Environmental Engineering Reference
In-Depth Information
H
3
C H
3
Cl
CH
3
CH
2
N
+
C
-
HN
hapalindole
CHROOCOCCUS DISPERSUS
(KEISSLER) LEMMERMANN, 1904
Phylum: Cyanobacteria Class: Cyanophyceae
Order: Chroococcales Family: Chroococcaceae
Distribution: Europe, South America, Southwest Asia, Southeast Asia,
Australia, New Zealand
Habitat: Rice ields, lakes
Description: This species has small, loating colonies. Each colony may have
5-40 subspherical or elliptical cells of 3-5 µm size. The colonies may be
embedded in colorless mucilage or with a narrow distinct sheath.
Compounds and activities: The methanolic extracts of this species have shown
a widespread spectrum of antibacterial activities. The observed values of
inhibition zone diameter (mm) for the bacterial species,
S. aureus
,
S. epi-
dermidis
,
B. subtilis
,
E. coli
,
S. typhi
,
and
P. aeruginosa
, were 10, 8, 10, 8,
10, and 8, respectively. The antifungal activity of the supernatants of this
species was observed for the fungal species,
C. kefyr
,
A. fumigatus
,
and
A. niger
,
and the values of inhibition zone diameter were 14, 8, and 11 mm,
respectively (Ghasemi et al.,
2007).
