatoa.html "Beggiatoa" page]
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