| hypersensitivity to pollen allergens on the adriatic coast. | in central south croatia, i.e., the adriatic coast with the city of split at the center, year-long pollen concentrations in the air were determined for typical local plants, and the area's plant pollination calendar was established. high concentrations of parietaria officinalis pollen dominated during the year (up to 20% from april to june). pollens of pistacia lentiscus, olea europaea, pinus halepensis, juniperus oxycedrus, mimosa and cistus monspeliensis were found in lower concentrations and ... | 1994 | 7921334 |
| [seasonal changes of nitrogen and phosphorus and their translocation from leaves of ten tree species in central japan]. | the leaves of evergreen broadleaved quercus cuspidata, ilex pedunculosa, ilex rotunda, machilus thunbergii, pittosporum tobira and deciduous broadleaved quercus serrata, quercus variabilis, celtis sinensis, ginkgo biloba, and evodiopanax innovans were collected from the time of full leaf expansion to the end of growing season to describe the seasonal contents of n and p patterns in leaves of these species. the n and p contents in new and old leaves of evergreen quercus cuspidata and ilex rotunda ... | 2003 | 12973987 |
| hypersensitivity to pollen allergens on the adriatic coast. | this paper describes a study of air concentrations of pollens and a calendar of pollination around the town of split on the croatian adriatic in 1994. high pollen concentrations of parietaria officinalis dominated during the year (up to 20% from april to june) followed by the pollens of pistacia lentiscus, olea europaea, pinus halepensis, juniperus oxycedrus, acacia baileyana, artemisia vulgaris, ambrosia elatior and cistus monspeliensis. in 1994-95, skin prick tests using commercially available ... | 2004 | 15285462 |
| four carotenoids from pittosporum tobira protect primary cultured rat cortical cells from glutamate-induced toxicity. | we observed that an aqueous extract of this medicinal plant exhibited significant neuroprotection against glutamate-induced toxicity in primary cultured rat cortical cells from methanol extracts of the seeds of p. tobira. to further clarify the underlying neuroprotective mechanism(s) of this observed effect, we isolated and identified various active fractions and components. by using such fractionation procedures, four known carotenoids compounds--tobiraxanthins a1, a2, a3, and b--were isolated ... | 2010 | 20041415 |
| biomonitoring of chemical elements in an urban environment using arboreal and bush plant species. | the aim of this work was to investigate the possibility of using several bush and arboreal plant species, usually present as ornamental plants in street and parks, as environmental indicators of pollution. this is a research paper that evaluates the real possibility of using a fast and low-cost procedure to evaluate the pollution degree through data obtained from plant species growing within an urban environment. | 2011 | 20559747 |
| two new triterpenoid estersaponins and biological activities of pittosporum tobira 'variegata' (thunb.) w. t. aiton leaves. | two new triterpenoid estersaponins (1, 2) were isolated from the leaves of pittosporum tobira 'variegata' (thunb.) w. t. aiton, along with one known saponin (3) and one known flavonoid glycoside (4). their structures were established by different spectroscopic methods including 1d and 2d nmr, uv, as well as esi-ms analysis. the investigated 80% aqueous methanol extract showed significant dose dependent inhibition of acetic acid induced abdominal writhing in mice. the n-butanol fraction exerted m ... | 2015 | 26363280 |
| fungi associated with scolytogenes birosimensis (coleoptera: curculionidae) infesting pittosporum tobira. | the bark beetle scolytogenes birosimensis niijima is suspected to be involved in the decline of pittosporum tobira (thunb. ex murray) aiton in the coastal areas of japan. we isolated fungi from adult s. birosimensis in nine different localities in japan to assess their potential association and predict their contribution to the success of the beetle. results from morphological identification of associated fungi showed that the beetle was associated with fusarium solani and candida spp. furthermo ... | 2012 | 22506997 |
| antimicrobial activities against periodontopathic bacteria of pittosporum tobira and its active compound. | the study of medicinal plants for treatment of periodontitis is of great value to establish their efficacy as sources of new antimicrobial drugs. five hundred and fifty eight korean local plant extracts were screened for antibacterial activity against representative periodontopathic bacteria such as porphyromonas gingivalis, prevotella intermedia, and fusobacterium nucleatum. among the various medicinal plants, the alcohol extract of pittosporum tobira, which significantly exhibited antibacteria ... | 2014 | 24662076 |
| larvicidal effects of the major essential oil of pittosporum tobira against aedes aegypti (l.). | essential oil obtained from the leaves of pittosporum tobira was extracted and its chemical composition and larvicidal effects were studied. analyses were conducted by gas chromatography and mass spectroscopy (gc-ms) to determine the primary constituents of the essential oil of p. tobira. the yield of p. tobira essential oil (pteo) was 0.1%, and gc-ms analysis identified its major constituents as undecane (31.11%), 4-methyl-1,3-pentadiene (11.34%), (1,3-dimethyl-2-butenyl)benzene (5.45%), and l- ... | 2010 | 19874194 |
| studies on the molluscicidal activity of agave angustifolia and pittosporum tobira on schistosomiasis transmitting snails. | in the search for new molluscicidal plants for controlling the snail vectors of schistosomiasis, laboratory evaluation was made to assess the molluscicidal activity of agave angustifolia and pittosporum tobira plants against biomphalaria alexandrina snails. results indicated that both plants have promising molluscicidal activity as the lc90 of the dry powder of both plants was 120 ppm. both plants showed marked cercaricidal and miracidicidal potencies against s. mansoni larvae. the lc90 of both ... | 2015 | 26012228 |
| new vegetation indices for remote measurement of chlorophylls based on leaf directional reflectance spectra. | directional reflectance (r) spectra from 380 to 780 nm for nadir illuminated leaves of four different plants (croton, codiaeum variegatum; spotted eleagnus, eleagnus pungens maculata; japanese pittosporum, pittosporum tobira and benjamin fig, ficus benjamina starlight) were acquired at a viewing angle of 30 degrees from the nadir direction. chlorophyll-a and -b content of leaves covered a range of 1-60 and 0.5-21 microg/cm(2), respectively. in contrast with previous results from hemispherical re ... | 2001 | 11485848 |
| flammability of some ornamental species in wildland-urban interfaces in southeastern france: laboratory assessment at particle level. | assessment of the flammability of ornamental vegetation (particularly hedges) planted around houses is necessary in light of the increasing urbanization of the wildland-urban interfaces (wuis) and the high fire occurrence in such areas. the structure and flammability of seven of the species most frequently planted as hedges in provence (southeastern france) were studied at particle level. spatial repartition of the different types of fuel particles within plants was assessed by means of the cube ... | 2013 | 23765042 |
| light brown apple moth in california: a diversity of host plants and indigenous parasitoids. | the light brown apple moth, epiphyas postvittana (walker), an australia native tortricid, was found in california in 2006. a field survey of host plants used by e. postvittana was conducted in an urban region of the san francisco bay area. an inspection of 152 plant species (66 families), within a 23-ha residential community, found e. postvittana on 75 species (36 families). most (69 species) host plants were not australian natives, but had a wide geographic origin; 34 species were new host reco ... | 2012 | 22525062 |
| cadmium stabilization with nursery stocks through transplantation: a new approach to phytoremediation. | disposal of heavy metal contaminated biomass after phytoremediation is still unfeasible. this paper presents a viable phyto-extraction approach in which metals in contaminated soils are stabilized by nursery stocks before transplantation for greening. in this respect, two pot-experiments are reported comparing seven nursery stocks species exposed to different cd levels. the first experiment revealed that cd was mainly stabilized in the roots of all species studied. greater amounts of cd were acc ... | 2012 | 22138169 |
| polycyclic aromatic hydrocarbons in the leaves of twelve plant species along an urbanization gradient in shanghai, china. | plants, particularly their leaves, play an important role in filtering both gas-phase and particle-phase polycyclic aromatic hydrocarbons (pahs). however, many studies have focused on the accumulation and adsorption functions of plant leaves, possibly underestimating the effects that plants have on air quality. therefore, eight tree species from different locations in shanghai were selected to assess pah filtering (via adsorption and capture) using washed and unwashed plant leaves. the differenc ... | 2017 | 28233205 |