| antifungal anthracycline antibiotics, spartanamicins a and b from micromonospora spp. | spartanamicins a and b, two antifungal antibiotics, were produced by a culture of micromonospora spp. strain no. msu-43097 (atcc 53803), isolated from a potted soil containing asparagus (asparagus officinalis l.) plants. the antibiotics were isolated from the mycelial cake using organic solvents. the structures of spartanamicins a and b were determined by spectral and chemical means. spartanamicin b is more active as an antifungal compound than it's analogue, a. the minimum inhibitory concentrat ... | 1992 | 1468980 |
| characterisation of a wound-induced transcript from the monocot asparagus that shares similarity with a class of intracellular pathogenesis-related (pr) proteins. | we report the isolation and characterisation of a wound-induced cdna designated aopr1 from a suspension of mesophyll cells that had been mechanically isolated from cladodes of light-grown asparagus officinalis seedlings by grinding in a mortar and pestle. the transcript abundance is up-regulated following cell separation and in chopped mesocotyl tissue from dark-grown seedlings. the expression of aopr1 was shown by northern analysis to be located around the site of damage. sequence analysis reve ... | 1992 | 1627770 |
| structural features of the cell-wall polysaccharides of asparagus officinalis seeds. | the fine structure of a beta-)1----4)-linked glucomannan from asparagus officinalis has been determined by n.m.r. analysis of the oligosaccharides obtained by acidic and enzymic hydrolyses. cleavage of the glucomannan with beta-d-mannase from aspergillus niger and purification by h.p.l.c. gave oligosaccharide fractions that contained man (mannose), glcman (beta-glucopyranosylmannose), man2, glc2man, and glc3man as the major components. simulated digestion of a polymer composed of randomly distri ... | 1991 | 1878881 |
| purification and properties of new ribosome-inactivating proteins with rna n-glycosidase activity. | ribosome-inactivating proteins (rips) similar to those already known (stirpe & barbieri (1986) febs lett. 195, 1-8) were purified from the seeds of asparagus officinalis (two proteins, asparin 1 and 2), of citrullus colocynthis (two proteins, colocin 1 and 2), of lychnis chalcedonica (lychnin) and of manihot palmata (mapalmin), from the roots of phytolacca americana (pokeweed antiviral protein from roots, pap-r) and from the leaves of bryonia dioica (bryodin-l). the two latter proteins can be co ... | 1990 | 2248976 |
| ribosome-inactivating proteins from the seeds of saponaria officinalis l. (soapwort), of agrostemma githago l. (corn cockle) and of asparagus officinalis l. (asparagus), and from the latex of hura crepitans l. (sandbox tree). | ribosome-inactivating proteins, similar to those already known [barbieri & stirpe (1982) cancer surveys 1, 489-520] were purified from the seeds of saponaria officinalis (two proteins), of agrostemma githago (three proteins), and of asparagus officinalis (three proteins), and from the latex of hura crepitans (one protein). the yield ranged from 8 to 400 mg/100 g of starting material. all proteins have an mr of approx. 30000 and an alkaline isoelectric point. their sugar content varies from 0 (pr ... | 1983 | 6667259 |
| isolation and characterization of a cdna clone for a harvest-induced asparagine synthetase from asparagus officinalis l. | a full-length cdna clone (ptip27) encoding asparagine synthetase (as; ec 6.3.5.4) was isolated from a cdna library prepared from the tip section (apex to 30 mm) of asparagus officinalis l. spears. the cdna clone encodes an mrna of 1978 bp, giving a derived protein of 66.5 kd molecular mass. the derived amino acid sequence is 81% homologous to as from pisum sativum. only low levels of transcript for as could be detected in growing spears, roots, or ferns. however, as mrna levels began to increase ... | 1993 | 7904077 |
| the developmental expression of the asparagus intracellular pr protein (aopr1) gene correlates with sites of phenylpropanoid biosynthesis. | previous reports have described the induction, by either wounding or attempted pathogen invasion, of an asparagus officinalis intracellular pathogenesis-related (aopr1) promoter-gus gene fusion in transgenic tobacco. here we describe the unexpected developmental expression pattern of the aopr1-gus gene which correlates well, temporally and spatially, with the developmental expression observed for gus fusions with promoters derived from genes coding for enzymes in the 'core phenylpropanoid pathwa ... | 1994 | 7920702 |
| isolation of an asparagus intracellular pr gene (aopr1) wound-responsive promoter by the inverse polymerase chain reaction and its characterization in transgenic tobacco. | the asparagus officinalis intracellular pr1 (aopr1) gene is expressed in response to wounding and pathogen attack. we utilized the inverse polymerase chain reaction (ipcr) to isolate the cis-acting regulatory sequences of the aopr1 gene following unsuccessful attempts to identify hybridizing clones in genomic libraries. sequence analysis of two ipcr products revealed that a 347 bp intron was present in the aopr1 gene and that it was probable that the aopr1 regulatory sequence had been amplified. ... | 1993 | 8220442 |
| 1,2,3-trithiane-5-carboxylic acid, a first contact allergen from asparagus officinalis (liliaceae). | although hundreds of cases of allergic contact dermatitis caused by asparagus have been described in the literature, the responsible allergens are still unknown. | 1996 | 8796741 |
| steroidal saponins from asparagus officinalis and their cytotoxic activity. | two oligofurostanosides were isolated from the seeds of asparagus officinalis l and their structures characterized as 3-o-[alpha-l-rhamnopyranosyl-(1-->2)-(alpha-l-rhamnopyranosyl- (1-->4))-beta-d-glucopyranosyl]-26-o-[beta-d-glucopyranosyl]-(25r) -22 alpha-methoxyfurost-5-ene-3 beta,26-diol(methyl protodioscin) and its corresponding 22 alpha-hydroxy analogue (protodioscin). the structural identification was performed using detailed analysis of 1h- and 13c-nmr spectra including two-dimensional n ... | 1997 | 9225609 |
| genomic characterization of members of the bet v 1 family: genes coding for allergens and pathogenesis-related proteins share intron positions. | bet v 1, the major birch pollen allergen, is a member of a multigene family; a number of isoforms and homologous proteins from closely related species (alder, hazel and hornbeam) has been isolated and their cdnas cloned and characterized. genomic clones coding for bet v 1 and homologues from apple and hazel were isolated and sequenced. some of these clones contained intervening sequences. the exon-intron formation is highly conserved throughout this family of pathogenesis-related proteins in dic ... | 1997 | 9332353 |
| a cysteine protease from young stems of asparagus: isolation, properties, and substrate specificity. | a protease was purified from the growing point of asparagus, asparagus officinalis, using a cystatin-sepharose column. the asparagus protease is the first protease isolated from the growing point of a plant tissue and from liliaceae. its molecular mass was estimated to be 28 kda by sds-page. the optimum ph of the enzyme was 7 at 30 degrees c using casein as a substrate. the enzyme was strongly inhibited by monoiodoacetic acid, but not by diisopropylfluorophosphate, suggesting that it is a cystei ... | 1998 | 9501515 |
| 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 |
| cloning of two glutamate dehydrogenase cdnas from asparagus officinalis: sequence analysis and evolutionary implications. | two different amplification products, termed c1 and c2, showing a high similarity to glutamate dehydrogenase sequences from plants, were obtained from asparagus officinalis using two degenerated primers and rt-pcr (reverse transcriptase polymerase chain reaction). the genes corresponding to these cdna clones were designated aspgdha and aspgdhb. screening of a cdna library resulted in the isolation of cdna clones for aspgdhb only. analysis of the deduced amino acid (aa) sequence from the full-len ... | 2000 | 10791819 |
| structure of fructans from excised leaves of new zealand flax. | the accumulation of total water-soluble carbohydrate, and specifically sucrose and fructan, by excised leaves of phormium tenax and p. cookianum (family phormiaceae j. g. agardh, order asparagales) was investigated. total water-soluble carbohydrate content of excised leaves of p. tenax and p. cookianum increased during 48 h of continuous illumination at an average rate of 1.3 and 0.9 mg g(-1) fresh weight leaf per hour, respectively. the sucrose content of excised leaves increased throughout the ... | 2001 | 11397431 |
| biological potential of extraterrestrial materials. 2. microbial and plant responses to nutrients in the murchison carbonaceous meteorite. | meteoritic materials are investigated as potential early planetary nutrients. aqueous extracts of the murchison c2 carbonaceous meteorite are utilized as a sole carbon source by microorganisms, as demonstrated by the genetically modified pseudomonas fluorescence equipped with the lux gene. nutrient effects are observed also with the soil microorganisms nocardia asteroides and arthrobacter pascens that reach populations up to 5 x 10(7) cfu/ml in meteorite extracts, similar to populations in terre ... | 1997 | 11541241 |
| characterization of the interaction between the dark septate fungus phialocephala fortinii and asparagus officinalis roots. | phialocephala fortinii wang & wilcox is a member of root-inhabiting fungi known collectively as dark septate endophytes (dse). although very common and distributed worldwide, few studies have documented their interaction with roots on a structural basis. the objective of this study was to determine the early colonization events and formation of microsclerotia of p. fortinii in roots of asparagus officinalis l., a species known to have dse. a loose network of hyphae accumulated at the root surfac ... | 2001 | 11575501 |
| diversity of arabidopsis genes encoding precursors for phytosulfokine, a peptide growth factor. | phytosulfokine-alpha (psk-alpha), a unique plant peptide growth factor, was originally isolated from conditioned medium of asparagus (asparagus officinalis) mesophyll cell cultures. psk-alpha has several biological activities including promoting plant cell proliferation. four genes that encode precursors of psk-alpha have been identified from arabidopsis. analysis of cdnas for two of these, atpsk2 and atpsk3, shows that both of these genes consist of two exons and one intron. the predicted precu ... | 2001 | 11706167 |
| isolation of a novel deoxyribonuclease with antifungal activity from asparagus officinalis seeds. | a deoxyribonuclease distinct from the previously isolated asparagus ribosome-inactivating proteins, possessing a molecular weight of 30 kda and requiring a ph of 7.5 for optimum hydrolytic activity toward herring sperm dna, was isolated from asparagus officinalis seeds. the isolation procedure involved extraction with saline, (nh(4))(2)so(4) precipitation, ion-exchange chromatography on deae-cellulose, affinity chromatography on affi-gel blue gel, ion-exchange chromatography on cm-sepharose, and ... | 2001 | 11708787 |
| two novel oligosaccharides formed by 1f-fructosyltransferase purified from roots of asparagus (asparagus officinalis l.). | two novel oligosaccharides, tetra-and penta-saccharides were synthesized by fructosyl transfer from 1-kestose to 4g-beta-d-galactopyranosylsucrose with a purified 1f-fructosyltransferase of asparagus roots and identified as 1f-beta-d-fructofuranosyl-4g-beta-d-galactopyranosylsucrose, o-beta-d-fructofuranosyl-(2-->1)-beta-d-fructofuranosyl-o-[beta-d-galactopyranosyl-(1-->4)]-alpha-d-glucopyranoside and 1f(1-beta-d-fructofuranosyl)2-4g-beta-d-galactopyranosylsucrose, [o-beta-d-fructofuranosyl-(2-- ... | 2002 | 12162573 |
| characterization of pin m iii cdna in western white pine. | maximum accumulation of pin m iii protein in western white pine (pinus monticola dougl. ex d. don) needles occurred during the winter months. to characterize pin m iii, an expression cdna library from poly(a)+ mrna of needles was immunoscreened and the full length cdna was cloned. an open reading frame of 486 bases encodes a protein of 161 amino acid residues with a molecular mass of 18 kd and a predicted isoelectric point of 5.5. the deduced amino acid sequence had some similarities (37%) with ... | 2000 | 12651516 |
| three differentially expressed basic peroxidases from wound-lignifying asparagus officinalis. | the activity of ionically bound peroxidases from an asparagus spear increased from 5-24 h post-harvest. isoelectric focusing showed that the post-harvest increase of the total peroxidase activity was due to the increase of several distinct isoperoxidases. concomitantly, a decrease in the activity of two anionic peroxidases was observed. peroxidases with pi 5.9, 6.4 and 9.2 were detected only at 24 h post-harvest, whereas four peroxidases, with pi 8.7, 8.1, 7.4, and 6.7, detected throughout the t ... | 2003 | 12947050 |
| molecular cloning of low-temperature-inducible ribosomal proteins from soybean. | three ribosomal protein genes induced by low-temperature treatment were isolated from soybean. gmrps13 (742 bp) encodes a 17.1 kda protein which has 95% identity with the 40s ribosomal protein s13 of panax ginseng (ab043974). gmrps6 (925 bp) encodes a 28.1 kda protein which has 94% identity with the 40s ribosomal protein s6 of asparagus officinalis (aj277533). gmrpl37 (494 bp) encodes a 10.7 kda protein which has 85% identity with the 60s ribosomal protein l37 of arabidopsis thaliana (af370216). ... | 2004 | 15020631 |
| a pcr-denaturing gradient gel electrophoresis approach to assess fusarium diversity in asparagus. | in north america, asparagus (asparagus officinalis) production suffers from a crown and root rot disease mainly caused by fusarium oxysporum f. sp. asparagi and f. proliferatum. many other fusarium species are also found in asparagus fields, whereas accurate detection and identification of these organisms, especially when processing numerous samples, is usually difficult and time consuming. in this study, a pcr-denaturing gradient gel electrophoresis (dgge) method was developed to assess fusariu ... | 2005 | 15590089 |
| effects of the fermentation product of herbs by lactic acid bacteria against phytopathogenic filamentous fungi and on the growth of host plants. | the fermentation product of herbs by lactic acid bacteria (fhl) was assayed for antifungal activities against rosellinia necatrix, helicobasidium mompa, fusarium oxysporum, pythium graminicola and pyricularia oryzae. fhl completely inhibited the growth of r. necatrix, h. mompa, p. graminicola and p. oryzae, and reduced the growth of f. oxysporum by 35%. when the seeds of medicago sativa l. (alfalfa), asparagus officinalis l. (asparagus), brassica campestris l. (komatsuna), oryza sativa l. (rice) ... | 2004 | 16233688 |
| a synopsis of the occurrence and pathogenicity of phytophthora species in mainland china. | to date, 26 species of phytophthora have been reported in mainland china but only 23 are accepted as good taxa. phytophthora nicotianae (p. parasitica) is the single most important species causing over 40 different plant diseases; p. boehmeriae is widespread attacking gossypium, boehmeria, citrus, broussonetia papyrifera and pterocarya stenoptera; p. "fragariae var. oryzo-bladis" is unique to mainland china causing blight of oryza sativa seedlings; p. megasperma sensu lato has been isolated from ... | 1997 | 16283113 |
| an agrobacterium-transformed cell culture from the monocot asparagus officinalis. | cultured stem fragments from the monocotyledonous plant asparagus officinalis infected by the oncogenic bacterium agrobacterium tumefaciens developed tumorous proliferations. this tissue was propagated in vitro on hormone-free culture medium. the t-dna-encoded markers nopaline and agrocinopine were unambiguously detected in these tissues. the data demonstrate that stable t-dna transfer as well as expression of t-dna genes is possible in at least some monocotyledonous plants. this opens new possi ... | 1984 | 16453585 |
| t-dna organization in tumor cultures and transgenic plants of the monocotyledon asparagus officinalis. | asparagus officinalis was the first monocotyledonous plant from which hormone-independent and opine-producing crown gall tissue could be isolated. we confirm by dna hybridization that tumor lines obtained after infection of this plant by agrobacterium strains harboring wild-type nopaline and octopine tumor-inducing (ti) plasmids are stably transformed and contain transferred dna (t-dna) segments identical to the t-dna found in dicotyledonous plants. we have also infected asparagus with a nononco ... | 1987 | 16593862 |
| purification, properties and comparative specificities of the enzyme prolyl-transfer ribonucleic acid synthetase from phaseolus aureus and polygonatum multiflorum. | 1. a prolyl-s-rna synthetase (prolyl-transfer rna synthetase) has been purified about 250-fold from seed of phaseolus aureus (mung bean), a species not producing azetidine-2-carboxylic acid, and more than 10-fold from rhizome apices of polygonatum multiflorum, a liliaceous species containing azetidine-2-carboxylic acid. the latter enzyme was unstable during ammonium sulphate fractionation. 2. the enzymes exhibited different substrate specificities towards the analogue. that from phaseolus, when ... | 1965 | 16749091 |
| modeling the environmental fate of cadmium in a large wastewater irrigation area. | the fate of cadmium in soils is governed by spatially heterogeneous processes that proceed from decades to centuries. this study aimed at modeling the fate of cd within the wastewater irrigation area (wia) of braunschweig (germany). the sandy soils (mainly dystric cambisol or typic haplumbrept) at this site (28 km2) have received considerable loads of heavy metals by irrigation of municipal wastewater for up to 40 yr. the soils of the wia are in agricultural use. the main crops are sugar beet (b ... | 2006 | 16899742 |
| chromatographic behaviour of steroidal saponins studied by high-performance liquid chromatography-mass spectrometry. | the chromatographic behaviour of steroidal saponins found in anemarrhena asphodeloides, asparagus officinalis, convallaria majalis, digitalis purpurea and ruscus aculeatus was studied by hplc-ms using a c-18 reversed-phase column and aqueous acetonitrile or aqueous methanol mobile phase gradients, with or without the addition of 1% acetic acid. the behaviour was compared to that of triterpene saponins found in aesculus hippocastanum, centella asiatica, panax notoginseng and potentilla tormentill ... | 2007 | 17391684 |
| the subunit composition of hinokiresinol synthase controls geometrical selectivity in norlignan formation. | the selective formation of e- or z-isomers is an important process in natural product metabolism. we show that the subunit composition of an enzyme can alter the geometrical composition of the enzymatic products. hinokiresinol synthase, purified from asparagus officinalis cell cultures, is responsible for the conversion of (7e,7'e)-4-coumaryl 4-coumarate to (z)-hinokiresinol, the first step in norlignan formation. the protein is most likely a heterodimer composed of two distinct subunits, which ... | 2007 | 18093914 |
| production of extracellular exoinulinase from kluyveromyces marxianus ys-1 using root tubers of asparagus officinalis. | root tubers of asparagus officinalis were used as a source of raw inulin for the production of exoinulinase (ec 3.2.1.7) from kluyveromyces marxianus ys-1. root extract prepared at 10kg/cm2 pressure for 10min showed maximum inulinase production. medium components and process parameters were standardized to improve the enzyme production. inulinase yield of 40.2iu/ml in a medium containing raw inulin (3.5%), beef extract (2%), sds (0.001%), mn2+ (2.0mm), mg2+ (1.5mm), co2+ (2mm) and ph 6.5 has bee ... | 2008 | 18280145 |
| arabidopsis defense response against fusarium oxysporum. | the plant fungal pathogen fusarium oxysporum (fox) is the causal agent of root rot or wilt diseases in several plant species, including crops such as tomato (solanum lycopersicum), banana (musa sapientum) and asparagus (asparagus officinalis). colonization of plants by fox leads to the necrosis of the infected tissues, a subsequent collapse of vascular vessels and decay of the plant. plant resistance to fox appears to be monogenic or oligogenic depending on the host. perception of fox by plants ... | 2008 | 18289920 |
| steroids from the roots of asparagus officinalis and their cytotoxic activity. | one new (sarsasapogenin o) and seven known steroids were isolated from the roots of asparagus officinalis l. their structures were elucidated on the basis of spectroscopic analysis, including various 2d-nmr techniques, hydrolysis, and by comparison of spectral data of known compounds. these compounds together with nine steroids which were previously isolated from this plant, were tested for cytotoxic activity. among them, eight compounds displayed significant cytotoxicities against human a2780, ... | 2008 | 18713412 |
| occurrence and characterization of a phytophthora sp. pathogenic to asparagus (asparagus officinalis) in michigan. | a homothallic phytophthora sp. was recovered from asparagus (asparagus officinalis) spears, storage roots, crowns, and stems in northwest and central michigan in 2004 and 2005. isolates (n = 131) produced ovoid, nonpapillate, noncaducous sporangia 45 microm long x 26 microm wide and amphigynous oospores of 25 to 30 microm diameter. mycelial growth was optimum at 25 degrees c with no growth at 5 and 30 degrees c. all isolates were sensitive to 100 ppm mefenoxam. pathogenicity studies confirmed th ... | 2008 | 18943453 |
| asparanin a induces g(2)/m cell cycle arrest and apoptosis in human hepatocellular carcinoma hepg2 cells. | we recently established that asparanin a, a steroidal saponin extracted from asparagus officinalis l., is an active cytotoxic component. the molecular mechanisms by which asparanin a exerts its cytotoxic activity are currently unknown. in this study, we show that asparanin a induces g(2)/m phase arrest and apoptosis in human hepatocellular carcinoma hepg2 cells. following treatment of hepg2 cells with asparanin a, cell cycle-related proteins such as cyclin a, cdk1 and cdk4 were down-regulated, w ... | 2009 | 19254688 |
| preliminary assessment of nutritional value of plant-based diets in relation to human nutrients. | in this research, we present preliminary nutritional data for traditional vegetables and fruits including their content of mineral elements (calcium, potassium, sodium, zinc, and iron) and antioxidant phenolic compounds levels. eight vegetables and vegetables were studied. plant foods asparagus officinalis dc, chlorophytum comosum linn., cordia myxa roxb., portulaca oleracia linn. and solanum indicum linn. were collected in behbehan, south iran, and also alocacia indica sch., eulophia ocherata l ... | 2009 | 19274594 |
| expression of cry1ac in transgenic tobacco plants under the control of a wound-inducible promoter (aopr1) isolated from asparagus officinalis to control heliothis virescens and manduca sexta. | expression of cry1ac gene from bacillus thuringiensis (bt) was evaluated under the control of a wound-inducible aopr1 promoter from asparagus officinalis in transgenic tobacco plants. the leaves of transgenic plants were mechanically wounded to evaluate the activity of the aopr1 promoter in driving the expression of cry1ac protein at the wound site. our results indicate that mechanical wounding of transgenic plants was effective in inducing the expression of cry1ac protein. as a result of this i ... | 2009 | 19353306 |
| the effect of plant growth-promoting rhizobacteria on asparagus seedlings and germinating seeds subjected to water stress under greenhouse conditions. | plant growth-promoting rhizobacteria (pgpr) can have positive effects on vigour and productivity, especially under stress conditions. in asparagus (asparagus officinalis l.) field culture, seeds are planted in high-density nurseries, and 1-year-old crowns are transplanted to production fields. performance can be negatively affected by water stress, transplant shock, and disease pressure on wounded roots. pgpr inoculation has the potential to alleviate some of the stresses incurred in the product ... | 2009 | 19396238 |
| a systematic review of the efficacy and safety of herbal medicines used in the treatment of obesity. | this review focuses on the efficacy and safety of effective herbal medicines in the management of obesity in humans and animals. pubmed, scopus, google scholar, web of science, and iranmedex databases were searched up to december 30, 2008. the search terms were "obesity" and ("herbal medicine" or "plant", "plant medicinal" or "medicine traditional") without narrowing or limiting search elements. all of the human and animal studies on the effects of herbs with the key outcome of change in anthrop ... | 2009 | 19575486 |
| effects of asparagus officinalis extracts on liver cell toxicity and ethanol metabolism. | asparagus officinalis is a vegetable that is widely consumed worldwide and has also long been used as a herbal medicine for the treatment of several diseases. although a. officinalis is generally regarded as a supplement for the alleviation of alcohol hangover, little is known about its effects on cell metabolism. therefore, this study was conducted to analyze the constituents of the young shoots and the leaves of asparagus and to compare their biochemical properties. the amino acid and inorgani ... | 2009 | 19895471 |
| egg attachment of the asparagus beetle crioceris asparagi to the crystalline waxy surface of asparagus officinalis. | plant surfaces covered with crystalline epicuticular waxes are known to be anti-adhesive, hardly wettable and preventing insect attachment. but there are insects that are capable of gluing their eggs to these surfaces by means of proteinaceous secretions. in this study, we analysed the bonding region between the eggs of crioceris asparagi and the plant surface of asparagus officinalis using light and cryo-scanning electron microscopy. the wettability of the plant surface by egg secretion was com ... | 2010 | 19923132 |
| fumonisin detection and analysis of potential fumonisin-producing fusarium spp. in asparagus (asparagus officinalis l.) in zhejiang province of china. | fumonisins are mycotoxins produced by a number of fusarium species, including several pathogens of asparagus plants. china is one of the largest asparagus producers in the world. in this study, we analysed the contamination of fumonisins and fumonisin-producing fungi in asparagus spear samples from zhejiang province, the major asparagus production province in china. | 2010 | 20355120 |
| hypolipidaemic and hepatoprotective effects of ethanolic and aqueous extracts from asparagus officinalis l. by-products in mice fed a high-fat diet. | asparagus (asparagus officinalis l.) by-products, i.e. the parts of the spears discarded during industrial processing, might have potential use as food supplements for their therapeutic effects. in this study the hypolipidaemic and hepatoprotective effects of ethanolic (eea) and aqueous (aea) extracts from asparagus by-products were evaluated in mice fed a high-fat diet (hfd). | 2010 | 20393993 |
| a thaumatin-like gene from asparagus officinalis (aoprt-l) exhibits slow activation following tissue maceration or salicylic acid treatment, suggesting convergent defence-related signalling in monocots. | summary messenger rna derived from mechanically separated cells of asparagus has proved to be an enriched source of defence-related transcripts. we describe the characterization of a novel pr-5 gene coding for a secreted protein of neutral pi (aoprt-l) that is strongly up-regulated following cell isolation or following accelerated tissue ageing caused by tissue maceration, but which is also responsive to salicylic acid, a defence-related signal not normally associated with wound responses. infec ... | 2000 | 20572983 |
| a pr-5 gene promoter from asparagus officinalis (aoprt-l) is not induced by abiotic stress, but is activated around sites of pathogen challenge and by salicylate in transgenic tobacco. | summary using a promoter-uida (aoprt-l-gus) construct, we have characterized heterologous expression controlled by an asparagus officinalis acidic pr-5 gene promoter. the construct was found to be up-regulated following a variety of treatments with the defence signal salicylate. similarly, aoprt-l-gus was induced by the sa mimic benzothiodiazole, however, unlike salicylate, this compound does not appear to be transported through the vasculature. the construct was insensitive to wounding and to t ... | 2000 | 20572984 |
| hypolipidemic effect of n-butanol extract from asparagus officinalis l. in mice fed a high-fat diet. | during industrial processing of asparagus (asparagus officinalis l.), around half of each spear is discarded. however, these discarded asparagus (by-products) might be used as food supplements for their potential therapeutic effects. this study evaluated the hypolipidemic effect of n-butanol extract (bea) from asparagus by-products in mice fed a high-fat diet (hfd). continuous hfd feeding caused hyperlipidemia, oxidative stress and liver damage in mice. interestingly, while bea significantly dec ... | 2011 | 21280112 |
| the aqueous extract of asparagus officinalis l. by-product exerts hypoglycaemic activity in streptozotocin-induced diabetic rats. | background: the inedible bottom part of asparagus (asparagus officinalis l.) spears, around one-third to one-half of the total length, is always discarded as by-product. since it still contains various bioactive substances, this by-product might have potential usage in food supplements for its therapeutic effects. in this study the hypoglycaemic effect of the aqueous extract of asparagus by-product (aea) was evaluated in a streptozotocin (stz)-induced diabetic rat model. results: continuous admi ... | 2011 | 21567411 |
| free radicals, salicylic acid and mycotoxins in asparagus after inoculation with fusarium proliferatum and f. oxysporum. | electron paramagnetic resonance was used to monitor free radicals and paramagnetic species like fe, mn, cu generation, stability and status in asparagus officinalis infected by common pathogens fusarium proliferatum and f. oxysporum. occurrence of f. proliferatum and f. oxysporum, level of free radicals and other paramagnetic species, as well as salicylic acid and mycotoxins content in roots and stems of seedlings were estimated on the second and fourth week after inoculation. in the first term ... | 2011 | 21957331 |
| hypocholesterolemic and hepatoprotective effects of "triguero" asparagus from andalusia in rats fed a high cholesterol diet. | the cultivated species of the wild autochthonous asparagus officinalis in andalusia in spain is commonly called "triguero" asparagus. this vegetable has traditionally been very much appreciated for its organoleptic and nutritional characteristics. this study has been designed to evaluate the potential effect of different concentrations of freeze-dried asparagus (500, 250, and 125 mg/kg of body weight/day) on oxidative status and lipid profile in rats fed a cholesterol-rich diet. after five weeks ... | 2012 | 22203881 |
| In vitro cytotoxic screening of selected Saudi medicinal plants. | Many natural products from plants have been identified to exert anticancer activity. It might be expected to be a challenge to look at the Saudi plants in order to discover new sources for new molecules which may have anticancer activity. The methanolic extracts of forty species of plants traditionally used in Saudi Arabia for the treatment of a variety of diseases were tested in vitro for their potential anticancer activity on different human cancer cell lines. The cytotoxic activity of the met ... | 2011 | 21953271 |
| asparagus officinalis extract controls blood glucose by improving insulin secretion and β-cell function in streptozotocin-induced type 2 diabetic rats. | the aim of the present study was to evaluate the anti-diabetic mechanism of asparagus officinalis, a dietary agent used for the management of diabetes. streptozotocin (90 mg/kg) was injected in 2-d-old wistar rat pups to induce non-obese type 2 diabetes. after confirmation of diabetes on the 13th week, diabetic rats were treated with a methanolic extract of a. officinalis seeds (250 and 500 mg/kg per d) or glibenclamide for 28 d. after the treatment, fasting blood glucose, serum insulin and tota ... | 2012 | 22221560 |
| agrobacterium-mediated transformation of asparagus officinalis l. long-term embryogenic callus and regeneration of transgenic plants. | twenty-three independent kanamycin resistant lines were obtained after cocultivation of longterm embryogenic cultures of three asparagus officinalis l. genotypes with an agrobacterium tumefaciens strain harboring ß-glucuronidase and neomycin phosphotransferase ii genes. all the lines showed ß-glucuronidase activity by histological staining. dna analysis by southern blots of the kanamycin resistant embryogenic lines and of a plant regenerated from one of them confirmed the integration of the t-dn ... | 1993 | 24196848 |
| viruses of asparagus. | the current knowledge on viruses infecting asparagus (asparagus officinalis) is reviewed. over half a century, nine virus species belonging to the genera ilarvirus, cucumovirus, nepovirus, tobamovirus, potexvirus, and potyvirus have been found in this crop. the potyvirus asparagus virus 1 (av1) and the ilarvirus asparagus virus 2 (av2) are widespread and negatively affect the economic life of asparagus crops reducing yield and increasing the susceptibility to biotic and abiotic stress. the main ... | 2012 | 22682173 |
| quantitative analysis of the migration and accumulation of bacillus subtilis in asparagus officinalis. | bacillus subtilis b96-ii is a broad-spectrum biological control strain. it effectively suppresses soil-borne fungal diseases in vegetables. a green fluorescence protein (gfp) was expressed in b96-ii to detect migration of b96-ii into the root and stem of asparagus. the gfp-tagged b96-ii (b96-ii-gfp) strain exhibited bright green fluorescence under a fluorescence microscope. gfp was stable and had no apparent effects on the growth of the strain. asparagus plants were planted in the soil inoculate ... | 2015 | 26126832 |
| wildly growing asparagus (asparagus officinalis l.) hosts pathogenic fusarium species and accumulates their mycotoxins. | asparagus officinalis l. is an important crop in many european countries, likely infected by a number of fusarium species. most of them produce mycotoxins in plant tissues, thus affecting the physiology of the host plant. however, there is lack of information on fusarium communities in wild asparagus, where they would definitely have considerable environmental significance. therefore, the main scientific aim of this study was to identify the fusarium species and quantify their typical mycotoxins ... | 2016 | 26687343 |
| occurrence of fumonisins in asparagus (asparagus officinalis l.) and garlic (allium sativum l.) from germany. | fusarium proliferatum is able to produce fumonisins and is considered a pathogen of many economically important plants (e.g. corn, rice, asparagus) [1]. the occurrence of fumonisin fb1 inf. proliferatum infected asparagus spears from germany was investigated using a liquid chromatography/electrospray ionization-mass spectrometry (lc-esi-ms) method with isotopically labeled fumonisin fb1-d6 as internal standard. asparagus samples were harvested in july 2000 and screened forfusarium species. altog ... | 2004 | 23604994 |
| host suitability and response of asparagus cultivars to meloidogyne species and races. | the host-parasite relationships of asparagus and meloidogyne spp. were examined under greenhouse and microplot conditions. meloidogyne species and races differed greatly in their ability to reproduce on asparagus seedlings. meloidogyne hapla generally failed to reproduce, and m. javanica, m. arenaria race 1, and m. incognita race 3 reproduced poorly, with a reproduction factor (rf = final population/initial population) usually < 1.0. only m. arenaria race 2 and m. incognita races 1 and 4 reprodu ... | 1992 | 19283211 |
| screening of ten plant species for metaphase chromosome preparation in adult mosquitoes (diptera: culicidae) using an inoculation technique. | the screening of 10 plant species (aloe barbadensis mill., asparagus officinalis l., as. plumosus bak., as. racemosus willd., as. sprengeri regel, codyline fruticosa goppert, dracaena loureiri gagnep., gloriosa superba l., hemerocallis flava l., and sansevieria cylindrica bojer) for colchicine-like substance(s) using a mosquito cytogenetic assay revealed that a 1% solution of dried gl. superba rhizome extracted in 0.85% sodium chloride solution could be used instead of a 1% colchicine in hanks' ... | 1999 | 10593098 |
| ethnomedicinal plants of shankaracharya hill, srinagar, j&k, india. | primitive human societies have always relied on plants and plant products for various remedies. in certain areas, these folk medical prescriptions are endemic and have survived through ages from one generation to the next through word of mouth. they do not exist as written knowledge. the present study was undertaken with an objective of documenting the ethnobotanical information of medicinal plants of shankaracharya hill by taking the help of local herbalists, elderly and knowledgeable people. | 2015 | 26008867 |
| fungal planet description sheets: 107-127. | novel species of microfungi described in the present study include the following from australia: phytophthora amnicola from still water, gnomoniopsis smithogilvyi from castanea sp., pseudoplagiostoma corymbiae from corymbia sp., diaporthe eucalyptorum from eucalyptus sp., sporisorium andrewmitchellii from enneapogon aff. lindleyanus, myrmecridium banksiae from banksia, and pilidiella wangiensis from eucalyptus sp. several species are also described from south africa, namely: gondwanamyces wingfi ... | 2012 | 23105159 |
| [allergy to asparagus]. | asparagus (asparagus officinalis) is a widely grown vegetable; together with garlic, the onion and the leek, it belongs to the liliaceae family. both delayed cell-mediated reactions and ige-mediated reactions secondary to asparagus have been described. while the former (allergic contact dermatitis) are a fairly common cause of occupational disease, only a few case-reports of ige-mediated reactions have been published. ige-mediated reactions can be further grouped into food allergy and reactions ... | 2003 | 13679959 |
| young, intact and nested retrotransposons are abundant in the onion and asparagus genomes. | although monocotyledonous plants comprise one of the two major groups of angiosperms and include >65 000 species, comprehensive genome analysis has been focused mainly on the poaceae (grass) family. due to this bias, most of the conclusions that have been drawn for monocot genome evolution are based on grasses. it is not known whether these conclusions apply to many other monocots. | 2013 | 23887091 |
| comparative sequence and genetic analyses of asparagus bacs reveal no microsynteny with onion or rice. | the poales (includes the grasses) and asparagales [includes onion (allium cepa l.) and asparagus (asparagus officinalis l.)] are the two most economically important monocot orders. the poales are a member of the commelinoid monocots, a group of orders sister to the asparagales. comparative genomic analyses have revealed a high degree of synteny among the grasses; however, it is not known if this synteny extends to other major monocot groups such as the asparagales. although we previously reporte ... | 2006 | 17016688 |
| comparative genomic analyses in asparagus. | garden asparagus (asparagus officinalis l.) belongs to the monocot family asparagaceae in the order asparagales. onion (allium cepa l.) and asparagus officinalis are 2 of the most economically important plants of the core asparagales, a well supported monophyletic group within the asparagales. coding regions in onion have lower gc contents than the grasses. we compared the gc content of 3374 unique expressed sequence tags (ests) from a. officinalis with lycoris longituba and onion (both members ... | 2005 | 16391674 |
| domestic processing of onion bulbs (allium cepa) and asparagus spears (asparagus officinalis): effect on flavonol content and antioxidant status. | two commonly consumed plant foods, onion bulbs and asparagus spears, were subjected to typical domestic processing, including chopping, maceration, and boiling. the impact of these processes on flavonol content was assessed. further, the consequences of these processes on the antioxidant capacity of the tissues were evaluated with the beta-carotene bleaching method. chopping significantly affected rutin content in asparagus, yielding an 18.5% decrease in 60 min; but in onions, quercetin 3,4'-dig ... | 2001 | 11453754 |
| inhibition of sucrose:sucrose fructosyl transferase by cations and ionic strength. | fructans are storage carbohydrates found in many temperate grasses. the first enzyme in the biosynthetic pathway of most fructans is sucrose:sucrose fructosyl transferase (sst). in this report, we demonstrate that k+ and ionic strength noncompetitively inhibit the activity of sst from wheat (triticum aestivum l.) stems. the ki for this inhibition is high, 122 mm, but in the range of concentrations of k+ found in the tissue (205-314 mm). addition of kcl to the assay system had no effect on the ph ... | 1993 | 12231714 |
| contact dermatitis to asparagus officinalis. | a 53-year-old farm worker presented with a 3-year history of an occupational allergic contact dermatitis to asparagus. the dermatitis cleared quickly with courses of systemic corticosteroids but relapsed within days of further exposure to asparagus. the genera asparagus is made up of some 300 species. it belongs to the family liliaceae which includes tulips, onions and garlic. asparagus contains asparagin, coniferin and the glucoside vanillin. the allergen may be a plant growth inhibitor, 1,2,3- ... | 2000 | 11105376 |
| a putative myb35 ortholog is a candidate for the sex-determining genes in asparagus officinalis. | asparagus officinalis (garden asparagus) is a dioecious perennial crop. for agricultural production of a. officinalis, male plants have advantages over female plants. the dioecism of a. officinalis is determined by the single dominant masculinizing m locus, which is involved in tapetal cell development in stamens, but thus far no specific m locus genes have been identified. we re-analyzed previously published rna-seq data for the a. officinalis transcriptome, cloned some genes, and discovered th ... | 2017 | 28176806 |
| the allelochemical mdca inhibits lignification and affects auxin homeostasis. | the phenylpropanoid 3,4-(methylenedioxy)cinnamic acid (mdca) is a plant-derived compound first extracted from roots of asparagus officinalis and further characterized as an allelochemical. later on, mdca was identified as an efficient inhibitor of 4-coumarate-coa ligase (4cl), a key enzyme of the general phenylpropanoid pathway. by blocking 4cl, mdca affects the biosynthesis of many important metabolites, which might explain its phytotoxicity. to decipher the molecular basis of the allelochemica ... | 2016 | 27506238 |
| asparagus irx9, irx10, and irx14a are components of an active xylan backbone synthase complex that forms in the golgi apparatus. | heteroxylans are abundant components of plant cell walls and provide important raw materials for the food, pharmaceutical, and biofuel industries. a number of studies in arabidopsis (arabidopsis thaliana) have suggested that the irregular xylem9 (irx9), irx10, and irx14 proteins, as well as their homologs, are involved in xylan synthesis via a golgi-localized complex termed the xylan synthase complex (xsc). however, both the biochemical and cell biological research lags the genetic and molecular ... | 2016 | 26951434 |
| sex-biased gene expression in dioecious garden asparagus (asparagus officinalis). | sex chromosomes have evolved independently in phylogenetically diverse flowering plant lineages. the genes governing sex determination in dioecious species remain unknown, but theory predicts that the linkage of genes influencing male and female function will spur the origin and early evolution of sex chromosomes. for example, in an xy system, the origin of an active y may be spurred by the linkage of female suppressing and male promoting genes. garden asparagus (asparagus officinalis) serves as ... | 2015 | 25817071 |
| metabolic regulation of asparagine synthetase gene expression in maize (zea mays l.) root tips. | differential hybridization of a cdna library constructed with poly(a)+ mrna from 24 h starved maize (zea mays l.) root tips, resulted in the isolation of a cdna (called pzss1) that was highly induced during glucose deprivation. the nucleotide sequence analysis of the full-length cdna allowed its identification by comparison with sequence data bases. the 586 amino acid sequence encoded by pzss1 was shown to be about 60% identical to sequences of asparagine synthetases (ec 6.3.5.4) from asparagus ... | 1996 | 8580967 |
| asparagus decline: autotoxicity and autotoxic compounds in asparagus rhizomes. | asparagus (asparagus officinalis l.) is a perennial vegetable, but its crop productivity and quality decrease gradually. one possible reason for "asparagus decline" is thought to be the autotoxicity of asparagus. however, the autotoxic property of asparagus rhizomes remains unknown. the objective of this study was to determine the potential role of rhizomes in the autotoxicity of asparagus. an aqueous methanol extract of asparagus rhizomes inhibited the growth of asparagus seedlings and six othe ... | 2017 | 28314158 |
| aqueous extracts from asparagus stems prevent memory impairments in scopolamine-treated mice. | aqueous extracts from asparagus officinalis l. stems (aeas) are rich in polysaccharides, gamma-amino butyric acid (gaba), and steroidal saponin. this study was designed to investigate the effects of aeas on learning, memory, and acetylcholinesterase-related activity in a scopolamine-induced model of amnesia. sixty icr mice were randomly divided into 6 groups (n = 10) including the control group (ct), scopolamine group (sc), donepezil group (don), low, medium, and high dose groups of aeas (ls, ms ... | 2017 | 28275781 |
| saponin profile of wild asparagus species. | the aim of this work was to study the saponin profiles from spears of different wild asparagus species in the context of its genetic diversity aside from geographical seed origin. they included asparagus pseudoscaber grecescu, asparagus maritimus (l.) mill., asparagus brachiphyllus turcz., asparagus prostrates dumort., and asparagus officinalis l. the saponin analysis by lc-ms has shown that saponin profile from wild asparagus is similar to that previously described for triguero asparagus from h ... | 2017 | 28152205 |
| antiradical capacity and polyphenol composition of asparagus spears varieties cultivated under different sunlight conditions. | asparagus officinalis has a high nutritional value. asparagus is rich in a number of bioactive compounds, mainly flavonoids (quercetin), glutathione, vitamin c, vitamin e, fructans (inulin and fructooligosaccharides) and phytosterols (b-sitosterol). these compounds may play an important role in human health. the purpose of this study was to examine the antioxidant potential and polyphenol composition of white, pale-colored and green asparagus spears of different cultivars. | 2017 | 28071026 |
| myb transcription factor gene involved in sex determination in asparagus officinalis. | dioecy is a plant mating system in which individuals of a species are either male or female. although many flowering plants evolved independently from hermaphroditism to dioecy, the molecular mechanism underlying this transition remains largely unknown. sex determination in the dioecious plant asparagus officinalis is controlled by x and y chromosomes; the male and female karyotypes are xy and xx, respectively. transcriptome analysis of a. officinalis buds showed that a myb-like gene, male speci ... | 2017 | 27869347 |
| sucrose delays senescence and preserves functional compounds in asparagus officinalis l. | the high metabolic rate of harvested asparagus spears (asparagus officinalis l.) causes rapid deterioration. to extend shelf life, we investigated the effect of sucrose treatment on asparagus during storage. asparagus spears were treated with 3%, 5%, and 10% sucrose and stored at 2 °c for 20 h. cellular respiration decreased, but other processes were unaltered by exogenous sucrose. the overall appearance of asparagus treated with 3% sucrose and stored at 2 °c for 18 days was rated as good and ex ... | 2016 | 27751855 |
| brachycorynella asparagi (mordv.) induced-oxidative stress and antioxidative defenses of asparagus officinalis l. | the aim of this study was to investigate whether and to what extent oxidative stress is induced in leaves of one- and two-month-old plants of asparagus officinalis l. cv. argenteuil infested by brachycorynella asparagi (mordvilko) at a varied population size. the pest b. asparagi has been described as the most damaging species feeding on asparagus. analyses using electron paramagnetic resonance (epr) demonstrated generally higher concentrations of semiquinone radicals with g-values of 2.0045 ± 0 ... | 2016 | 27775613 |
| effects of post-harvest stigmasterol treatment on quality-related parameters and antioxidant enzymes of green asparagus (asparagus officinalis l.). | the effects of immersion of green asparagus spears in stigmasterol solution (0, 0.5 and 1.0 g l(-1), 15 min, 25°c) on weight loss, surface colour, enzyme activities and content of malondialdehyde, total phenol, lignin and chlorophyll were investigated during 40 days of storage at 4 ± 0.5°c. of the concentrations tested, 0.5 g l(-1) treatment was most effective. stigmasterol (0.5 g l(-1)) treatment significantly reduced colour changes and losses of fresh weight and chlorophyll content. superoxide ... | 2016 | 27689304 |
| two new phenolic compounds and antitumor activities of asparinin a from asparagus officinalis. | two new phenolic acid compounds, asparoffin c (1) and asparoffin d (2), together with four known compounds, asparenyol (3), gobicusin b (4), 1-methoxy-2-hydroxy-4-[5-(4-hydroxyphenoxy)-3-penten-1-ynyl] phenol (5), and asparinin a (6), have been isolated from the stems of asparagus officinalis. the structures were established by extensive spectroscopic methods (ms and 1d and 2d nmr). compound 6 has obvious antitumor activities both in vitro and in vivo. | 2017 | 27618876 |
| preparation of cellulose nanocrystals from asparagus (asparagus officinalis l.) and their applications to palm oil/water pickering emulsion. | nano cellulosic materials as promising emulsion stabilizers have attracted great interest in food industry. in this paper, five different sized cellulose nanocrystals (cnc) samples were prepared from stem of asparagus officinalis l. using the same sulfuric acid hydrolysis conditions but different times (1.5, 2, 2.5, 3.0, and 3.5h). the sizes of these cnc ranged from 178.2 to 261.8nm, with their crystallinity of 72.4-77.2%. the cnc aqueous dispersions showed a typical shear thinning behavior. in ... | 2016 | 27474537 |
| effects of aqueous extract from asparagus officinalis l. roots on hypothalamic-pituitary-gonadal axis hormone levels and the number of ovarian follicles in adult rats. | asparagus is a plant with high nutritional, pharmaceutical, and industrial values. | 2016 | 27200420 |
| identification of mirnas and their targets through high-throughput sequencing and degradome analysis in male and female asparagus officinalis. | micrornas (mirnas), a class of non-coding small rnas (srnas), regulate various biological processes. although mirnas have been identified and characterized in several plant species, mirnas in asparagus officinalis have not been reported. as a dioecious plant with homomorphic sex chromosomes, asparagus is regarded as an important model system for studying mechanisms of plant sex determination. | 2016 | 27068118 |
| [the use of synthetic polymers (superdisintegrants) in technology tablets containing ethanol dry extract from asparagus officinalis]. | dry extracts are now frequently used in medicine as an alternative to synthetic drugs. in the case of tablet technology with dry plant extracts, the proper selection of disintegrants (superdisintegrants) is particularly important. objectives. the aim of this study was to evaluate the usefulness of the polymers constituting superdisintegrants (vivasol®, vivastar®, polyplasdone xl) in uncoated tablet formulation of alcoholic extracted from asparagus officinalis. | 2016 | 26994889 |
| genome-wide identification and validation of simple sequence repeats (ssrs) from asparagus officinalis. | garden asparagus (asparagus officinalis), an important vegetable cultivated worldwide, can also serve as a model dioecious plant species in the study of sex determination and sex chromosome evolution. however, limited dna marker resources have been developed and used for this species. to expand these resources, we examined the dna sequences for simple sequence repeats (ssrs) in 163,406 scaffolds representing approximately 400 mbp of the a. officinalis genome. a total of 87,576 ssrs were identifi ... | 2016 | 26987412 |
| characterization of cell wall components and their modifications during postharvest storage of asparagus officinalis l.: storage-related changes in dietary fiber composition. | changes in cell wall composition during storage of plant foods potentially alter the physiological effects of dietary fiber components. to investigate postharvest cell wall modifications of asparagus and their consequences in terms of insoluble dietary fiber structures, asparagus was stored at 20 and 1 °c for different periods of time. structural analyses demonstrated postharvest changes in the polysaccharide profile, dominated by decreased portions of galactans. increasing lignin contents corre ... | 2016 | 26671648 |
| two new acetylenic compounds from asparagus officinalis. | two new acetylenic compounds, asparoffins a (1) and b (2), together with two known compounds, nyasol (3) and 3″-methoxynyasol (4), were isolated from stems of asparagus officinalis. the structures of two new compounds were elucidated on the basis of detailed spectroscopic analyses (uv, ir, ms, 1d, and 2d nmr). all compounds were evaluated for their cytotoxicities against three human cancer cell lines. | 2016 | 26558641 |
| drying of restructured chips made from the old stalks of asparagus officinalis: impact of different drying methods. | old stalks of asparagus officinalis, which account for one third of the total length of each spear, are always discarded as waste. to make full use of the resource, a kind of restructured asparagus officinalis chip was made. the effects of pulse-spouted microwave-assisted vacuum drying (psmvd), microwave-assisted vacuum drying (mvd) and vacuum drying (vd) on texture, color and other quality parameters of restructured chips were then studied to obtain high-quality dried chips. | 2016 | 26337496 |
| antihepatic fibrosis effect of active components isolated from green asparagus (asparagus officinalis l.) involves the inactivation of hepatic stellate cells. | green asparagus (asparagus officinalis l.) is a vegetable with numerous nutritional properties. in the current study, a total of 23 compounds were isolated from green asparagus, and 9 of these compounds were obtained from this genus for the first time. preliminary data showed that the ethyl acetate (etoac)-extracted fraction of green asparagus exerted a stronger inhibitory effect on the growth of t-hsc/cl-6 cells, giving an ic50 value of 45.52 μg/ml. the biological activities of the different co ... | 2015 | 26089141 |
| isolation of differentially expressed sex genes in garden asparagus using suppression subtractive hybridization. | garden asparagus (asparagus officinalis l.) is a dioecious species whose male and female flowers are found in separate unisexual individuals. a region called the m-locus, located on a pair of homomorphic sex chromosomes, controls sexual dimorphism in asparagus. to date, no sex determining gene has been isolated from asparagus. to identify more genes involved in flower development in asparagus, subtractive hybridization library of male flowers in asparagus was constructed by suppression subtracti ... | 2015 | 26038270 |
| top-down targeted metabolomics reveals a sulfur-containing metabolite with inhibitory activity against angiotensin-converting enzyme in asparagus officinalis. | the discovery of bioactive natural compounds containing sulfur, which is crucial for inhibitory activity against angiotensin-converting enzyme (ace), is a challenging task in metabolomics. herein, a new s-containing metabolite, asparaptine (1), was discovered in the spears of asparagus officinalis by targeted metabolomics using mass spectrometry for s-containing metabolites. the contribution ratio (2.2%) to the ic50 value in the crude extract showed that asparaptine (1) is a new ace inhibitor. | 2015 | 25922884 |
| asparagus spears as a model to study heteroxylan biosynthesis during secondary wall development. | garden asparagus (asparagus officinalis l.) is a commercially important crop species utilized for its excellent source of vitamins, minerals and dietary fiber. however, after harvest the tissue hardens and its quality rapidly deteriorates because spear cell walls become rigidified due to lignification and substantial increases in heteroxylan content. this latter observation prompted us to investigate the in vitro xylan xylosyltransferase (xylt) activity in asparagus. the current model system for ... | 2015 | 25894575 |
| extraction and analysis of antioxidant compounds from the residues of asparagus officinalis l. | asparagus residues were used as materials to obtain antioxidant compounds by solid-liquid extraction in this study. the effects of different extraction parameters including extraction solvents, time, temperature and liquid-solid ratio on the contents of total flavonoids, total phenolics and total antioxidant activity were investigated. antioxidant activity of the extract from asparagus residues was evaluated by hplc- abts · (+) and the bioactive components were identified by hplc- ms/ms. the res ... | 2015 | 25892766 |
| life table and consumption capacity of corn earworm, helicoverpa armigera, fed asparagus, asparagus officinalis. | the life table and consumption rate of helicoverpa armigera (hübner) (lepidoptera: noctuidae) reared on asparagus, asparagus officinalis l. (asparagales: asparagaceae) were studied under laboratory conditions to assess their interaction. development, survival, fecundity, and consumption data were analyzed by the age-stage, twosex life table. this study indicated that asparagus is a natural host of h. armigera. however, the poor nutritional content in asparagus foliage and the poor fitness of h. ... | 2014 | 25373181 |
| analysis of transposable elements in the genome of asparagus officinalis from high coverage sequence data. | asparagus officinalis is an economically and nutritionally important vegetable crop that is widely cultivated and is used as a model dioecious species to study plant sex determination and sex chromosome evolution. to improve our understanding of its genome composition, especially with respect to transposable elements (tes), which make up the majority of the genome, we performed illumina hiseq2000 sequencing of both male and female asparagus genomes followed by bioinformatics analysis. we generat ... | 2014 | 24810432 |
| bioactive compounds, antioxidant and binding activities and spear yield of asparagus officinalis l. | the aim of this investigation was to find a proper harvesting period and establishing fern number, which effects the spear yield, bioactive compounds and antioxidant activities of asparagus officinalis l. spears were harvested at 2, 4, and 6 weeks after sprouting. control for comparison was used without harvest. spears and total yield increased with prolonged spear harvest period. in harvest of 6 weeks long optimum spear yield was the highest and fern numbers were 5 ~ 8. bioactive compounds (pol ... | 2014 | 24793354 |
| improvement of blood pressure, glucose metabolism, and lipid profile by the intake of powdered asparagus ( lú sŭn) bottom-stems and cladophylls. | asparagus ( lú sǔn; asparagus officinalis l.) is a common vegetable, long used as an herbal medicine. the cladophylls and bottom-stems of asparagus have various pharmacological effects, but they are generally discarded at harvesting. the present open clinical trial was performed to examine the effects of the intake of cladophylls and bottom-stems on the improvement of metabolic syndrome characterized by hypertension, hyperglycemia, and dyslipidemia. twenty-eight healthy volunteers ingested eithe ... | 2013 | 24716185 |