Three compounds, 20-O-acetyl-[3-O-(2'E,4'Z)-decadienoyl]-ingenol (1), 20-O-acetyl-[5-O-(2'E,4'Z)-decadienoyl]-ingenol (2) and 3-O-(2'E,4'Z)-decadienoylingenol (3), were isolated from Euphorbia kansui under the bioassay-guided method. Each compound showed the same antinematodal activity against the nematode, Bursaphelenchus xylophilus, at a minimum effective dose (MED) of 5 microg/cotton ball.

Seven new carolignans, including two pairs of enantiomers (±)-erythro-7'-methylcarolignan E (1a/1b) and (±)-threo-7'-methylcarolignan E (2a/2b), (+)-threo-carolignan E (3a), (+)-erythro-carolignan E (4a), and (-)-erythro-carolignan Z (5), together with four known lignans (3b, 4b, 6, and 7) and six polyphenols (8-13) were isolated from the aerial parts of Euphorbia sikkimensis. The structures of...

The mortality caused to the snail Bulinus wrighti (The snail vector of urinary schistosomiasis) by different extracts of two species of plants belonging to the family Euphorbiaceae has been investigated. It was found that very low concentrations of fresh leaf extracts were effective in killing the snail. The LC50 of methanol and acetone extracts for Euphorbia schimperiana and Euphorbia heliosco...

KUMBHAR B. A. AND DABGAR Y. B. Dept. of Biotechnology, Sheth M.N. Science College, Patan (Gujarat) India R.R. Mehta College of Science and C.L. Parikh College of Commerce, Palanpur (Gujarat) India Abstract This study investigated the allelopathic effects of various weed (Euphorbia thiamifolia L.) plant parts on pigeon pea germination and seedling growth. Aqueous extracts of Euphorbia thiamifoli...

The use of plant extract as poisons for hunting and fishing is common among fishermen of various countries. Fish poisons from plants are also known as piscicides or inchthyotoxins. Several plant species are known to possess bioactive compounds that are toxic to fish. The piscicidal activity of methanolic latex extracts of Euphorbia antiquorum plant belonging to Family: Euphorbiaceae against Poe...