''Rhodoblastus acidophilus'', formerly known as ''Rhodopseudomonas acidophila'', is a
gram-negative purple non-sulfur bacteria
Purple bacteria or purple photosynthetic bacteria are Gram-negative proteobacteria that are phototrophic, capable of producing their own food via photosynthesis. They are pigmented with bacteriochlorophyll ''a'' or ''b'', together with various ...
.
The cells are rod-shaped or ovoid, 1.0 to 1.3
μm
The micrometre ( international spelling as used by the International Bureau of Weights and Measures; SI symbol: μm) or micrometer (American spelling), also commonly known as a micron, is a unit of length in the International System of Unit ...
wide and 2 to 5 μm long. They are
motile by means of polar
flagella
A flagellum (; ) is a hairlike appendage that protrudes from certain plant and animal sperm cells, and from a wide range of microorganisms to provide motility. Many protists with flagella are termed as flagellates.
A microorganism may have f ...
, and they multiply by
budding. The
photopigments consist of
bacteriochlorophyll a and
carotenoid
Carotenoids (), also called tetraterpenoids, are yellow, orange, and red organic compound, organic pigments that are produced by plants and algae, as well as several bacteria, and Fungus, fungi. Carotenoids give the characteristic color to pumpki ...
s of the
spirilloxanthin series. All strains can grow either under
anaerobic conditions in the light or under
microaerophilic to
aerobic conditions in the dark.
References
Further reading
*
*
*
External links
Type strain of ''Rhodoblastus acidophilus'' at Bac''Dive'' - the Bacterial Diversity Metadatabase
Hyphomicrobiales
{{Hyphomicrobiales-stub