the response of foliar gas exchange to exogenously applied ethylene.the responsiveness to ethylene of net photosynthesis and stomatal conductance to water vapor in intact plants was investigated in 13 herbaceous species representing seven plant families. exposures were conducted in an open, whole-plant exposure system providing controlled levels of irradiance, air temperature, co(2), relative humidity, and ethylene concentration. net photosynthesis and stomatal conductance to water vapor in units of moles per square meter per second were measured on recently exp ...198616665086
spectral characterization and proteolytic mapping of native 120-kilodalton phytochrome from cucurbita pepo l.a spectral, immunochemical, and proteolytic characterization of native 120-kilodalton (kd) phytochrome from cucurbita pepo l. is presented and compared with that previously reported for native 124-kd phytochrome from avena sativa. the molecule was partially purified ( approximately 200-fold) in the phytochrome-far red-absorbing form (pfr) in the presence of the protease inhibitor, phenylmethylsulfonyl fluoride, using a modification of the procedure initially developed to purify 124-kd avena phyt ...198516664177
native phytochrome: immunoblot analysis of relative molecular mass and in-vitro proteolytic degradation for several plant species.the relative molecular mass (mr) of the native phytochrome monomer from etiolated cucurbita pepo l., pisum sativum l., secale cereale l. and zea mays l. seedlings has been determined using immunoblotting to visualize the chromoprotein in crude extracts subjected to sodium dodecyl sulfate-polyacrylamide gel electrophoresis. a single phytochrome band is observed for each plant species when the molecule is extracted under conditions previously demonstrated to inhibit the proteolysis of native avena ...198424258779
characterization by enzyme-linked immunosorbent assay of monoclonal antibodies to pisum and avena phytochrome.nine monoclonal antibodies to pea (pisum sativum l.) and 16 to oat (avena sativa l.) phytochrome are characterized by enzyme-linked immunosorbent assay against phytochrome from six different sources: pea, zucchini (cucurbita pepo l.), lettuce (lactuca sativa l.), oat, rye (secale cereale l.), and barley (hordeum vulgare l.). all antibodies were raised against phytochrome with a monomer size near 120,000 daltons. nevertheless, none of them discriminated qualitatively between 118/114-kilodalton oa ...198416663365
comparative phytochrome immunochemistry as assayed by antisera against both monocotyledonous and dicotyledonous phytochrome.preparation and characterization of antisera against lettuce (lactuca sativa l., cv. grand rapids) and pea (pisum sativum l., cv. alaska) phytochrome is described. these antisera, together with previously obtained antisera against zucchini (cucurbita pepo l., cv. black beauty) and oat (avena sativa l., cv. garry) phytochrome, were used to compare by ouchterlony double immunodiffusion phytochrome isolated from etiolated lettuce, pea, bean (phaseolus vulgaris l., cv. taylor horticultural bush), zu ...198216662599
red light-enhanced phytochrome pelletability: re-examination and further light-enhanced pelletability of phytochrome was observed in extracts of all 11 plants tested: avena sativa l., secale cereale l., zea mays l., cucurbita pepo l., sinapis alba l., pisum sativum l., helianthus anuus l., raphanus sativus l., glycine max (l.) merr., phaseolus vulgaris l., and lupinus albus l. this enhanced pelletability was observed in all 11 plants following in situ irradiation (in vivo binding) but only in sinapis and cucurbita after irradiation of crude extracts (in vitro bin ...197616659745
preference of bemisia tabaci biotype b on zucchini squash and buckwheat and the effect of delphastus catalinae on whitefly populations.zucchini squash, cucurbita pepo l., is an important vegetable crop in florida. physiological disorders and insect-transmitted diseases are major problems for squash growers in semi-tropical regions around the world. bemisia tabaci (gennadius) biotype b is a significant whitefly pest and is largely responsible for transmitting viruses and causing physiological disorders in squash. several studies have shown that whitefly populations are reduced when crops are interplanted with non-host cover crop ...201626388111
populations of predators and parasitoids of bemisia tabaci (hemiptera: aleyrodidae) after the application of eight biorational insecticides in vegetable crops.the sweetpotato whitefly, bemisia tabaci (gennadius) (hemiptera: aleyrodidae), is an important pest of vegetables and many other crops worldwide. eight biorational insecticides (based on oil, plant derivatives, insect growth regulator and fungus) were evaluated in the field for their influence on populations of six natural enemies of b. tabaci. natural populations of two predators [chrysoperla carnea stephen (neuroptera: chrysopidae) and orius spp. (hemiptera: anthocoridae)] and two genera of pa ...201121480463
[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 ...200919768274
proton transport and phosphorylation of tonoplast polypeptides from zucchini are stimulated by the phospholipid platelet-activating factor.the ether phospholipid platelet-activating factor and certain similar phospholipids, including lysophosphatidylcholine, are known to stimulate both h(+) transport and protein phosphorylation in plant microsomal membranes. in the present work, several polypeptides in highly purified tonoplast membranes from zucchini (cucurbita pepo l.) showed platelet-activating factor-dependent phosphorylation. comparison of protein phosphorylation in different membrane fractions separated by sucrose step densit ...199216669084
localization of glyoxylate-cycle marker enzymes in peroxisomes of senescent leaves and green cotyledons.crude particulate homogenates from leaves of barley (hordeum vulgare l.), rice (oryza sativa l.), leaf-beet (beta vulgaris var. cicla l.) and pumpkin (cucurbita pepo l.) cotyledons were separated on sucrose density gradients. the peroxisomal fractions appeared at a buoyant density of 1.25 g·cm(-3) and contained most of the activities of catalase (ec, and hydroxypyruvate reductase (ec on the gradients. in peroxisomal fractions from detached leaves and green cotyledons incubate ...199024202025
a new set of regulatory molecules in plants: a plant phospholipid similar to platelet-activating factor stimulates protein kinase and proton-translocating atpase in membrane vesicles.1-o-alkyl-2-acetyl-sn-glycero-3-phosphocholine, an ether phospholipid from mammals known as platelet-activating factor (paf), specifically stimulates proton transport in zucchini (cucurbita pepo l.) microsomes (g.f.e. scherer, 1985, biochem. biophys. res. commm. 133, 1160-1167). when plant lipids were analyzed by two-dimensional thin-layer chromatography a lipid was found with chromatographic properties very similar to the paf (g.f.e. scherer and b. stoffel, 1987, planta, 172, 127-130). this lip ...198824221719
leaf development and phloem transport in cucurbita pepo: transition from import to export.the capacity of a growing leaf blade of cucurbita pepo l. to import (14)c-labelled photoassimilate is lost in a basipetal direction. import into the lamina tip stops when the blade is 10% expanded. development of the leaf progresses linearly with time and the lamina base stops importing when the blade is 45% expanded. export capacity also develops basipetally and follows immediately the loss of import capacity, at least in the lamina base. the small amount of material initially exported from the ...197324468909
membranes markers in highly purified clathrin-coated vesicles from cucurbita hypocotyls.the two plasma-membrane (pm) markers: 1,3-β-glucan synthase and naphthylphthalamic-acid-binding capacity are localized in two peaks of activity on isopycnic ficoll/d2o gradients prepared from a zucchini (cucurbita pepo l.) hypocotyl post-microsomal fraction. the denser peak overlaps with the major distribution of clathrin and represents a region of the gradient enriched in coated vesicles (cv). further purification of the pooled cv-fractions has shown that these pm marker activities are not born ...199124193754
differential uptake and translocation of β-hch and dieldrin by several plant species from hydroponic compare the uptake and translocation of hydrophobic organic chemicals by plant species, the authors performed uptake experiments with β-1,2,3,4,5,6-hexachlorocyclohexane (β-hch) and 1,2,3,4,10,10-hexachloro-6,7-epoxy-1,4,4a,5,6,7,8,8a-octahydro-endo-1,4-exo-5,8-dimethanonaphthalene (dieldrin) using 5 species: hordeum vulgare, glycine max, solanum lycopersicum, brassica oleracea, and cucurbita pepo. the present study evaluated uptake ability using root concentration factor (rcf) and translocat ...201525470472
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 ...201020872691
[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 ...200717552217
b-type cytochromes in higher plant plasma membranes.the composition and characteristics of b-type cytochromes from higher plant plasma membranes, purified using aqueous two-phase partitioning, were investigated. at least three different cytochromes were identified by their wavelength maxima and redox midpoint potentials (e(0)'). cytochrome b-560.7 (e(0)' from + 110 to + 160 millivolts) was present in zucchini (cucurbita pepo) hypocotyls and bean (phaseolus vulgaris l.) hooks, although in different concentrations. the main component in cauliflower ...198916666854
dieldrin uptake and translocation in plants growing in hydroponic 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 ...201020821429
agroindustrial compost as a peat alternative in the horticultural industry of ecuador.this work was conducted in order to investigate the possibility of using different agroindustrial composts in the production of horticultural seedlings, thereby replacing part of the peat in the growing media. three vegetable species differing in salt sensitivity - tomato (solanum lycopersicum l. var. malpica) (the least sensitive), courgette (cucurbita pepo l. var. mastil f1) (moderately sensitive) and pepper (capsicum annuum l. var. largo de reus pairal) (the most sensitive) - were grown in ni ...201727815007
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, ...201019760110
effect of home freezing and italian style of cooking on antioxidant activity of edible 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 ...200819241586
plant growth, phosphorus nutrition, and root morphological responses to arbuscular mycorrhizas, phosphorus fertilization, and intraspecific density.we examined the effects of arbuscular mycorrhizas (am), phosphorus fertilization, intraspecific density, and their interaction, on the growth, phosphorus uptake, and root morphology of three facultative mycotrophic crops (capsicum annuum, zea mays, and cucurbita pepo). plants were grown in pots with or without am at three densities and four phosphorus availabilities for 10 weeks. am colonization, plant weight, and shoot phosphorus concentration were measured at harvest. root morphology was asses ...200515316886
respiratory metabolism in virus-infected capsicum annuum l. & cucurbita pepo l. 19695359094
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 ...200720334596
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 ...201020483449
[purification of peroxidases and separation of isoperoxidases from various plant species (author's transl)].the partial purification of peroxidase (ec. and separation of isoperoxidases by disc electrophoresis from cucurbita pepo l., phaseolus vulgaris l., cicer arietinum l. and hordeum, secale and triticum sp., have been studied. peroxidase from fruit of pumpkin and from 6-day-old coleoptiles of french bean and chick pea has been partially purified, 128-, 174-, and 140-fold, respectively. the apparent km at the optimum ph were: pumpkin (epicarp.), 2.7 x 10(-4) m; barley, common rye and wheat ...1977897327
novel edible oil sources: microwave heating and chemical properties.the aim of this work was to investigate the effect of various microwave heating times (1, 3, 5, 10, and 15min) on the chemical properties of novel edible oil sources, including mashhadi melon (cucumis melo var. iranians cv. mashhadi), iranian watermelon (citrullus lanatus cv. fire fon), pumpkin (cucurbita pepo subsp. pepo var. styriaca), and yellow apple (malus domestica cv. golden delicious) seed oils. the evaluated parameters were peroxide value (pv), conjugated diene (cd) and triene (ct) valu ...201728290292
oviposition preferences of pickleworm (lepidoptera: crambidae) in relation to a potential push-pull cropping management approach.pickleworm, diaphania nitidalis cramer (lepidoptera: crambidae), is a major pest of cucurbits. the current management approach for this pest is weekly insecticide applications. a push-pull cropping approach may be an alternative management practice and could reduce reliance on pesticides. one potential push-pull scenario is the use of squash (cucurbita pepo l.) as a trap crop and watermelon (citrullus lanatus [thunb.] matsum. & nakai) as a deterrent intercrop to manage pickleworm on cantaloupe ( ...201627118111
structure, evolution and functional inference on the mildew locus o (mlo) gene family in three cultivated cucurbitaceae spp.the powdery mildew disease affects thousands of plant species and arguably represents the major fungal threat for many cucurbitaceae crops, including melon (cucumis melo l.), watermelon (citrullus lanatus l.) and zucchini (cucurbita pepo l.). several studies revealed that specific members of the mildew locus o (mlo) gene family act as powdery mildew susceptibility factors. indeed, their inactivation, as the result of gene knock-out or knock-down, is associated with a peculiar form of resistance, ...201526715041
developmental biology of zeugodacus cucurbitae (diptera: tephritidae) in three cucurbitaceous hosts at different temperature regimes.fruit flies are key pests of cucurbits in many parts of the world, including tanzania. developmental biology of zeugodacus cucurbitae (coquillett) has been determined across temperature regimes in some cucurbitaceous hosts, in limited geographies. this study was conducted to determine duration and survival rates of immature stages of z. cucurbitae in three cucurbitaceous hosts, at different temperature regimes. it was hypothesized that temperature and cucurbitaceous hosts influence duration and ...201526589874
biology of anastrepha grandis (diptera: tephritidae) in different cucurbits.anastrepha grandis (macquart) (diptera: tephritidae) is one of the main pests of cucurbits in brazil. losses occur due to the damage caused to the fruits and the embargo on exports, as a. grandis is considered a quarantine pest in countries that import brazilian cucurbits. this study aimed to evaluate the development of a. grandis in hosts of the cucurbitaceae family. the hosts used were stem squash (cucurbita pepo l.), squash (cucurbita moschata duchesne), chayote [sechium edule (jacq.) swartz] ...201526470226
characterization of conserved micrornas from five different cucurbit species using computational and experimental analysis.micrornas (mirnas) are ∼21 nt non-coding small rnas which regulate gene expression at the post-transcriptional level in plants and animals. until recently, only limited numbers of mirnas were identified in cucurbitaceae, a large flowering plant family. in this study, 220 potential mirna candidates were identified from five species of cucurbitaceae family using a comparative genome-based computational analysis. a comprehensive bioinformatic analysis of est (expressed sequence tag) and gss (genomi ...201424657600
a major latex-like protein is a key factor in crop contamination by persistent organic pollutants.this is the first report, to our knowledge, to reveal important factors by which members of the cucurbitaceae family, such as cucumber (cucumis sativus), watermelon (citrullus lanatus), melon (cucumis melo), pumpkin (cucurbita pepo), squash (c. pepo), and zucchini (c. pepo), are selectively polluted with highly toxic hydrophobic contaminants, including organochlorine insecticides and dioxins. xylem sap of c. pepo ssp. pepo, which is a high accumulator of hydrophobic compounds, solubilized the hy ...201323404917
characterization of the small rna component of leaves and fruits from four different cucurbit species.micrornas (mirnas) are a class of non-coding small rnas involved in post-transcriptional regulation of gene expression critical for plant growth and development, stress responses and other diverse biological processes in plants. the cucurbitaceae or cucurbit family represents some of economically important species, particularly those with edible and medicinal fruits. genomic tools for the molecular analysis of members of this family are just emerging. partial draft genome sequence became availab ...201222823569
accumulation of weathered pp'-dde in xylem sap of grafted watermelon.movement of weathered p,p'-dichlorodiphenyldichloroethane (p,p'-dde) from contaminated soil to the rhizosphere pore water to the xylem sap of grafted watermelon was studied under green house conditions. p,p'-dde concentrations in pore water and xylem sap was compared in intact plants, homografted, and compatible heterografts of cucurbita pepo spp. pepo and citrullus lanatus plants. an average p,p'-dde concentrations in pore water of contaminated soil ranged from 0.36 microg/l to 0.55 microg/l an ...201222567720
determination of the melon chloroplast and mitochondrial genome sequences reveals that the largest reported mitochondrial genome in plants contains a significant amount of dna having a nuclear origin.the melon belongs to the cucurbitaceae family, whose economic importance among vegetable crops is second only to solanaceae. the melon has a small genome size (454 mb), which makes it suitable for molecular and genetic studies. despite similar nuclear and chloroplast genome sizes, cucurbits show great variation when their mitochondrial genomes are compared. the melon possesses the largest plant mitochondrial genome, as much as eight times larger than that of other cucurbits.201121854637
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 ...201020118192
increased arginine biosynthesis during phosphorus deficiency : a response to the increased ammonia content of leaves.the accumulation of arginine in leaves of four citrus rootstock cultivars during p deficiency has been demonstrated to be due to increased de novo synthesis rather than decreased catabolism or increased protein degradation (e rabe, cj lovatt, 1984, plant physiol 76: 747-752). in this report, we provide evidence (a) that the increased activity of the arginine biosynthetic pathway observed for citrus rootstocks grown under p-deficient conditions for 7 months is due to an increase in the concentrat ...198616664901
releases of psyttalia fletcheri (hymenoptera: braconidae) and sterile flies to suppress melon fly (diptera: tephritidae) in hawaii.ivy gourd, coccinia grandis (l.) voigt, patches throughout kailua-kona, hawaii island, hi, were identified as persistent sources of melon fly, bactrocera cucurbitae (coquillett). these patches had a low incidence of psyttalia fletcheri (silvestri), its major braconid parasitoid natural enemy in hawaii, and were used to evaluate augmentative releases of p. fletcheri against melon fly. in field cage studies of releases, numbers of melon flies emerging from ivy gourd fruit placed inside treatment c ...200415568340
amino acid sequence of the 26 kda subunit of legumin-type seed storage protein of common buckwheat (fagopyrum esculentum moench): molecular characterization and phylogenetic analysis.the paper describes the amino acid sequence of a 26 kda basic subunit of 13s globulin of common buckwheat (fagopyrum esculentum moench). the protein has 93 and 75% sequence homology with 11s globulin of coffea arabica and beta subunit of 11s globulin of cucurbita pepo respectively. the subunit has the "globally conserved" n-terminal sequence consisting of gly-ile-asp-glu and the cysteine at p7' from the proteolytic processing site. a conserved 7 residue domain of pro-his-trp-asn-ile-asn-ala, cha ...200312657290
regulation of purine metabolism in intact leaves of coffea arabica.the capacity of coffea arabica leaves (5- x 5-mm pieces) to synthesize de novo and catabolize purine nucleotides to provide precursors for caffeine (1,3,7-trimethylxanthine) was investigated. consistent with de novo synthesis, glycine, bicarbonate, and formate were incorporated into the purine ring of inosine 5[prime]-monophosphate (imp) and adenine nucleotides ([sigma]ade); azaserine, a known inhibitor of purine de novo synthesis, inhibited incorporation. activity of the de novo pathway in c. a ...199312232012
heat and mass transfer in deep-frying of pumpkin, sweet potato and taro.heat and mass transfer parameters, effective thermal diffusivity, heat transfer coefficient, effective moisture diffusivity and moisture transfer coefficient-for pumpkin (cucurbita pepo), sweet potato (ipomoea batatas) and taro (colocasia esculenta) under deep-frying conditions were determined by fitting experimental data on transient values of temperature and moisture content to the solution of the standard diffusion equation in cylindrical coordinates as modified by dincer (heat mass transfer ...201023572697
species and genus specificity of the intergenic spacer (igs) in the ribosomal rna genes of cucurbitaceae.the use of intergenic spacer (igs) fragments of plant ribosomal dna (rdna) for the differentiation between genera and species is tested by cross-hybridization experiments with different igs probes of two cucurbitaceae, cucurbita pepo (zucchini) and cucumis sativus (cucumber). hybridization with cloned fragments of different parts of the igs of ribosomal dna exhibit a different degree of conservation within and between the cucurbitaceae genera. in general, cucurbita species seem to be closer rela ...20092631730
a lectin from the exudate of the fruit of the vegetable marrow (cucurbita pepo) that has a specificity for beta-1,4-linked n-acetylglucosamine oligosaccharides.lectins are present in the exudate (presumably from the phloem) of the fruits of three species of the cucurbitaceae, namely vegetable marrow (cucurbita pepo), melon (cucumis melo) and cucumber (cucumis sativus). they are all strongly inhibited in their activities by chitin oligosaccharides, but only weakly by n-acetylglucosamine. glycopeptides from soya-bean agglutinin and fetuin are also strong inhibitors of cucurbita pepo lectin, indicating that it interacts with internal n-acetylglucosamine r ...1979534476
light-dependent emission of hydrogen sulfide from plants.with the aid of a sulfur-specific flame photometric detector, an emission of volatile sulfur was detected from leaves of cucumber (cucumis sativus l.), squash and pumpkin (cucurbita pepo l.), cantaloupe (cucumis melo l.), corn (zea mays l.), soybean (glycine max [l.] merr.) and cotton (gossypium hirsutum l.). the emission was studied in detail in squash and pumpkin. it occurred following treatment of the roots of plants with sulfate and was markedly higher from either detached leaves treated via ...197816660257
zinc finger protein genes from cucurbita pepo are promising tools for conferring non-cucurbitaceae plants with ability to accumulate persistent organic pollutants.some cultivars of cucumbers, melons, pumpkins, and zucchini, which are members of the cucurbitaceae family, are uniquely subject to contamination by hydrophobic pollutants such as the organohalogen insecticides ddt. however, the molecular mechanisms for the accumulation of these pollutants in cucurbits have not been determined. here, cdna subtraction analysis of cucurbita pepo cultivars that are low and high accumulators of hydrophobic contaminants revealed that a gene for zinc finger proteins ( ...201525532761
cucurbita spp. and cucumis sativus enhance the dissipation of polychlorinated biphenyl congeners by stimulating soil microbial community development.a number of cucurbita species have the potential to extract polychlorinated biphenyls (pcbs) from soil, but their impact on the soil microbial communities responsible for pcb degradation remains unclear. a greenhouse experiment was conducted to investigate the effect of three cucurbita and one cucumis species on pcb dissipation and soil microbial community structure. compared to the unplanted control, enhanced losses of pcbs (19.5%-42.7%) were observed in all planted soils. cucurbita pepo and cu ...201424077568
boron excess affects photosynthesis and antioxidant apparatus of greenhouse cucurbita pepo and cucumis sativus.this study aimed to evaluate the behavior of zucchini (cucurbita pepo l.) and cucumber (cucumis sativus l.) under boron (b) excess. plants were grown under greenhouse conditions in a sandy soil-peat mixture using a nutrient solution containing 0.2 (control), 10 and 20 mg l(-1) b. visible symptoms were quantified and leaf b accumulation, gas exchanges, chlorophyll (chl) a fluorescence, malondialdehyde by-products and antioxidants were investigated 20 days after the beginning of the treatments. bo ...201323779070
development and characterization of polymorphic microsatellite markers in momordica charantia (cucurbitaceae). 201021616876
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 ...200718020671
phytoextraction of excess soil the search for a suitable plant to be used in p phytoremediation, several species belonging to legume, vegetable and herb crops were grown in p-enriched soils, and screened for p accumulation potentials. a large variation in p concentrations of different plant species was observed. some vegetable species such as cucumber (cucumis sativus) and yellow squash (cucurbita pepo var. melopepo) were identified as potential p accumulators with >1% (dry weight) p in their shoots. these plants also disp ...200716904249
influence of citric acid amendments on the availability of weathered pcbs to plant and earthworm species.a series of small and large pot trials were conducted to assess the phytoextraction potential of several plant species for weathered polychlorinated biphenyls (pcbs) in soil (105 microg/g arochlor 1268). in addition, the effect of citric acid on pcb bioavailability to both plants and earthworms was assessed. under small pot conditions (one plant, 400 g soil), three cucurbits (cucurbita pepo ssp pepo [zucchini] and ssp ovifera [nonzucchini summer squash], cucumis sativus, cucumber) accumulated up ...200616615308
accumulation of weathered polycyclic aromatic hydrocarbons (pahs) by plant and earthworm species.experiments were conducted to assess the bioavailability of polyclycic aromatic hydrocarbons (pahs) in soil from a manufactured gas plant site. three plant species were cultivated for four consecutive growing cycles (28 days each) in soil contaminated with 36.3 microg/g total pah. during the first growth period, cucurbita pepo ssp. pepo (zucchini) tissues contained significantly greater quantities of pahs than did cucumis sativus (cucumber) and cucurbita pepo ssp. ovifera (squash). during the fi ...200616337258
influence of nutrient amendments on the phytoextraction of weathered 2,2-bis(p-chlorophenyl)-1,1-dichloroethylene by cucurbits.field experiments were conducted to determine the impact of nutrient amendments on the phytoextraction of weathered 2,2-bis(p-chlorophenyl)-1,1-dichloroethylene (p,p '-dde) by eight cultivars of cucurbits over a single growing season. four cultivars of cucurbita pepo ssp pepo are accumulators and extract percent level quantities of persistent organic pollutants (pops), whereas c. pepo ssp ovifera and cucumis sativus are nonaccumulators. the nonamended accumulators phytoextracted 1.0% of the p,p' ...200515839575
phytoextraction of weathered p,p'-dde by zucchini (cucurbita pepo) and cucumber (cucumis sativus) under different cultivation conditions.previous studies have shown that zucchini (cucurbita pepo) and cucumber (cucumis sativus) under field conditions are good and poor accumulators, respectively, of persistent organic pollutants from soil. here, each species was grown under three cultivation regimes: dense (five plants in 5 kg soil): nondense (one plant in 80 kg soil): and field conditions (two to three plants in approximately 789 kg soil). p,p'-dde and inorganic element content in roots, stems, leaves, and fruit were determined. i ...200415696707
plant uptake and translocation of highly weathered, soil-bound technical chlordane residues: data from field and rhizotron has been observed that plants are susceptible to uptake from soil and in planta transport of technical chlordane, in spite of its hydrophobicity and sequestration within the soil matrix due to weathering. field and rhizotron studies were conducted with cucurbitaceae planted in highly weathered, chlordane-contaminated soil to investigate details of soil-to-plant contaminant uptake. in the field-work, cucurbita pepo l. (zucchini) was grown in soil at four levels of chlordane contamination: clea ...200415559292
differential bioavailability of field-weathered p,p'-dde to plants of the cucurbita and cucumis genera.field experiments were conducted to assess the bioavailability of weathered p,p'-dde in soil to plants in the cucurbita (squash, pumpkin) and cucumis (cucumber, melon) genera. as expected, significant variability exists in the uptake of p,p'-dde between plants of different genera. root:soil concentration factors, defined as the ratio of p,p'-dde (ng/g, dry weight) in the roots to that in the soil, approach 1.8 for cucumbers/melons and 16 for squash/pumpkin. however, significant differences were ...200212375861
molecular evolution of the intergenic spacer in the nuclear ribosomal rna genes of cucurbitaceae.the intergenic spacer (igs) of a 10-kbp repeat (clone prz7d) of the nuclear 18s, 5.8s, and 25s ribosomal rna genes of cucurbita pepo (zucchini) was sequenced and compared to the igs sequences of two other cucurbitaceae, curcurbita maxima (squash), and cucumis sativus (cucumber). the nucleotide sequence and the structural organization of the igs of c. pepo and c. maxima are rather similar (between 75 and 100% sequence similarity depending on the region compared). the igs are mainly composed of th ...19938433383
a cucumber mount for the preparation of histological sections of the small intestine of rodents.a method for orientation of formaldehyde-fixed intestinal tissue from mink puppies (mustela vision) is described. sections of the intestine were glued to dehydrated slices of cucumber (cucumis sativus l. or cucurbita pepo l.) with egg albumin. this cucumber-intestine unit was processed in a routine way. embedding in paraplast was facilitated thereby ensuring a correct orientation of the tissue.19902191529
characterization of repetitive elements in several cucurbita species.about 1.3×10(5) copies of a tandemly arranged, 351 base pair element constitute from 4 to 8% of the cucurbita pepo genome. a homologous, high copy number repetitive element is present in the genomes of c. moschata and c. foetidissima, but not in c. maxima or cucumis sativus. array lengths of at least 65 members have been detected for c. pepo, and 140 for c. moschata. the nucleotide sequence of six c. pepo repeat units were determined and each was found to be unique, differing from the others at ...198724301312
developmental changes in the potential for h(2)s emission in cucurbit plants.based on results obtained with leaf discs exposed to sulfate, leaves on cucurbit plants (cucurbita pepo l. cv small sugar pumpkin and cucumis sativus cv chipper) 1 to 2.5 weeks old have a low potential for h(2)s emission (less than 10 picomoles per min per cm(2) leaf area) in response to sulfate, whereas discs from most of the leaves on plants 3 to 4 weeks old emit h(2)s at a higher rate (50 to 150 picomoles per min per cm(2) leaf area). this difference is determined by the age of the plant, and ...198316662816
individual quantitative rdna variation in three species of the cucurbitaceae family.individual quantitative variation in rdna content within three species of the cucurbitaceae family has been studied by rrna/dna filter hybridization experiments. the results showed a 2.3-fold range of variation in the number of ribosomal cistrons per diploid cell in an ecballium elaterium natural population. this range of variation is compared with the smaller range observed in three cucumis sativus and in two cucurbita pepo varieties obtained as f1 hybrids between pure lines.19807437009
mechanisms of resistance to sulfur dioxide in the cucurbitaceae.the relative resistance of four cultivars of the cucurbitaceae (cucumis sativus l. cv. national pickling, and inbred line sc 25; cucurbita pepo l. cv. prolific straightneck squash, and cv. small sugar pumpkin) to so(2) was determined. according to plots of the degree of exposure to so(2) (which depends on the so(2) concentration and the duration of the exposure), there is an 8-fold difference in resistance to this toxic gas among these cultivars. however, if the degree of injury is plotted as a ...197816660380
[interaction of ascorbate oxidase with inorganic anions].from the peelings of cucumber cucumis sativus and marrow squash cucurbita pepo var. giramontia highly purified ascorbate oxidase preparations were obtained. molecular weights, optical and epr spectra, total copper contents and different type copper contents of the both proteins were similar. the effects of nan3, kcn, i- and f- on the optical and epr spectra of the proteins were studied. the incubation of ascorbate oxidase with these anions lead to the partial reduction of the copper. the data ob ...1977588636
thigmomorphogenesis: the response of plant growth and development to mechanical stimulation : with special reference to bryonia dioica.when young plants of hordeum vulgare. bryonia dioica. cucumis sativus. phaseolus vulgaris. mimosa pudica. and ricinus communis. were given a gentle mechanical stimulus by rubbing the internodes for about 10 s once or twice daily, elongation was significantly retarded. plants of cucurbita pepo pisum sativum and triticum aestivum did not exhibit any such response. the initial response to rubbing was very rapid, elongation stopping less than 3 min after application of the stimulus. when the stimulu ...197324458719
[gel filtration of ascorbic acid oxidase in cucumbers (cucurbita pepo)]. 19674971157
reassessing coxcatlan cave and the early history of domesticated plants in mesoamerica.reanalysis and direct accelerator mass spectrometry radiocarbon dating of the cucurbit assemblage from coxcatlan cave provide information on the timing and sequence of the initial appearance of three domesticated plants in the tehuacán valley (puebla, mexico) and allow reassessment of the overall temporal context of plant domestication in mexico. cucurbita pepo is the earliest documented domesticate in the cave, dating to 7,920 calibrated calendrical (cal) years b.p. the bottle gourd (lagenaria ...200515908505
phylogenetic relationships among domesticated and wild species of cucurbita (cucurbitaceae) inferred from a mitochondrial gene: implications for crop plant evolution and areas of origin.we have investigated the phylogenetic relationships among six wild and six domesticated taxa of cucurbita using as a marker an intron region from the mitochondrial nad1 gene. our study represents one of the first successful uses of a mtdna gene in resolving inter- and intraspecific taxonomic relationships in angiosperms and yields several important insights into the origins of domesticated cucurbita. first, our data suggest at least six independent domestication events from distinct wild ancesto ...200211782554
sequence variations in the fad2 gene in seeded pumpkins.seeded pumpkins are important economic crops; the seeds contain various unsaturated fatty acids, such as oleic acid and linoleic acid, which are crucial for human and animal nutrition. the fatty acid desaturase-2 (fad2) gene encodes delta-12 desaturase, which converts oleic acid to linoleic acid. however, little is known about sequence variations in fad2 in seeded pumpkins. twenty-seven fad2 clones from 27 accessions of cucurbita moschata, cucurbita maxima, cucurbita pepo, and cucurbita ficifoli ...201526782391
pumpkin seed oil extracted from cucurbita maxima improves urinary disorder in human overactive bladder.the pumpkin seed oil obtained from cucurbita pepo has been shown to be useful for the treatment of nocturia in patients with urinal disorders in several western countries. in this study, we evaluated the effect of the pumpkin seed oil from cucurbita maxima on urinary dysfunction in human overactive bladder (oab). forty-five subjects were enrolled in this study. an extract of pumpkin seed oil from c. maxima (10 g of oil/day) was orally administrated for 12 weeks. after 6 and 12 weeks, urinary fun ...201424872936
characteristics of organic acids in the fruit of different pumpkin species.the aim of the research was to determine the composition of organic acids in fruit of different cultivars of three pumpkin species. the amount of acids immediately after fruit harvest and after 3 months of storage was compared. the content of organic acids in the examined pumpkin cultivars was assayed using the method of high performance liquid chromatography (hplc). three organic acids (citric acid, malic acid, and fumaric acid) were identified in the cultivars, whose content considerably varie ...201424262577
characteristics of antioxidant activity and composition of pumpkin seed oils in 12 cultivars.the objective of this study was to determine the antioxidant properties, and provide characteristics, of the oil obtained from the seeds of 12 pumpkin varieties belonging to the species cucurbita maxima duch. and cucurbita pepo l. another objective was to establish which of the two extracting agents, ethanol or methanol, is more effective. the seeds of the pumpkin varieties examined differ in chemical composition and antioxidant activity. the seeds of the cultivars belonging to the species c. ma ...201323561092
hplc-dad-ms(n) characterisation of carotenoids from apricots and pumpkins for the evaluation of fruit product authenticity.carotenoids including carotenoid esters from six apricot (prunus armeniaca l.) cultivars and from eight cultivars from three pumpkin species (cucurbita maxima duch., cucurbita pepo l., and cucurbita moschata duch.) were extracted without saponification, separated on a c-30 reversed-phase column and characterised by high-performance liquid chromatography/atmospheric pressure chemical ionisation-mass spectrometry (lc-ms). the predominant free carotenoids were quantified by hplc with diode array de ...200826049248
qualitative and quantitative differences in carotenoid composition among cucurbita moschata, cucurbita maxima, and cucurbita pepo.squashes and pumpkins are important dietary sources of carotenoids worldwide. the carotenoid composition has been determined, but reported data have been highly variable, both qualitatively and quantitatively. in the present work, the carotenoid composition of squashes and pumpkins currently marketed in campinas, brazil, were determined by hplc-dad, complemented by hplc-ms for identification. cucurbita moschata 'menina brasileira' and c. moschata 'goianinha' had similar profiles, with beta-carot ...200717444652
differences in p,p'-dde bioaccumulation from compost and soil by the plants cucurbita pepo and cucurbita maxima and the earthworms eisenia fetida and lumbricus terrestris.two plant species, cucurbita pepo and cucurbita maxima, and two earthworm species, eisenia fetida and lumbricus terrestris, were exposed to soil and compost with equivalent p,p'-dde contamination. pollutant bioconcentration was equal in plant roots in both media, but translocation was higher in c. pepo. bioaccumulation by e. fetida was approximately 6- and 3-fold higher than that by l. terrestris in the soil and compost, respectively. for all species, p,p'-dde uptake was significantly greater fr ...200717241722
phenolic profiles of raw apricots, pumpkins, and their purees in the evaluation of apricot nectar and jam authenticity.the possibility of proving the undeclared addition of pumpkin puree in apricot nectars and jams has been investigated by using the phenol compound fingerprint and sensory evaluation. the cheaper pumpkin admixtures in apricot nectars and jams could not be detected by the sensory evaluation, particularly if present in quantities of <15%. the lower admixtures of pumpkin puree in apricot nectars and jams could be detected by the presence of syringic acid, a phenolic compound characteristic of the in ...200515941324
multi-species interactions impact the accumulation of weathered 2,2-bis (p-chlorophenyl)-1,1-dichloroethylene (p,p'-dde) from soil.the impact of interactions between the earthworms eisenia foetida and lumbricus terrestris and the plants cucurbita pepo and cucurbita maxima on the uptake of weathered p,p'-dde from soil was determined. although some combinations of earthworm and plant species caused significant changes in the p,p'-dde burden in both organisms, the effects were species specific. contaminant bioconcentration in c. pepo was increased slightly by e. foetida and by 3-fold when the plant was grown with l. terrestris ...200515913856
characterization and sequencing of cdna clone encoding the phloem protein pp2 of cucurbita n-terminal amino acid sequencing of the phloem protein 2 (pp2) from 3-month old cucurbita pepo l. (pumpkin), purified by sds-page and blotted onto pvdf membrane, showed that the protein had a blocked n-terminus. however, after in situ cleavage of the polypeptide in a gel slice by cyanogen bromide, 75 residues of sequences on two cyanogen bromide fragments were determined. an oligonucleotide probe based on this amino acid sequence was used to screen a cdna library, constructed from mrna of ...19948111014
different at-rich satellite dnas in cucurbita pepo and cucurbita maxima.the at-rich highly repeated satellite dna of cucurbita pepo (zucchini) and cucurbita maxima (pumpkin) were cloned and their dna structure was investigated. dna sequencing revealed that the repeat length of satellite dna in cucurbita pepo is 349-352 base pairs. the percentage of at-base pairs is about 61%. this satellite is highly conserved in restriction enzyme pattern and dna sequence; sequence heterogeneity is about 10%. in contrast, the satellite dna of cucurbita maxima has a repeat length of ...198624240758
preparation and characteristics of trypsin inhibitors from the seeds of squash (cucurbita maxima) and zucchini (cucurbita pepo var. giromontia).one trypsin inhibitor (i) from zucchini seeds and two (i and iii) from squash seeds were isolated by ammonium sulphate salting out and chromatography on sp-sephadex c-25 and immobilized trypsin. the inhibitors have the same molecular mass, about 3300, contain 29 amino acids, have three disulphide bridges, and lack thr, phe and trp. the isoelectric point of the zucchini inhibitor i and squash inhibitor i is of 5.6, whereas that of the squash inhibitor iii--of 8.3. arg is the n-terminal amino acid ...19836868907
filament formation in vitro of a sieve tube protein from cucurbita maxima and cucurbita pepo.phloem proteins of the sieve tube exudate from cucurbita maxima duch. and cucurbita pepo l. were investigated as to their filament forming ability in vitro. from the two main proteins (116000 dalton, 30000 dalton) only the 116000 dalton protein was found to form reversibly distinct filaments of 6-7 nm diameter upon removal of sh-protecting agents from the buffer, whereas the 30000 dalton protein was precipitated as amorphous material under these conditions. the protein filaments were similar to ...197524430373
[spectrophotometric analysis of phytochrome in the embryo of cucurbita pepo and cucurbita maxima].phytochrome detection and △ (△o.d.) measurements were made for the first time in a single embryo of pumpkin or gourd thanks to an apparatus adjusted to the differential spectrophotometer constructed by dr. spruit (wageningen). observed △ (△o.d.) values are comparable with usual values obtained by analysis of several seeds in a cuvette. the differential spectrum obtained has the same characteristics as the spectra of seedlings and seeds which can be found in the present literature. the time cours ...197024499981
cultivar-based introgression mapping reveals wild species-derived pm-0, the major powdery mildew resistance locus in squash.powdery mildew is a major fungal disease on squash and pumpkin (cucurbita spp.) in the us and throughout the world. genetic resistance to the disease is not known to occur naturally within cucurbita pepo and only infrequently in cucurbita moschata, but has been achieved in both species through the introgression of a major resistance gene from the wild species cucurbita okeechobeensis subsp. martinezii. at present, this gene, pm-0, is used extensively in breeding, and is found in nearly all powde ...201627936008
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 ...200818956020
[immunocytological localization of iaa in the parenchyma cell and vascular elements in the graft union of cucurbita pepo/cucurbita moschata at the early developmental stage].immuno-gold localization of iaa in cells of the graft union in the explant internode graft of cucurbita pepo/cucurbita moschata were investigated with electron microscopy. in parenchyma cells near the graft union, the gold particles were mainly accumulated in nucleus, plastid and endoplasmic reticulum, while no gold particles was detected in golgi body, mitochondrion, cell wall and vacuoles. in the differentiating xylem element, the gold particles were labeled in secondary wall and cytoplasm. in ...200012548981
the regulation of gelation of phloem exudate from cucurbita fruit by dilution, glutathione, and glutathione reductase.the average glutathione equivalent concentration in phloem exudate collected from squash fruit (cucurbita moschata [duchesne] poir. var butternut) and pumpkin fruit (cucurbita pepo [l.] var jack-o-lattern) was 1.02 and 0.60 millimolar, respectively. glutathione reductase (ec activity in phloem exudate from squash and pumpkin fruit averaged 0.48 and 1.74 micromole nadph oxidized per minute per milliliter, respectively. protein concentrations in fruit phloem exudates averaged 67 milligram ...198816666036
antioxidative activities and phenolic compounds of pumpkin (cucurbita pepo) seeds and amaranth (amaranthus caudatus) grain extracts.phenolic compounds were extracted from pumpkin (cucurbita pepo) seed and amaranth (amaranthus caudatus) grain into 80% (v/v) methanol. the extracts obtained were characterised by the contents of total phenolic compounds (tpc), trolox equivalent antioxidant capacity (teac), ferric-reducing antioxidant power (frap) and antiradical activity against 2,2-diphenyl-1-picrylhydrazyl (dpph(·)) radical. the content of individual phenolic compounds was determined by hplc-dad method. pumpkin seeds showed th ...201728114838
an snp-based saturated genetic map and qtl analysis of fruit-related traits in zucchini using genotyping-by-sequencing.cucurbita pepo is a cucurbit with growing economic importance worldwide. zucchini morphotype is the most important within this highly variable species. recently, transcriptome and simple sequence repeat (ssr)- and single nucleotide polymorphism (snp)-based medium density maps have been reported, however further genomic tools are needed for efficient molecular breeding in the species. our objective is to combine currently available complete transcriptomes and the zucchini genome sequence with hig ...201728100189
colonic perforation in a young tetraplegic male caused by zucchini.colonic perforation is a clinical condition which occurs due to variety of reasons, such as intrinsic disorders of the intestine, extrinsic causes, but also due to presence of foreign bodies. foreign objects enter gastrointestinal tract by oral or transanal introduction.201627994305
involvement of α-, γ- and δ-tocopherol isomers from
pumpkin (cucurbita pepo l.) seed oil or oil mixtures in
the biphasic dpph˙ disappearance kinetics.the antioxidant activity of three types of pumpkin seed oil or oil mixtures (cold- -pressed, produced from roasted seed paste and salad) produced in the northern part of croatia and the kinetics of their behaviour as free radical scavengers were investigated using dpph˙. in addition, the involvement of oil tocopherol isomers (α-, γ- and δ-) in different steps of dpph˙ disappearance and their impact on the rate of reaction were analysed. the kinetics of dpph˙ disappearance is a two-step process. ...201627904410
comparison of enzymatic and ultrasonic extraction of albumin from defatted pumpkin (cucurbita pepo)
seed this study, ultrasound- and enzyme-assisted extractions of albumin (water-soluble protein group) from defatted pumpkin (cucurbita pepo) seed powder were compared. both advanced extraction techniques strongly increased the albumin yield in comparison with conventional extraction. the extraction rate was two times faster in the ultrasonic extraction than in the enzymatic extraction. however, the maximum albumin yield was 16% higher when using enzymatic extraction. functional properties of the p ...201527904383
radioprotective potential of lagenaria siceraria extract against radiation-induced gastrointestinal injury.the cucurbits (prebiotics) were investigated as novel agents for radio-modification against gastrointestinal injury. the cell-cycle fractions and dna damage were monitored in hct-15 cells. a cucurbit extract was added to culture medium 2 h before irradiation (6 gy) and was substituted by fresh medium at 4 h post-irradiation. the whole extract of the fruits of lagenaria siceraria, luffa cylindrica, or cucurbita pepo extract enhanced g2 fractions (42%, 34%, and 37%, respectively) as compared with ...201627863208
comparative analysis of cucurbita pepo metabolism throughout fruit development in acorn squash and oilseed pumpkin.both the fruit mesocarp and the seeds of winter squash can be used for consumption, although the focus of breeding efforts varies by cultivar. cultivars bred for fruit consumption are selected for fruit mesocarp quality traits such as carotenoid content, percent dry matter, and percent soluble solids, while these traits are essentially ignored in oilseed pumpkins. to compare fruit development in these two types of squash, we sequenced the fruit transcriptome of two cultivars bred for different p ...201627688889
evaluation of anthelmintic activity and composition of pumpkin (cucurbita pepo l.) seed extracts-in vitro and in vivo studies.a significant number of studies report growing resistance in nematodes thriving in both humans and livestock. this study was conducted to evaluate the in vitro and in vivo anthelmintic efficiency of curcubita pepo (c. pepo) l. hot water extract (hwe), cold water extract (cwe) or ethanol extract (ete) on two model nematodes: caenorhabditis elegans (c. elegans) and heligmosoides bakeri (h. bakeri).201627598135
the role of cucurbita pepo in the management of patients affected by lower urinary tract symptoms due to benign prostatic hyperplasia: a narrative review.phytotherapeutic compounds are largely used in the treatment of lower urinary tract symptoms (luts) related to benign prostatic hyperplasia (bph) due to low side-effect profiles and costs, high level of acceptance by patients and a low rate of dropout. here, we aimed to analyze all available evidence on the role of cucurbita pepo in the treatment of luts-bph.201627377091
application of cavitation system to accelerate aqueous enzymatic extraction of seed oil from cucurbita pepo l. and evaluation of hypoglycemic effect.cavitation-accelerated aqueous enzymatic extraction (caee) of seed oil from cucurbita pepo was performed. an enzyme cocktail comprised of cellulose, pectinase and proteinase can work synergistically in releasing the oil. the caee extraction conditions were optimized by a plackett-burman design followed by a central composite methodology. a maximal extraction yield of 58.06% was achieved under optimal conditions of vacuum degree -0.07, enzyme amount 1.05% and extraction time 69min. as compared to ...201627374549
potential for phytoremediation of pcdd/pcdf-contaminated sludge and sediments using cucurbitaceae plants: a pilot study.the current study evaluates the impact of sewage sludge and urban reservoir sediment on changes in total and toxic equivalency (teq) pcdd/pcdf concentration in soil and phytotoxicity measured using three test species: lepidium sativum, sinapis alba, and sorghum saccharatum, during 5 weeks of cucurbita pepo l. cv 'atena polka' (zucchini) cultivation. 'atena polka' was found to reduce total pcdd/pcdf concentration by 37 % in soil amended with sludge and 32 % in soil treated with sediment from an u ...201627365136
health hazards and heavy metals accumulation by summer squash (cucurbita pepo l.) cultivated in contaminated soils.the present study was carried out to investigate the heavy metal concentration accumulated by summer squash cultivated in contaminated soil and their health hazards for public consumers at south cairo province, egypt. soil and plants were sampled from contaminated and reference farms, using 1 m(2) quadrats, for biomass estimation and nutrient analysis. the daily intake of metals (dim) and health risk index (hri) were estimated. significant differences in soil variables (except as) between contam ...201627344559
italian horticultural and culinary records of summer squash (cucurbita pepo, cucurbitaceae) and emergence of the zucchini in 19th-century milan.summer squash, the young fruits of cucurbita pepo, are a common, high-value fruit vegetable. of the summer squash, the zucchini, c. pepo subsp. pepo zucchini group, is by far the most cosmopolitan. the zucchini is easily distinguished from other summer squash by its uniformly cylindrical shape and intense colour. the zucchini is a relatively new cultivar-group of c. pepo, the earliest known evidence for its existence having been a description in a book on horticulture published in milan in 1901. ...201627343231
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