Lam.pro.pe' di.a
. Gr. adj.
lampros
bright, radiant; Gr. n.
pedia
a plain, flat country; M.L. fem. n.
Lampropedia
a shining flat sheet (of cells).
Proteobacteria / Betaproteobacteria / Burkholderiales / Comamonadaceae / Lampropedia
Sheets of rounded, almost cubical cells, arranged in square tablets of 16–64 cells
, occasionally separated into pairs or tetrads.
Divide synchronously in a sheet and alternately in two planes
. The cells of a tablet are enclosed within a
complex, structured envelope
. Each cell is enclosed in a
Gram‐negative type of cell wall
. Intracellular granules of
poly
‐β‐
hydroxybutyrate
are prominent. No flagella occur.
Twitching movements
of small groups of cells occur during active growth.
Obligately aerobic
, having a strictly respiratory type of metabolism with oxygen serving as the terminal electron acceptor.
Growth occurs as a thin, hydrophobic, extending pellicle
on the surface of both liquid and solid media. Nonpigmented. Optimal temperature, 30°C. Optimal pH, 7.0. Oxidase and catalase positive. Chemoorganotrophic.
Energy sources are limited to intermediates of the tricarboxylic acid cycle
. Carbohydrates, alcohols, glucosides, and fatty acids are not utilized. Ammonium salts or certain amino acids can serve as sole nitrogen sources.
Vitamins may be required for growth
. The ecological niche is unknown but observations and isolations indicate an environment rich in organic matter.
The mol
%
G
+
C of the DNA is
: 61 (Bd).
Type species
:
Lampropedia hyalina
(Ehrenberg 1832) Schroeter 1886, 151 (
Gonium hyalinum
Ehrenberg 1832, 63.)
