| respiratory allergy to the pollen of mercurialis annua (euphorbiaceae). | we have described ten cases of respiratory allergy to the pollen of mercurialis annua in the area of bordighera (riviera dei fiori) on the italian mediterranean coast. the incidence of sensitivity is only 0.9% in a population of 1081 patients with pollinosis. since the euphorbiaceae family (spurges) contains strongly sensitizing allergens (eg, seeds of ricinus communis and latex of hevea brasiliensis) our findings raise the possibility that respiratory allergy to the pollens of mercurialis annua ... | 1993 | 8452320 |
| suspected annual mercury (mercurialis annua) poisoning of lambs grazing fallow arable land. | | 1995 | 8748173 |
| mercurialis annua: characterization of main allergens and cross-reactivity with other species. | a multicentric study was conducted to evaluate the frequency of mercurialis annua pollen sensitization in several areas of spain and to select a population sample to characterize the main allergenic components in m. annua pollen. patients were recruited from six hospitals in spain. out of 420 patients sensitized to pollens, 195 (46.4%) showed positive skin tests to m. annua, thus evidencing the high level of sensitization to the pollen of this plant in spain. thirty-seven sera with rast class va ... | 1997 | 9104791 |
| production and characterization of profilin monoclonal antibodies. | profilins have been identified as a pan-allergen of different plant pollens and foods. in this paper, we describe the generation of monoclonal antibodies (mabs) by immunizing balb/c mice with helianthus annuus purified profilin in order to characterize this important and common allergen. a panel of forty mabs has been obtained, and twenty of them were used to map antigenic determinants in this molecule. at least two different antigenic determinants were recognized in h. annuus profilin by immuno ... | 1997 | 9208051 |
| variability in the pattern of random amplified polymorphic dna. | the random amplified polymorphic dna (rapd) technique is a simple method to detect dna polymorphism. it is sensitive to reaction conditions. small changes in the reactants' concentration cause variations in amplification products. using dna from asparagus officinalis, dactylis glomerata, mercurialis annua and escherichia coli, we examined variability in the amplification pattern associated with reaction constituents. an increase in the ratio of taq dna polymerase to dna in the reaction increased ... | 1997 | 9504820 |
| characterization of recombinant mercurialis annua major allergen mer a 1 (profilin). | two major allergens (mer a 1a and mer a 1b), tentatively identified as profilin, have been described in the euphorbiacea, mercurialis annua. | 1998 | 9525453 |
| aeroallergens in clinical practice of allergy in india. an overview. | allergic diseases such as bronchial asthma, allergic rhinitis and atopic dermatitis are dramatically increasing all over the world including developing countries like india. today, more than 30 % of the population is known to suffer from one or other allergic ailment. major causative agents implicated are pollen grains, fungal spores, dust mites, insect debris, animal epithelia, etc. several aerobiological studies have been conducted in different parts of the country to ascertain aerial concentr ... | 2003 | 14677902 |
| experimental and natural weed host-virus relations. | weeds, as alternative hosts of plant viruses and nutrient plants of virus vectors play important role in virus ecology and epidemiology. the aim of our study was to discover new weed-virus relations. therefore some weed species were mechanically inoculated with 28 viruses (strains or isolates) maintained in our glasshouse. different weed species with and without visible symptoms were collected from agro-, water ecosystems and wastelands of hungary between 1997 and 2003. virus infections were eva ... | 2004 | 15759395 |
| evidence for host genome involvement in cytokinin metabolism by male and female cells of mercurialis annua transformed by strain 15,955 of agrobacterium tumefaciens. | when male and female individuals of a dioecious species mercurialis annua l. were inoculated with the same strain of agrobacterium tumefaciens (15,955), the corresponding tumor tissues of each sex clearly differed in their endogenous cytokinin content; only the male tumors had a morphogenetic feminizing effect on male flowers.in male tumor tissues, zeatin (z) in higher quantity than ribosyl-zeatin (rz) became the major metabolite in contrast with the general situation for crown-galls; the female ... | 1984 | 16663368 |
| rapid displacement of a monoecious plant lineage is due to pollen swamping by a dioecious relative. | interspecific hybridization is recognized as a potentially destructive process that represents a major threat to biodiversity. the rate of population displacement by hybridization can be rapid, but underlying mechanisms are often obscure. one hypothesis is that a species may be driven to extinction by interspecific gene flow, or pollen swamping, when hybrids are inviable or sterile. here, we document the rapid movement of two zones of contact between monoecious hexaploid and dioecious diploid po ... | 2006 | 16713956 |
| sexual systems and measures of occupancy and abundance in an annual plant: testing the metapopulation model. | the need for reproductive assurance during dispersal, along with the pressure of local mate competition, means that the importance of frequent or repeated colonization is implicit in the sexual-system evolution literature. however, to date there have been few empirical tests of the association between colonization and the sexual system in plants. here we provide such a test by comparing occupancy and abundance of populations of the european plant mercurialis annua across regions characterized by ... | 2007 | 17206581 |
| ecological differentiation and diploid superiority across a moving ploidy contact zone. | plant polyploid complexes provide useful model systems for distinguishing between adaptive and nonadaptive causes of parapatric distributions in closely related lineages. polyploidy often gives rise to morphological and physiological changes, which may be adaptive to different environments, but separate distributions may also be maintained by reproductive interference caused by postzygotic reproductive isolation. here, we test the hypothesis that diploid and descendent polyploid races of the win ... | 2007 | 17300432 |
| reduced responses to selection after species range expansion. | species range expansion reduces genetic variation at the margins of a species range and should thus compromise the adaptive potential of its marginal populations. remarkably, this prediction has not previously been tested. here, we show that populations of the plant mercurialis annua, which expanded its range into spain and portugal from north africa after the pleistocene glaciation, respond to selection on a key life-history trait less well than populations from the species' historical refugium ... | 2008 | 18599779 |
| aeroallergens in clinical practice of allergy in india- aria asia pacific workshop report. | allergic diseases such as bronchial asthma, allergic rhinitis and atopic dermatitis are dramatically increasing all over the world including developing countries like india. today, more than 30% of the population is known to suffer from one or other allergic ailment. major causative agents implicated are pollen grains, fungal spores, dust mites, insect debris, animal epithelia, etc. several aerobiological studies have been conducted in different parts of the country to ascertain aerial concentra ... | 2008 | 19317344 |
| in vitro antibacterial and antitumor activities of some medicinal plant extracts, growing in turkey. | to investigate antibacterial and antitumor activities of 51 different extracts prepared with 3 types of solvents (water, ethanol and methanol) of 16 different plant species (ajuga reptans (a. reptans) l., phlomis pungens (p. pungens) willd., marrubium astracanicum (m. astracanicum) jacq., nepeta nuda (n. nuda) l., stachys annua (s. annua) l., genista lydia (g. lydia) boiss., nuphar lutea (n. lutea) l., nymphaea alba (n. alba) l., vinca minor (v. minor) l., stellaria media (s. media) l., capsella ... | 2013 | 23790332 |
| anti-cancer, anti-inflammatory and anti-microbial activities of plant extracts used against hematological tumors in traditional medicine of jordan. | mercurialis annua l., bongardia chrysogonum l., and viscum cruciatum sieb have been traditionally used by local herbalists in jordan for the treatment of hematopoietic neoplasms. | 2013 | 23246454 |
| pseudomonas syringae pv. phaseolicola isolated from weeds in bean crop fields. | pseudomonas syringae pv. phaseolicola, the causative agent of halo blight in common bean (phaseolus vulgaris l.), was isolated from weeds associated with bean crops in spain. the bacterium was recovered from fumaria sp, mercurialis annua, solanum nigrum and sonchus oleraceus. ps. s. pv. phaseolicola had previously been isolated from leguminous plants and s. nigrum, but to our knowledge, this is the first time it was recovered from the other three species. the isolates were phenotypically and gen ... | 2016 | 26880144 |
| molecular characterization of a gender-linked dna marker and a related gene in mercurialis annua l. | the dioecious mercurialis annua l. was used as a model plant to study some aspects of the molecular basis of sex determination in plants. we report in this paper the characterization of a previously identified male specific dna marker, opb01-1562, from diploid dioecious m. annua. the marker co-segregated with male sex in the progeny of hormonally feminized males. sequence analysis showed the presence of approximately 0.6 kb retrotransposon-like sequence at its 3' end. homologous sequences were i ... | 2005 | 16049676 |
| chenopodolin: a phytotoxic unrearranged ent-pimaradiene diterpene produced by phoma chenopodicola, a fungal pathogen for chenopodium album biocontrol. | a new phytotoxic unrearranged ent-pimaradiene diterpene, named chenopodolin, was isolated from the liquid culture of phoma chenopodicola, a fungal pathogen proposed for the biological control of chenopodium album, a common worldwide weed of arable crops such as sugar beet and maize. the structure of chenopodolin was established by spectroscopic, x-ray, and chemical methods as (1s,2s,3s,4s,5s,9r,10s,12s,13s)-1,12-acetoxy-2,3-hydroxy-6-oxopimara-7(8),15-dien-18-oic acid 2,18-lactone. at a concentr ... | 2013 | 23786488 |
| agropyrenol and agropyrenal, phytotoxins from ascochyta agropyrina var. nana, a fungal pathogen of elitrigia repens. | a strain of ascochyta agropyrina var. nana, a fungal pathogen of the perennial weed elytrigia repens, produced several toxins in a liquid medium, and its primary toxin, named agropyrenol, was characterized as a substituted salicylaldehyde on the basis of its chemical and spectroscopic properties. its absolute stereochemistry was determined by mosher's method. two other minor metabolites were isolated from the same culture and named agropyrenal and agropyrenone, respectively. they were characteri ... | 2012 | 22525222 |