Environmental Engineering Reference
In-Depth Information
Compounds and activities: The extracts of the freeze-dried biomass of this
species have yielded 8-chlorosulfolipids, including the most common
2,2,11,13,15,16-hexachlorodocosane-1,14-disulfate (danicalipin A), which
shows antibiotic properties particularly against
Flectobacillus
(Blom and
Pernthaler, 2010).
POTERIOOCHROMONAS MALHAMENSIS
(PRINGSHEIM) PETERFI, 1969
Phylum: Ochrophyta
Class: Chrysophyceae
Order: Chromulinales
Family: Dinobryaceae
Distribution: Europe
Habitat: Freshwater habitats
Description: This unicellular, mobile ochrophyte has two unequal lagella.
There are vacuoplasts containing leucosin storage vacuole. The reproduction
is by mitosis, cytokinesis, and the vegetative method. Lorica formation is
seen in this species.
Compounds and activities: The fatty acids extracted from the freeze-dried
biomass of this species have shown antibiotic properties particularly
against
Flectobacillus
. Further, the bioactive compound, malhamensilipin
A (disulfate-chlorolipid), of this species serves as an inhibitor of protein
tyrosine kinase and shows antimicrobial and antiviral activities (Kawahara
and Okino, 2012). This species also produces leucosin (= chrysolaminarin),
which is a polysaccharide composed of β-(1-3)-linked d- glucose residues.
Since the leucosin is a biopolymer with cellulose, it is used in the prepara-
tion of thin ilms for wrapping drug capsules.
O
OH
S
Cl
Cl
Cl
O
O
H
3
C
Cl
OH
Cl
Cl
malhamensilipin A
