Encyclopedia > Bdellovibrio

  Article Content

Bdellovibrio

Bdellovibrio is a genus of Gram-negative, obligate aerobic bacteria.

One of its more notable characteristics of this genus is that members parasitize other gram-negative bacteria by entering into their periplasmic space[?] and feeding on the cytoplasmic fluid of it's host. When the host dies, a Bdellovibrio bacterium becomes a bdelloplast, elongates, and then divides.

Bdellovibrio species are found in river water or soil and live an intraperiplasmic existence. To enrich for Bdellovibrio use NB/500 (nutrient broth at 1:500 dilution) and mix with hot soft agar with E. coli at 30°C for one week.

Under the microscope, a Bdellovibrio appears as a comma-shapped motile rod that is about 0.3 by 1.5µ in size with a barely discernible flagellum. Colonies of Bdellovibrio show up as a growing clear plaque in an E. coli lawn.

Bdellovibrio attack other gram-negative bacteria, enter into their periplasmic space, drain the host of nutrients, becomes a spherical bdelloplast, then elongates, and divides.



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
List of rare diseases starting with A

... X linked[?] Anencephaly Aneurysm of sinus of Valsalva[?] Aneurysm, intracranial berry[?] Aneurysm[?] Angel shaped phalangoepiphyseal dysplasia[?] Angelma ...

 
 
 
This page was created in 30.9 ms