PMID(sorted ascending)
annulate lamellae in phloem cells of virus-infected sonchus plants.the occurrence of annulate lamellae (al) in differentiating phloem of sonchus oleraceus (compositae) singly infected with sowthistle yellow vein virus (syvv) and doubly infected with a combination of syvv and beet yellow stunt virus is documented by electron microscopy. cell types in which al were found were immature sieve elements and phloem parenchyma cells. al were found only in cells that also contained syvv particles although a direct association between the virus and al was not apparent. t ...1977873998
[comparative studies by the electron microscope of rhabdoviruses of plant and of animal origin. ii. investigations by electron microscopy and by cytological methods of the host plant sonchus oleraceus (l.) and the vector hyperomyzus lactucae (l.) after infection with the sowthistle yellow vein virus (syvv)]. 19734147403
beet yellow stunt virus in the phloem of sonchus oleraceus l. 19816268801
estimation of base temperatures for nine weed species.experiments were conducted to test several methods for estimating low temperature thresholds for seed germination. temperature responses of nine weeds common in annual agroecosystems were assessed in temperature gradient experiments. species included summer annuals (amaranthus albus, a. palmeri, digitaria sanguinalis, echinochloa crus-galli, portulaca oleracea, and setaria glauca), winter annuals (hirschfeldia incana and sonchus oleraceus), and conyza canadensis, which is classified as a summer ...200010938833
the response of some common egyptian plants to ozone and their use as biomonitors.relative sensitivity of five common egyptian plant species namely, senecio vulgaris, malva parviflora, sonchus oleraceus, medicago sativa and melilotus indicus to elevated levels of ozone has been studied. the plants were exposed to charcoal filtered air (cfa) and different levels of o3 (50 and 100 ppb) for 5 h per day. the studied parameters were recorded for five consecutive days after fumigation. the foliar injury varied significantly among species in a dose-dependent manner. severe injury sy ...200312758022
radical scavenging and iron-chelating activities of some greens used as traditional dishes in mediterranean diet.this study aimed at evaluating the antioxidative activity of nine different families of greens. raphanus raphanistrum (wild radish), anchusa azurea (bugloss), daucus carota (wild carrot), sonchus oleraceus (sowthistle), papaver rhoeas (corn poppy), malva sylvestris (blue mallow), foeniculum vulgare (fennel), cichorium intybus (chicory) and salicornia europaea (jointed glasswort) are native to the mediterranean and are commonly consumed as a salad or an ingredient in some recipes. the antioxidati ...200414630594
antioxidant properties of mediterranean food plant extracts: geographical differences.locally grown, wild food plants seasonally contribute a considerable portion of the daily diet in certain mediterranean areas and it has been suggested that the beneficial effects of the mediterranean diet on human health partly originate from the antioxidant effect of flavonoid-rich food plants. the nutrient content of most wild plants is higher than that of cultivated ones and may vary depending on the prevailing environmental conditions. accordingly, three local mediterranean plant foods (i.e ...200515800389
phytoextract-induced developmental deformities in malaria vector.larvicidal potential of petroleum ether (pee), carbon tetrachloride (cte) and methanol extract (mee) of artemisia annua, chenopodium album and sonchus oleraceus was observed against malaria vector, anopheles stephensi liston. the pee of a. annua with lc50 16.85 ppm after 24 h and 11.45 ppm after 48 h of treatment was found most effective, followed by cte of a. annua and ch. album, pee of ch. album and mee of a. annua. however, no significant larvicidal activity was observed in mee of ch. album a ...200616356712
tillage and residue burning affects weed populations and seed integrated weed management approach requires alternative management practices to herbicide use such as tillage, crop rotations and cultural controls to reduce soil weed seed banks. the objective of this study was to examine the value of different tillage practices and stubble burning to exhaust the seed bank of common weeds from the northern grain region of australia. five tillage and burning treatments were incorporated in a field experiment, at armidale (30 degrees 30's, 151 degrees 40'e), ...200617390813
[determination of inorganic elements in different parts of sonchus oleraceus l by flame atomic absorption spectrometry].flame atomic absorption spectrometry with air-acetylene flame was used for the determination of inorganic metal elements in different parts ( flower, leaf, stem and root) of sonchus oleraceus l. the contents of ca, mg, k, na, fe, mn, cu, zn, cr, co, ni, pb and cd in the flower, leaf, stem and root of sonchus oleraceus l were compared. the order from high to low of the additive weight (microg x g(-1)) for the 13 kinds of metal elements is as follows: leaf (77 213.72) > flower (47 927.15) > stem(4 ...200717763800
a canopy architectural model to study the competitive ability of chickpea with sowthistle.improving the competitive ability of crops is a sustainable method of weed management. this paper shows how a virtual plant model of competition between chickpea (cicer arietinum) and sowthistle (sonchus oleraceus) can be used as a framework for discovering and/or developing more competitive chickpea cultivars.200818375962
beet yellow stunt virus in cells of sonchus oleraceus l. and its relation to host sonchus oleraceus l. (asteraceae) infected with the beet yellow stunt virus (bysv) the virions are found in phloem cells, including the sieve elements. in parenchymatous phloem cells, the virus is present mainly in the cytoplasm. in some parenchymatous cells, containing massive accumulations of virus, the flexuous rodlike virus particles are found partly inserted into mitochondrial cristae. the mitochondrial envelope is absent where virus is present in the cristae. a similar relation between ...197918631608
evaluation of the antinociceptive activity of extracts of sonchus oleraceus l. in mice.sonchus oleraceus l. has been used to relieve pain in brazilian folk medicine.200919397974
anxiolytic-like effect of sonchus oleraceus l. in mice.sonchus oleraceus l. has been used as a general tonic in brazilian folk medicine. nevertheless, available scientific information regarding this species is scarce; there are no reports related to its possible effect on the central nervous system.200919397983
paenibacillus sonchi sp. nov., a nitrogen-fixing species isolated from the rhizosphere of sonchus oleraceus.a nitrogen-fixing bacterium, designated strain x19-5(t), was isolated from rhizosphere soil of sonchus oleraceus. phylogenetic analysis based on a fragment of the nifh gene and the full-length 16s rrna gene sequence revealed that strain x19-5(t) was a member of the genus paenibacillus. strain x19-5(t) showed the highest 16s rrna gene sequence similarity (98.8 %) with paenibacillus graminis rsa19(t) and below 97 % similarity with other recognized members of the genus. the level of dna-dna related ...200919625436
microbial growth and quorum sensing antagonist activities of herbal plants extracts.antimicrobial and antiquorum sensing (aqs) activities of fourteen ethanolic extracts of different parts of eight plants were screened against four gram-positive, five gram-negative bacteria and four fungi. depending on the plant part extract used and the test microorganism, variable activities were recorded at 3 mg per disc. among the grampositive bacteria tested, for example, activities of laurus nobilis bark extract ranged between a 9.5 mm inhibition zone against bacillus subtilis up to a 25 m ...200919783935
anti-inflammatory and antipyretic effects of sonchus oleraceus in rats.sonchus oleraceus l. has been used to relieve headaches, general pain, hepatitis, infections, inflammation and rheumatism in brazilian folk medicine. nevertheless, scientific information regarding this species is scarce; there are no reports related to its possible anti-inflammatory effects.201019962434
antidepressant-like activity of sonchus oleraceus in mouse models of immobility tests.the aim of the present work is to evaluate the putative antidepressant-like effects of hydroethanolic and dichloromethanic extracts from the aerial parts of sonchus oleraceus (family asteraceae) on the performance of male mice in the forced swimming test (fst) and tail suspension test (tst) models predictive of depression. the hydroethanolic and dichloromethanic extracts, both in doses of 30, 100, and 300 mg/kg, were orally administered 1 hour before carrying out the fst or the tst. the immobili ...201020136459
new remarkable records of microfungi from sardinia (italy).in june 2009 we organized a botanical student excursion to the eastern part of sardinia, italy. on this occasion we were able to collect and identify over 80 species of microfungi growing on higher plants. the collecting sites were spread over a large area, among them were la caletta, capo comino, monte albo, cala gonone, monte maccione, san teodoro, capo testa. the collected microfungi were parasitic or saprophytic; basidiomycotina (uredinales), ascomycotina and deuteromycotina (hyphomycetes, c ...201021534478
antioxidant and antibacterial activity of six edible wild plants (sonchus spp.) in china.the total phenolic and flavonoid, antioxidant and antibacterial activities of six sonchus wild vegetables (sonchus oleraceus l., sonchus arvensis l., sonchus asper (l.) hill., sonchus uliginosus m.b., sonchus brachyotus dc. and sonchus lingianus shih) in china were investigated. the results revealed that s. arvensis extract and s. oleraceus extract contained the highest amount of phenolic and flavonoid, respectively. among the methanol extracts of six sonchus species, s. arvensis extract exhibit ...201121793765
antioxidant activity of puha (sonchus oleraceus l.) as assessed by the cellular antioxidant activity (caa) assay.there is considerable interest in antioxidant dietary components that can be protective against degenerative diseases in humans. puha (sonchus oleraceus l.) is a rich source of polyphenols, and exhibits strong antioxidant activity as measured by the 2,2-diphenylpicrylhydrazyl (dpph) assay. however, the potential of puha to protect against degenerative diseases requires that low molecular weight antioxidants (lmwa) are absorbed by, and active in, human cells. the cellular antioxidant activity (ca ...201121928279
wild vegetable mixes sold in the markets of dalmatia (southern croatia).dalmatia is an interesting place to study the use of wild greens as it lies at the intersection of influence of slavs, who do not usually use many species of wild greens, and mediterranean culinary culture, where the use of multiple wild greens is common. the aim of the study was to document the mixtures of wild green vegetables which are sold in all the vegetable markets of dalmatia.201323286393
perceived health properties of wild and cultivated food plants in local and popular traditions of italy: a review.many wild and cultivated plants are rich in mineral elements and bioactive compounds and are consumed for health purposes. studies have demonstrated the curative properties of many of these food plants. in this paper, we discuss the properties of several plants with potential health benefits that have previously received little attention.201323395624
plant-based medicines for anxiety disorders, part 1: a review of preclinical studies.research in the area of herbal psychopharmacology has revealed a variety of promising medicines that may provide benefit in the treatment of general anxiety and specific anxiety disorders. however, a comprehensive review of plant-based anxiolytics has been absent to date. this article (part 1) reviews herbal medicines for which only preclinical investigations for anxiolytic activity have been performed. in part 2, we review herbal medicines for which there have been clinical investigations for a ...201323436255
weed vegetation ecology of arable land in salalah, southern oman.this paper applies multivariate statistical methods to a data set of weed relevés from arable fields in two different habitat types of coastal and mountainous escarpments in southern oman. the objectives were to test the effect of environmental gradients, crop plants and time on weed species composition, to rank the importance of these particular factors, and to describe the patterns of species composition and diversity associated with these factors. through the application of twinspan, dca and ...201323961246
rapid and sensitive ultrasonic-assisted derivatisation microextraction (udme) technique for bitter taste-free amino acids (faa) study by hplc-fld.amino acids, as the main contributors to taste, are usually found in relatively high levels in bitter foods. in this work, we focused on seeking a rapid, sensitive and simple method to determine faa for large batches of micro-samples and to explore the relationship between faa and bitterness. overall condition optimisation indicated that the new udme technique offered higher derivatisation yields and extraction efficiencies than traditional methods. only 35min was needed in the whole operation p ...201424054218
biotechnological potential of endophytic actinomycetes associated with asteraceae plants: isolation, biodiversity and bioactivities.endophytic actinomycetes from five asteraceae plants were isolated and evaluated for their bioactivities. from parthenium hysterophorus, ageratum conyzoides, sonchus oleraceus, sonchus asper and hieracium canadense, 42, 45, 90, 3, and 2 isolates, respectively, were obtained. of the isolates, 86 (47.2 %) showed antimicrobial activity. majority of the isolates were recovered from the roots (n = 127, 69.7 %). the dominant genus was streptomyces (n = 96, 52.7 %), while amycolatopsis, pseudonocardia, ...201424375232
antihyperglycemic effect of crude extracts of some egyptian plants and algae.diabetes mellitus is a major global health problem. various plant extracts have proven antidiabetic activity and are considered as promising substitution for antidiabetic drugs. the antihyperglycemic effect of 16 plants and 4 algae, commonly used in egypt for the treatment of diabetes mellitus, was investigated. a diabetes model was induced by intraperitoneal injection of nicotinamide (120 mg/kg body weight [b.wt.]), then streptozotocin (200 mg/kg b.wt.) after 15 min. hydroethanolic extracts (80 ...201424404976
effect of traditional leafy vegetables on the growth of lactobacilli and bifidobacteria.traditional leafy vegetables, apart from being a staple in the diet of most of sub-saharan africa, are an essential part of traditional medicine and are used daily by traditional healers in the region to treat a wide variety of ailments. in this study, a batch culture technique was used to investigate whether 25 infusions from 22 traditional leafy vegetables stimulated the growth of lactobacillus bulgaricus, lactobacillus lactis, lactobacillus reuteri and bifidobacterium longum in pure culture. ...201425088723
ageratum enation virus-a begomovirus of weeds with the potential to infect crops.samples of two ageratum conyzoides, one sonchus oleraceus and one turnip (brassica rapa var. rapa) exhibiting virus-like symptoms were collected from pakistan and nepal. full-length begomovirus clones were obtained from the four plant samples and betasatellite clones from three of these. the begomovirus sequences were shown to be isolates of ageratum enation virus (aev) with greater than 89.1% nucleotide sequence identity to the 26 aev sequences available in the databases. the three betasatellit ...201525674770
streptosporangium sonchi sp. nov. and streptosporangium kronopolitis sp. nov., two novel actinobacteria isolated from a root of common sowthistle (sonchus oleraceus l.) and a millipede (kronopolites svenhedind verhoeff).two novel actinobacteria, designated strains neau-qs7(t) and neau-ml10(t), were isolated from a root of sonchus oleraceus l. and a kronopolites svenhedind verhoeff specimen, respectively, collected from wuchang, heilongjiang province, china. a polyphasic study was carried out to establish the taxonomic positions of these strains. the two strains were observed to form abundant aerial hyphae that differentiated into spherical spore vesicles. the phylogenetic analysis based on the 16s rrna gene seq ...201525893956
antibacterial, anti-swarming and anti-biofilm formation activities of chamaemelum nobile against pseudomonas aeruginosa.chamomile (chamaemelum nobile) is widely used throughout the world, and has anti-inflammatory, deodorant, bacteriostatic, antimicrobial, carminative, sedative, antiseptic, anti-catarrhal, and spasmolytic properties. because of the increasing incidence of drug-resistant bacteria, the development of natural antibacterial sources such as medical herbs for the treatment of infectious diseases is necessary. extracts from different plant parts such as the leaves, flowers, fruit, and bark of combretum ...201526312934
plantactinospora sonchi sp. nov., an actinobacterium isolated from the leaves of common sowthistle (sonchus oleraceus l.).a novel actinobacterium, designated strain neau-qy2t, was isolated from the leaves of sonchus oleraceus l. specimen, collected from wuchang, heilongjiang province, china. a polyphasic study was carried out to establish the taxonomic position of this strain. the organism formed single spores with rough surfaces on substrate mycelia. phylogenetic analysis based on 16s rrna gene sequences indicated that strain neau-qy2t belonged to the genus plantactinospora and formed a monophyletic clade with its ...201526446200
a reversed-phase compatible thin-layer chromatography autography for the detection of acetylcholinesterase inhibitors.a dual readout autographic assay to detect acetylcholinesterase inhibitors present in complex matrices adsorbed on reversed-phase or normal-phase thin-layer chromatography plates is described. enzyme gel entrapment with an amphiphilic copolymer was used for assay development. the effects of substrate and enzyme concentrations, ph, incubation time, and incubation temperature on the sensitivity and the detection limit of the assay were evaluated. experimental design and response surface methodolog ...201526489065
pseudomonas syringae pv. phaseolicola isolated from weeds in bean crop fields.pseudomonas syringae pv. phaseolicola, the causative agent of halo blight in common bean (phaseolus vulgaris l.), was isolated from weeds associated with bean crops in spain. the bacterium was recovered from fumaria sp, mercurialis annua, solanum nigrum and sonchus oleraceus. ps. s. pv. phaseolicola had previously been isolated from leguminous plants and s. nigrum, but to our knowledge, this is the first time it was recovered from the other three species. the isolates were phenotypically and gen ...201626880144
rare actinomycetes nocardia caishijiensis and pseudonocardia carboxydivorans as endophytes, their bioactivity and metabolites evaluation.two strains identified as nocardia caishijiensis (sors 64b) and pseudonocardia carboxydivorans (agls 2) were isolated as endophytes from sonchus oleraceus and ageratum conyzoides respectively. the analysis of their extracts revealed them to be strongly bioactive. the n. caishijiensis extract gave an lc50 of 570 μg/ml(-1) in the brine shrimp cytotoxicity assay and an ec50 of 0.552 μg/ml(-1) in the dpph antioxidant assay. antimicrobial activity was observed against methicillin resistant staphlococ ...201626946375
verrucosispora sonchi sp. nov., a novel endophytic actinobacterium isolated from the leaves of common sowthistle (sonchus oleraceus l.).a novel actinobacterium, designated strain neau-qy3t, was isolated from the leaves of sonchus oleraceus l. and examined using a polyphasic taxonomic approach. the organism formed single spores with smooth surface on substrate mycelia. phylogenetic analysis based on the 16s rrna gene sequence indicated that the strain had a close association with the genus verrucosispora and shared the highest sequence similarity with verrucosispora qiuiae rtiii47t (99.17 %), an association that was supported by ...201627707427
screening and evaluation of the bioremediation potential of cu/zn-resistant, autochthonous acinetobacter sp. fq-44 from sonchus oleraceus l.the quest for new, promising and indigenous plant growth-promoting rhizobacteria and a deeper understanding of their relationship with plants are important considerations in the improvement of phytoremediation. this study focuses on the screening of plant beneficial cu/zn-resistant strains and assessment of their bioremediation potential (metal solubilization/tolerance/biosorption and effects on growth of brassica napus seedlings) to identify suitable rhizobacteria and examine their roles in mic ...201627746807
lucerne transient streak virus; a recently detected virus infecting alfafa (medicago sativa) in central saudi arabia.a survey was conducted to determine the status of lucerne transient streak virus (ltsv) in three high-yielding alfalfa regions in central saudi arabia (riyadh, qassim, and hail) during 2014. three hundred and eight symptomatic alfalfa, and seven sonchus oleraceus samples were collected. das-elisa indicated that 59 of these samples were positive to ltsv. two isolates of ltsv from each region were selected for molecular studies. rt-pcr confirmed the presence of ltsv in the selected samples using a ...201728167887
characterization of lettuce big-vein associated virus and mirafiori lettuce big-vein virus infecting lettuce in saudi arabia.during 2014 and 2015, 97 lettuce plants that showed big-vein-disease-like symptoms and seven weed plants were collected from the riyadh region. das-elisa revealed that 25% and 9% of the lettuce plants were singly infected with lbvav and milbvv, respectively, whereas 63% had a mixed infection with both viruses. the results were confirmed by multiplex reverse transcription polymerase chain reaction using primers specific for lbvav and milbvv. lbvav and milbvv were also detected in sonchus oleraceu ...201728299485
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