Publications
| Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
|---|
| surfactants differentially impact p,p'-dde accumulation by plant and earthworm species. | the effect of four surfactants (triton x-100, tween-80, rhamnolipids, cyclodextrin) at 100-1000 mg/l on p,p'-dde phytoextraction by cucurbita pepo (zucchini) under field conditions and p,p'-dde bioaccumulation by earthworm species (eisenia fetida, lumbricus terrestris) under laboratory conditions was investigated. abiotically, surfactants (except cyclodextrin) increased contaminant desorption from soil by 4-fold, with higher concentrations generally promoting greater release. cyclodextrin had no ... | 2007 | 17533859 |
| [relationships between host preference of liriomyza huidobrensis (blanchard) and nutrient and chlorophyll contents in host foliage]. | the laboratory study with no free choice means showed that the host preference of liriomyza huidobrensis (blanchard) adult differed significantly with test plants. phaseolus vulgaris, chrysanthemum coronarium and cucurbita pepo were the most preferred, while lycopersicum esculenturn and brassica oleracea were the least. correlative analysis indicated that the host preference of l. huidobrensis adult had a significant positive correlation with the content of soluble sugar, but less correlation wi ... | 2007 | 17552217 |
| ethnoveterinary medicines used to treat endoparasites and stomach problems in pigs and pets in british columbia, canada. | this paper documents the medicinal plants used to treat endoparasites and stomach problems in dogs, cats and pigs in british columbia, canada. ethnoveterinary data was collected over a 6-month period in 2003. the majority of the information on pets came from 2 naturopaths, 10 herbalists, 5 dog trainers, breeders and pet shop owners, 9 holistic veterinarians and 6 of 27 organic farmers. two pig farmers joined the study in the final stages. the following plants were used as anthelmintics: artemisi ... | 2007 | 17628343 |
| root hairs, cuticle, and pits. | the filamentous roots of mustard (raphanus sativus), radish (brassica nigra), squash (cucurbita pepo), and wheat (triticum aestivum) are covered throughout their length with living nucleated root hairs which may measure 1600 micro or more. the outer walls of piliferous and nonpiliferous cells consist of successive layers of mucilage, cutin, and the cellulose-pectic framework of the cell. plasmodesmata and pits occur on all cell walls. under the electron microscope individual pores and pits in th ... | 1963 | 17746006 |
| content of nutrient and antinutrient in edible flowers of wild plants in mexico. | nutrient and antinutritional/toxic factors present in some edible flowers consumed in mexico were determined. the edible flowers were: agave salmiana, aloe vera, arbutus xalapensis, cucurbita pepo (cultivated), erythrina americana, erythrina caribaea, euphorbia radians benth and yucca filifera. the nutrient content in the flowers studied is similar to that of the edible leaves and flowers studied mainly in africa. the moisture content of the flowers varied from 860 to 932 g kg(-1). crude protein ... | 2007 | 17768684 |
| cucurbitane and hexanorcucurbitane glycosides from the fruits of cucurbita pepo cv dayangua. | phytochemical investigation of the fruits of cucurbita pepo cv dayangua has led to the isolation of two cucurbitane glycosides: cucurbitacin l 2-o-beta-d-glucopyranoside (1), cucurbitacin k 2-o-beta-d-glucopyranoside (2) and two hexanorcucurbitane glycosides: 2,16-dihydroxy-22,23,24,25,26,27-hexanorcucurbit-5-en-11,20-dione 2-o-beta-d-glucopyranoside (3) and 16-hydroxy-22,23,24,25,26,27-hexanorcucurbit-5-en-11,20-dione 3-o-alpha-l-rhamnopyranosyl-(1 --> 2)-beta-d-glucopyranoside (4). compounds 1 ... | 2009 | 17885839 |
| nanoparticles as smart treatment-delivery systems in plants: assessment of different techniques of microscopy for their visualization in plant tissues. | the great potential of using nanodevices as delivery systems to specific targets in living organisms was first explored for medical uses. in plants, the same principles can be applied for a broad range of uses, in particular to tackle infections. nanoparticles tagged to agrochemicals or other substances could reduce the damage to other plant tissues and the amount of chemicals released into the environment. to explore the benefits of applying nanotechnology to agriculture, the first stage is to ... | 2008 | 17998213 |
| uptake and translocation of p,p'-dichlorodiphenyldichloroethylene supplied in hydroponics solution to cucurbita. | field studies show shoots of zucchini (cucurbita pepo l.) accumulate various hydrophobic contaminants from soil, although many other plants do not, including cucumber (cucumis sativus l.). to investigate the mechanism for this uptake, we presented p,p'-dichlorodiphenyldichloroethylene (dde) to these two species in hydroponics solution. a mixture of dde bound to tenax beads stirred with a solution of water passing through a reservoir provided a flowing solution containing dde at approximately 2 m ... | 2007 | 18020671 |
| cold tolerance and plant growth promotion potential of serratia marcescens strain srm (mtcc 8708) isolated from flowers of summer squash (cucurbita pepo). | to determine the cold tolerance and plant growth promotion potential of serratia marcescens strain srm (mtcc 8708). | 2008 | 18028329 |
| dde remediation and degradation. | ddt and its metabolites, ddd and dde, have been shown to be recalcitrant to degradation. the parent compound, ddt, was used extensively worldwide starting in 1939 and was banned in the united states in 1973. the daughter compound, dde, may result from aerobic degradation, abiotic dehydrochlorination, or photochemical decomposition. dde has also occurred as a contaminant in commercial-grade ddt. the p,p'-dde isomer is more biologically active than the o,p-dde, with a reported half-life of -5.7 ye ... | 2008 | 18069646 |
| impact of daily consumption of iron fortified ready-to-eat cereal and pumpkin seed kernels (cucurbita pepo) on serum iron in adult women. | iron deficiency, anemia, is the most prevalent nutritional problem in the world today. the objective of this study was to consider the effectiveness of consumption of iron fortified ready-to-eat cereal and pumpkin seed kernels as two sources of dietary iron on status of iron nutrition and response of hematological characteristics of women at reproductive ages. eight healthy female, single or non pregnant subjects, aged 20-37 y consumed 30 g of iron fortified ready-to-eat cereal (providing 7.1 mg ... | 2007 | 18198398 |
| purine-containing cucurbitane triterpenoids from cucurbita pepo cv dayangua. | phytochemical investigation of the fruits of cucurbita pepo cv dayangua led to the isolation of cucurbitaglycosides a (1) and b (2). this is the first report of cucurbitane triterpenoids with a purine unit. their structures were elucidated mainly based on interpretation of hresims results, as well as 1d and 2d nmr spectra. cucurbitaglycosides a and b showed cytotoxic activity against the human epithelial carcinoma cell line hela with ic50 of 17.2 and 28.4 microg/ml, respectively. | 2008 | 18325551 |
| microsatellites for the genus cucurbita and an ssr-based genetic linkage map of cucurbita pepo l. | until recently, only a few microsatellites have been available for cucurbita, thus their development is highly desirable. the austrian oil-pumpkin variety gleisdorfer olkürbis (c. pepo subsp. pepo) and the c. moschata cultivar soler (puerto rico) were used for ssr development. ssr-enriched partial genomic libraries were established and 2,400 clones were sequenced. of these 1,058 (44%) contained an ssr at least four repeats long. primers were designed for 532 ssrs; 500 primer pairs produced fragm ... | 2008 | 18379753 |
| diabrotica virgifera virgifera leconte: inconspicuous leaf beetle--formidable challenges to agriculture. | in the universe of entomology with its close to one million described and an estimated ten million undescribed species, diabrotica virgifera virgifera leconte (coleoptera: chrysometidae), the western corn rootworm (wcr), is one of the economically most important pests. it causes annual treatment costs and damages of a billion dollars in the us (metcalf 1986). similar costs are predicted for europe which the beetle invaded 15 years ago. due to lack of natural enemies it is now expanding its terri ... | 2007 | 18399421 |
| sunflower (helianthus annuus l.) as a pre-columbian domesticate in mexico. | mexico has long been recognized as one of the world's cradles of domestication with evidence for squash (cucurbita pepo) cultivation appearing as early as 8,000 cal b.c. followed by many other plants, such as maize (zea mays), peppers (capsicum annuum), common beans (phaseolus vulgaris), and cotton (gossypium hirsutum). we present archaeological, linguistic, ethnographic, and ethnohistoric data demonstrating that sunflower (helianthus annuus) had entered the repertoire of mexican domesticates by ... | 2008 | 18443289 |
| ascorbic acid conjugates isolated from the phloem of cucurbitaceae. | analysis of phloem exudates from the fruit of cucurbitaceae revealed the presence of several compounds with uv-visible absorption spectra identical to that of l-ascorbic acid. in cucurbita pepo l. (zucchini), the compounds could be isolated from phloem exudates collected from aerial parts of the plant but were not detected in whole tissue homogenates. the compounds isolated from the phloem exudates of c. pepo fruit were eluted from strong anion exchange resin in the same fraction as l-ascorbic a ... | 2008 | 18472116 |
| response of citrus peelminer marmara gulosa guillén and davis (lepidoptera: gracillariidae) stages to various insecticides. | egg and larval stages of citrus peelminer marmara gulosa guillén and davis infesting zucchini squash cucurbita pepo l. var 'revenue' were exposed in the laboratory to a wide range of insecticide classes used in california citrus (organophosphate, carbamate, pyrethroid, neonicotinoid, insect growth regulator, fermentation products and sulfur) to determine peelminer response with and without a non-ionic adjuvant or oil. | 2008 | 18506674 |
| differential effects of methyl jasmonate on growth and division of etiolated zucchini cotyledons. | the jasmonates are well studied in the context of plant defence but increasingly are also recognised as playing roles in development. in many systems, jasmonates antagonise the effects of cytokinins. the aim of the present work was to elucidate interactions between methyl jasmonate and cytokinin (benzyladenine) in regulating growth of zucchini (cucurbita pepo l., cv. cocozelle, var. tripolis) cotyledons, taking advantage of the ability to simultaneously quantify cell enlargement and division fro ... | 2008 | 18557907 |
| pancreatic proteolytic enzymes of ostrich purified on immobilized protein inhibitors. characterization of a new form of chymotrypsin (chtr1). | four forms of chymotrypsin (chtr1, chtr2, chtr3, chtr4), one form of trypsin and one form of elastase were purified from a slightly alkaline extract of ostrich (struthio camelus) pancreas. the zymogens in the crude extract were activated with immobilized trypsin and then separated by affinity chromatography using immobilized inhibitors and ion exchange chromatography. one of the purified forms of chymotrypsin (chtr1) exhibited an unusual interaction with the highly selective protein trypsin inhi ... | 2008 | 18598777 |
| influence of compost amendment on pyrene availability from artificially spiked soil to two subspecies of cucurbita pepo. | the dissolved organic matter (dom) fraction of soil organic matter (som) may positively contribute to polycyclic aromatic hydrocarbons (pahs) bioavailability. this work investigated the effects of dom-rich and pahs-free compost amendment on the plant uptake of pyrene. two subspecies of cucurbita pepo (ssp. pepo cv. raven and ssp. texana cv. sunray) were grown for three weeks in a spiked soil containing 83.9 mg kg(-1) pyrene under four different treatments; inorganic fertilizer (if) alone, 15% (v ... | 2008 | 18632137 |
| papaya ringspot virus-p: characteristics, pathogenicity, sequence variability and control. | taxonomy: papaya ringspot virus (prsv) is an aphid-transmitted plant virus belonging to the genus potyvirus, family potyviridae, with a positive sense rna genome. prsv isolates belong to either one of two major strains, p or w. the p strains infect both papaya and cucurbits whereas the w strains infect only cucurbits. geographical distribution: prsv-p is found in all major papaya-growing areas. physical properties: virions are filamentous, non-enveloped and flexuous measuring 760-800 x 12 nm. vi ... | 2008 | 18705869 |
| an easy method using glutaraldehyde-introduced fluorescence for the microscopic analysis of plant biotrophic interactions. | the method introduced in this article makes use of the glutaraldehyde-induced auto-fluorescence of proteins after cross-linking with glutaraldehyde for the analysis of cellular and sub-cellular structures. because the interface of biotrophic interactions is rich in proteins, the method presented is particularly suitable for the analysis of such interactions; we have exemplified its usefulness by analyzing (1) the root feeding sites induced in roots from arabidopsis thaliana by the root-knot nema ... | 2008 | 18778431 |
| the effects of repeated planting, planting density, and specific transfer pathways on pcb uptake by cucurbita pepo grown in field conditions. | an in situ field investigation into the potential of pcb phytoextraction by cucurbita pepo ssp. pepo (pumpkin) plants was continued for a second year at a field site known to be contaminated with a mixture of aroclors 1254 and 1260 (average soil [pcb]=21 microg/g). plant stem and leaf pcb concentrations in this second field season (11 and 8.9 microg/g, respectively) were observed to increase significantly from the stem and leaf pcb concentrations reported in the previous year (5.7 and 3.9 microg ... | 2008 | 18786697 |
| senescence progression in a single darkened cotyledon depends on the light status of the other cotyledon in cucurbita pepo (zucchini) seedlings: potential involvement of cytokinins and cytokinin oxidase/dehydrogenase activity. | darkness mediates different senescence-related responses depending on the targeting of dark treatment (whole plants or individual leaves) and on the organs that perceive the signal (leaves or cotyledons). as no data are available on the potential role of darkness to promote senescence when applied to individual cotyledons, we have investigated how darkness affects the progression of senescence in either a single or both individually darkened cotyledons of young 10-day-old cucurbita pepo (zucchin ... | 2008 | 18823328 |
| differential uptake for dioxin-like compounds by zucchini subspecies. | the zucchini (cucurbita pepo) cultivars 'patty green', 'black beauty', and 'gold rush' were cultivated on weathered dioxin-contaminated soil in pots, and concentrations of the 29 dioxin-like compounds that were assigned who-tefs, three non-toxic polychlorinated dibenzo-p-dioxins/dibenzofurans (pcdd/fs), and two non-dioxin-like polychlorinated biphenyls (pcbs) were analyzed. toxic equivalent (teq) values accumulated in 'black beauty' and 'gold rush' were about 180 times higher than those in 'patt ... | 2008 | 18835616 |
| melon resistance to cucurbit yellow stunting disorder virus is characterized by reduced virus accumulation. | abstract the pattern of accumulation of cucurbit yellow stunting disorder virus (cysdv; genus crinivirus, family closteroviridae) rna has been analyzed in several cucurbit accessions. in susceptible accessions of melon (cucumis melo), cucumber (cucumis sativus), marrow (cucurbita maxima), and squash (cucurbita pepo), cysdv rna accumulation peaked during the first to second week postinoculation in the first to third leaf above the inoculated one; younger leaves showed very low or undetectable lev ... | 2003 | 18943165 |
| identification and characterization of a novel whitefly-transmitted member of the family potyviridae isolated from cucurbits in florida. | abstract a novel whitefly-transmitted member of the family potyviridae was isolated from a squash plant (cucurbita pepo) with vein yellowing symptoms in florida. the virus, for which the name squash vein yellowing virus (sqvyv) is proposed, has flexuous rod-shaped particles of approximately 840 nm in length. the experimental host range was limited to species in the family cucurbitaceae, with the most dramatic symptoms observed in squash and watermelon, but excluded all tested species in the fami ... | 2007 | 18944369 |
| effect of ripe fruit pulp extract of cucurbita pepo linn. in aspirin induced gastric and duodenal ulcer in rats. | a significant decrease in alkaline phosphatase (ap) activity and mucosal thickness and increase in ulcer index (ui) was observed in aspirin treated stomach and duodenum of albino rats. however, pretreatment with c. pepo fruit pulp extract for 14 consecutive days showed increase in ap activity and mucosal thickness along with decrease in ui, suggesting gastroduodenal protective and anti-ulcerogenic properties of c. pepo. | 2008 | 18949893 |
| ssr-based genetic linkage map of cucurbita moschata and its synteny with cucurbita pepo. | the first ssr-based genetic linkage map of cucurbita moschata was created by integrating the maps of two f2 populations with one common parent developed from the crosses waltham butternut (wb) x nigerian local (nl) and zhou (a hull-less type) x wb. the integrated c. moschata map comprises 205 ssr markers and two morphological traits (gr and n). the map is composed of 27 linkage groups with a marker density of 7 cm. comparing the c. moschata map with the published cucurbita pepo map, we found a h ... | 2008 | 18956020 |
| synergic effect studies of the bi-enzymatic system laccase-peroxidase in a voltammetric biosensor for catecholamines. | several bi-enzymatic carbon paste biosensors modified with enzymes laccase from pleurotus ostreatus fungi and peroxidase from zucchini (cucurbita pepo) were constructed for evaluating the synergic effect of the two enzymes on the voltammetric biosensor response for various catecholamines. initially was investigated the effect of ph from 5.0 to 7.5, temperature from 25 to 50 degrees c, initial stirring time from 30 to 150 s, scan rate from 10 to 60 mvs(-1) and potential pulse amplitude from 10 to ... | 2003 | 18968977 |
| population size and incidence of virus infection in free-living populations of cucurbita pepo. | impact assessments of virus resistance transgene introgression into wild, free-living populations are important for determining whether these transgenes present a risk to agriculture or the environment. transgenic virus-resistant cucurbita pepo ssp. ovifera var. ovifera l. (squash) cultivars have been commercialized, and may be cultivated in close proximity to cross-compatible wild, free-living relatives (c. pepo subsp. pepo vars. ozarkana and texana). therefore, the potential impact of these vi ... | 2008 | 19081007 |
| the effect of stem pruning and nitrogen levels of on some physico-chemical characteristics of pumpkin seed (cucurbita pepo l.). | to investigate the effects of stem pruning (no heading, head pruning of stem after formation of 10 and 14 nodes) and nitrogen levels (0, 50, 100 and 200 kg ha(-1)) on physical and chemical characteristic of pumpkin seed a factorial experiment based on randomized complete block design with three replication was carried out in gorgan at 2003 and repeated in 2004 years. results showed that the stem pruning has significant effect on traits such as seed oil, linoleic acid and oleic acid content. nitr ... | 2007 | 19093491 |
| genes for "reverse" fruit striping in squash (cucurbita pepo). | longitudinal striping is a common fruit color pattern in cucurbita pepo and is conferred by any of several alleles at the light coloration-1 locus. normally, dark stripes appear over the fruit surface areas between the 10 main subepidermal vein tracts with the lighter background color over and adjacent to these vein tracts. less commonly, the striping is "reversed," that is, lighter than the background color. the present work was conducted to elucidate the mode of inheritance of reverse striping ... | 2009 | 19153086 |
| plant mitochondria electron partitioning is independent of short-term temperature changes. | we tested the hypotheses that relative activity of the less efficient alternative oxidase (aox) path changes with diurnal temperature changes, and thus changes carbon use efficiency with temperature. the activities of the alternative and cytochrome oxidase (cox) paths in plant tissues of three species were determined by measuring 18o/16o discrimination and total respiration from 17 to 36 degrees c. a new, more accurate method for calculating oxygen uptake rate from the mass spectrometry data was ... | 2009 | 19210639 |
| monitoring diabrotica v. virgifera (col.: chrysomelidae) in southeastern slovenia: increasing population trend and host spectrum expansion. | ever since the western corn rootworm (wcr) (diabrotica virgifera virgifera), an alien invasive species from north america, has been introduced into europe on at least 3 separate occasions, it spread within 15 years over the entire area of south-eastern and central europe (except denmark). until quite recently, zea mays l. was the only known host plant whereas in north america wcr also attacks members of the plant family cucurbitaceae. in august of 2006, we were able to validate these findings al ... | 2008 | 19226789 |
| effect of home freezing and italian style of cooking on antioxidant activity of edible vegetables. | in this study, we analyzed the modifications of antioxidant activity consequent to 3 typical home cooking practices (steaming, boiling, and microwave cooking) in fresh and home frozen vegetables. six different vegetable species were examined: carrots (daucus carota l.), zucchini (cucurbita pepo l.), tomatoes (solanumn lycopersicum l.), green beans (phaseolus vulgaris l.), peas (pisum sativum l.), and yellow peppers (capsicum annuum l.). all vegetables were conventional products and were analyzed ... | 2008 | 19241586 |
| ultraweak and induced photon emission after wounding of plants. | the ultraweak and induced photon emission were measured by a single photon counting equipment (photomultiplier hamamatsu r562) on cucurbita pepo variaca styriacae after wounding. wounding significantly changes the emission from a stationary to a nonstationary state and the shape of the decay curve obtained after light illumination. the rise in the ultraweak photon emission depends on the kind of wounding and its localization on the plant. the decay curves obtained after wounding could be better ... | 2009 | 19254235 |
| effect of crotalaria juncea amendment on nematode communities in soil with different agricultural histories. | effect of sunn hemp (crotalaria juncea) hay amendment on nematode community structure in the soil surrounding roots of yellow squash (cucurbita pepo) infected with root-knot nematodes was examined in two greenhouse experiments. soils were from field plots treated long-term (lt) with yard-waste compost or no yard-waste compost in lt experiment, and from a short-term (st) agricultural site in st experiment. soils collected were either amended or not amended with c. juncea hay. nematode communities ... | 2003 | 19262764 |
| effect of crotalaria juncea amendment on squash infected with meloidogyne incognita. | two greenhouse experiments were conducted to examine the effect of crotalaria juncea amendment on meloidogyne incognita population levels and growth of yellow squash (cucurbita pepo). in the first experiment, four soils with a long history of receiving yard waste compost (ywc+), no-yard-waste compost (ywc-), conventional tillage, or no-tillage treatments were used; in the second experiment, only one recently cultivated soil was used. half of the amount of each soil received air-dried residues of ... | 2004 | 19262819 |
| effects of a resistant corn hybrid and fenamiphos on meloidogyne incognita in a corn-squash rotation. | the efficacy of a double-cross corn (zea mays) hybrid (old raccoon selection x t216) x (tebeau selection x mp 307) resistant to meloidogyne incognita as a rotational crop, and fenamiphos treatment for management of root-knot nematode (m. incognita race 1) in squash (cucurbita pepo var. melopepo) was evaluated in field tests during 1996 and 1997. numbers of m. incognita in the soil and root-gall indices were lower on the resistant hybrid than on a commercial cultivar dekalb dk-683. treatment mean ... | 1999 | 19270888 |
| rate response of 1,3-dichloropropene for nematode control in spring squash in deep sand soils. | the soil fumigant 1,3-dichloropropene (1,3-d) formulated with chloropicrin is viewed as a likely alternative for replacing methyl bromide in florida when the latter is phased out in 2005. therefore, it behooves us to learn more about using 1,3-d in deep, sand soils. two trials were conducted on spring squash to determine the most effective rate of 1,3-d for the control of meloidogyne spp. rates tested included 0, 56, 84, 112, and 168 liters/ha of 1,3-d applied broadcast with conventional chisels ... | 2000 | 19271005 |
| effects of solarization and ammonium amendments on plant-parasitic nematodes. | the effects of soil solarization and ammonium bicarbonate or ammonium sulfate against plant-parasitic nematodes on yellow squash (cucurbita pepo) and on vinca (catharanthus roseus) were evaluated at two sites. solarization for 3 weeks in the spring suppressed population levels of belonolaimus longicaudatus, criconemella spp., and dolichodorus heterocephalus throughout the growing season on both crops at both sites. levels of meloidogyne incognita were suppressed initially, but population densiti ... | 2000 | 19271007 |
| responses of meloidogyne arenaria and m. incognita to green manures and supplemental urea in glasshouse culture. | the recent loss of many effective nematicides has led to renewed interest in alternative methods of nematode management. greenhouse experiments were conducted to determine the effects of rapeseed and velvetbean green manures, and supplemental urea, on the root-knot nematodes meloidogyne arenaria and m. incognita. green manures were incorporated with m. arenaria-infested soil using rates totaling 200,300, and 400 mg n/kg soil. squash plants grown in this soil were evaluated using a gall index and ... | 1996 | 19277190 |
| rotations with coastal bermudagrass and fallow for management of meloidogyne incognita and soilborne fungi on vegetable crops. | the efficacy of fallow and coastal bermudagrass (cynodon dactylon) as a rotation crop for control of root-knot nematode (meloidogyne incognita race 1) and soilborne fungi in okra (hibiscus esculentus cv. emerald), squash (cucurbita pepo cv. dixie hybrid), and sweet corn (zea mays cv. merit) was evaluated in a 3-year field trial. numbers of m. incognita in the soil and root-gall indices were greater on okra and squash than sweet corn and declined over the years on vegetable crops following fallow ... | 1995 | 19277312 |
| effect of yard waste compost on plant-parasitic nematode densities in vegetable crops. | the effects of yard-waste compost on densities of plant-parasitic nematodes were determined on four crops at two sites in north florida. separate experiments were conducted with sweet corn (zea mays), cowpea (vigna unguiculata), yellow squash (cucurbita pepo), and okra (hibiscus esculentus). in each test, the design was a randomized complete block replicated four times and involving three treatments: 269 mt/ha yard-waste compost applied to the soil surface as a mulch, 269 mt/ha compost incorpora ... | 1995 | 19277320 |
| effect of simulated rainfall on leaching and efficacy of fenamiphos. | there is increasing concern in the united states about the pesticide movement in soil, groundwater contamination, and pesticide residue in food. the objective of this study was to determine the efficacy, degradation, and movement of fenamiphos (nemacur 15g) in the soil and residues in squash fruit as influenced by four simulated rainfall treatments (2.5 or 5.0 cm each applied 1 or 3 days after nematicide application) under field conditions. in 1990, concentrations of fenamiphos were greater in t ... | 1995 | 19277322 |
| effects and carry-over benefits of nematicides in soil planted to a sweet corn-squash-vetch cropping system. | the effects of irrigation on the efficacy of nematicides on meloidogyne incognita race 1 population densities, yield of sweet corn, and the carry-over of nematicidal effect in the squash crop were determined in a sweet corn-squash-vetch cropping system for 3 years. fenamiphos 15g and aldicarb 15g were applied at 6.7 kg a.i./ha and incorporated 15 cm deep with a tractor-mounted rototiller. ethylene dibromide (edb) was injected at 18 kg a.i./ha on each side of the sweet corn rows (total 36 kg a.i. ... | 1995 | 19277323 |
| effects of mixed cropping on a soil nematode community in honduras. | nematode-resistant tropical legumes are effective in reducing populations of plant-parasitic nematodes when used in rotation systems. mixed cropping is a common practice of many small farmers in central america, but little is known about the effects of tropical legumes on nematode communities under these systems. to examine the effects of intercropping on the nematode fauna associated with squash (cucurbita pepo) and cucumber (cucumis sativa) in honduras, two field experiments were conducted to ... | 1993 | 19279824 |
| effects of tropical rotation crops on meloidogyne arenaria population densities and vegetable yields in microplots. | the effects of 12 summer crop rotation treatments on population densities of meloidogyne arenaria race 1 and on yields of subsequent spring vegetable crops were determined in microplots. the crop sequence was: (i) rotation crops during summer 1991 ; (ii) cover crop of rye (secale cereale) during winter 1991-92; (iii) squash (cucurbita pepo) during spring 1992; (iv) rotation crops during summer 1992; (v) rye during winter 1992-93; (vi) eggplant (solanum melongena) during spring 1993. the 12 rotat ... | 1994 | 19279880 |
| tropical rotation crops influence nematode densities and vegetable yields. | the effects of eight summer rotation crops on nematode densities and yields of subsequent spring vegetable crops were determined in field studies conducted in north florida from 1991 to 1993. the crop sequence was as follows: (i) rotation crops during summer 1991; (ii) cover crop of rye (secale cereale) during winter 1991-92; (iii) 'lemondrop l' squash (cucurbita pepo) during spring 1992; (iv) rotation crops during summer 1992; (v) rye during winter 1992-93; (vi) 'classic' eggplant (solanum melo ... | 1994 | 19279897 |
| efficacy of fenamiphos formulations applied through irrigation for control of meloidogyne incognita on squash. | management ofmeloidogyne incognita by chemigation with fenamiphos was studied in an infested field planted to m. incognita-suscepfible yellow summer squash cv. dixie hybrid. fenamiphos (vl 73.1% a.i. manufacturing concentrate in propylene glycol) was mixed with unitol dsr-90 or used as fenamiphos 3 sc (spray concentrate). both formulations, applied with 63.5 kl irrigation water per hectare, decreased numbers of m. incognita second-stage juveniles in the soil and root-gall indices, and increased ... | 1994 | 19279950 |
| crop rotation studies with velvetbean (mucuna deeringiana) for the management of meloidogyne spp. | results from a greenhouse experiment at cabrils, spain, with two velvetbean (mucuna deeringiana) accessions (florida and mozambique) growing in sterilized sandy loam and inoculated with meloidogyne arenaria race 2, m. incognita race 1, and m. javanica revealed that the legume was not a host for these nematodes. in contrast, roots of 'clemson spineless' okra (hibiscus esculentum), 'summer crookneck' squash (cucurbita pepo), and 'davis' soybean (glycine max) were galled by all three root-knot nema ... | 1992 | 19283043 |
| effects of rapeseed and vetch as green manure crops and fallow on nematodes and soil-borne pathogens. | in a rapeseed-squash cropping system, meloidogyne incognita race 1 and m. javanica did not enter, feed, or reproduce in roots of seven rapeseed cultivars. both nematode species reproduced at low levels on roots of the third crop of rapeseed. reproduction of m. incognita and m. javanica was high on squash following rapeseed, hairy vetch, and fallow. the application of fenamiphos suppressed (p = 0.05) root-gall indices on squash following rapeseed, hairy vetch, and fallow; and on dwarf essex and c ... | 1992 | 19283212 |
| potential of crops uncommon to alabama for management of root-knot and soybean cyst nematodes. | vigna unguiculata, cassia fasiculata, and sesamum indicum did not support meloidogyne arenaria, m. incognita, or heterodera glycines race 4 in greenhouse studies with soils from peanut and soybean fields. fagopyron eseulentum, cyamopsis tetragonoloba, and cucurbita pepo were hosts to the two meloidogyne spp. but were nonhosts to h. glycines. meloidogyne arenaria and m. incognita galled but reproduced poorly in the roots of three types of amaranthus cruentus, and low densities of these two meloid ... | 1988 | 19290317 |
| management of root-knot nematodes by phenamiphos applied through an irrigation simulator with various amounts of water. | phenamiphos (6.7 kg a.i./ha) was applied via an irrigation simulator to squash at planting (ap) and 2 weeks after planting (pp), and to corn ap and 1 week pp to manage root-knot nematodes (meloidogyne incognita). the nematicide was applied with 0.25, 0.64, 1.27, and 1.91 cm surface water/ ha to a lakeland sand in which the soil moisture was at or near field capacity. based on efficacy and crop response, no additional benefits resulted when phenamiphos was applied in volumes of water greater than ... | 1986 | 19294192 |
| partitioning yield loss on yellow squash into nematode and insect components. | the effect of a contplex of several insect and nematode pests on yield of yellow squash (cucurbita pepo l.) was examined in two field tests in southern florida. applications of permethrin for insect control and oxamyl primarily for nematode control plus some insect control were made alone and in combination to achieve differential reduction of various insect and nematode components contributing to yield loss. the effect of these components on yield was further analyzed by multiple regression. yi ... | 1982 | 19295683 |
| inhibitory effect of watermelon mosaic virus on meloidogyne javanica (treub) chitwood infecting cucurbita pepo l. | 1984 | 19295884 | |
| initial formation of an indigenous crop complex in eastern north america at 3800 b.p. | although geneticists and archaeologists continue to make progress world-wide in documenting the time and place of the initial domestication of a growing number of plants and animals, far less is known regarding the critically important context of coalescence of various species into distinctive sets or complexes of domesticates in each of the world's 10 or more independent centers of agricultural origin. in this article, the initial emergence of a crop complex is described for one of the best-doc ... | 2009 | 19366669 |
| nanoparticle penetration and transport in living pumpkin plants: in situ subcellular identification. | in recent years, the application of nanotechnology in several fields of bioscience and biomedicine has been studied. the use of nanoparticles for the targeted delivery of substances has been given special attention and is of particular interest in the treatment of plant diseases. in this work both the penetration and the movement of iron-carbon nanoparticles in plant cells have been analyzed in living plants of cucurbita pepo. | 2009 | 19389253 |
| influence of cover crop and intercrop systems on bemisia argentifolli (hemiptera: aleyrodidae) infestation and associated squash silverleaf disorder in zucchini. | field experiments were conducted to evaluate the effects of cover cropping and intercropping on population densities of silverleaf whitefly, bemisia argentifolli bellow and perring, and the incidence of squash silverleaf disorder (ssl) in zucchini, cucurbita pepo l., in oahu, hi. two cover crops, buckwheat (bw), fagopyrum esculentum moench, and white clover (wc), trifolium repens l., or sunn hemp (sh), crotolaria juncea l., and an intercropped vegetable, okra, abelmonchus esculentus l., were eva ... | 2009 | 19389294 |
| spent mushroom substrates as component of growing media for germination and growth of horticultural plants. | this research work was conducted in order to investigate the possibility of using spent mushroom substrate (sms) in the production of horticultural seedlings replacing part of the peat in the growing media. three vegetable species with different salt sensitivities, the less sensitive being tomato (lycopersicon esculentum var. muchamiel), the moderately salt-sensitive being courgette (cucurbita pepo l. var. afrodite f1) and the most salt-sensitive being pepper (capsicum annum l. var. lamuyo f1) w ... | 2009 | 19409775 |
| cadmium induced changes in subcellular glutathione contents within glandular trichomes of cucurbita pepo l. | plants cope with cadmium (cd) stress by complexation with phytochelatins (pc), metallothioneins and glutathione and sequestration within vacuoles. especially glutathione was found to play a major role in cd detoxification as cd shows a high binding affinity towards thiols and as glutathione is a precursor for pc synthesis. in the present study, we have used an immunohistochemical approach combined with computer-supported transmission electron microscopy in order to measure changes in the subcell ... | 2010 | 19424775 |
| wild bee abundance and pollination service in cultivated pumpkins: farm management, nesting behavior and landscape effects. | recent declines in managed and feral honey bee populations have greatly increased interest in the current and potential role of wild pollinators in agricultural pollination. pumpkin (cucurbita pepo l.) has great potential to be served by wild pollinators because of a reliable and widespread group of bee species that are commonly associated with their flowers, including bumble bees (bombus spp.), and, in the americas, two genera of specialist ground nesting bees (peponapis and xenoglossa). we exa ... | 2009 | 19449636 |
| enhancing the release and plant uptake of pahs with a water-soluble purine alkaloid. | the effect of a common plant alkaloid, caffeine, on the release and plant uptake of some polycyclic aromatic hydrocarbons (pahs) in soils was investigated. cucurbita pepo (ssp. pepo cv. gold rush) was grown in pah-spiked media in the presence and absence of caffeine. solubility tests initially confirmed the ability of caffeine to dissolve pahs mixtures of anthracene, phenanthrene, pyrene, benzo[a]pyrene and benzo[ghi]perylene. extraction experiments also highlighted its potential as a pah-releas ... | 2009 | 19477480 |
| the effects of planting methods and head pruning on seed yield and yield components of medicinal pumpkin (cucurbita pepo subsp. pepo convar. pepo var. styriaca) at low temperature areas. | this experiment carried out to evaluate the effects of planting methods (seed sowing and transplanting) and head pruning (no pruning, pruning after 12th node and pruning after 16th node) on yield and yield components such as number of branches (sub-branches) per plant, fruits per plant, growth, fruit size, weight of fresh fruit, weight of seeds per fruit, number of seeds per fruit and seed yield of medicinal pumpkin. the experiment was carried out based of factorial experiment with randomized co ... | 2009 | 19580007 |
| rapid diagnosis of plant virus diseases by transmission electron microscopy. | a clear and rapid diagnosis of plant virus diseases is of great importance for agriculture and scientific experiments in plant phytopathology. even though negative staining and transmission electron microscopy (tem) are often used for detection and identification of viral particles and provide rapid and reliable results, it is necessary to examine ultrastructural changes induced by viruses for clear identification of the disease. with conventional sample preparation for tem it can take several d ... | 2009 | 19665483 |
| risk assessment of genetically engineered crops: fitness effects of virus-resistance transgenes in wild cucurbita pepo. | the development of crops genetically engineered for pathogen resistance has raised concerns that crop-to-wild gene flow could release wild or weedy relatives from regulation by the pathogens targeted by the transgenes that confer resistance. investigation of these risks has also raised questions about the impact of gene flow from conventional crops into wild plant populations. viruses in natural plant populations can play important roles in plant fecundity and competitive interactions. here, we ... | 2009 | 19688918 |
| reversible change of extracellular ph at the generation of mechano-induced electrical reaction in a stem of cucurbita pepo. | as was shown recently the generation of cooling-induced action potential accompanies the reversible change of extracellular ph.1 the ph changes are linked to the ca(2+)-induced transient inhibition of the plasma membrane h(+)-atpase. generation of mechano-induced local bioelectrical reaction (lber) also accompanies the reversible change of extracellular ph. shifts of ph medium during generation of mechano-induced electrical impulse are less than during generation of cooling-induced bioelectrical ... | 2007 | 19704676 |
| kinetics of prolonged photoinhibition revisited: photoinhibited photosystem ii centres do not protect the active ones against loss of oxygen evolution. | photoinhibition of photosystem ii (psii) in lincomycin-treated leaves begins as a first-order reaction, but fluorescence measurements have suggested that after prolonged illumination, the number of active psii centres stabilizes to 15-20% of control. the stabilization has been interpreted to indicate that photoinhibited psii centres protect the remaining active centres against photoinhibition (lee, hong and chow, planta 212:332-342, 2001). in an attempt to study the mechanism of this protection, ... | 2010 | 19760110 |
| effects of amendments on the uptake and distribution of ddt in cucurbita pepo ssp pepo plants. | the effects of soil amendments on the phytoextraction of summation operatorddt (ddt + ddd + dde) from soil ([ summation operatorddt] approximately 1500 ng/g) by a pumpkin variety of cucurbita pepo ssp pepo were tested and the patterns of summation operatorddt storage throughout the plant shoot were examined. the soil amendments did not increase the total amount of summation operatorddt extracted into plant shoots, but new information about summation operatorddt distribution in the plants was obt ... | 2010 | 19762136 |
| [resistance of squash genotypes to bemisia tabaci (genn.) biotype b (hemiptera: aleyrodidae)]. | field assays were performed to evaluate the attractiveness and the non-preference of whitefly bemisia tabaci (genn.) biotype b for oviposition on squash genotypes (cucurbita pepo) and to observe the susceptibility of genotypes (novita, sandy, caserta cac melhorada, novita plus, samira, bianca, af-2858 and caserta ts) to silverleaf symptoms. the sandy genotype was the least attractive to whitefly, while novita plus, af-2858 and samira were the most attractive. the caserta cac melhorada genotype w ... | 2009 | 19768274 |
| assay-dependent phytotoxicity of nanoparticles to plants. | the effects of five nanomaterials (multiwalled carbon nanotubes [mwcnts], ag, cu, zno, si) and their corresponding bulk counterparts on seed germination, root elongation, and biomass of cucurbita pepo (zucchini) were investigated. the plants were grown in hydroponic solutions amended with nanoparticles or bulk material suspensions at 1000 mg/l. seed germination was unaffected by any of the treatments, but cu nanoparticles reduced emerging root length by 77% and 64% relative to unamended controls ... | 2009 | 19924897 |
| effect of plant age on pcb accumulation by cucurbita pepo ssp. pepo. | a greenhouse experiment was conducted to investigate polychlorinated biphenyl (pcb) uptake and translocation from soil over time in pumpkin plants (cucurbita pepo ssp. pepo cv. howden). plants were grown in weathered soil collected from a former industrial site contaminated with aroclor 1248 (mean [pcb](soil) = 6.5 mg kg(-1)). plants were harvested five times over 42 d and analyzed for total pcb concentration in the root and shoot tissues. the concentration of pcbs in the root was not significan ... | 2013 | 20048312 |
| insights into the evolution of mitochondrial genome size from complete sequences of citrullus lanatus and cucurbita pepo (cucurbitaceae). | the mitochondrial genomes of seed plants are unusually large and vary in size by at least an order of magnitude. much of this variation occurs within a single family, the cucurbitaceae, whose genomes range from an estimated 390 to 2,900 kb in size. we sequenced the mitochondrial genomes of citrullus lanatus (watermelon: 379,236 nt) and cucurbita pepo (zucchini: 982,833 nt)--the two smallest characterized cucurbit mitochondrial genomes--and determined their rna editing content. the relatively com ... | 2010 | 20118192 |
| deceptive chemical signals induced by a plant virus attract insect vectors to inferior hosts. | previous studies have shown that vector-borne pathogens can alter the phenotypes of their hosts and vectors in ways that influence the frequency and nature of interactions between them, with significant implications for the transmission and spread of disease. for insect-borne pathogens, host odors are particularly likely targets for manipulation, because both plant- and animal-feeding insects use volatile compounds derived from their hosts as key foraging cues. here, we document the effects of a ... | 2010 | 20133719 |
| floral transmission of erwinia tracheiphila by cucumber beetles in a wild cucurbita pepo. | cucumber beetles, acalymma vittatum (f.) and diabrotica undecipunctata howardi (barber), are specialist herbivores of cucurbits and the vector of erwinia tracheiphila (e.f. smith) holland, the causative agent of wilt disease. cucumber beetles transmit e. tracheiphila when infected frass falls onto leaf wounds at the site of beetle feeding. we show that e. tracheiphila also can be transmitted via the floral nectaries of cucurbita pepo ssp. texana l. andres (texas gourd). under field conditions, w ... | 2010 | 20146850 |
| assessment of attractiveness of plants as roosting sites for the melon fly, bactrocera cucurbitae, and oriental fruit fly, bactrocera dorsalis. | the use of toxic protein bait sprays to suppress melon fly, bactrocera cucurbitae (coquillett) (diptera: tephritidae), populations typically involves application to vegetation bordering agricultural host areas where the adults seek shelter ("roost"). although bait spray applications for suppression of oriental fruit fly, bactrocera dorsalis (hendel), populations have traditionally been applied to the host crop, rather than to crop borders, roosting by oriental fruit flies in borders of some crop ... | 2007 | 20334596 |
| a biosensor based on zucchini (cucurbita pepo l.) homogenate as a biorecognition layer for ascorbic acid determination. | an amperometric biosensor based on zucchini (cucurbita pepo) tissue homogenate is presented. the zucchini tissue homogenate was crosslinked with gelatine using glutaraldehyde and fixed on a pretreated teflon membrane. the zucchini tissue contained the enzyme ascorbate oxidase and this enzyme catalyzed the oxidation of ascorbic acid in the presence of dissolved oxygen. the principle of the measurements was based on the determination of the decrease in the dissolved oxygen level. determinations we ... | 2010 | 20384439 |
| cloning and characterisation of two ctr1-like genes in cucurbita pepo: regulation of their expression during male and female flower development. | ethylene is an essential regulator of flower development in cucurbita pepo, controlling the sexual expression, and the differentiation and maturation of floral organs. to study the action mechanism of ethylene during the male and female flower development, we have identified two ctr1 homologues from c. pepo, cpctr1 and cpctr2, and analysed their expressions during female and male flower development and in response to external treatments with ethylene. cpctr1 and cpctr2 share a high homology with ... | 2010 | 20390430 |
| mobility and half-life of bensulide in agricultural soil. | environmentally and economically viable agriculture requires the use of cultivation practices that maximize agrochemical efficacy while minimizing their off-site movement. bensulide [o, o-diisopropyl s-2-phenylsulfonylaminoethyl phosphorodithioate] is one of the few herbicides from the organophosphate group used for control of weeds that threaten numerous crops. a field study was conducted on a silty-loam soil of 10% slope at kentucky state university research farm to monitor off-site movement a ... | 2010 | 20390925 |
| inoculation of plants with begomoviruses by particle bombardment without cloning: using rolling circle amplification of total dna from infected plants and whiteflies. | a new system for inoculation of plants with begomoviral dna without cloning or the use insect vectors is described. total dna extracted from begomovirus-infected plants was amplified by rolling circle amplification (rca) using the bacteriophage phi29 dna polymerase, and inoculated to plants by particle bombardment. infection rates of up to 100% were obtained using this technique. this technique successfully inoculated all the begomoviruses evaluated: five bipartite (bean golden yellow mosaic vir ... | 2010 | 20447420 |
| host range and complete genome sequence of cucurbit chlorotic yellows virus, a new member of the genus crinivirus. | cucurbit chlorotic yellows virus (ccyv) causes chlorotic yellows on cucumber (cucumis sativus) and melon (cucumis melo) and is transmitted by bemisia tabaci biotype b and q whiteflies. to characterize the host range of ccyv, 21 cucurbitaceous and 12 other plant species were inoculated using whitefly vectors. all tested cucumis spp. except cucumis anguria and cucumis zeyheri were systemically infected with ccyv, although infection rates varied among species. citrullus lanatus, cucurbita pepo, and ... | 2010 | 20465411 |
| bryonolic acid: a large-scale isolation and evaluation of heme oxygenase 1 expression in activated macrophages. | bryonolic acid (ba) is a triterpenoid found in the cucurbitaceae family of plants. our interests in the immunomodulatory effects of this class of natural products led us to discover that ba induces a marked increase in the expression of a phase 2 response enzyme, heme oxygenase 1 (ho-1), in a dose-dependent manner. this phenotype has translational implications in malarial disease progression, and consequently we developed a large-scale isolation method for ba that will enable future in vitro and ... | 2010 | 20481554 |
| potential for phytoextraction of pcbs from contaminated soils using weeds. | a comprehensive investigation of the potential of twenty-seven different species of weeds to phytoextract polychlorinated biphenyls (pcbs) from contaminated soil was conducted at two field sites (etobicoke and lindsay) in southern ontario, canada. soil concentrations were 31 microg/g and 4.7 microg/g at each site respectively. all species accumulated pcbs in their root and shoot tissues. mean shoot concentrations at the two sites ranged from 0.42 microg/g for chenopodium album to 35 microg/g for ... | 2010 | 20483449 |
| understanding the physiological and molecular mechanism of persistent organic pollutant uptake and detoxification in cucurbit species (zucchini and squash). | cucurbita pepo ssp pepo (zucchini) roots phytoextract significant amounts of persistent organic pollutants (pops) from soil, followed by effective translocation to aboveground tissues. the closely related c. pepo ssp ovifera (squash) does not have this ability. in a dde-contaminated field soil, zucchini roots and stems contained 3.6 and 6.6-fold greater contaminant than did squash tissues, respectively, and zucchini phytoextracted 12-times more dde from soil than squash. in batch hydroponics, sq ... | 2010 | 20507062 |
| inheritance of p,p'-dde phytoextraction ability in hybridized cucurbita pepo cultivars. | cucurbita pepo ssp pepo (zucchini) has been shown to uniquely phytoextract percent level amounts of dichlorodiphenyldichloroethylene (dde) and other organic contaminants from soil. since c. pepo ssp ovifera (squash) does not have this ability, a three-year field trial was conducted to follow the inheritance pattern of dde accumulation for cross pollinated c. pepo cultivars. parental zucchini and squash cultivars (3 each) had stem-to-soil bioconcentration factors (bcf, contaminant ratio of stem t ... | 2010 | 20507162 |
| zucchini yellow mosaic virus: insect transmission and pathogenicity -the tails of two proteins. | summary taxonomy: zucchini yellow mosaic virus (zymv) is a member of genus potyvirus, family potyviridae. zymv is a positive-strand rna virus. physical properties: virions are flexuous filaments of 680-730 nm in length and 11-13 nm in diameter, composed of about 2000 subunits of a single 31-kda protein (calculated). the genome rna size is 9.6 kb covalently linked to a viral-encoded protein (the vpg) at the 5' end, and with a 3' poly a tail. the 5' end of the sequence is au-rich (69%). viral prot ... | 2007 | 20507486 |
| detection of plant dna in the bronchoalveolar lavage of patients with ventilator-associated pneumonia. | hospital-acquired infections such as nosocomial pneumonia are a serious cause of mortality for hospitalized patients, especially for those admitted to intensive care units (icus). despite the number of the studies reported to date, the causative agents of pneumonia are not completely known. herein, we found by molecular technique that vegetable and tobacco dna may be detected in the bronchoalveolar lavage from patients with ventilator-associated pneumonia (vap). | 2010 | 20585574 |
| rapid detection of squash leaf curl virus by loop-mediated isothermal amplification. | a loop-mediated isothermal amplification (lamp) assay was employed to develop a simple and efficient system for the detection of squash leaf curl virus (slcv) in diseased plants of squash (cucurbita pepo) and melon (cucumis melo). completion of lamp assay required 30-60 min under isothermal conditions at 65 degrees c by employing a set of four primers targeting slcv. although the sensitivity of the lamp assay and the polymerase chain reaction (pcr) assay was comparable at high virus concentratio ... | 2010 | 20603151 |
| chemical composition and biological activity of ripe pumpkin fruits (cucurbita pepo l.) cultivated in egyptian habitats. | the chemical composition and biological activity of three parts (rind, flesh and seeds) of pumpkin fruits (cucurbita pepo l.) cultivated in egypt were studied. chemical analysis of fibre, protein, β-carotene, carbohydrates, minerals and fatty acids present in the rind, flesh, seeds and defatted seeds meal was conducted. chemical, gc-ms and biological assays of organic extracts of the main fruit parts, rind and flesh established their unique constituents. chromatographic purification of the extra ... | 2011 | 20603772 |
| protective role of three vegetable peels in alloxan induced diabetes mellitus in male mice. | the hitherto unknown glucose regulating role of three vegetable peels from cucurbitaceae family was evaluated. in a preliminary study, effects of ethanolic extracts of cucurbita pepo, cucumis sativus and praecitrullus fistulosus peels were studied at 250 and 500 mg kg(-1) d(-1) for 15 days in the alterations in serum glucose and in hepatic lipid peroxidation (lpo) in male mice. in the pilot experiment, the effective and safe concentration of each peel was administered (p.o.) for 10 consecutive d ... | 2010 | 20614191 |
| effect of organic matter additions on uptake of weathered ddt by cucurbita pepo ssp. pepo cv. howden. | greenhouse studies were conducted to assess the impact of organic matter additions on plant uptake of ddt [2,2-bis(chlorophenyl)-1,1,1-trichloroethane] from weathered soil. cucurbita pepo ssp. pepo cv. howden pumpkins were grown in 100 g of ddt contaminated soil ([ddt] - 1100 ng/g) mixed with equal volumes of either clean soil, perlite, vermiculite, peat, potting soil, or granular activated carbon (gac) to give total organic carbon contents of 2.4%, 2.5%, 2.6%, 11.5%, 12.2%, and 27.3%, respectiv ... | 2013 | 20734916 |
| [an extracellular ph changes registration by confocal microscopy in higher plant at the excitation potentials generation]. | confocal microscopy technique was applied for registration of apoplast ph changes in the cucurbita pepo seedling stem during generation of action potential and variation potential. fluorescent dye fitc-dextran was used for ph-changes registration. analysis of fluorescence images and fluorescence spectra showed, that fitc-dextran was localized in cell walls. propagation of action potential and variation potential was accompanied by transient increase of fluorescence intensity, which indicated alk ... | 2010 | 20799619 |
| dieldrin uptake and translocation in plants growing in hydroponic medium. | it has been known that the cucurbitaceae family takes up a large amount of persistent organic pollutants from soils and that the translocation of those compounds in cucurbits is higher than those in non-cucurbits. to understand the persistent organic pollutant uptake mechanisms of plant species, we compared the dieldrin absorption and transportation potentials of several plants in hydroponic medium. sorghum (sorghum vulgare moench), sunflower (helianthus annuus l.), soybean (glycine max), komats ... | 2010 | 20821429 |
| dieldrin-dissolving abilities of the xylem saps of several plant families, particularly cucurbita pepo l. | the uptake ability of hydrophobic organic chemicals by plants and the nature of xylem sap of the plants were studied. the plants were grown in soil contaminated with dieldrin. high amounts of dieldrin were detected in the shoots of cucurbita pepo and cucumis sativus, but little was seen in the shoots of brassica oleracea var. italica, solanum lycopersicum, glycine max, zea mays, and helianthus annuus. the xylem saps of c. pepo and c. sativus leached dieldrin adsorbed on c8 granules, but those of ... | 2010 | 20872691 |
| cytotoxicity of hydro-alcoholic extracts of cucurbitapepo and solanum nigrum on hepg2 and ct26 cancer cell lines. | plants are used worldwide for the treatment of diseases, and novel drugs continue to be developed through research from plants. there are more than 20,000 species of plants used in traditional medicines, and these are all potential reservoirs for new drugs. cucurbitapepo has been used in traditional folk medicine to treat cold and alleviate ache. previous pharmacological tests have shown that it possesses antiviral, anti-inflammatory, and analgesic effects. also, solanum nigrum has been used as ... | 2010 | 20931075 |
| suppressive effect of pectic polysaccharides from cucurbita pepo l. var. styriaca on citric acid-induced cough reflex in guinea pigs. | several water-soluble pectic polysaccharides were isolated from the pumpkin fruit biomass and characterized by composition, structural features and molecular properties. the pectic polysaccharides were tested for antitussive activity by studying the effects of citric acid-induced cough reflex in guinea pigs and reactivity of the airway smooth muscle in vivo conditions in comparison to the narcotic drug codeine. oral administration of all pectic polysaccharides from pumpkin inhibited the number o ... | 2010 | 21062638 |
| temperature-dependent changes in photosystem ii heterogeneity of attached leaves under high light. | attached leaves of pumpkin (cucurbita pepo l. cv. jattiläismeloni) were exposed to high light intensity at room temperature (ca 23°c) and at 1°c. fluorescence parameters and electron transport activities measured from isolated thylakoids indicated faster photoinhibition of psii at low temperature. separation of the α and β components of the complementary area above the fluorescence induction curve of dichlorophenyl-dimethylurea-poisoned thylakoids revealed that at low temperature only the α-cent ... | 1990 | 21087264 |
| technical note: evaluation of extraction methodologies for the determination of an organochlorine pesticide residue in vegetation. | numerous extraction methodologies are used to quantify pesticide levels in vegetation. sample availability, resource use, efficiency, time consumption, space allocation, and cost vary considerably among the commonly employed techniques. a study was conducted to compare the efficiency of microwave assisted extraction (mae), blender homogenized extraction (be), soxhlet extraction (se), the quechers ("quick, easy, cheap, effective, rugged, and safe") method, and a simple oven assisted extraction (o ... | 2013 | 21166351 |
| the effects of pruning and nodal adventitious roots on polychlorinated biphenyl uptake by cucurbita pepo grown in field conditions. | two cultivation techniques (i-pruning and ii-nodal adventitious root encouragement) were investigated for their ability to increase pcb phytoextraction by cucurbita pepo ssp pepo cv. howden (pumpkin) plants in situ at a contaminated industrial site in ontario (aroclor 1248, mean soil [pcb] = 5.6 μg g(-1)). pruning was implemented to increase plant biomass close to the root where pcb concentration is known to be highest. this treatment was found to have no effect on final shoot biomass or pcb con ... | 2011 | 21168941 |