No.car.di.op'sis. N.L. fem. n.
Nocardia
a genus of the order
Actinomycetales
; Gr. fem. n.
opsis
appearance; N.L. fem. n.
Nocardiopsis
that which has the appearance of
Nocardia
.
Actinobacteria / Actinobacteria / Streptosporangiales / Nocardiopsaceae / Nocardiopsis
Gram‐stain‐positive, aerobic, chemo‐organotrophic,
nonacid‐fast
, nonmotile filamentous actinomycetes. Substrate mycelium is well developed and hyphae are long and densely branched.
Fragmentation into coccoid and bacillary elements may occur
. Aerial mycelium is well developed and sparse‐to‐abundant;
aerial hyphae are long
, branched,
straight to flexuous, or irregularly zig‐zagged, completely fragmenting into spores of various lengths. Spore surface is smooth. Wall peptidoglycan
contains
meso
‐diaminopimelic acid
and the muramic acid of the peptidoglycan is acetylated. No diagnostic sugars are found in whole‐organism hydrolysates.
Mycolic acids are absent
. Major phospholipids are
phosphatidylcholine
, phosphatidylmethylethanolamine, phosphatidylglycerol, and phosphatidylinositol, with small amounts of diphosphatidylglycerol. Menaquinones are predominantly variably hydrogenated with ten isoprene units (
MK‐10
), with minor amounts of the
MK‐9
and/or
MK‐11
series. The main fatty acids are branched and
10‐methyl‐branched fatty acids, 14‐methyl‐heptadecanoic acid, and 14‐methyl‐hexadecanoic acid
. Growth temperature range is 10–45°C. Widely distributed in saline and alkaline soils, and found in compost, vegetable matter, indoor environments, and clinical material of animal and human origin.
DNA G
+
C content
(
mol
%): 64–69.
Type species
:
Nocardiopsis dassonvillei
(Brocq‐Rousseu 1904) Meyer 1976, 487
AL
.