Environmental Engineering Reference
In-Depth Information
TETRASPORA CYLINDRICA
(WAHLENBERG) C. AGARDH, 1824
Phylum: Chlorophyta Class: Chlorophycea
Order: Tetrasporales Family: Tetrasporaceae
Distribution: Europe, North America, Asia
Habitat: Freshwater habitats
Description: The colonies of this species may be spherical to amorphous or
highly elongated, cylindrical, or irregularly shaped. The colonies may
have thousands of cells, embedded in a mucilaginous matrix. The cells are
spherical to oval with 5-15 µm diameter. The colonies grow by mitotic
divisions and asexually by zoospores, akinetes, and colony fragmentation.
Compounds and activities: From the extracts of this species, a total of 9 satu-
rated and 11 unsaturated fatty acids have been isolated. The important ones
are β-sitosterol, transphytol, hencicosanoic acid, pentadienoic acid, and
undecatrienoic acid. Among them, the last three compounds have shown
antibacterial and antifungal activities. The percentage values of activities
of these compounds were found to be 17.02, 0.115, and 0.115%, respectively
(Ghazala et al., 2004).
O
O
H
2
C
CH
3
(CH
2
)
18
CH
2
OH
OH
hencicosanoic acid
pentadienoic acid
O
HO
octadecatrienoic acid
