| [quantitative analysis on sharp-tooth oak stands in qinling mountains]. | the arbor stratum of quercus aliena var. acuteserrata stands included two substratums. phanerophyta synusium was in first position, and hemicryptophyta was inferior to it. the dbh structures of quercus aliena var. acuteserrata and pinus armandii were sinister normal school, which could finish self-regeneration under the natural conditions. the small dbh class individuals of pinus tabulaeformis were dominant, their dbh classes being distributed irregularly and absent very much. the large dbh clas ... | 2003 | 15031900 |
| phenological observations on shrubs to predict weed emergence in turf. | phenology is the study of periodic biological events. if we can find easily recognizable events in common plants that precede or coincide with weed emergences, these plants could be used as indicators. weed seedlings are usually difficult to detect in turf, so the use of phenological indicators may provide an alternative approach to predict the time when a weed appears and consequently guide management decisions. a study was undertaken to determine whether the phenological phases of some plants ... | 2005 | 15846520 |
| host-related variability in arbuscular mycorrhizal fungal structures in roots of hedera rhombea, rubus parvifolius, and rosa multiflora under controlled conditions. | the arbuscular mycorrhizal (am) morphology of three host plant species inoculated with single and mixed fungal culture and the distribution of am fungal species in roots of the hosts treated with a mixed culture of am fungi were determined. the aim was to investigate the effect of host plants and am fungi on am morphology of coexisting plant species. noncolonized rooted cuttings of hedera rhombea (miq) bean, rubus parvifolius l., and rosa multiflora thunb. were inoculated with five fungal specie ... | 2007 | 17111164 |
| complete nucleotide sequences and genome characterization of a novel double-stranded rna virus infecting rosa multiflora. | the three double-stranded (ds) rnas were detected in rosa multiflora plants showing rose spring dwarf (rsd) symptoms. northern blot analysis revealed three dsrnas in preparations of both dsrna and total rna from r. multiflora plants. the complete sequences of the dsrnas (referred to as dsrna 1, dsrna 2 and dsrna 3) were determined based on a combination of shotgun cloning of dsrna cdnas and reverse transcription-polymerase chain reaction (rt-pcr). the largest dsrna (dsrna 1) was 1,762 bp long wi ... | 2008 | 18172568 |
| anti-inflammatory and analgesic effects of the ethanol extract of rosa multiflora thunb. hips. | this study aimed to assess the anti-inflammatory and analgesic effects of fructus rosae multiflorae (frm, hips of rosa multiflora thunb.). frm was extracted with 75% ethanol and the dried extract (frme) was administered intragastrically (i.g.) at 100, 200 and 400mg/kg. the anti-inflammatory effect was evaluated in four experimental animal models and analgesic effect in two animal models. pretreatment with a single dose of frme produced significant dose-dependent anti-inflammatory effects on carr ... | 2008 | 18515025 |
| rdr3, a novel locus conferring black spot disease resistance in tetraploid rose: genetic analysis, lrr profiling, and scar marker development. | black spot disease of rose, incited by the fungus diplocarpon rosae, is found worldwide and is the most important disease of garden roses. a gene-for-gene interaction in this pathosystem is evidenced by the presence of pathogenic races of d. rosae and the previous discovery of a dominant resistance allele at the rdr1 locus in the diploid rosa multiflora. the objective of the present study was to genetically analyze resistances to north american black spot races 3, 8, and 9 previously reported in ... | 2010 | 19847388 |
| molecular markers from a bac contig spanning the rdr1 locus: a tool for marker-assisted selection in roses. | we constructed a bac contig of about 300 kb spanning the rdr1 locus for black spot resistance in rosa multiflora hybrids, using a new bibac library from dna of this species. from this contig, we developed broadly applicable simple sequence repeat (ssr) markers tightly linked to rdr1, which are suitable for genetic analyses and marker-assisted selection in roses. as a source for the high molecular weight dna, we chose the homozygous resistant r. multiflora hybrid 88/124-46. for the assembly of th ... | 2010 | 19911159 |
| antibacterial activity of traditional medicinal plants used by haudenosaunee peoples of new york state. | the evolution and spread of antibiotic resistance, as well as the evolution of new strains of disease causing agents, is of great concern to the global health community. our ability to effectively treat disease is dependent on the development of new pharmaceuticals, and one potential source of novel drugs is traditional medicine. this study explores the antibacterial properties of plants used in haudenosaunee traditional medicine. we tested the hypothesis that extracts from haudenosaunee medicin ... | 2010 | 21054887 |
| topical application of two condensed tannins from the root of rosa multiflora thunberg for the treatment of atopic dermatitis (ad) in nc/nga mice. | recently, the isolation of several condensed tannins from the roots of rosa multiflora thunberg, a traditional herbal therapy in oriental medicine for rheumatoid arthritis and scabies, was described. two of the major condensed tannins - procyanidin b-3 (prob3) and ent-guibourtinidol-(4+¦ôçëôåæôçë6)-catechin (rm-1) - were then applied topically to atopic dermatitis-like skin lesions on nc/nga mice in order to assess their immunomodulatory properties. both prob3 and rm-1 significantly reduced the ... | 2011 | 21717518 |
| Anti-inflammatory activities and mechanisms of action of the petroleum ether fraction of Rosa multiflora Thunb. hips. | The hip of Rosa multiflora Thunb. has been traditionally used as a dietary supplement and a herbal remedy for the treatment of various diseases including cold, flu, inflammation, osteoarthritis, rheumatoid arthritis and chronic pain in China. | 2011 | 22019508 |
| asymmetric effects of native and exotic invasive shrubs on ecology of the west nile virus vector culex pipiens (diptera: culicidae). | exotic invasive plants alter the structure and function of native ecosystems and may influence the distribution and abundance of arthropod disease vectors by modifying habitat quality. this study investigated how invasive plants alter the ecology of culex pipiens, an important vector of west nile virus (wnv) in northeastern and midwestern regions of the united states. | 2015 | 26076589 |
| deep sequencing reveals a novel closterovirus associated with wild rose leaf rosette disease. | a bizarre virus-like symptom of a leaf rosette formed by dense small leaves on branches of wild roses (rosa multiflora thunb.), designated as 'wild rose leaf rosette disease' (wrlrd), was observed in china. to investigate the presumed causal virus, a wild rose sample affected by wrlrd was subjected to deep sequencing of small interfering rnas (sirnas) for a complete survey of the infecting viruses and viroids. the assembly of sirnas led to the reconstruction of the complete genomes of three know ... | 2015 | 25187347 |
| anthelmintic effect of plant extracts containing condensed and hydrolyzable tannins on caenorhabditis elegans, and their antioxidant capacity. | although tannin-rich forages are known to increase protein uptake and to reduce gastrointestinal nematode infections in grazing ruminants, most published research involves forages with condensed tannins (ct), while published literature lacks information on the anthelmintic capacity, nutritional benefits, and antioxidant capacity of alternative forages containing hydrolyzable tannins (ht). we evaluated the anthelmintic activity and the antioxidant capacity of plant extracts containing either most ... | 2013 | 23102761 |
| minimal effects of an invasive flowering shrub on the pollinator community of native forbs. | biological invasions can strongly influence species interactions such as pollination. most of the documented effects of exotic plant species on plant-pollinator interactions have been observational studies using single pairs of native and exotic plants, and have focused on dominant exotic plant species. we know little about how exotic plants alter interactions in entire communities of plants and pollinators, especially at low to medium invader densities. in this study, we began to address these ... | 2014 | 25343718 |
| petroleum ether extractive of the hips of rosa multiflora ameliorates collagen-induced arthritis in rats. | the hip of rosa multiflora thunb. (hrm) has been traditionally used as a dietary supplement and a herbal remedy for the treatment of various diseases, including inflammation, osteoarthritis, rheumatoid arthritis and chronic pain, in china. the current study was to evaluate the therapeutic efficacy of the petroleum ether extractive of hrm (pee) on type ii collagen-induced rheumatoid arthritis (cia) in male wistar rats. in addition, the anti-inflammatory mechanism(s) of pee on type ii cia was expl ... | 2014 | 25256690 |
| differential consumption of four aphid species by four lady beetle species. | the acceptability of four different aphid species macrosiphum albifrons (essig), macrosiphum euphorbiae (thomas), macrosiphum pseudorosae patch, and myzus persicae (sulzer) (hemiptera: aphididae), as prey for four lady beetle species, one native species coccinella trifasciata l, and three non-native coccinella septempunctata l, harmonia axyridis pallas, propylea quatuordecimpunctata l (coleoptera: coccinellidae) were tested in the laboratory. the relative field abundance of adults of the same la ... | 2010 | 20578952 |
| using rna-seq to assemble a rose transcriptome with more than 13,000 full-length expressed genes and to develop the wagrhsnp 68k axiom snp array for rose (rosa l.). | in order to develop a versatile and large snp array for rose, we set out to mine ests from diverse sets of rose germplasm. for this rna-seq libraries containing about 700 million reads were generated from tetraploid cut and garden roses using illumina paired-end sequencing, and from diploid rosa multiflora using 454 sequencing. separate de novo assemblies were performed in order to identify single nucleotide polymorphisms (snps) within and between rose varieties. snps among tetraploid roses were ... | 2015 | 25954285 |
| evolution of the rdr1 tnl-cluster in roses and other rosaceous species. | the resistance of plants to pathogens relies on two lines of defense: a basal defense response and a pathogen-specific system, in which resistance (r) genes induce defense reactions after detection of pathogen-associated molecular patterns (pamps). in the specific system, a so-called arms race has developed in which the emergence of new races of a pathogen leads to the diversification of plant resistance genes to counteract the pathogens' effect. the mechanism of resistance gene diversification ... | 2012 | 22905676 |
| functional trait values, not trait plasticity, drive the invasiveness of rosa sp. in response to light availability. | functional trait plasticity in resource capture traits has been suggested as an underlying mechanism promoting invasive species establishment and spread. earlier studies on this mechanism treat invasiveness as a discrete characteristic (i.e., invasive vs. noninvasive) and do not consider the potential impacts of evolutionary history. in the present study, we used a continuous measure of invasiveness and a phylogenetic framework to quantify the relationship between functional trait expression, pl ... | 2016 | 27965240 |
| leaf-rolling sawflies (hymenoptera, pamphiliidae, pamphiliinae) of tianmushan mountains, zhejiang province, china. | two species of neurotoma, six species of onycholyda, and five species of pamphilius are recorded from tianmushan, zhejiang province, china, and a key is given to these three genera and 13 species. three new species, onycholyda atra shinohara & wei, sp. nov. from zhejiang province, o. fulvicornis shinohara, sp. nov. from shaanxi province and zhejiang province, and pamphilius padus shinohara, sp. nov. from zhejiang province, are described. new distribution records are: onycholyda shaanxiana shinoh ... | 2016 | 27395926 |
| host plants of empria sawflies (hymenoptera, tenthredinidae) in japan include rhododendron (ericaceae). | new host plant records are given for six empria species from japan. they are rosa multiflora [rosaceae] for e. honshuana prous & heidemaa, 2011, rubus sp. [rosaceae] for e. japonica heidemaa & prous, 2011, geum japonicum and g. calthifolium var. nipponicum [rosaceae] for e. loktini ermolenko, 1971, rosa multiflora, potentilla indica and probably rubus parvifolius [rosaceae] for e. quadrimaculata takeuchi, 1952, rhododendron molle subsp. japonicum [ericaceae] for e. takeuchii prous & heidemaa, 20 ... | 2015 | 26623797 |
| effectiveness of eriophyid mites for biological control of weedy plants and challenges for future research. | eriophyid mites have been considered to have a high potential for use as classical biological control agents of weeds. we reviewed known examples of the use of eriophyid mites to control weedy plants to learn how effective they have been. in the past 13 years, since rosenthal's 1996 review, 13 species have undergone some degree of pre-release evaluation (aceria genistae, a. lantanae, aceria sp. [boneseed leaf buckle mite (blbm)], a. salsolae, a. sobhiani, a. solstitialis, a. tamaricis, a. thalgi ... | 2010 | 19760101 |