(n.) A name of several annual weeds. See Goosefoot, and Lamb's-quarters.
Example Sentences:
(1) Very low amounts of pigweed-type and nettle pollen appear in April.
(2) Weeds elicit two levels of allergenicity, a high level by the Ragweeds and other members of the Asteraceae, and a much lower level by members of the families Amaranthaceae (Pigweed, Western Water Hemp), Chenopodiaceae (Lamb's Quarters, Kochia, and Russian Thistle), and Plantaginaceae (Plantain) in the St. Louis, Missouri area.
(3) Leaves of 10 plant species, 7 with photorespiration (spinach, sunflower, tobacco, pea, wheat, bean, and Swiss chard) and 3 without photorespiration (corn, sugarcane, and pigweed), were surveyed for peroxisomes.
(4) Homogenates of pigweed leaves (no photorespiration) contained from one-third to one-half the activity of the glycolate pathway enzymes as found in comparable preparations from spinach leaves which exhibit photorespiration.
(5) In early August pollen counts begin to rise with the primary pigweed-type pollination season and the first ragweed pollen.
(6) With this method, similar antigenic determinants were found between short ragweed and giant ragweed, cocklebur, lamb's-quarter, rough pigweed, marsh elder, and goldenrod.
(7) Twenty-two young cows died or were euthanatized after intoxication associated with ingestion of redroot pigweed (Amaranthus retroflexus) growing in marginal grass pasture.
(8) Data from pigweed on the absence of photorespiration yet abundance of enzymes associated with glycolate metabolism is inconsistent with current hypotheses about the mechanism of photorespiration.
(9) Grand Rapids) and pigweed (Amaranthus albus L.) seeds.
(10) In contradistinction to Artemisia (sage), there are two exceptions such as in south China: In Shenghai, Ricinus (castor bean) and Humulus (Hops) are found to be the major offender instead of Artemisia (sage) and At Kwangzhou, Kwangdong province Wood Ephedra, Wild Amaranth (pigweed) are also found to be major offenders instead of Artemisia (sage).
(11) However, only traces of peroxisomal enzymes were separated by sucrose gradient centrifugation of particles from pigweed.
(12) A major weed pollen season (May through Dec.) consisted of ragweed, Mexican tea, pigweed, dog fennel, and false nettle.
(13) Rabbits fed Amaranthus retroflexus (redroot pigweed) did not develop lesions of renal toxicosis reported in other species fed this plant.
Portulaca
Definition:
(n.) A genus of polypetalous plants; also, any plant of the genus.
Example Sentences:
(1) The effects of aqueous (AEE), dialysable (DIF) and methanol (MEE) extracts of Portulaca oleracea stems and leaves were compared with those of dantrolene sodium and methoxyverapamil (D-600) with respect to inhibition of twitch tension on the rat phrenic nerve-hemidiaphragm and with respect to contracture induced by nicotinic agonists on the frog rectus abdominis preparations.
(2) "Shen Yan Ling" (SYL) is a compound herbal preparation consisting of 16 ingredients: Herba Ecliptae, Radix Rhemanniae, Rhizoma Cibotii, Radix Angelica Sinensis, Rhizoma Ligustici Chuanxiong, Radix Paeoniae Rubra, Rhizoma Diosocoreae, Poria, Radix Sanguisorbae, Radix Rubiae, Herba Portulacae, Fructus Gardeniae, Herba Cirsii Japonici, Herba Cephalanoploris, etc.
(3) An aqueous extract of Portulaca oleracea leaves and stems produced a dose-dependent relaxation of guinea pig fundus, taenia coli and rabbit jejunum and a dose-dependent contraction of the rabbit aorta.
(4) Among the 17 herbs Glycyrrhiza uralensis, Bupleurm chinense, Portulaca grandiflora and Cnidium monnieri have been found in other tests to be effective against mutagenesis induced by cyclophosphamide in mice.
(5) The aqueous extract of Portulaca oleracea produced skeletal muscle relaxation in rats following i.p.
(6) The best results were obtained from Heliotropium campechianum, Jazminum sambac and Portulaca oleracea.
(7) The skeletal muscle relaxant properties of an aqueous extract of Portulaca oleracea were examined on the twitch and tetanus tension evoked by electrical stimulation using the rat phrenic nerve-hemidiaphragm and frog sciatic nerve-sartorius muscle preparations and on contractures induced by nicotinic agonists using the rat rectus abdominis muscle preparation.
(8) omega-3 fatty acids, alpha-tocopherol, ascorbic acid, beta-carotene and glutathione determined in leaves of purslane (Portulaca oleracea), grown in both a controlled growth chamber and in the wild, were compared in composition to spinach.
(9) Extracts of Portulaca oleracea inhibited twitch tension due to direct (MS) and indirect electrical stimulation via the phrenic nerve (NS) of the rat hemidiaphragm muscle.