| the isolation and antioxidative effects of vitexin from acer palmatum. | free radicals and reactive oxygen species (ros) caused by uv exposure or other environmental factors are critical players in cellular damage and aging. in order to develop a new anti-photoaging agent, this work focused on the antioxidant effects of the extract of tinged autumnal leaves of acer palmatum. one compound was isolated from an ethyl acetate soluble fraction of the a. palmatum extract using silica gel column chromatography. the chemical structure was identified as apigenin-8-c-beta-d-gl ... | 2005 | 15789751 |
| potential tree species for use in the restoration of unsanitary landfills. | given that they represent the most economical option for disposing of refuse, waste landfills are widespread in urban areas. however, landfills generate air and water pollution and require restoration for landscape development. a number of unsanitary waste landfills have caused severe environmental problems in developing countries. this study aimed to investigate the colonization status of different tree species on waste landfills to assess their potential for restoring unsanitary landfills in s ... | 2005 | 16132448 |
| spatial and temporal changes in leaf coloring date of acer palmatum and ginkgo biloba in response to temperature increases in south korea. | understanding shifts in autumn phenology associated with climate changes is critical for preserving forest ecosystems. this study examines the changes in the leaf coloring date (lcd) of two temperate deciduous tree species, acer palmatum (acer) and ginkgo biloba (ginkgo), in response to surface air temperature (ts) changes at 54 stations of south korea for the period 1989-2007. the variations of acer and ginkgo in south korea are very similar: they show the same mean lcd of 295th day of the year ... | 2017 | 28346534 |
| gene expressing and srna sequencing show that gene differentiation associates with a yellow acer palmatum mutant leaf in different light conditions. | acer palmatum thunb., like other maples, is a widely ornamental-use small woody tree for leaf shapes and colors. interestingly, we found a yellow-leaves mutant "jingling huangfeng" turned to green when grown in shade or low-density light condition. in order to study the potential mechanism, we performed high-throughput sequencing and obtained 1,082 degs in leaves grown in different light conditions that result in a. palmatum significant morphological and physiological changes. a total of 989 deg ... | 2015 | 26788511 |
| de novo transcriptome sequencing of acer palmatum and comprehensive analysis of differentially expressed genes under salt stress in two contrasting genotypes. | maple (acer palmatum) is an important species for landscape planting worldwide. salt stress affects the normal growth of the maple leaf directly, leading to loss of esthetic value. however, the limited availability of maple genomic information has hindered research on the mechanisms underlying this tolerance. in this study, we performed comprehensive analyses of the salt tolerance in two genotypes of maple using rna-seq. approximately 146.4 million paired-end reads, representing 181,769 unigenes ... | 2016 | 26475609 |
| early wound reactions of japanese maple during winter dormancy: the effect of two contrasting temperature regimes. | during winter dormancy, temperate trees are capable of only a restricted response to wounding. depending on the ambient temperature during winter dormancy, wounded trees may start compartmentalization, e.g. by producing inhibitory compounds, but it is thought that processes involving cell proliferation, such as the formation of callus and wound xylem, are delayed until the next growing season. we investigated the effect of two contrasting temperature regimes on early reactions of acer palmatum t ... | 2014 | 25275087 |
| phytophthora terminalis sp. nov. and phytophthora occultans sp. nov., two invasive pathogens of ornamental plants in europe. | in the past decade several phytophthora strains were isolated from diseased pachysandra terminalis plants suffering stem base and root rot, originating from the netherlands and belgium. all isolates were homothallic and had a felt-like colony pattern, produced semi-papillate sporangia, globose oogonia and had a maximum growth at ~ 27 c. several additional phytophthora strains were isolated from diseased buxus sempervirens plants, originating from the netherlands and belgium, which had sustained ... | 2015 | 25261495 |
| japanese maple (acer palmatum var. matsumurae, aceraceae) recruitment patterns: seeds, seedlings, and saplings in relation to conspecific adult neighbors. | we analyzed the spatial patterns among seeds, seedlings, saplings, and conspecific adult trees of the cool-temperate tree species acer palmatum var. matsumurae in a conifer-hardwood mixed forest in northern japan, using two models that consider the influence of each adult within the neighborhood of the offspring. the results showed that recruitment patterns of each stage could be characterized and that significant shifts occur between successive stages. sound seeds were more widely dispersed tha ... | 1997 | 21708686 |
| dwarf bamboos affect the regeneration of zoochorous trees by providing habitats to acorn-feeding rodents. | the effects of dwarf bamboos (sasa spp.) on the regeneration of trees in a natural hardwood forest were studied by analysing the spatial dispersion of seedlings and saplings of anemochores (acer palmatum var. matsumurae, fraxinus lanuginosa, and carpinus laxiflora) and zoochores (quercus mongolica var. grosseserrata and q. serrata). relative photosynthetic photon flux density at 10 cm above ground was significantly correlated with the coverage of dwarf bamboos (r=0.661, p<0.001). seedlings were ... | 1993 | 28313678 |
| chemical constituents in aceraceous plants. i. flavonoid constituents in the leaves of acer palmatum thunberg. | | 1963 | 14054426 |