Environmental Engineering Reference
In-Depth Information
against
Staphylococcus aureus
, which was indicated by clear zones of
3-4 mm in bacterial lawns. Antiviral activity was also observed against
dengue virus and respiratory syncytial virus (RSV) by the same extract
(Victory et al., 2010).
APHANOTHECA BULLOSA
(MENEGHINI) RABENHORST, 1865
Phylum: Cyanobacteria
Class: Cyanophyceae
Order: Chroococcales
Family: Synechococcaceae
Distribution: Europe, Southwest Asia
Habitat: Freshwater paddy ields
Description: This species forms microscopic or macroscopic colonies of sev-
eral centimeters' diameter.
Compounds and activities: The methanolic crude extract (100 µg/ml) of this
species was found to inhibit the growth of Gram-positive bacteria, viz.,
Plesiomonas shigelloides
,
Shigella soonei
,
Bacillus
sp.,
S. aureus
,
V. para-
haemolyticus
,
and
V. cholerae
(Kumar et al.,
2012). The methanolic extracts
of this species have also shown antileishmonial activity against the proto-
zoan parasite
Leishmania donovaini
. Further, this species also possesses
antifungal properties against
Candida albicans
.
OCHROMONAS DANICA
E.G. PRINGSHEIM, 1955
Phylum: Ochrophyta Class: Chrysophyceae
Order: Chromulinales Family: Chromulinaceae
Distribution: Cosmopolitan distribution, South America, Denmark
Habitat: Freshwater habitats
Description: This free-loating phytolagellate is a mixotrophic bacterivore.
The solitary cells (10 µm size) of this chrysophyte are naked and pyriform,
spherical, or ellipsoid. This species is characterized by the presence of
two unequal (long and short) lagella. The chloroplasts, numbering one or
two, are yellow to brown in color.
