Environmental Engineering Reference
In-Depth Information
LUDWIGIA ADSCENDENS
(LINNAEUS) HARA
Phylum: Magnoliophyta
Class: Magnoliopsida
Order: Myrtales
Family: Onagraceae
Common name: Water primrose
Distribution: Bangladesh
Habitat: Ponds, ditches
Description: This loating herb has rooting and clusters of white, spindle-shaped
pneumatophores at the nodes. The leaves, which are obovate or oblanceo-
late and obtuse, are 2-8 cm long. The lowers are white with ovate petals
1.5 cm long.
Compounds and activities: The stem and leaf extracts of this species have
several bioactive compounds with antimicrobial and anti-inlammatory
activities. The compounds isolated from this species include lavonoid
glycosides, viz., kaempferol-3-glucoside, quercetin-3-O-rhamnoglucoside
(rutin), quercetin-3-galactoside, mericetin-3-rhamnoside, and isosalipurpo-
side. Other compounds isolated include terpenes, triterpenoids, lavonoids,
anthroquinones, phenols, tannins, alkaloids, and ursolic acid. The microbial
inhibitory activities of this plant relate to
Proteus vulgaris
and
S. aureus
.
The MIC values of stem aqueous extract and leaf methanol extract of this
species against
Proteus vulgaris
were found to be 2 and 0.5 mg/ml, respec-
tively. On the other hand, the MIC values of stem hexane extract, stem
methanol extract, leaf ethanol aqueous extract, and leaf methanol extract of
this species against
Staphylococcus aureus
were found to be 0.5, 0.031, 1,
and 0.031 mg/ml, respectively (Jani et al., 2012).
