Environmental Engineering Reference
In-Depth Information
RANUNCULUS SIEBOLDII MIQ AND
RANUNCULUS SCELERATUS LINNAEUS
Phylum: Magnoliophyta
Class: Magnoliopsida
Order: Ranunculales
Family: Ranunculaceae
Ranunculus sieboldii
Common name: Swamp buttercup
Distribution: China
Habitat: Wet habitats, rivers
Description: In this herbaceous dicot species, the leaves are palmate and
the lowers, which are medium to large sized, are showy.
Ranunculus sceleratus
Common name: Cursed buttercup
Distribution: North America, Europe, Asia
Habitat: Ponds, stream banks, wet and moist habitats
Description: This annual herb grows to 0.5 m and has leaves with small
blades that are deeply lobed or divided into three lealets. The lowers,
which measure a few millimeters long, have three to ive yellow petals.
Compounds and activities: The antiviral compounds isolated from these
species include apigenin 4′-O-α-rhamnopyranoside, apigenin 7-O-β-
glucopyranosyl-4-O-α-rhamnopyranoside, tricin-7-O-β-glucopyranoside,
tricin, and isoscopoletin. These compounds have been reported to show
inhibitory activities against hepatitis B virus (HBV) replication. The com-
pound isoscopoletin showed signiicant inhibitory effects on the expression
of HBs Ag and HBe Ag secretion from HepG2.2.15 cells. The compound
protoatechuyl aldehyde of this species has acted against herpes simplex
virus type 1 (HSV-1). The above compounds have great potential in tradi-
tional application of HBV therapy (Li et al., 2005). These plants have also
been found to possess anti-inlammatory, antihistaminic, and antimicrobial
activities and are used in traditional medicines for the treatment of jaun-
dice, hepatitis, asthma, rheumatic arthritis, stomachache, and toothache.
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