| [review on nonessential constituents of vegetables. ii. cruciferae (brassica vegetables, radish, turnip, rutabaga, horse-radish) and gramineae (onion, leek, chive, garlic, asparagus) (author's transl)]. | in this paper the hitherto known constituents of the titled vegetables except proteins, carbohydrates, triglyceride-fatty acids, and vitamins are reviewed, especially the volatiles, organic acids, phenolics, carotenoids and lipids. | 1977 | 339600 |
| the genus allium--part 3. | allium is a genus of some 500 species belonging to the family liliaceae. however, only a few of these are important as food plants, notably onion, garlic, chive, leek, and rakkyo. such plants have been used for many centuries for their pungency and flavoring value, for their medicinal properties, and in some parts of the world, their use also has religious connotations. the flavors of members of alliums, in addition to being characteristic, are also complex, being derived enzymically from a numb ... | 1985 | 3905263 |
| nucleotide sequences of the 3' terminal region of onion yellow dwarf virus isolates from allium plants in japan. | the 2032 nucleotide sequence of the 3' terminal region of onion yellow dwarf virus (oydv) isolated from allium wakegi, bearing the genes for viral coat protein (cp) and a truncated rna-dependent rna polymerase, has been determined. respective homologies of the nucleotide sequence in the corresponding region and the deduced amino acid sequence of cp with the equivalents of leek yellow stripe virus (lysv) from garlic were 68.0 and 59.3%. variation in the nucleotide sequence is concentrated in the ... | 1997 | 9354273 |
| amino acid contacts between histones are the same for plants and mammals. binding-site studies using ultraviolet light and tetranitromethane. | leek chromatin has been cross-linked by uv light and tetranitromethane. the same major h2a--h2b and h2b--h4 cross-linked dimers are formed as in mammalian chromatin. cnbr peptide mapping shows that the cross-links occur in the same regions of the histone sequence for both plants and mammals. interspecies complexes formed between leek and calf h2a and h2b can be cross-linked by uv light with the same specificity as intraspecies h2a--h2b complexes. we conclude that certain geometric features of hi ... | 1979 | 435459 |
| isolation, characterization and molecular cloning of the mannose-binding lectins from leaves and roots of garlic (allium sativum l.). | two novel lectins were isolated from roots and leaves of garlic. characterization of the purified proteins indicated that the leaf lectin asal is a dimer of two identical subunits of 12 kda, which closely resembles the leaf lectins from onion, leek and shallot with respect to its molecular structure and agglutination activity. in contrast, the root lectin asari, which is a dimer of subunits of 15 kda, strongly differs from the leaf lectin with respect to its agglutination activity. cdna cloning ... | 1997 | 9037141 |
| molecular cloning of a cdna encoding 3-ketoacyl-acyl carrier protein synthase iii from leek. | 3-ketoacyl-acyl carrier protein synthase iii (kas iii) catalyzes the initial condensation of malonyl-acyl carrier protein (acp) with acetyl-coa in plant and bacterial fatty acid biosynthesis. the first cdna clone encoding kas iii from a monocot is reported here. a cdna clone was isolated from a leek epidermal cdna library by screening with spinach and arabidopsis heterologous probes from kas iii cdna clones. when expressed in escherichia coli, the cloned enzyme was able to catalyze the expected ... | 1996 | 8982066 |
| fertilizer effects on yield, mineral and amino acid composition, dietary fibre content and nutritive value of leeks. | in pot experiments with greatly differing rates of n, p, s, k and ca, dry matter (dm) yields of leek stems varied from 25 to 164 g/pot. total-n and no3-n concentrations varied from 1.18 to 3.56% and from 10 to 1515 ppm in dm, respectively. both n applications and p and k deficiency greatly increased total-n and no3-n content. s applications increased total-s content from 0.047 to 0.359% in dm, of which between approximately 100 to 25% were found in methionine+cystine. total-n/total-s ratios decr ... | 1996 | 8811730 |
| effects of fertilizer on insecticides adsorption and biodegradation in crop soils. | recent organic fertilizer treatments (cow manure, pig slurry, composts, or green manure) simultaneously increase insecticide adsorption onto soil and the insecticide soil persistence, indicating a mechanism of slow release of insecticide into soil by the organic matter. this occurred in sugar beet crops with aldicarb, thiofanox and imidacloprid; also, in leek, cauliflower and brussels sprouts crops with chlorpyrifos and chlorfenvinphos. in contrast, organic fertilizer treatments applied once or ... | 1996 | 8687996 |
| occurrence and sequence of a dnaj protein in plant (allium porrum) epidermal cells. | antibodies raised against a purified fraction from microsomal membranes of leek epidermal cells were used to screen a lambda zap expression library from epidermal cells of leak plants. a near full-length clone was isolated. this cdna contains an open reading-frame of 1,191 bp coding for a dnaj protein (leek dnaj 1 or ldj1). leek dnaj1 represents the second protein of this type described in a pluricellular organism, the first being that sequenced from human cells. | 1993 | 8495747 |
| [nucleotide sequence and organization of trna-gly (ucc), trna-arg (ucu), and alpha-subunits of cf1atpase in chloroplast dna of allium porrum]. | the nucleotide sequence of 1029 bp bamhi-fragment of leek chloroplast dna (allium porrum, fam. liliaceae) has been determined. the fragment contains the 3'-terminal part of the trna-gly (ucc) gene, the trna-arg (ucu) gene and the 3'-terminal domain of the cf1atpase alpha-subunit gene. the gene arrangement and the nucleotide sequence of this fragment are similar to those of the tobacco chloroplast dna but differ significantly from that of other monocots in which the region containing these genes ... | 1994 | 8180273 |
| activity of constitutive promoters in various species from the liliaceae. | in this paper we first review literature on the performance of various promoters in monocotyledonous species. in general, promoters isolated from monocots show a higher activity in monocot species. moreover, the presence of an intron between the promoter and reporter gene increases transcription levels. we used the same approach to study gene expression in liliaceae. the activities of the camv 35s, maize adh1-based pemu, rice act1 and maize ubi promoters, coupled to the beta-glucuronidase (gus) ... | 1995 | 7640366 |
| metal dispersion and transportational activities using food crops as biomonitors. | the multielement (al, ca, cd, ce, cr, cu, fe, mg, mn, ni, pb, si, and zn) levels of various common vegetables (bean, broccoli, cabbage, cauliflower, lettuce, marrow, onion, parsnip, spinach, sprouts, sweet corn, and tomato); fruits (grape and strawberry); herbs (garlic, lemon balm, marjoram, mint, rosemary and tarragon); local pasture species and surface soils collected from a commercial garden centre located within a distance of 30 m of the london orbital motorway (m25) is presented. comparativ ... | 1994 | 7517069 |
| origin and identification of bacteria which produce kairomones in the frass of acrolepiopsis assectella (lep., hyponomeutoidea). | the volatiles used by the parasitoid diadromus pulchellus to find its host, the leek moth, are produced by the bacteria developing in the frass of the host larvae. the origin and the nature of these bacteria were investigated. samples were taken from healthy leeks and from infested leeks in the field, as well as from the frass of larvae reared in the laboratory either on the host plant or on an artificial diet. the various species of bacteria identified were cultured in the presence of precursor ... | 1995 | 7498448 |
| the antioxidant activity of regularly consumed fruit and vegetables reflects their phenolic and vitamin c composition. | recent studies are emphasising the importance and putative modes of action of specific flavonoids as bioactive components of the diet in in vivo and in vitro models. thus, it is important to have a clear idea of the major phenolic families of which fruit and vegetables are comprised and the levels contained therein. regularly consumed fruit and vegetables of mixed varieties available on the uk market were analysed for the composition of the major individual phenolic components. the total phenoli ... | 2002 | 11999391 |
| scratch-chamber tests in food handler dermatitis. | foods were tested by the scratch-chamber and open application techniques in 80 hand dermatitis patients, 55 of whom were food handlers. both immediate and delayed reactions were seen. most immediate scratch-chamber test reactions were provoked by vegetables and spices in patients with birch pollen allergy, and most delayed reactions from spices in patients with allergy to balsam of peru, and from onion and leek. the evaluation of allergic and irritant reactions was difficult. positive open appli ... | 1987 | 2949931 |
| vagal gastric efferent activity and its reflex changes in conscious sheep. | electromyographical recordings from neck muscles reinnervated by the vagus nerve allowed monitoring of vagal output to the reticulo-rumen in conscious sheep. the vagus nerve was sectioned below the nodose ganglion and its central end anastomosed with the peripheral end of the spinal accessory nerve, which innervates the trapezius and mastoido-humeral muscles. fifty-three vagal efferent units recorded were identified and classified into seven distinguishable types on the basis of their temporal r ... | 1989 | 2748791 |
| [nucleic acid components in carbohydrate-rich food]. | the content of nucleic acid components in numerous foods, especially carbohydrate-rich ones, has been investigated. the data obtained for bases (purines and pyrimidines) were calculated as nucleic-acid equivalents (rna or dna); the imp content was calculated from the measured content of hypoxanthine. not only did cultivated plants such as cereals and pulses show a high rna-equivalent content but also vegetables such as spinach, leek, broccoli, chinese cabbage and cauliflower. we found the same r ... | 1990 | 1689090 |
| the cypovirus diadromus pulchellus rv-2 is sporadically associated with the endoparasitoid wasp d. pulchellus and modulates the defence mechanisms of pupae of the parasitized leek-moth, acrolepiopsis assectella. | diadromus pulchellus is a solitary endoparasitoid wasp that parasitizes the pupae of the leek-moth, acrolepiosis assectella (lepidoptera). hitherto, every individual d. pulchellus from france that has been investigated was infected by an orthoreovirus, dprv-1, and an ascovirus, dpav-4. recently, a new strain of d. pulchellus, established from a french field population, was found to be able to develop on leek-moth pupae, but lacked both dprv-1 and dpav-4. however, all these wasps were infected wi ... | 2003 | 12810874 |
| arbuscules of vesicular-arbuscular mycorrhizal fungi inhabit an acidic compartment within plant roots. | the most widespread type of mycorrhiza is the so-called vesicular-arbuscular mycorrhiza. in this endomycorrhiza, fungal hyphae penetrate plant cell walls in the root cortex. there they form densely branched arbuscules. fungus and plant plasma membrane are separated by a common interfacial apoplast. the ph of the compartment between the symbionts is of pivotal importance for nutrient transfer. histochemical experiments were conducted to check for an acidic nature of the interface in the model sys ... | 2000 | 10987547 |
| modification of the bile salts-irgasan-brilliant green agar for enumeration of aeromonas species from food. | the present study evaluated the productivity of bibg medium for the isolation of aeromonas spp. from food and describes a modification of the bibg medium (mbibg) (increased ph (8.7), replacement of xylose by soluble starch as a carbon source, decreased concentration of bile salts) to increase its selectivity and electivity. using the mbibg medium, growth of the majority of the enterobacteriaceae (9/10) was suppressed except for citrobacter freundii. the mbibg medium supported growth of pseudomon ... | 2000 | 10868682 |
| inhibitory effect of seven allium plants upon three aspergillus species. | antifungal activity and minimal fungicidal concentration (mfc) of extracts of garlic, bakeri garlic, chinese leek, chinese chive, scallion, onion bulb and shallot bulb against aspergillus niger, a. flavus and a. fumigatus were examined. these allium plants possessed antifungal activity, with garlic showing the lowest mfc. with the exception of scallion, the inhibitory effect of allium plants against three aspergillus species decreased with increasing incubation and heating temperature (p < 0.05) ... | 1999 | 10477070 |
| leek taint in beef carcases. | | 1991 | 2035223 |
| [antimutagenic activity of vegetable and fruit extracts against in-vitro benzo(a)pyrene]. | about 80% of the juices from twenty vegetables and fruits showed antimutagenic activity when tested in the presence of the mutagen and carcinogen benzo[a]pyrene using the ames' salmonella/microsome assay. in a standardized test system juices from raw celeriac, broccoli, red cabbage, carrots, green, peppers, lettuce, asparagus, apricots, red-currants, gooseberries, raspberries, and pineapple showed more than 50% inhibition. leek, kohlrabi, cucumber, zucchini, french beans, fennel leaves, rhubarb, ... | 1990 | 2336853 |
| [medical manuscript of mihail plamenac, a priest]. | it is known that collections of popular medical prescriptions and instructions appeared in areas without educated physicians, and all previously published manuscripts of this kind are inevitably anonymous. the reported manuscript comprises 23 pages written in sepia ink, appendixed to a prayer book published in 1747, containing popular medical instructions and prescriptions collected and practiced by orthodox priest mihailo plamenac in montenegro at the turn of the 18th century. mihailo plamenac ... | 1998 | 9525086 |
| nucleotide sequence analysis of virus isolates indicates the presence of three potyvirus species in allium plants. | cdnas of potyviruses from allium plants cultivated in different parts of the world were cloned by rt-pcr with a common primer for amplifying the 3' terminal genomic rnas of onion yellow dwarf virus (oydv), leek yellow stripe virus (lysv) and, probably, of closely related potyviruses. their nucleotide sequences bearing the viral coat protein (cp) gene and the 3' non-coding sequence were determined and compared. the degree of their sequence similarities clearly differentiated the respective viruse ... | 1998 | 9505969 |
| occupational asthma induced by garlic dust. | garlic dust has not been a frequently encountered cause of ige-mediated disease. | 1997 | 9438479 |
| porrigenins a and b, novel cytotoxic and antiproliferative sapogenins isolated from allium porrum. | four new sapogenins, porrigenins a (2a) and b (3a), identified as (25r)-5 alpha-spirostan-2 beta,3 beta,6 beta-triol and (25r)-2-oxo-5 alpha-spirostan-3 beta,6 beta-diol, respectively, and neoporrigenins a (2b) and b (3b) were also isolated from allium porrum. in addition, the known agigenin (1a) and its 25s epimer, neoagigenin (1b), were also identified. their structure elucidation was provided by comprehensive spectroscopic analyses. compounds 1a, 2a, and 3a exhibited cytotoxicity and high ant ... | 1997 | 9358643 |
| the flavonoids of leek, allium porrum. | a phytochemical investigation of the extracts obtained from bulbs of leek. allium porrum l. has led to the isolation of five flavonoid glycosides based on the kaempferol aglycone. two of them are new compounds and have been identified as kaempferol 3-o-[2-o-(trans-3-methoxy-4-hydroxycinnamoyl)-beta-d-galactopyranosyl]-(1-->4)-o-beta-d-glucopyranoside, and kaempferol 3-o-[2-o-(trans-3-methoxy-4-hydroxycinnamoyl)-beta-d-glucopyranosyl]-(1-->6)-o-beta-d-glucopyranoside, on the basis of spectroscopi ... | 2001 | 11394858 |
| in-vitro antimicrobial activity of four diallyl sulphides occurring naturally in garlic and chinese leek oils. | the in-vitro antimicrobial activity of garlic oil, chinese leek oil and four diallyl sulphides occurring naturally in these oils against staphylococcus aureus, methicillin-resistant s. aureus (mrsa), three candida spp. and three aspergillus spp. (total of 276 clinical isolates) was studied. the magnitude of activity of the four diallyl sulphides followed the order diallyl tetrasulphide > diallyl trisulphide > diallyl disulphide > diallyl monosulphide. these results suggest that disulphide bonds ... | 2001 | 11444776 |
| identification of bacteria in pasteurized zucchini purées stored at different temperatures and comparison with those found in other pasteurized vegetable purées. | one hundred nineteen isolates from a commercial zucchini purée stored at 4, 10, and 20 to 25 degrees c were fingerprinted using repetitive sequence-based pcr (rep-pcr) and classified into 35 rep types. one representative isolate of each rep type was subsequently identified by api50chb/20e profile and partial rrs gene sequence analysis. nine rep types were misidentified by the api system. strains were misidentified as being in the bacillus circulans (group 2) api taxon or in taxa with a low numbe ... | 2001 | 11571151 |
| a pilot study on anticancer activities of chinese leek. | to investigate the anticancer activities of chinese leek (allium tuberosum rottler; [cl]). | 2001 | 11719943 |
| occurrence and characterization of a dehydratase enzyme in the leek icosanoyl-coa synthase complex. | the presence of a beta-hydroxyacyl-coa dehydratase involved in the icosanoyl-coa synthase (ec 2.3.1.119) complex of leek epidermis has been demonstrated using antibodies raised against the purified beta-hydroxyacyl-coa dehydratase from rat liver. in a first step the leek icosanoyl-coa synthase activity was measured in the presence of different amounts of this antibody, the results obtained showed a 75% inhibition of the activity using a 8:1 igg/microsomal protein ratio, whereas only a weak dimin ... | 1993 | 7548117 |
| very-long-chain fatty acid biosynthesis is inhibited by cafenstrole, n,n-diethyl-3-mesitylsulfonyl-1h-1,2,4-triazole-1-carboxamide and its analogs. | the rice herbicide cafenstrole and its analogs inhibited the incorporation of [1-(14)c]-oleate and (2-(14)c]-malonate into very-long-chain fatty acids (vlcfas), using scenedesmus cells and leek microsomes from allium porrum. although the precise mode of interaction of cafenstrole at the molecular level is not completely clarified by the present study, it is concluded that cafenstrole acts as a specific inhibitor of the microsomal elongase enzyme involved in the biosynthesis of fatty acids with a ... | 2001 | 11724382 |
| isolation of lilin, a novel arginine- and glutamate-rich protein with potent antifungal and mitogenic activities from lily bulbs. | from the dried bulbs of the lily (lilium brownii), a protein with strong antifungal and mitogenic activities was isolated. it also exhibited an inhibitory action on the activity of hiv-1 reverse transcriptase. the protein was single-chained and possessed a molecular weight of 14.4 kda and an n-terminal sequence distinct from chitinases and antimicrobial proteins of garlic, leek and onion which belong to a family closely related to lily. however, there was a small degree of resemblance to cycloph ... | 2002 | 11860155 |
| characterisation of some carla- and potyviruses from bulb crops in china. brief report. | conserved carla- and potyvirus primers were used in rt-pcr to amplify virus fragments from garlic and other bulb crops in china and the fragments were subsequently sequenced and compared in phylogenetic analyses. garlic plants from henan, hubei, jiangsu, shangdong and yunnan provinces all contained at least one isolate each of garlic latent virus (genus carlavirus), onion yellow dwarf virus (oydv, genus potyvirus) and leek yellow stripe virus (lysv, genus potyvirus). the complete sequence of a z ... | 2002 | 11890533 |
| the endoplasmic reticulum-associated maize gl8 protein is a component of the acyl-coenzyme a elongase ivolved in the production of cuticular waxes. | the gl8 gene is required for the normal accumulation of cuticular waxes on maize (zea mays) seedling leaves. the predicted gl8 protein exhibits significant sequence similarity to a class of enzymes that catalyze the reduction of a ketone group to a hydroxyl group. polyclonal antibodies raised against the recombinant escherichia coli-expressed gl8 protein were used to investigate the function of this protein in planta. subcellular fractionation experiments indicate that the gl8 protein is associa ... | 2002 | 11891248 |
| differential localization of carbohydrate epitopes in plant cell walls in the presence and absence of arbuscular mycorrhizal fungi. | two monoclonal antibodies (mcabs) generated against rhamnogalacturonan i and characterized as specific for a terminal [alpha]-(1->2)-linked fucosyl-containing epitope (ccrc-m1) and for an arabinosylated [beta]-(1,6)-galactan epitope (ccrc-m7) were used in immunogold experiments to determine the distribution of the epitopes in four plants. allium porrum, zea mays, trifolium repens, and nicotiana tabacum plants were chosen as representatives of monocots and dicots with different wall structures. a ... | 1996 | 12226286 |
| effect of heavy metal contaminated shooting range soils on mycorrhizal colonization of roots and metal uptake by leek. | we grew leek (allium porrum) in soils of two shooting ranges heavily contaminated with heavy metals in the towns of zuchwil and oberuzwil in switzerland as a bioassay to test the activity of arbuscular mycorrhizal (am) fungi in these soils. soil samples were taken from (1) front of the shooting house (house), (2) the area between house and target (field) and (3) the berm (backstop). samples of ribwort plantain (plantago lanceolata) growing naturally within the shooting ranges were also collected ... | 2002 | 12413302 |
| preparation and root growth-modulatory activity of n-substituted 2-acetylamino-2-ethoxycarbonyl-3-(2-furyl)propanamides. | n-substituted 2-acetylamino-2-ethoxycarbonyl-3-(2-furyl)propanamides (8) were synthesized through the reaction of amines (13) with 2-acetylamino-2-ethoxycarbonyl-3-(2-furyl)propanoic acid (3b), which was prepared via condensation of 2-(bromomethyl)furan (10b) with diethyl acetamidomalonate, followed by partial hydrolysis of the resultant diethyl ester (3a) in the presence of barium hydroxide. however, bulky amines such as tert-butylamine or 2-trifluoromethylaniline did not afford the correspondi ... | 2001 | 11253928 |
| the association of peroxisomes with the developing cell plate in dividing onion root cells depends on actin microfilaments and myosin. | we have investigated changes in the distribution of peroxisomes through the cell cycle in onion ( allium cepa l.) root meristem cells with immunofluorescence and electron microscopy, and in leek ( allium porrum l.) epidermal cells with immunofluorescence and peroxisomal-targeted green fluorescent protein. during interphase and mitosis, peroxisomes distribute randomly throughout the cytoplasm, but beginning late in anaphase, they accumulate at the division plane. initially, peroxisomes occur with ... | 2003 | 12937986 |
| genotypic effects on glucosinolates and sensory properties of broccoli and cauliflower. | the objective of this study was to investigate the influence that the species, form or cultivar exerts on the glucosinolate spectrum for glucosinolates and free sugars in selected vegetable species of the brassica genus (brassica oleracea var. italica plenck, brassica rapa var. alboglabra and brassica oleracea var. botrytis l.). the results showed significant differences amongst the cultivar groups for the glucosinolate proportions as well as the contents of health-promoting and flavour-influenc ... | 2004 | 15053347 |
| the occurrence and composition of thrips (thysanoptera) species on leek. | the aim of the present research work was to investigate the population density and species composition of thrips infesting crops of leek in south poland. the flight activity of thrips was monitored using blue sticky traps and plant samples were taken to record the number of adult and larvae of thrips on leek. in 2004, the thrips were caught into blue sticky traps from the middle of june to the end of second decade of october. the first peak flight activity was noticed on the beginning of the thi ... | 2006 | 17385528 |
| effects of elephant garlic volatile oil (allium ampeloprasum) and t-2 toxin on murine skin. | effects of elephant garlic (allium ampeloprasum) volatile oil (gvo) and trichothecene (t-2) toxin were studied in swiss albino mice. the animals were 1) topically applied gvo, 2) topically applied t-2 toxin, 3) topically applied gvo followed by t-2 toxin (gvo/t-2), and 4) t-2 toxin application followed by gvo (t-2/gvo) on the right footpad. all animals were observed by langerhans cell enumeration and pathological changes of the footpad on days 1, 3, 5 and 7. the number of langerhans cells in the ... | 2003 | 15115108 |
| testing the efficacy of different insecticides to control onion thrips (thrips tabaci lindeman, thysanoptera, thripidae) in onion crops. | onion thrips (thrips tabaci) has become important pest in onion crops in slovenia. because it is a polyphagous species, it causes damage also in vegetable production in general (leek, cabbage, ornamentals etc.). the group of efficient insecticides for thrips control in slovenia is limited, because its misusage in the past caused the development of resistance of this pest. in 2002, eight different insecticides based on four active substances was tested in goriska region. the results of field expe ... | 2003 | 15149121 |
| in vitro inhibitory activity of chinese leek extract against campylobacter species. | three aqueous extracts of dietary materials of chinese leek (leek flower stem, soft leek and green leek) and two other reference extracts of allium plants were used to investigate the antibacterial effects against campylobacter jejuni and campylobacter coli. all the tested strains of campylobacter species were isolated from chickens. the minimum concentration of aqueous leek extracts (ales) required to inhibit the bacterial growth was 2.0 mg/ml. among the plant extracts tested, ales shared the l ... | 2004 | 15193803 |
| host-associated genetic differentiation in thrips tabaci (insecta; thysanoptera), as determined from mtdna sequence data. | we tested for host-associated genetic differentiation in 22 populations of thrips tabaci collected from tobacco and leek, respectively. clustering analyses and haplotype networks based on sequence variation at a fragment of the mitochondrial cytochrome oxidase i gene yielded three major evolutionary lineages; two were clearly associated with leek and the third with tobacco. these genetic findings corroborated recent experimental observations on the heterogeneity of t. tabaci populations with reg ... | 2004 | 15241445 |
| anaphylactic reaction to young garlic. | garlic is well known to cause contact dermatitis and asthma. however, it is a very rare cause of food allergy. we present the case of a 23-year-old woman with previous history of allergy to pollen and dried fruit, and food-dependent, exercise-induced anaphylaxis for which no specific food could be identified as responsible, who experienced an anaphylactic reaction after eating young garlic. | 1999 | 10435479 |
| agrobacterium tumefaciens-mediated transformation of leek (allium porrum) and garlic (allium sativum). | transgenic leek (allium porrum) and garlic (allium sativum) plants have been recovered by the selective culturing of immature leek and garlic embryos via agrobacterium-mediated transformation using a method similar to that described by eady et al. (plant cell rep 19:376-381, 2000) for onion transformation. this method involved the use of a binary vector containing the m-gfp-er reporter gene and nptii selectable marker, and followed the protocol developed previously for the transformation of onio ... | 2005 | 15789208 |
| a new potyvirus from thunberg fritillary (fritillaria thunbergii miq.) in zhejiang, china. | a potyvirus causing mosaic symptoms in thunberg fritillary (fritillaria thunbergii) was found at two sites in zhejiang province, china. the virus was readily mechanically transmitted to its original host but not to any of 17 other widely used plant virus indicators. a polyclonal antiserum raised to purified virus particles reacted with its homologous virus but not with a range of other viruses (including 16 potyvirus species). in electron microscopy, virus particles and inclusion bodies typical ... | 2005 | 15789262 |
| assessment of trichothecene chemotypes of fusarium culmorum occurring in europe. | fusarium trichothecenes are a group of fungal toxic metabolites whose synthesis requires the action of gene products from three different genetic loci. we evaluated, both chemically and by pcr assays, 55 isolates of fusarium culmorum from eight european countries and different host plants for their ability to produce trichothecenes. specific sequences in the tri6-tri5 intergenic region were associated with deoxynivalenol production. sequences in the tri3 gene were also associated with deoxynival ... | 2005 | 16019800 |
| glomus intraradices dominates arbuscular mycorrhizal communities in a heavy textured agricultural soil. | arbuscular mycorrhizal fungal (amf) spore communities were surveyed in a long-term field fertilization experiment in switzerland, where different amounts of phosphorus (p) were applied to soil. plots receiving no p as well as plots systematically fertilized in excess to plant needs for 31 years were used to test the hypothesis that application of p fertilizer changes the composition and diversity of amf communities. amf spores were isolated from the field soil, identified, and counted so as to q ... | 2005 | 16133255 |
| [antifungal effect in selected natural compounds and probiotics and their possible use in prophylaxis of vulvovaginitis]. | a survey of effective natural compounds and probiotics with antifungal activity and their possible use in vulvovaginitis as a prophylactic or therapeutic drug. | 2005 | 16180802 |
| sequence diversity of the nucleoprotein gene of iris yellow spot virus (genus tospovirus, family bunyaviridae) isolates from the western region of the united states. | iris yellow spot virus (iysv), a tentative virus species in the genus tospovirus and family bunyaviridae, is considered a rapidly emerging threat to onion production in the western united states (us). the present study was undertaken to determine the sequence diversity of iysv isolates from infected onion plants grown in california, colorado, idaho, oregon, utah and washington. using primers derived from the small rna of iysv, the complete sequence of the nucleoprotein (np) gene of each isolate ... | 2006 | 16320007 |
| accumulation of new polypeptides in ri t-dna-transformed roots of tomato (lycopersicon esculentum) during the development of vesicular-arbuscular mycorrhizae. | root-inducing transferred-dna (ri t-dna)-transformed roots of tomato (lycopersicon esculentum) were in vitro inoculated with surface-sterilized vesicular-arbuscular mycorrhizal leek root pieces. about 1 week after inoculation, the infection of the transformed root culture by the fungal endophyte was confirmed by photonic microscopy. total proteins were extracted from the mycorrhizal roots and analyzed by two-dimensional polyacrylamide gel electrophoresis. control gels were run with proteins extr ... | 1994 | 16349273 |
| the sapogenin atroviolacegenin and its diglycoside atroviolaceoside from allium atroviolaceum. | a phytochemical analysis of broadleaf wild leek, allium atroviolaceum, has led to the isolation of a new sapogenin, named atroviolacegenin (1, chart 1), and its diglycoside derivative, named atroviolaceoside (2), both possessing a hydroxyl group at c-27, a rare feature among sapogenins and saponins. on the basis of chemical and spectroscopic analyses, including 2d nmr spectroscopy and mass spectrometry, the structures of the new compounds were elucidated as (25r)-5alpha-spirostan-2alpha,3beta,6b ... | 2006 | 16499315 |
| hypolipidemic activity of allium porrum l. in cholesterol-fed rabbits. | allium porrum l. is a herbaceous plant from the liliaceae family and has been widely used in persian foods as a flavor component and in iranian traditional medicine as an anti-atherogenic remedy. the present investigation was undertaken to evaluate the antihypercholesterolemic effect of a hydroalcoholic extract of a. porrum l. bulbs. rabbits were divided into five groups--control, hypercholesterolemic control, and three treatment groups (hypercholesterolemic diet + 250, 500, or 1,000 mg/kg of bo ... | 2006 | 16579735 |
| occurrence and taxonomic significance of cysteine sulphoxides in the genus allium l. (alliaceae). | methiin was present in all investigated samples. in the genus allium, methiin-dominated species (rarely used by man) were common, but the occurrence of the other cysteine sulphoxides was variable and was largely correlated with use as spices or vegetables. two major chemical types (named according to the species where they occur) could be distinguished, and at least two more may be recognized. isoalliin dominates in the widely used "onion-type", which includes chive (a. schoenoprasum) and top on ... | 2006 | 16626766 |
| signum, a new fungicide for control of leaf diseases in outdoor vegetables. | during three years, the new fungicide signum, containing 6.7% pyraclostrobine + 26.7 % boscalid and developed by basf. has been evaluated in leek, carrots and cabbages in several outdoor field experiments under practical conditions and during one year in outdoor lettuce. in leek, phytophthora porri is one of the major leaf diseases causing lesions on differ ent places on the leaves, resulting in at least extra labour costs for trimming or even worse sometimes resulting in complete crop loss. so ... | 2005 | 16637178 |
| food experience on the predatory behavior of the ant myrmica rubra towards a specialist moth, acrolepiopsis assectella. | entomophagous insects are often repelled by the secondary compounds of the plants eaten by their prey. these compounds, therefore, take on a defensive role for the phytophagous species that sequester them. given that numerous entomophagous species are capable of learning, the effects on the foraging behavior of a repeated experience were investigated in the predatory ant myrmica rubra. the sulfur amino acids methyl-cysteine sulfoxide (mcso) and propyl-cysteine sulfoxide (pcso) produced by allium ... | 2002 | 12523570 |
| beta-ketoacyl-acyl carrier protein synthase iii from pea (pisum sativum l.): properties, inhibition by a novel thiolactomycin analogue and isolation of a cdna clone encoding the enzyme. | a beta-ketoacyl-acyl carrier protein (acp) synthase iii (kas iii; short-chain condensing enzyme) has been partly purified from pea leaves. the enzyme, which had acetyl-coa:acp acyltransferase (acat) activity, was resolved from a second, specific, acat protein. the kas iii enzyme had a derived molecular mass of 42 kda (from its cdna sequence) and operated as a dimer. its enzymological characteristics were similar to those of two other plant kas iii enzymes except for its inhibition by thiolactomy ... | 2003 | 12624762 |
| assessment of essential and toxic elements in some kinds of vegetables. | vegetables provide the human body with the essential bioavailable trace elements, and a constant supply of these various elements is necessary and highly recommended for daily life. minor elements such as ca, fe, k, mg, and na as well as trace elements such as cd, co, cu, mn, ni, pb, and zn were determined using an atomic absorption spectrophotometer in 12 different species of vegetables from saudi arabia (the al-taif district). these vegetables were cucumber, vegetable marrow, tomato, potato, g ... | 2003 | 12798758 |
| translocation of crohn's disease escherichia coli across m-cells: contrasting effects of soluble plant fibres and emulsifiers. | crohn's disease is common in developed nations where the typical diet is low in fibre and high in processed food. primary lesions overlie peyer's patches and colonic lymphoid follicles where bacterial invasion through m-cells occurs. we have assessed the effect of soluble non-starch polysaccharide (nsp) and food emulsifiers on translocation of escherichia coli across m-cells. | 2010 | 20813719 |
| development of a toxic bait for control of eastern lubber grasshopper (orthoptera: acrididae). | this study assessed baits for eastern lubber grasshopper, romalea guttata (houttuyn). when offered a choice among several grain-based baits (rolled oats, wheat bran, oat bran, yeast, corn meal, cornflakes) and vegetable oils (canola, corn, peanut, soybean), eastern lubber grasshopper adults preferred bait consisting of wheat bran carrier with corn oil as an added phagostimulant. other carriers were accepted but consumed less frequently. discrimination by eastern lubber grasshoppers among oils wa ... | 2003 | 12852592 |
| flies (diptera: muscidae: calliphoridae) are efficient pollinators of allium ampeloprasum l. (alliaceae) in field cages. | in conjunction with efforts to identify efficient insect pollinators for seed multiplication of cross-pollinated plant species stored and maintained by usda-ars western regional plant introduction station (wrpis), experiments were conducted to assess and compare the efficiency of the house fly, musca domestica l. (diptera: muscidae), and calliphora vicina robineau-desvoidy (diptera: calliphoridae), and different densities of each fly species, to pollinate leek, allium ampeloprasum l., plant inve ... | 2007 | 17370820 |
| identification and sequence analysis of potyviruses infecting crops in vietnam. | fifty-two virus isolates from 13 distinct potyvirus species infecting crops in vietnam were identified and the 3' region of each genome was sequenced. the viruses were: bean common mosaic virus (bcmv), potato virus y (pvy), sugarcane mosaic virus (scmv), sorghum mosaic virus (srmv), chilli veinal mottle virus (chivmv), zucchini yellow mosaic virus (zymv), leek yellow stripe virus (lymv), shallot yellow stripe virus (sysv), onion yellow dwarf virus (oydv), turnip mosaic virus (tumv), dasheen mosa ... | 2008 | 17906829 |
| coat protein gene sequences of garlic and onion isolates of the onion yellow dwarf potyvirus (oydv). | partial genomic sequences from an unknown garlic potyvirus and from an onion isolate of the onion yellow dwarf potyvirus (oydv) were obtained. comparison of the deduced amino acid sequences showed a similarity of 88% between the respective viral coat proteins. the garlic potyvirus coat protein was expressed in e. coli cells, purified, and subjected to western blot analysis using antibodies raised against different garlic-infecting viruses. the expression protein was consistently recognised by an ... | 1996 | 9526536 |
| heavy metals in selected edible vegetables and estimation of their daily intake in sanandaj, iran. | the levels of four different heavy metals [cadmium (cd), lead (pb), chromium (cr) and copper (cu)] were determined in various vegetables [leek (allium ampeloprasum), sweet basil (ocimum basilicum), parsley (petroselinum crispum), garden cress (lepidium sativum) and tarragon (artemisia dracunculus)] cultivated around sanandaj city. the contributions of the vegetables to the daily intake of heavy metals from vegetables were investigated. one hundred samples (20 samples per month) were collected fo ... | 2008 | 18564723 |
| polyphasic characterization of xanthomonas axonopodis pv. allii associated with outbreaks of bacterial blight on three allium species in the mascarene archipelago. | based on the number of new reports during the last two decades, bacterial blight of onion (allium cepa) is considered an emerging disease. the causal agent, xanthomonas axonopodis pv. allii, is pathogenic to several allium species after inoculation, but outbreaks worldwide have been primarily reported on onion. we describe a unique epidemiological situation in réunion island, france, with concomitant outbreaks on three allium species, onion, leek (a. porrum), and garlic (a. sativum). there was n ... | 2008 | 18943210 |
| a chemo attractant in onion root exudates recognized by ditylenchus dipsaci in laboratory bioassay. | abstract a quantitative bioassay that translates preferences of axenically cultured and field population of ditylenchus dipsaci, observed in vitro, into relative attractiveness of sterile root exudates preparations and their components is described. onion (allium cepa cv. white lisbon) root exudates (ore) are consistently and significantly much more attractive than the buffer control in all these assays. exudates from oat cv. lodi, mustard cv. albatross and tomato cv. rehovot 13 are significantl ... | 2003 | 18944166 |
| the efficiency by which thrips tabaci populations transmit tomato spotted wilt virus depends on their host preference and reproductive strategy. | abstract arrhenotokous and thelytokous populations of thrips tabaci from tobacco or leek plants were evaluated for their ability to transmit tomato spotted wilt virus (tswv) and for their host preference. transmission efficiencies were comparatively studied using leaf disks of petunia hybrida, datura stramonium, and nicotiana tabacum cv. basmas. adults of arrhenotokous populations collected on infected tobacco plants in the field were efficient transmitters (up to 48.5% transmission) and remaine ... | 2002 | 18944256 |
| further evidence that shallot yellow stripe virus (sysv) is a distinct potyvirus and reidentification of welsh onion yellow stripe virus as a sysv strain. | abstract an antiserum to shallot yellow stripe virus (sysv) was raised and used in combination with a range of other antisera to potyviruses of allium spp. in electron microscopic decoration experiments. the serological results corroborated an earlier finding that the type isolates of sysv and welsh onion yellow stripe virus (woysv) are closely related to each other and only distantly related to onion yellow dwarf (oydv) and leek yellow stripe (lysv) viruses, the two other major potyviruses infe ... | 1999 | 18944789 |
| description of the bacterium causing blight of leek as pseudomonas syringae pv. porri (pv. nov.). | abstract forty bacterial strains isolated from leek blight (allium porrum) in france and other countries were studied by conventional biochemical methods, serological reactions, numerical taxonomy, dna-dna hybridization, and ice nucleation activity, as well as by pathogenicity on leek and other host plants. they were compared with reference strains of pseudomonas, mainly pathotype strains of p. syringae pathovars and strains of p. syringae pv. syringae isolated from various host plants including ... | 1998 | 18944892 |
| degradation of proteins by enzymes exuded by allium porrum roots - a potentially important strategy for acquiring organic nitrogen by plants. | nitrogen is one of the crucial elements that regulate plant growth and development. it is well-established that plants can acquire nitrogen from soil in the form of low-molecular-mass compounds, namely nitrate and ammonium, but also as amino acids. nevertheless, nitrogen in the soil occurs mainly as proteins or proteins complexed with other organic compounds. proteins are believed not to be available to plants. however, there is increasing evidence to suggest that plants can actively participate ... | 2009 | 19540770 |
| molecular components required for the targeting of pex7 to peroxisomes in arabidopsis thaliana. | pex7 is a soluble import receptor that recognizes peroxisomal targeting signal type 2 (pts2)-containing proteins. in the present study, using a green fluorescent protein (gfp) fusion protein of pex7 (gfp-pex7), we analyzed the molecular function and subcellular localization of pex7 in arabidopsis thaliana. the overexpression of gfp-pex7 resulted in defective glyoxysomal fatty acid beta-oxidation, but had no significant effect on leaf peroxisomal function. analysis of the subcellular localization ... | 2009 | 19594707 |
| can leek interfere with bean plant-bean fly interaction? test of ecological pest management in mixed cropping. | effects of volatile odors from leek, allium porum l., on the behavior of bean fly, ophiomyia phaseoli (tryon) (diptera: agromyzidae), were tested in laboratory olfactometer bioassays. aqueous and solvent extracts (dichloromethane and methanol) of leek were repellent to adult flies. whole leek plants were repellent and prevented attraction to the host plant, beans. beans that had been exposed to volatiles from living leek plants for 7 d became repellent to the fly. leek and several other crops we ... | 2009 | 19610413 |
| development of a short oligonucleotide microarray for the detection and identification of multiple potyviruses. | the genus potyvirus is the largest and one of the most economically important virus genera infecting plants. however, current diagnostic techniques are limited in their ability to identify multiple potyvirus infections. an assay that can identify multiple potyviruses simultaneously, with good specificity and sensitivity, is therefore highly desirable. to determine the feasibility of simultaneous detection of multiple potyviruses a 25-mer oligonucleotide microarray was developed targeting four di ... | 2009 | 19654025 |
| characterization of the key aroma compounds in beef and pork vegetable gravies á la chef by application of the aroma extract dilution analysis. | by application of the aroma extract dilution analysis (aeda) on an aroma distillate isolated from a freshly prepared, stewed beef/vegetable gravy, 52 odor-active compounds were detected in the flavor dilution (fd) factor range of 4-4096. on the basis of high fd factors in combination with the results of the identification experiments, 3-(methylthio)propanal (cooked potato), 3-mercapto-2-methylpentan-1-ol (gravy-like), (e,e)-2,4-decadienal (deep-fried, fatty), 3-hydroxy-4,5-dimethyl-2(5h)-furanon ... | 2009 | 19807161 |
| molecular characterisation of a complex mixture of viruses in garlic with mosaic symptoms in china. | degenerate primers were used to detect and amplify cdna of viruses of the genera carlavirus, allexivirus and potyvirus from garlic plants with mosaic symptoms growing in zhejiang province, china. plants contained a complex mixture of viruses and strains. three distinct stains of garlic latent virus were detected; the most frequent one was completely sequenced and partial sequences were obtained for the other two. the complete sequence (8363 nt) was 76.4% identical to a korean isolate. two allexi ... | 2001 | 11722009 |
| dietary fibre degradation and fermentation by two xylanolytic bacteria bacteroides xylanisolvens xb1a and roseburia intestinalis xb6b4 from the human intestine. | to characterize fibre degradation, colonization and fermentation, and xylanase activity of two xylanolytic bacteria bacteroides xylanisolvens xb1a(t) and roseburia intestinalis xb6b4 from the human colon. | 2010 | 20105245 |
| prevalence of parasitic contamination of raw vegetables in villages of qazvin province, iran. | we conducted a study to determine the extent of parasitic contamination of raw vegetables distributed by wholesalers in villages of qazvin province, iran. vegetables collected for the study were leek, parsley, lettuce, coriander, radish, spring onion, tarragon, basil, spearmint, and cress. samples of each vegetable were collected at monthly intervals for 6 months from may to october 2008, yielding a total of 654 samples. samples of each vegetable collected at each monthly interval were selected ... | 2010 | 20491596 |
| isolation and morphological and metabolic characterization of common endophytes in annually burned tallgrass prairie. | dark septate endophytes (dse) are common and abundant root-colonizing fungi in the native tallgrass prairie. to characterize dse fungi were isolated from roots of mixed tallgrass prairie plant communities. isolates were grouped according to morphology, and the grouping was refined by its-rflp and/or sequencing of the its region. sporulating species of periconia, fusarium, microdochium and aspergillus were isolated along with many sterile fungi. leek resynthesis was used to quickly screen for dse ... | 2010 | 20648749 |
| a single amino acid substitution in highly similar endo-pgs from fusarium verticillioides and related fusarium species affects pgip inhibition. | endo-polygalacturonase (pg) may be a critical virulence factor secreted by several fungi upon plant invasion. the single-copy gene encoding pg in fusarium verticillioides and in eight other species of the gibberella fujikuroi complex (f. sacchari, f. fujikuroi, f. proliferatum, f. subglutinans, f. thapsinum, f. nygamai, f. circinatum, and f. anthophilum) was functionally analyzed in this paper. both the nucleotide and amino acid sequences were highly similar among the 12 strains of f. verticilli ... | 2008 | 18171630 |
| phosphorylation of h2ax histones in response to double-strand breaks and induction of premature chromatin condensation in hydroxyurea-treated root meristem cells of raphanus sativus, vicia faba, and allium porrum. | histone h2a variant h2ax is rapidly phosphorylated on the induction of dna double-strand breaks by ionizing radiation and hydroxyurea-mediated replication arrest, resulting in the formation of gamma-h2ax foci along megabase chromatin domains nearby the sites of incurred dna damage. in an attempt to establish a relationship between species-specific nuclear architecture and h2ax phosphorylation in s/g(2) phase-arrested root meristem cells, immunocytochemical comparisons using an antibody raised ag ... | 2007 | 17111099 |
| galactolipids as potential health promoting compounds in vegetable foods. | galactolipids are a class of compounds widely found in the plant kingdom, including edible plants, and are an important part of the cell membranes. galactolipids in plants consists mainly of monogalactosyldiacylglycerols and digalactosyldiacylglycerols containing one or two saturated and/or unsaturated fatty acids linked to the glycerol moiety. several galactolipids have been shown to possess in vitro and/or in vivo anti-tumor promoting activity and anti-inflammatory activity. recently, it has b ... | 2009 | 20653526 |
| real-time pcr detection of holophagae (acidobacteria) and verrucomicrobia subdivision 1 groups in bulk and leek (allium porrum) rhizosphere soils. | in the light of the poor culturability of acidobacteria and verrucomicrobia species, group-specific real-time (qpcr) systems were developed based on the 16s rrna gene sequences from culturable representatives of both groups. the number of dna targets from three different groups, i.e. holophagae (acidobacteria group 8) and luteolibacter/prosthecobacter and unclassified verrucomicrobiaceae subdivision 1, was determined in dna extracts from different leek (allium porrum) rhizosphere soil compartmen ... | 2010 | 20801169 |
| molecular characterization of czech and chinese leek yellow stripe virus isolates from garlic. | using an rt-pcr specific for nuclear inclusion b (nib) and coat protein (cp) genes of leek yellow stripe virus (lysv) we detected two czech (lysv-5cz and lysv-22cz) and one chinese (lysv-16) isolate of lysv in garlic plants. the rt-pcr products were cloned and sequenced. phylogenetic analysis based on deduced amino acid sequence of nib-cp region placed the czech isolates in the group i and the chinese isolate in the group ii of lysv. | 2006 | 17131941 |
| sandaracinus amylolyticus gen. nov., sp. nov., a starch degrading soil myxobacterium and the description of sandaracinaceae fam. nov. | a novel starch-degrading myxobacterium designated as noso-4t (new organism of the sorangiineae strain 4) was isolated in 1995 from a soil sample containing plant residues, collected in lucknow, uttar pradesh, india. the novel bacterium shows typical myxobacterial characteristics such as gram-negative rod vegetative cells, swarming colony, fruiting body-like aggregates, and bacteriolytic activity. the strain is mesophilic, strictly aerobic, and chemoheterotrophic. based on 16s rrna gene sequence, ... | 2011 | 21742821 |
| effect of leek and onion on processing and quality characteristics of greek traditional sausages. | the objective of this study was to investigate the effect of leek and onion on processing and quality characteristics of sausages and select the most appropriate, to determine the optimum level of selected vegetable and to improve its effectiveness on quality characteristics of sausages, in comparison to the addition of nitrites (100 ppm), by using a starter culture of staphylococcus carnosus and ascorbate. the nitrate content of leek ranged from 213 to 255 ppm and that of onion was 79 ppm. saus ... | 2004 | 22062225 |
| hypoglycemic activity and antioxidant potential of some medicinal plants traditionally used in turkey for diabetes. | cydonia oblonga mill. (rosaceae) leaves, helianthus tuberosus l. (asteraceae) tubers, and allium porrum l. (liliaceae) bulbs are used as a folk remedy for the treatment of diabetes and they are also consumed as food in turkey. in the present study, the antidiabetic and antioxidant activities of the ethanol extracts of these plants were studied in normal and streptozotocin-induced diabetic rats for 5 days. all extracts were administrated orally to rats at the doses of 250 and 500 mg/kg. blood glu ... | 2010 | 20100559 |
| [cyclooxygenase inhibitors in some dietary vegetables inhibit platelet aggregation function induced by arachidonic acid]. | the study was purposed to investigate whether the cyclooxygenase inhibitors from some dietary vegetables can inhibit platelet aggregation function by the arachidonic acid (aa). the vegetable juice was mixed with plateletrich plasma (prp), and asprin was used as positive control. the maximum ratio of platelet aggregation induced by aa was measured on the aggregometer; heme and cyclooxygenase-1 (cox(1)) or cyclooxygenase-2 (cox(2)) were added to test tubes containing cox reaction buffer, the mixtu ... | 2011 | 22040984 |
| application of low magnetic field on inulinase production by geotrichum candidum under solid state fermentation using leek as substrate. | this study evaluates the application of low magnetic field (lmf) on inulinase enzyme production by geotrichum candidum under solid state fermentation (ssf) using leek as potential carbon source. first, the fermentation conditions were optimized using normal magnetic field grown microorganism. among eight g. candidum isolates, the most effective strain called g. candidum oc-7 was selected to use in further experiments. in the second part of the study, ssf was carried out under different lmfs (4 a ... | 2011 | 22075689 |
| nature of the reaction product of [1-14c]stearoyl-coa elongation by etiolated leek seeding microsomes. | the elongation of [1-14c]stearoyl-coa by microsomes from etiolated leek seedlings, in the presence of malonyl-coa and nadph, has been studied at different substrate and enzyme concentrations. the hptlc analysis of the whole reaction mixture, followed by the analysis of the label in the fatty acid methyl esters of long-chain acyl-coas, phosphatidylcholine (pc), and neutral lipids, showed that the acyl-coa fraction contained most of the labeled very-long-chain fatty acids. the very-long-chain fatt ... | 2014 | 4004258 |
| the rhizosphere selects for particular groups of acidobacteria and verrucomicrobia. | there is a lack in our current understanding on the putative interactions of species of the phyla of acidobacteria and verrucomicrobia with plants. moreover, progress in this area is seriously hampered by the recalcitrance of members of these phyla to grow as pure cultures. the purpose of this study was to investigate whether particular members of acidobacteria and verrucomicrobia are avid colonizers of the rhizosphere. based on previous work, rhizosphere competence was demonstrated for the verr ... | 2013 | 24349285 |
| salmonella and escherichia coli o157:h7 survival in soil and translocation into leeks (allium porrum) as influenced by an arbuscular mycorrhizal fungus (glomus intraradices). | a study was conducted to determine the influence of arbuscular mycorrhizal (am) fungi on salmonella and enterohemorrhagic escherichia coli o157:h7 (ehec) in autoclaved soil and translocation into leek plants. six-week-old leek plants (with [myc+] or without [myc-] am fungi) were inoculated with composite suspensions of salmonella or ehec at ca. 8.2 log cfu/plant into soil. soil, root, and shoot samples were analyzed for pathogens on days 1, 8, 15, and 22 postinoculation. initial populations (day ... | 2013 | 23315740 |
| characterization of novel bacteriophages for biocontrol of bacterial blight in leek caused by pseudomonas syringae pv. porri. | pseudomonas syringae pv. porri, the causative agent of bacterial blight in leek (allium porrum), is increasingly frequent causing problems in leek cultivation. because of the current lack of control measures, novel bacteriophages were isolated to control this pathogen using phage therapy. five novel phages were isolated from infected fields in flanders (vb_psym_kil1, vb_psym_kil2, vb_psym_kil3, vb_psym_kil4, and vb_psym_kil5), and were complemented with one selected host range mutant phage (vb_p ... | 2016 | 27014204 |
| the intercropping partner affects arbuscular mycorrhizal fungi and fusarium oxysporum f. sp. lycopersici interactions in tomato. | arbuscular mycorrhizal fungi (amf) and their bioprotective aspects are of great interest in the context of sustainable agriculture. combining the benefits of amf with the utilisation of plant species diversity shows great promise for the management of plant diseases in environmentally compatible agriculture. in the present study, amf were tested against fusarium oxysporum f. sp. lycopersici with tomato intercropped with either leek, cucumber, basil, fennel or tomato itself. arbuscular mycorrhiza ... | 2013 | 23549903 |
| control of fusarium wilt in banana with chinese leek. | the inhibitory effects of chinese leek(allium tuberosum) on fusarium oxysporum f. sp. cubense (foc) and on fusarium wilt incidence were studied in order to identify a potential efficient way to control the disease. adopting the rotation system of chinese leek-banana reduced the fusarium wilt incidence and disease severity index by 88 %-97 % and 91 %-96 %, respectively, improved the crop value by 36 %-86 %, in an area heavily infested by foc between 2007 and 2009. as a result of inoculation in th ... | 2012 | 23144534 |
| mutualism-parasitism paradigm synthesized from results of root-endophyte models. | plant tissues host a variety of fungi. one important group is the dark septate endophytes (dses) that colonize plant roots and form characteristic intracellular structures - melanized hyphae and microsclerotia. the dse associations are common and frequently observed in various biomes and plant taxa. reviews suggest that the proportion of plant species colonized by dse equal that colonized by am and microscopic studies show that the proportion of the root system colonized by fungi dse can equal, ... | 2014 | 25628615 |
| parasitic contamination of commonly consumed fresh leafy vegetables in benha, egypt. | this study evaluated the degree of parasitic contamination of vegetables which are commercialized and consumed fresh in benha, egypt. it included 530 vegetables: lettuce, watercress, parsley, green onion, and leek. vegetables were collected randomly from markets within benha. samples were washed in saline, and the resulting washing solution was filtered and centrifuged to concentrate the parasitic stages. sediments and supernatants were examined by iodine and modified ziehl-neelsen stained smear ... | 2014 | 25024845 |
| spirostane, furostane and cholestane saponins from persian leek with antifungal activity. | a phytochemical investigation of the seeds of persian leek afforded the isolation of two new spirostane glycosides, persicosides a (1) and b (2), four new furostane glycosides, isolated as a couple of inseparable mixture, persicosides c1/c2 (3a/3b) and d1/d2 (4a/4b), one cholestane glycoside, persicoside e (5), together with the furostane glycosides ceposides a1/a2 and c1/c2 (6a/6b and 7a/7b), tropeosides a1/a2 and b1/b2 (8a/8b and 9a/9b), and ascalonicoside a1/a2 (10a/10b), already described in ... | 2013 | 23790946 |