(n.) Spurge, or bastard spurge, a genus of plants of many species, mostly shrubby, herbaceous succulents, affording an acrid, milky juice. Some of them are armed with thorns. Most of them yield powerful emetic and cathartic products.
Example Sentences:
(1) The latices of the three South African species Euphorbia ledienii, Euphorbia coerulescens, and Euphorbia triangularis, belonging to a group of cactiform Euphorbias locally called "Noors," were shown to contain four 12-mono- and three 13,20-diesters of the tetracyclic tigliane type parent alcohol 12-deoxyphorbol [1].
(2) The hexanic extract from the leaves of Euphorbia cotinifolia L. has been experimentally used as molluscicide against Biomphalaria glabrata.
(3) The latex of (Euphorbia esula) has been found to contain highly skin irritant and inflammatory ingenol-3delta 2,4,6,8,10 pentene tetradecanoate and another factor, ingenol-3-dodecanoate, which is less irritating but which can be responsible for the cocarcinogenic activity exhibited by the latex preparation in the mice back skin experiment.
(4) Tree cover is restricted to small patches along streams and some hillsides; there are euphorbia hedges and scattered trees in rural communities and along roadsides.
(5) Molecular characteristics of bombykol and its 11 derivatives, which reveal significant correlations with biological activities for single sex pheromone receptor cells of four moth species, Bombyx mori, Aglia tau, Endromis versicolora, and Deilephila euphorbiae, were examined on the assumption of the "bifunctional unit model."
(6) The ethyl acetate extract and a fraction, KSE-23, isolated chromatographically from the ethyl acetate extract of Euphorbia prostrata, showed significant antiinflammatory activity when topically applied in a murine model of carrageenan footpad oedema.
(7) From the seed oil two irritant Euphorbia factors L5 and L6 and from the latex a mixture of irritant Euphorbia factors were obtained.
(8) From the fresh latex of Euphorbia cooperi N E Br was isolated by partition and chromatographic methods, a diterpene ester 12-deoxyphorbol-16-isobutyrate-13-tigliate.
(9) Euphorbia factor L6 most probably is the 3-tetradeca-2,4,6,8,10-penta-enoic acid ester of ingenol.
(10) The toxic and irritant principles of the seed oil and of the latex of the caper spurge (Euphorbia lathyris L.) were isolated together with several non irritants of similar chemical structure.
(11) Such sensitisation by pollens of Euphorbia fulgens Karw.
(12) Phorbolesters are considered to be responsible for the toxicity of the latex of Euphorbiaceae, e.g., in the case of Euphorbia helioscopia, 12-Desoxyphorbol-13-phenylacetate-2-O-acetate.
(13) The extract of the roots of Euphorbia kansui, which has been widely used in Chinese folk medicine for the treatment of cancer, demonstrated antileukemic activity against the P-388 lymphocytic leukemia in mice.
(14) Application of this model to Euphorbia hirta established that a 100 degrees C aqueous extraction of fresh aerial parts allows efficient extraction of active constituents and that drying the plant material before extraction considerably reduces activity.
(15) An electron microscopical study was made of the coeloconic and placoid sensilla on the antennae of the aphids Aphis pomi, Macrosiphum euphorbiae, Nasonovia ribis-nigri, and Pemphigus bursarius.
(16) By means of a combination of partition and chromatographic methods six irritant constituents were isolated from the fresh latex of Euphorbia fortissima.
(17) 3-Methylquercetin (3MQ) is a natural compound isolated from Euphorbia grantii that selectively inhibits poliovirus replication, but has no effect on encephalomyocarditis virus.
(18) Six compounds have been isolated from the leaves of Euphorbia hirta and identified as gallic acid, quercitrin, myricitriu, 3,4-di-O-galloylquinic acid, 2,4,6-tri-O-galloyl-D-glucose and 1,2,3,4, 6-penta-O-galloyl-beta-D-glucose on the basis of physicochemical and spectroscopic methods.
(19) Latex of Euphorbia tirucalli, collected in Colombia, yielded 12-O-2Z-4E-octadienoyl-4-deoxyphorbol-13-acetate (1), which exhibited an irritant potency equivalent to that of the standard irritant, phorbol-12-tetradecanoate-13-acetate, in a mouse ear test system.
(20) Due to their highly unsaturated acyl groups all Euphorbia factors or factor groups isolated are highly sensitive to autoxidation.
Spurge
Definition:
(v. t.) To emit foam; to froth; -- said of the emission of yeast from beer in course of fermentation.
(n.) Any plant of the genus Euphorbia. See Euphorbia.
Example Sentences:
(1) The toxic and irritant principles of the seed oil and of the latex of the caper spurge (Euphorbia lathyris L.) were isolated together with several non irritants of similar chemical structure.