| malonyl-coa:anthocyanin 5-o-glucoside-6"'-o-malonyltransferase from scarlet sage (salvia splendens) flowers. enzyme purification, gene cloning, expression, and characterization. | the orange to blue coloration of flowers in nature is, in most cases, provided by anthocyanins, a class of plant flavonoids, many of which are modified by malonyl group(s). however, the identity of the enzyme catalyzing the malonylation reaction remains to be established. here, we describe for the first time the purification, characterization, and cdna cloning of an anthocyanin malonyltransferase from scarlet sage (salvia splendens) flowers. the purified enzyme (termed ss5mat1) was a monomeric 5 ... | 2001 | 11598135 |
| proposed mechanism and functional amino acid residues of malonyl-coa:anthocyanin 5-o-glucoside-6'''-o-malonyltransferase from flowers of salvia splendens, a member of the versatile plant acyltransferase family. | the versatile plant acyltransferase (vpat) family is a recently identified protein family consisting of acyltransferases involved in secondary metabolism in plants along with numerous homologues with as yet unidentified biochemical functions. malonyl-coa:anthocyanin 5-o-glucoside-6' "-o-malonyltransferase of salvia splendens flowers (ss5mat1) is a member of this family that catalyzes the regiospecific transfer of the malonyl group from malonyl-coa to the 6' "-hydroxyl group of the 5-glycosyl moi ... | 2003 | 12578391 |
| phytochemical and antimicrobial studies of salvia splendens sello. | the phytochemical investigation of antimicrobial agents from locally occurring salvia splendens sello, was carried out. three common solvents i.e. petroleum ether (40-60%), chloroform and methanol were successively used for the extraction of antimicrobial principles from its various parts. three major compounds (namely c1, c2, and c3) were isolated and purified from the active methanol extract of roots by column and thin layer chromatography. gram-positive bacteria (bacillus pumilus, b. subtilis ... | 1998 | 16414814 |
| time-activity budgets and behaviour of the amazilia hummingbird, amazilia amazilia (apodiformes: trochilidae) in an urban environment. | this study deals with the time-activity budgets of amazilia amazilia, a territorial hummingbird, and its preferences for different flower species and perches in the gardens of lima (peru) in september 2001. a. amazilia spent an important part of its time resting on perches (ca. 80%) and only 15.5% for foraging, devoted essentially to flower visitation and only 0.3% for hunting and drinking water. territorial defence accounted for 2% of total time, mostly against coereba flaveola, an introduced n ... | 2006 | 18491628 |
| response of some common annual bedding plants to three species of meloidogyne. | twelve ornamental bedding plant cultivars were grown in soil infested with isolates of meloidogyne incognita race 1, m. javanica, or m. arenaria race 1 in a series of tests in containers in a growth room. root galling (0-5 scale) and eggs/plant were evaluated 8-10 weeks after soil infestation and seedling transplantation. snapdragon, antirrhinum majus cv. first ladies, was extensively galled and highly susceptible (mean gall rating >/=4.2 and >/=14,500 eggs/plant), and celosia argentea cv. centu ... | 1994 | 19279963 |
| synthetic studies of neoclerodane diterpenoids from salvia splendens and evaluation of opioid receptor affinity. | salvinorin a (1), a neoclerodane diterpene from the hallucinogenic mint salvia divinorum, is the only known non-nitrogenous and specific kappa-opioid agonist. several structural congeners of 1 isolated from salvia splendens (2 - 8) together with a series of semisynthetic derivatives (9 - 24), some of which possess a pyrazoline structural moiety (9, 19 - 22), have been tested for affinity at human mu, delta, and kappa opioid receptors. none of these compounds showed high affinity binding to these ... | 2008 | 20027203 |
| the antihyperglycemic effect of aerial parts of salvia splendens (scarlet sage) in streptozotocin-induced diabetic-rats. | salvia splendens (labiatae) is widely used in indian traditional medicine for the control of diabetes mellitus. in this study, the hypoglycemic effects produced by the acute and subacute administration of various extracts of s. splendens were investigated. both the aqueous extract (ssae) and the methanolic extract (ssme) from the aerial parts resulted in significant reductions of glycemia in streptozotocin (stz)-induced diabetic rats after oral administration at a dose of 100 and 200 mg/kg, resp ... | 2010 | 21808565 |
| sensitivity of bedding plants to southern root-knot nematode, meloidogyne incognita race 3. | thirty-two cultivars of 10 commonly-grown bedding plants, representing eight families, were evaluated for their response to infection by the root-knot nematode, meloidogyne incognita race 3, under greenhouse conditions. four ageratum cultivars, two marigold, and two salvia cultivars were rated resistant after exposure for 8 weeks. four begonia, four celosia, one dianthus, one verbena, one vinca, and three pansy cultivars were susceptible. three salvia, one begonia, one gerber, one verbena, and t ... | 1994 | 19279964 |
| chemical composition and mosquito larvicidal activities of salvia essential oils. | vector control is facing a threat due to the emergence of resistance to synthetic insecticides. in this context, essential oils have received much attention as potentially useful bioactive compounds against insects. therefore, our present study aimed to evaluate the efficacy of essential oils from the aerial parts of salvia elegans vahl, salvia dorisiana standl., salvia splendens sello ex j.a. schult blue ribbon, and s. splendens sello ex j.a. schult scarlet sage red (lamiaceae) against the four ... | 2011 | 21284539 |
| within-plant distribution of aulacorthum solani (hemiptera: aphididae), on various greenhouse plants with implications for control. | foxglove aphid, aulacorthum solani (kaltenbach) (hemiptera: aphididae), has recently undergone a status change from an occasional pest to a serious pest in greenhouses of north america and the united kingdom. little nonanecdotal information exists on the ecology of this insect in greenhouse crops. to help improve integrated pest management decisions for a. solani, the within-plant distribution of this pest was explored on a variety of common greenhouse plants in both the vegetative and flowering ... | 2014 | 24772552 |
| from salmon pink to blue natural sensitizers for solar cells: canna indica l., salvia splendens, cowberry and solanum nigrum l. | study on dye-sensitized solar cells (dsscs) with extracts of canna indica l., salvia splendens, solanum nigrum l. as sensitizers is firstly reported in this paper. dsscs were assembled by using natural dyes extracted from c. indica l., s. splendens, cowberry and s. nigrum l. as sensitizers. the energy conversion efficiency of the cells sensitized with dyes of c. indica l., s. splendens, cowberry and s. nigrum l. was 0.29%, 0.26%, 0.13% and 0.31%, respectively. a novel technique was taken to fabr ... | 2009 | 19762275 |