| mycotoxicity in leaves of some higher plants with special reference to that of ageratum houstonianum mill. | | 1983 | 6656843 |
| ageratum houstonianum toxicosis in zebu cattle. | ageratum houstonianum (ageratum, flossflower, blue billygoat weed) is an annual plant that tends to become a pest in gardens and pastures. clinical signs for a. houstonianum toxicosis in cattle are characterized by either an acute hemorrhagic course or sub-acute photodynamic dermatitis. the toxicosis has often been associated with holstein-friesian or crossbreed holstein cattle less resistant to tropical climate conditions. during a recent especially dry spring about 40 adult zebu cattle were fo ... | 2004 | 15303392 |
| a study of the acaricidal properties of an essential oil extracted from the leaves of ageratum houstonianum. | study on acaricide property of foam soap containing essential oil of ageratum houstonianum leaves was tested on rhipicephalus lunulatus. four doses of the oil (0.00, 0.02, 0.025 and 0.03 microl/g) with four replications for each dose were used in vitro. each replication consisted of 10 ticks in a petri dish with filter paper impregnated uniformly with the foam soap on the bottom. the same four doses in three replications were used in vivo. each replication was made up of 10 naturally ticks infes ... | 2005 | 15740869 |
| 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 |
| chemical composition and antibacterial activity of essential oils of lantana camara, ageratum houstonianum and eupatorium adenophorum. | essential oils have applications in folk medicine, food preservation, and as feed additives. the essential oils of lantana camara linn. (verbenaceae), ageratum houstonianum mill. (asteraceae) and eupatorium adenophorum spreng. (asteraceae) were analyzed by gas chromatography-mass spectrometry (gcms). in l. camara oil, of the total identified (83.91%) volatile constituents, five constituents [3,7,11-trimethyl-1,6,10-dodecatriene (28.86%), beta-caryophyllene (12.28%), zingiberene (7.63%), gamma-cu ... | 2010 | 20645797 |
| isolation, partial purification and evaluation of bioactive compounds from leaves of ageratum houstonianum. | the present study deals with the isolation and partial purification of bioactive compounds from the crude methanol extracts of the leaves of ageratum houstonianum (asteraceae). the quantification and the identification of compounds in the crude extract and active bands isolated by preparative tlc were accomplished using gc-ms analysis. the most important compounds identified in the crude extract and active bands (ab-1 and ab-2) were 6-acetyl-7-methoxy-2, 2-dimethylchromene, hexadecanoic acid and ... | 2012 | 27350770 |
| 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 |
| genetic diversity of subgroup 1 ilarviruses from eastern australia. | this is the first report of the genetic diversity within ilarvirus subgroup 1 from eastern australia. it supports the separation of tobacco streak virus (tsv) strains from parthenium (parthenium hysterophorus) and crownbeard (verbescina encelioides) based on serology and host specificity. it has confirmed one previously described strain of tsv as a member of the species strawberry necrotic shock virus and another as a new subgroup 1 ilarvirus, ageratum latent virus (aglv), from ageratum houstoni ... | 2013 | 23474983 |
| effect of ageratum houstonianum mill. (asteraceae) leaf extracts on the oviposition activity of anopheles stephensi, aedes aegypti and culex quinquefasciatus (diptera: culicidae). | plant extracts have been studied extensively for their insecticidal activity against immature stages and adult mosquitoes. they have also been reported to influence the habitat preference of ovipositing mosquitoes. ageratum houstonianum, a medicinal plant belonging to the family asteraceae, has been reported to possess insecticidal activity, and in the present study, the ovipositional attractant/deterrent activity was studied. the effect of ageratum houstonianum crude leaf extracts on the ovipos ... | 2012 | 22903449 |
| eco-physiological performance of two invasive weed congeners (ageratum conyzoides l. and ageratum houstonianum mill.) in the indo-gangetic plains of india. | morphological (easily measureable) and physiological (hard to measure) traits of two closely related invasive alien congeners-ageratum conyzoides l. and ageratum houstonianum mill. were studied with a perspective that which species will be potentially be more successful as an invader in the indo-gangetic plains of india. leaf construction cost (lcc) is considered as a quantifiable measure of energy demand for biomass production and is related to energy use efficiency as it include component of b ... | 2011 | 20848310 |
| an enzoinformatics study targeting polo-like kinases-1 enzyme: comparative assessment of anticancer potential of compounds isolated from leaves of ageratum houstonianum. | natural products from plant sources, embracing inherently ample structural diversity than synthetic ones are the major sources of anticancer agents and will constantly play as protagonists for discovering new drugs. polo-like kinases (plks) play a leading role in the ordered execution of mitotic events and 4 mammalian plk family members have been identified. plk1 is an attractive target for anticancer drugs in mammalian cells, among the four members of plks. the present study expresses the molec ... | 2014 | 24914294 |
| compounds isolated from ageratum houstonianum inhibit the activity of matrix metalloproteinases (mmp-2 and mmp-9): an oncoinformatics study. | in osteosarcoma tissue, both mmp-2 and mmp-9 are over expressed compared to their expression in non-affected stromal tissue. hence, gelatinases are attractive targets for anti-osteosarcoma drugs. | 2014 | 24695379 |
| predicting incursion of plant invaders into kruger national park, south africa: the interplay of general drivers and species-specific factors. | overcoming boundaries is crucial for incursion of alien plant species and their successful naturalization and invasion within protected areas. previous work showed that in kruger national park, south africa, this process can be quantified and that factors determining the incursion of invasive species can be identified and predicted confidently. here we explore the similarity between determinants of incursions identified by the general model based on a multispecies assemblage, and those identifie ... | 2011 | 22194893 |
| uptake of metals and metalloids by plants growing in a lead-zinc mine area, northern vietnam. | this study was conducted to evaluate the phytoremediation and phytomining potential of 10 plant species growing naturally at one of the largest lead-zinc mines in northern vietnam. total concentrations of heavy metals and arsenic were determined in the plant and in associated soil and water in and outside of the mine area. the results indicate that hyperaccumulation levels (mg kg(-1) dry weight) were obtained in houttuynia cordata thunb. (1140) and pteris vittata l. (3750) for arsenic, and in ag ... | 2011 | 21227580 |
| ethnobotanical study of the medicinal plants from tlanchinol, hidalgo, méxico. | the people in mexico still depend upon the use of medicinal plants to treat simple health problems, including those who live in regions like tlanchinol hidalgo, where it is still possible to find people who speak the pre-hispanic nahua language. this area is surrounded by rain forest, which is more or less well conserved, so ethnopharmacological field studies are quite relevant. the cultural knowledge about the use of medicinal plants converge with the richness in the surrounding flora making th ... | 2009 | 19146936 |
| species composition, distribution, life forms and folk nomenclature of forest and common land plants of western chitwan, nepal. | this paper enumerates 349 plant species belonging to 77 families of vascular plants collected in the winter seasons of 1996 and 2000 by the flora teams of the population and ecology research laboratory, nepal. of the total species, 249 species belong to dicotyledons, 87 species to monocotyledons and 13 species to pteridophytes. among the families, dicotyledons contributed the highest number of families (55 in number) followed by monocotyledons and pteridophytes. in the study areas, species compo ... | 2005 | 22962539 |
| emamectin, a novel insecticide for controlling field crop pests. | emamectin is a macrocyclic lactone insecticide with low toxicity to non-target organisms and the environment, and is considered an important component in pest-management programmes for controlling field crop pests. it is a powerful compound for controlling the cotton bollworm helicoverpa armigera (hübner). a spray concentration of 25 mg ai litre-1 in a cotton field resulted in over 90% suppression of h armigera larvae up to day 28 after treatment, while similar mortality of the egyptian cotton l ... | 2002 | 12449526 |
| analysis of precocenes in the essential oil of ageratum spp. by reverse-phase high-performance liquid chromatography. | the chromenes precocene i (7-methoxy-2,2-dimethylchromene) and precocene ii (6,7-methoxy-2,2-dimethylchromene) extracted from ageratum houstonianum and a. conyzoides have been analysed by reverse-phase high-performance liquid chromatography. separation was achieved using a c18 column eluted with a linear gradient of acetonitrile and water. precocenes i and ii in the essential oils were determined to be 270 +/- 23 and 482 +/- 34 mg/ml in a. houstonianum, and 687 +/- 21 and 20 +/- 2 mg/ml in a. co ... | 2015 | 11705333 |
| pyrrolizidine alkaloids from ageratum houstonianum mill. | four pyrrolizidine alkaloids (pa) were isolated from ageratum houstonianum and their structures elucidated by spectroscopical methods. besides the already known lycopsamine three new pa were found. their structures are the 2s-2-hydroxy-2,3-dimethyl-butanoyl-o(9) as well as the o(7) esters of retronecine and the o(9) derivative of heliotridine. | 2001 | 11454357 |
| genetics of self incompatibility in diploid ageratum houstonianum mill. | diallels and backcrosses among self-incompatible (si) clones and progeny of ageratum houstonianum mill. could be organized into intra-incompatible classes. four of 5 progenies segregated in expected ratios of s genotypes. ageratum expressed a one-locus incompatibility system of the sporophytic type with a linear dominance series of multiple alleles and complete allelic dominance in both pollen and stigma. in the second part of the study, a high percentage of self-seed set was observed during the ... | 1982 | 24270877 |