| protein glycation inhibitory and antioxidative activities of some plant extracts in vitro. | the protein glycation inhibitory activity of aqueous ethanolic extracts from 25 plant tissues was evaluated in vitro using the model system of bovine serum albumin and fructose. the most bioactive plant tissue was allium cepa (skin), followed by illicium religiosum (bark and wood), fagopyrum esculentum (hull), origanum officinalis (leaf), rosmarinus officinalis (leaf), pyrus pyrifolia (bark),acanthopanax senticosus (bark), eugenia caryophllata (leaf), and erigeron annuus (whole). the extracts wi ... | 2003 | 12617589 |
| ergosterol peroxide from flowers of erigeron annuus l. as an anti-atherosclerosis agent. | flowers of erigeron annuus l. were extracted with 80% aqueous meoh, and the concentrated extract was partitioned with etoac, n-buoh, and h2o. repeated silica gel and ods column chromatography of the etoac fraction led to the isolation of a sterol, through activity-guided fractionation, using acat inhibitory activity measurements. from the physico-chemical data, including nmr, ms, and ir, the chemical structure of the compound was determined to be an ergosterol peroxide (1), which has been isolat ... | 2005 | 15974439 |
| gamma-pyranone derivatives and other constituents from erigeron annuus. | two new gamma-pyranone derivatives and a new triterpene, together with eight known compounds, were isolated from the aerial parts of erigeron annuus. their structures were elucidated by spectroscopic methods. besides, the anti-tumor activities of the gamma-pyranone derivatives to human hepatoma (smmc-7721), human embryo liver (l-02) and human leukemia (hl-60) cells were evaluated. | 2006 | 16724550 |
| [photosynthetic characteristics and coenological survey of lactuca serriola in its invaded area]. | lactuca serriola, a national class quarantine object, is a new invasive species in the coastal area of southeast china. the coenological survey showed that because of its big individual, l. serriola could easily form dominant population in its invaded area, and its main accompany species were conyza canadensis, c. bonarinisis, bidentis bipinnata, oenothera laciniata, ipomoea hederacea, setaria viridis, daucus carota, xanthium sibiricum, erigeron annuus, l. indica, humulus scandens, solanum nigru ... | 2006 | 17330472 |
| antiproliferative activity of hungarian asteraceae species against human cancer cell lines. part i. | aqueous and organic extracts of 25 selected species from four tribes of hungarian asteraceae were screened in vitro for antiproliferative activity against hela (cervix epithelial adenocarcinoma), a431 (skin epidermoid carcinoma) and mcf7 (breast epithelial adenocarcinoma) cells, using the mtt assay. twenty five of the 228 tested extracts from different parts of the species of astereae (6), inuleae (3), heliantheae (5) and anthemideae (11) demonstrated a substantial antiproliferative effect (at l ... | 2007 | 17661336 |
| erigeroflavanone, a flavanone derivative from the flowers of erigeron annuus with protein glycation and aldose reductase inhibitory activity. | a novel 2,3-dioxygenated flavanone, erigeroflavanone ( 1), as well as eight known flavonoids and two known gamma-pyranone derivatives, were isolated from an ethyl acetate-soluble extract of the flowers of erigeron annuus. the structure of compound 1 was elucidated by interpretation of spectroscopic data. all of the isolates were subjected to in vitro bioassays to evaluate their inhibitory activity against advanced glycation end products formation and rat lens aldose reductase. | 2008 | 18298080 |
| constituents of the flowers of erigeron annuus with inhibitory activity on the formation of advanced glycation end products (ages) and aldose reductase. | seven phenolic compounds, caffeic acid (1), 4-hydroxybenzoic acid (2), 4-methoxybenzoic acid (3), protocatechuic acid (4), eugenol o-beta-d: -glucopyranoside (5), 3,6-di-o-feruloylsucrose (6), and 3,5-di-o-caffeoylquinic acid methyl ester (7), were isolated from an etoac-soluble partition of the flowers of erigeron annuus. the structures of 1-7 were determined by spectroscopic data interpretation, particularly 1d and 2d nmr studies, and by comparison of their data with those published in the lit ... | 2008 | 18704333 |
| cytoprotection against hydrogen peroxide-induced cell death in cultured mouse mesangial cells by erigeroflavanone, a novel compound from the flowers of erigeron annuus. | hyperglycemia-induced oxidative stress has been suggested as a mechanism underlying diabetic complications. oxidative stress triggers cell death in various cell types, including glomerular mesangial cells which play important roles in diabetic nephropathy. in the present study, we investigated the potential cytoprotective effect of erigeroflavanone, a novel flavanone derivative from the flowers of erigeron annuus, in cultured mouse mesangial cells using hydrogen peroxide (h2o2) as an oxidative s ... | 2009 | 19557877 |
| 3,5-di-o-caffeoyl-epi-quinic acid from the leaves and stems of erigeron annuus inhibits protein glycation, aldose reductase, and cataractogenesis. | in our ongoing project directed toward the discovery of novel treatments for diabetic complications from herbal medicines, sixteen compounds including three caffeoylquinic acids and four flavonoids were isolated from an etoac-soluble extract of the stems and leaves of erigeron annuus. all the isolates were evaluated in vitro for inhibitory activity on the formation of advanced glycation end products (ages) and rat lens aldose reductase (rlar). of these, 3,5-di-o-caffeoyl-epi-quinic acid (3) exhi ... | 2010 | 20118563 |
| antimicrobial fabrication of cotton fabric and leather using green-synthesized nanosilver. | this study aims to investigate the green synthesis of silver nanoparticles (agnps) by erigeron annuus (l.) pers flower extract as reducing and capping agent, and evaluation of their antibacterial activities for the first time. the obtained product was confirmed by uv-vis spectrum, high resolution-transmission electron microscopy, energy-dispersive x-ray spectroscopy, fourier transform infrared spectroscopy, and x-ray diffraction studies. the optimum agnps production was achieved at ph 7, metal s ... | 2014 | 24721085 |
| classification and identification of metal-accumulating plant species by cluster analysis. | identification and classification of metal-accumulating plant species is essential for phytoextraction. cluster analysis is used for classifying individuals based on measured characteristics. in this study, classification of plant species for metal accumulation was conducted using cluster analysis based on a practical survey. forty plant samples belonging to 21 species were collected from an ancient silver-mining site. five groups such as hyperaccumulator, potential hyperaccumulator, accumulator ... | 2014 | 24888623 |
| [species, damage and community structure of weeds in scrophularia ningpoensis fields in nanchuan, chongqing]. | to investigate the damage and community structure of weeds in scrophularia ningpoensis fields in nanchuan, chongqing. | 2015 | 27254914 |
| early-stage changes in natural (13)c and (15)n abundance and nutrient dynamics during different litter decomposition. | decomposition, nutrient, and isotopic (δ(13)c and δ(15)n) dynamics during 1 year were studied for leaf and twig litters of pinus densiflora, castanea crenata, erigeron annuus, and miscanthus sinensis growing on a highly weathered soil with constrained nutrient supply using litterbags in a cool temperate region of south korea. decay constant (k/year) ranged from 0.58 to 1.29/year, and mass loss ranged from 22.36 to 58.43 % among litter types. the results demonstrate that mass loss and nutrient dy ... | 2016 | 26915037 |
| volatiles from intact and lygus-damaged erigeron annuus (l.) pers. are highly attractive to ovipositing lygus and its parasitoid peristenus relictus ruthe. | trap cropping and biological control can provide a sustainable means of controlling insect pests. insects in the genus lygus (hemiptera: miridae) are major pests on cotton and horticultural crops throughout the united states, and pesticide resistance within lygus populations necessitates more sustainable long-term management techniques. here, we explore behavioral responses of lygus bugs (l. rubrosignatus knight) and an introduced parasitoid, peristenus relictus (hymenoptera: braconidae), to a c ... | 2013 | 23982679 |
| roots of erigeron annuus attenuate acute inflammation as mediated with the inhibition of nf- κ b-associated nitric oxide and prostaglandin e2 production. | erigeron annuus is a naturalized plant belonging to compositae (asteraceae) family, which is called the annual fleabane, and commonly found at meadows and roadside. this study investigated the anti-inflammatory effects of the extract of e. annuus roots (eer), as assessed by the paw edema formation and histological analysis in rat, and the productions of nitric oxide (no), prostaglandin e2 (pge2), and pro-inflammatory cytokines in raw264.7 murine macrophages. carrageenan treatment promoted infilt ... | 2013 | 23533473 |
| [new sesquiterpenoids from the rhizomes of petasites japonicus maxim. and the roots of ligularia dentata hara]. | over the past twenty years, our research group has been involved in the phytochemical study of terpenoids from compositae plants. from seven species, namely, erigeron annuus (l.) pers., erigeron philadelphicus l., erigeron sumatrensis retz., ligularia dentata hara, ligularia stenocephala matsum. et koidz., petasites japonicus maxim., and tussilago farfara l., we isolated 83 new compounds. in this review, structural features of 19 eremophilane-type sesquiterpenoids from rhizomes of p. japonicus a ... | 2012 | 22864346 |
| terpenoids and related compounds from plants of the family compositae (asteraceae). | this review will summarize the authors' studies on the structures of terpenoids and related compounds from plants of the family compositae (asteraceae). eighty three new compounds have been obtained and characterized from seven species of the plants, namely, erigeron annuus (l.) pers., erigeron philadelphicus l., erigeron sumatrensis retz, ligularia dentata hara, ligularia stenocephala matsum. et koidz., petasites japonicus maxim. and tussilago farfara l. | 2012 | 22574461 |
| effect of plant species on the function and structure of the bacterial community in the rhizosphere of lead-zinc mine tailings in zhejiang, china. | to uncover the role played by pioneer plants in the natural succession of vegetation on heavy-metal mine tailings, it is important to explore the sensitive indicator of rhizosphere microbial community performance. we investigated the structure and function of rhizosphere bacterial communities of five pioneer plants growing on lead-zinc mine tailings in zhejiang, china. compared with the control, all five pioneer plants differentially affected the structure and function of rhizosphere bacterial c ... | 2011 | 21770815 |
| neuroprotective and anti-oxidant effects of caffeic acid isolated from erigeron annuus leaf. | since oxidative stress has been implicated in a neurodegenerative disease such as alzheimer's disease (ad), natural antioxidants are promising candidates of chemopreventive agents. this study examines antioxidant and neuronal cell protective effects of various fractions of the methanolic extract of erigeron annuus leaf and identifies active compounds of the extract. | 2011 | 21702896 |
| in vitro antiproliferative and antifungal activity of essential oils from erigeron acris l. and erigeron annuus (l.) pers. | antiproliferative and antifungal activities of essential oils from erigeron acris root and herb and from erigeron annuus herb were investigated. the cell viability assay was performed in cultured fibroblasts, cancer cell lines (mcf-7 and mda-mba-231), and endometrial adenocarcinoma (ishikawa) cells as well as colon adenocarcinoma (dld-1) cells using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (mtt). the essential oil from e. acris root showed the highest antiproliferative activi ... | 2011 | 21319704 |
| chemical composition of the essential oils from the roots of erigeron acris l. and erigeron annuus (l.) pers. | the chemical compositions of essential oils from the roots of erigeron acris and erigeron annuus were studied. the essential oils were obtained by hydrodistillation in 1.0% and 0.05% yield, respectively, and analyzed by gc, gc-ms. fifty four and forty seven constituents were identified. predominant constituents of both oils were poly-acetylene esters: (z,z)-matricaria ester (49.4% and 45.9%, respectively) and (z)-lachnophyllum ester (37.2% and 27.5%, respectively), that were accompanied by their ... | 2009 | 19633616 |
| mendelian segregation for two-factor apomixis in erigeron annuus (asteraceae). | the inheritance of asexual seed development (apomixis) in erigeron annuus (asteraceae) was evaluated in a triploid (2n=3x=27) population resulting from a cross between an apomictic tetraploid (2n=4x=36) pollen parent and a sexual diploid (2n=2x=18) seed parent. diplospory (unreduced female gametophyte formation) and autonomous development (embryo and endosperm together) segregated independently in the population yielding four distinct phenotype classes: (1) apomictic plants combining diplospory ... | 2007 | 17021613 |
| inheritance of apomeiosis (diplospory) in fleabanes (erigeron, asteraceae). | unreduced egg formation (apomeiosis) in flowering plants is rare except when it is coupled with parthenogenesis to yield gametophytic apomixis via apospory or diplospory. results from genetic mapping studies in diverse apomictic taxa suggest that apomeiosis and parthenogenesis are genetically linked, a finding that is compatible with the conventional rationale that apomeiosis is unlikely to evolve independently because of deleterious fitness consequences. an erigeron annuus (apomictic) x e. stri ... | 2005 | 15536486 |
| two new cyclopentenone derivatives and a new cyclooctadienone derivative from erigeron annuus (l.) pers., erigeron philadelphicus l., and erigeron sumatrensis retz. | two new cyclopentenone derivatives, erigerenones a (1) and b (2), and a new cyclooctadienone derivative, erigerenone c (3), were isolated from the aerial parts of erigeron philadelphicus l. compound 2 was also isolated from the aerial parts of erigeron annuus (l.) pers. and erigeron sumatrensis retz. the structures of 1-3 were elucidated on the basis of their spectral data. | 2003 | 12843608 |
| five new sesquiterpenoids and a new diterpenoid from erigeron annuus (l.) pers., erigeron philadelphicus l. and erigeron sumatrensis retz. | the aerial parts of erigeron annuus (l.) pers., e. philadelphicus l. and e. sumatrensis retz. (compositae) have been investigated chemically. a new sesquiterpenoid, 6beta,14-epoxyeudesm-4(15)-en-1beta-ol (1), and a new diterpenoid, philadelphinone (6), have been isolated from e. philadelphicus. four new sesquiterpenoids, (7r*)-opposit-4(15)-ene-1beta,7-diol (2), 11-methoxyopposit-4(15)-en-1beta-ol (3), 15-methoxyisodauc-3-ene-1beta,5alpha-diol (4) and 10alpha-hydroxycadin-4-en-15-al (5), have be ... | 2003 | 12736454 |
| germination inhibitory constituents from erigeron annuus. | (5-butyl-3-oxo-2,3-dihydrofuran-2-yl)-acetic acid was isolated from the flowers of erigeron annuus as one of four germination inhibitory constituents. its structure was determined by analysis of ms and nmr spectroscopic data. three known compounds, 3-hydroxy-pyran-4-one, 4-hydroxycinnamic acid, and 3,4-dihydroxycinnamic acid methyl ester were also identified as active constituents. these compounds showed 50% inhibitory effects (ic(50)) on the germination of lettuce seed at concentrations of 2.13 ... | 2002 | 12169312 |
| two independent loci control agamospermy (apomixis) in the triploid flowering plant erigeron annuus. | asexual seed production (agamospermy) via gametophytic apomixis in flowering plants typically involves the formation of an unreduced megagametophyte (via apospory or diplospory) and the parthenogenetic development of the unreduced egg cell into an embryo. agamospermy is almost exclusively restricted to polyploids. in this study, the genetic basis of agamospermy was investigated in a segregating population of 130 f(1)'s from a cross between triploid (2n = 27) agamospermous erigeron annuus and sex ... | 2000 | 10790411 |
| diplospory and parthenogenesis in sexual x agamospermous (apomictic ) erigeron (asteraceae) hybrids. | segregation for asexual seed production was evaluated for 130 experimental f1 hybrids resulting from a cross between diploid (2n=18) sexual erigeron strigosus and triploid (2n=27) agamospermous erigeron annuus. paternity of hybrids was documented using 13 rapd markers. the distribution of f1 chromosome numbers is bimodal, centering on diploid and triploid ploidal levels but with underrepresentation of diploids. diplosporous versus meiotic megagametophyte development was ascertained microscopical ... | 2000 | 10648190 |
| field tests of density-and frequency-dependent selection in erigeron annuus (compositae). | selection may maintain genetic diversity in natural populations if the physical or biotic environment is variable over space and-or time. because density and genotype frequencies can be heterogeneous, and because genotypes may differ in competitive ability, both density-and frequency-dependent selection have been considered to be potentially important evolutionary processes. to address the possibility that intraspecific interactions among plants are a source of fitness variation in erigeron annu ... | 1998 | 21684937 |
| pyromeconic acid and its glucosidic derivatives from leaves of erigeron annuus, and the siderophile activity of pyromeconic acid. | 3'-o-caffeylerigeroside (pyromeconic acid 3-o-beta-d-glucoside 3'-o-caffeyl ester) was obtained from the leaves of erigeron annuus as a new pyromeconic acid derivative, and its structure was elucidated. together with the gamma-pyrone derivative, pyromeconic acid (3-hydroxy-4h-pyran-4-one) and its beta-glucoside (erigeroside) were also isolated from the aerial parts of e. annuus. the siderophile activity of pyromeconic acid was also studied. | 1995 | 7787303 |
| interactions after death: plant litter controls priority effects in a successional plant community. | we performed a field experiment to test whether the presence of litter produced by the dominant species in the first successional year affects the plant community structure in the following year. we removed the litter of setaria faberii (the first-year dominant) in midfall, early spring, mid-spring, or late spring. both the fall and early spring removal increased the biomass of erigeron annuus, which became dominant, and reduced the biomass of s. faberii. in the fall-removal treatment more plant ... | 1993 | 28312952 |
| pollination niche separation in a winter annual community. | differences in major selective forces important in early and late successional communities should influence niche breadth and degree of overlap. early successional species may not experience consistent, strong selection against competition and can be expected to have broader niches with more overlap than later successional species. this paper presents data from 2 early successional winter annuals that show clear niche separation under conditions in which coevolution is unlikely. lactuca scariola ... | 1978 | 28309727 |