Publications
| Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
|---|
| [studies on the purgative drugs. iii. on the constituents of the flowers of prunus persica batsch (author's transl)]. | 1977 | 557087 | |
| food allergy: identification of the major ige-binding component of peach (prunus persica). | since peaches are a relatively common cause of food allergy, we set out to identify the allergens involved. with the use of a panel of 48 sera from patients allergic to peach, we demonstrate that most of the allergenicity of that fruit is confined to the skin, rather than to the flesh of peaches, and corresponds to a protein doublet with an estimated molecular weight of 8-10 kd. | 1992 | 1380782 |
| pharmacotherapeutic effects of kuei-chih-fu-ling-wan (keishi-bukuryo-gan) on human uterine myomas. | kuei-chih-fu-ling-wan (keishi-bukuryo-gan; kbg), a traditional chinese herbal remedy contains five components: bark of cinnamomum cassia bl. (lauraceae), root of paeonia lactiflora pall. (paeoniaceae), seed of prunus persica batsch. or p. persiba batsch.var.davidiana maxim. (rosaceae), carpophores of poria cocos wolf. (polyporaceae), and root bark of paeonia suffruticosa andr. (paeoniaceae). this prescription has been frequently used in the treatment of gynecological disorders such as hypermenor ... | 1992 | 1471615 |
| fungitoxic properties of prunus persica oil. | during screening of leaves of 15 higher plant species, the leaves of prunus persica exhibited absolute inhibition of mycelial growth of aspergillus flavus. the active fraction was isolated in form of an essential oil which exhibited fungistatic nature at its minimum inhibitory concentration of 0.1% and showed a broad antifungal range. the oil was found non-phytotoxic to the seedling growth and seed germination of wheat. | 1990 | 2131332 |
| the effect of storage of canned juices on content of the metals fe, cu, zn, pb, sn, al, cd, sb and ni. | the increase in concentration of iron, copper, zinc, lead, antimony, aluminium, cadmium, tin and nickel over a 2 year's time of juices of peach (prunus persica), pear (pyrus communis), apricot (prunus vulgaris) and apple (malus pumila) was determined. the results show a considerable increase in fe, cu, pb, zn and sn with time, while the change in al, cd, ni and sb is negligible. | 1990 | 2366854 |
| diagnosis of allergy to peach. a comparative study of "in vivo" and "in vitro" techniques. | in our particular mediterranean region, extensive plantations of peach trees (prunus persica) give rise to processes of peach hypersensitivity. this datum together with the scarcity of literature and the use of disparate methods of diagnosis prompted us to select the peach as an example of hypersensitivity to a fruit, and to examine the clinical symptoms, skin tests, specific ige antibodies (rastr) and histamine release in a group of 25 patients with peach allergy. the results showed a good conc ... | 2006 | 2459947 |
| hop stunt viroid strains from dapple fruit disease of plum and peach in japan. | viroids have been isolated from plum trees (prunus salicina lindley) affected with plum dapple fruit disease and from peach trees (prunus persica batsch) showing dapple fruit symptoms. the viroids were inoculated mechanically to cucurbitaceous plants, in which symptoms typical of hop stunt viroid (hsv) infection appeared. the complete nucleotide sequences of an isolate from plum and an isolate from peach (af isolate) were shown to be identical, consisting of 297 nucleotides with a 93.6% sequence ... | 1989 | 2732717 |
| [active protein constituents from the kernel of prunus persica]. | 1986 | 2952323 | |
| effects of a chinese herbal medicine, keishi-bukuryo-gan, on the gonadal system of rats. | keishi-bukuryo-gan (tj-25) is a traditional chinese herbal remedy containing five components: bark of cinnamomum cassia, root of paeonia lactiflora, seed of prunus persica or p. persiba var. davidiana, carpophores of poria cocos and root bark of paeonia suffruticosa. this preparation has been used in the treatment of gynecological disorders such as hypermenorrhea, dysmenorrhea and infertility. in the present study, the effects of tj-25 on plasma levels of luteinizing hormone (lh), follicle-stimu ... | 1988 | 3143030 |
| the effects of fruit juices and fruits on the absorption of iron from a rice meal. | the effects of the chemical composition of fruit juices and fruit on the absorption of iron from a rice (oryza sativa) meal were measured in 234 parous indian women, using the erythrocyte utilization of radioactive fe method. the corrected geometric mean fe absorptions with different juices varied between 0.040 and 0.129, with the variation correlating closely with the ascorbic acid contents of the juices (rs 0.838, p less than 0.01). ascorbic acid was not the only organic acid responsible for t ... | 1987 | 3593665 |
| [peach (prunus persica) pollinosis in people who have not been engaged in growing peaches]. | 1985 | 4038086 | |
| parasitism and pathogenic activity of cytospora cincta sacc. on prunus armeniaca l. and on prunus persica l. batsch. | 1970 | 5457493 | |
| rooting responses of juvenile and adult cuttings of apple (malus sylvestris l.) and peach (prunus persica l.) to indole-3 butyric acid (iba) and season in tanzania. | 1982 | 7126132 | |
| taxonomic study of bacteria isolated from plants: proposal of sphingomonas rosa sp. nov., sphingomonas pruni sp. nov., sphingomonas asaccharolytica sp. nov., and sphingomonas mali sp. nov. | the taxonomic positions of 10 strains of 3-ketolactose-forming bacteria which were isolated from the roots of plants (rosa sp., psychotria nairobiensis, ardisia crispa, prunus persica, and apple trees) were investigated. the dna base compositions of these strains ranged from 64.0 to 65.7 mol%, the isoprenoid quinone of each strain was ubiquinone 10, 3-hydroxy fatty acids were lacking in the cellular fatty acids of these organisms, and all of the strains contained a sphingolipid with the long-cha ... | 1995 | 7537068 |
| [effect of xiaoyu pian on new platelet aggregation defect]. | the xiaoyu pian (xyp, mainly consisted of prunus persica, carthamus tinctorius, glycyrrhiza uralensis, etc) was used to treat patients with new platelet aggregation defect. patients were divided into 2 groups, the tcm group (72 cases) treated with xyp and the control group (65 cases) treated with vitamin c and p and/or adrenosem for at least 3 months. the results showed that marked effective rate was 87.5% in tcm group and 35.4% in control group (chi 2 = 39.7, p < 0.01); the recovery rate of pla ... | 1994 | 7719089 |
| purification of three pectin esterases from ripe peach fruit. | three isoforms of pectin esterase (pe1-pe3) (pectin pectyl-hydrolase, ec 3.1.1.11.) were purified to homogeneity from ripe peach fruit (prunus persica cv. coronet). the three enzymes were basic proteins of m(r) 34,000 as determined by denaturing polyacrylamide gel electrophoresis but were separated by fplc cation-exchange chromatography. the proteins were n-terminally blocked but amino acid sequences were obtained for peptides released from two of the three isoforms. the sequences revealed a thr ... | 1994 | 7765664 |
| peach (prunus persica) endopolygalacturonase cdna isolation and mrna analysis in melting and nonmelting peach cultivars. | two distinct partial cdnas, prf1 and prf3, similar in sequence to previously described polygalacturonases, were amplified from ripe peach (prunus persica l. batsch cv flavorcrest) fruit cdna by the polymerase chain reaction. prf1-related rna was present in fruit from early ripening at levels not detected by northern analysis. prf3-related rna was readily detectable in ripe fruit by northern analysis. prf3 was used to isolate a cdna with a complete open reading frame, prf5, from a lambda zap ii c ... | 1994 | 8029352 |
| cold acclimation in genetically related (sibling) deciduous and evergreen peach (prunus persica [l.] batsch). ii. a 60-kilodalton bark protein in cold-acclimated tissues of peach is heat stable and related to the dehydrin family of proteins. | in several plant species, certain cold-regulated proteins share unique properties. these proteins are (a) heat stable and (b) hydrophilic and are related to the group 2 late embryogenesis abundant or dehydrin family of proteins. our previous work with sibling deciduous and evergreen peach genotypes demonstrated a correlation between the level of accumulation of certain bark proteins and cold-acclimation potential of these tissues. here we identify a 60-kd bark protein in peach (prunus persica [l ... | 1994 | 8029367 |
| [protein analysis of 6 crude drugs and their processed products by polyacrylamide gel electrophoresis technique]. | in this paper, the proteins in 6 crude drugs (prunus persica; p. armeniaca; dolichos lablab; strychnos nux-vomica; mylabris phalerata; whitmania pigra) and their processed products were analysed by polyacrylamide gel electrophoresis technique, and the effect of different processing methods on the quantity and kind of protein was explored. protein electrophorograms of 20 samples are drawn. | 1995 | 8679088 |
| structure and activity of persicomycins, toxins produced by a pseudomonas syringae pv. persicae/prunus persica isolate. | a toxigenic property has been demonstrated in a pseudomonas syringae pv. persicae/prunus persica isolate. several substances, which are named persicomycins, have been purified in variable quantities from cultures. the structures of four of them were established by nmr and chemical ionization mass spectrometry. these compounds are 3-(3'-hydroxy)hydroxy fatty acids and thus represent a new family among the phytobacterial toxins. other minor substances have also been isolated and have been shown to ... | 1996 | 8774716 |
| seasonal expression of a dehydrin gene in sibling deciduous and evergreen genotypes of peach (prunus persica [l.] batsch). | a cdna library was created from cold-acclimated bark tissue of peach and selectively probed using an antibody directed against the lysine-rich consensus region of dehydrin proteins. several clones were thus obtained which had a high degree of sequence similarity to other dehydrin genes. northern analysis, using clone 5a, indicated that a 1.8 kb transcript was seasonally expressed in sibling deciduous and evergreen genotypes of peach, and also inducible by water deficit in cv. rio oso gem. the ev ... | 1997 | 9037159 |
| isolation and characterization of soluble boron complexes in higher plants. the mechanism of phloem mobility of boron. | boron (b) polyol complexes have been isolated and characterized from the phloem sap of celery (apium graveolens l.) and the extrafloral nectar of peach (prunus persica l.). in celery the direct analysis of untreated phloem sap by matrix-assisted laser desorption-fourier transform mass spectrometry, with verification by high-performance liquid chromagraphy and gas chromatography-mass spectrometry, revealed that b is present in the phloem as the mannitol-b-mannitol complex. molecular modeling furt ... | 1997 | 9046600 |
| characterization of ppeg1, a member of a multigene family which encodes endo-beta-1,4-glucanase in peach. | three cdna clones (pcel 10, pcel 20 and pcel 30), each encoding different endo-beta-1,4-glucanases in peach, were obtained by rt-pcr and their expression investigated by northern analysis during leaf and fruit abscission and during fruit development. this analysis allowed the detection of only the pcel 10-related mrna. a 2.2 kb transcript accumulated in ethylene activated abscission zones of leaves and fruits, and ppeg1 (prunus persica endoglucanase 1) the gene coding for pcel 10, was isolated a ... | 1997 | 9278169 |
| bacterial cellulose-binding domain modulates in vitro elongation of different plant cells | recombinant cellulose-binding domain (cbd) derived from the cellulolytic bacterium clostridium cellulovorans was found to modulate the elongation of different plant cells in vitro. in peach (prunus persica l.) pollen tubes, maximum elongation was observed at 50 &mgr;g ml-1 cbd. pollen tube staining with calcofluor showed a loss of crystallinity in the tip zone of cbd-treated pollen tubes. at low concentrations cbd enhanced elongation of arabidopsis roots. at high concentrations cbd dramatically ... | 1998 | 9701575 |
| the major allergen of peach (prunus persica) is a lipid transfer protein. | allergy to fresh fruits and vegetables is mostly observed in subjects with pollinosis, especially from birch, because of cross-reacting allergens in vegetable foods and pollens. however, allergic reactions to fruits, specifically rosaceae fruits, have been reported in subjects without pollinosis. | 1999 | 10069889 |
| immunological and molecular comparison of polyphenol oxidase in rosaceae fruit trees. | an antibody raised against apple polyphenol oxidase (ppo) cross-reacted with ppos from japanese pear (pyrus pyrifolia), pear (pyrus communis), peach (prunus persica), chinese quince (pseudocydonia sinensis) and japanese loquat (eriobotrya japonica). core fragments (681 bp) of the corresponding ppo genes were amplified and characterized. the deduced protein sequences showed identities of 85.3 to 97.5%. chlorogenic acid oxidase activity of these ppos showed higher activities when assayed at ph 4 t ... | 1999 | 10385997 |
| differences in key odorants of handmade juice of yellow-flesh peaches (prunus persica l.) induced by the workup procedure. | application of aroma extract dilution analysis (aeda) on a flavor extract isolated from a freshly prepared, enzyme-inactivated peach juice using solvent extraction and high-vacuum distillation (extract i) revealed 24 odor-active regions in the gas chromatogram. flavor dilution (fd) factors ranged from 4 to 512. the highest fd factors were determined for beta-damascenone (cooked-apple-like) and gamma-decalactone (peach-like). cooking of peaches for 2 h in an apparatus equipped for simultaneous st ... | 1999 | 10552883 |
| complete amino acid sequence determination of the major allergen of peach (prunus persica) pru p 1. | the major protein allergen of peach (prunus persica), pru p 1, has recently been identified as a lipid transfer protein (ltp). the complete primary structure of pru p 1, obtained by direct amino acid sequence and liquid chromatography-mass spectrometry (lc-ms) analyses with the purified protein, is described here. the protein consists of 91 amino acids with a calculated molecular mass of 9178 da. the amino acid sequence contains eight strictly conserved cysteines, as do all known ltps, but secon ... | 1999 | 10614824 |
| technological processes to decrease the allergenicity of peach juice and nectar. | among vegetable foods peach (prunus persica) has been recognized as a significant cause of allergy. the protein, which is considered to be the major peach allergen, has been named pru p 1. because peaches are consumed both as fresh fruits and after processing to obtain peach juice, nectar, jam, syrupy peach, etc., research was carried out to identify a technological process for production of hypo- or nonallergenic peach-based products. sds-page and immunoblotting analysis of extracts prepared fr ... | 2000 | 10691663 |
| isolation and molecular characterisation of the gene encoding the cytoplasmic ribosomal protein s28 in prunus persica [l.]] batsch. | rt-pcr was performed on peach (prunus persica [l.] batsch) rna to isolate cdnas corresponding to transcripts which are differentially expressed in leaves borne on basal and apical shoots. a gene was identified which was more highly expressed in the leaves of basal shoots, and codes for the cytoplasmic protein s28 present in the small ribosomal subunit. the 5' leader regions of rps28 mrnas were found to harbour 8-11 pyrimidine tracts, which suggested similarities to regulatory stretches that cont ... | 2000 | 10778738 |
| isolation and characterization of a 60 kda 2,4-d-binding protein from the shoot apices of peach trees (prunus persica l.); it is a homologue of protein disulfide isomerase. | to obtain a candidate auxin-binding protein (abp), a soluble 60 kda protein was isolated from an extract of shoot apices of peach trees (prunus persica l.) by affinity chromatography on a 2,4-dichlorophenoxyacetic acid (2,4-d)-linked sepharose4b column. the 60 kda polypeptide, designated pp60, was purified as a single band on sds-page by column chromatography. its dissociation constant (kd) for [14c]-2,4-d was calculated to be 3.5 x 10(-5) m. the binding of pp60 for [14c]-2,4-d was inhibited by ... | 2000 | 10845464 |
| microsatellite dna in peach (prunus persica l. batsch) and its use in fingerprinting and testing the genetic origin of cultivars. | we isolated and sequenced 26 microsatellites from two genomic libraries of peach cultivar 'redhaven', enriched for ac/gt and ag/ct repeats, respectively. for 17 of these microsatellites, it was possible to demonstrate mendelian inheritance. microsatellite polymorphism was assayed in 50 peach and nectarine cultivars. of the 1300 pcrs carried out, all but two produced amplified products of the expected size. all microsatellites were polymorphic, showing 2-8 alleles per locus. heterozygosity ranged ... | 2000 | 10902716 |
| mapping meristem respiration of prunus persica (l.) batsch seedlings: potential respiration of the meristems, o2 diffusional constraints and combined effects on root growth. | root system architecture partially results from meristem activities, which themselves depend on endogenous and environmental factors, such as o2 depletion. in this study, meristem respiration and growth was measured in the root systems of three prunus persica (l.) batsch seedlings. the spatial distribution of meristem respiration within the root system was described, and the relationship between the respiration rates and meristem radii was analysed, using a model of radial o2 diffusion and consu ... | 2000 | 10938868 |
| protection of the flowers of prunus persica extract from ultraviolet b-induced damage of normal human keratinocytes. | for an attempt to develop safe materials protecting solar ultraviolet (uv)-induced skin damage, plant extracts were evaluated for their inhibitory activities of free radical generation and arachidonic acid/metabolites release from uvb-irradiated normal human keratinocytes. from the results of these screening procedures, the ethanol extract of the flowers of prunus persica (ku-35) was selected for further study. it was found that ku-35 (100-1,000 microg/ml) inhibited the amount of 14c-arachidonic ... | 2000 | 10976590 |
| host-correlated morphological variation of myzus persicae (hemiptera: aphididae) populations in greece. | morphological variation in nine characters of 157 clones of myzus persicae (sulzer) was examined by multivariate analysis. the clones were collected from peach, prunus persica, the primary host and the secondary hosts tobacco, nicotiana tabacum, cabbage, brassica oleracea, sugarbeet, beta vulgaris and pepper capsicum annuum. the 156 clones originated from various regions of greece, both in the north, where a large part of the population has an annual bisexual generation on peach, and in more sou ... | 2000 | 10996864 |
| pharmacological basis for the use of peach leaves in constipation. | the aqueous crude extract (ppl.cr) of peach leaves (prunus persica) was studied for the possible presence of gut stimulatory constituent(s) to rationalize the folkloric use of the plant in constipation. ppl.cr at the dose of 1-10 mg/ml caused a moderate degree of spasmogenic effect in isolated guinea-pig ileum. pretreatment of the tissue with atropine (1 m) completely abolished the contractile effect of the plant extract similar to that of acetylcholine which is suggestive of a cholinergic mecha ... | 2000 | 11025143 |
| pectin esterase, polygalacturonase and gel formation in peach pectin fractions. | peaches (prunus persica cv. hermoza) were stored at 0c in regular air (ra) or in controlled atmosphere (ca 10% co2, 3% o2) for 4 weeks and then ripened for 4 days at 20 degrees c. woolliness developed in the regular air stored fruit while the controlled atmosphere stored fruit ripened normally. in the woolly fruit symptoms of the disorder were greater in the inner mesocarp than in the outer. polygalacturonase (pg) and pectin esterase (pe) activities differed in the outer and inner mesocarp of th ... | 2000 | 11142841 |
| effects of timing of nitrogen fertilization on shoot development in peach (prunus persica) trees. | shoot development was studied for two consecutive years in peach trees fertilized with n either in the previous fall or in the middle of the growing season. during the first year, two additional treatments were studied: no n supply and nitrate supplied in the irrigation water throughout the growing season. the number of shoots that developed depended on nitrogen availability in the period following bud break. during shoot development, leaf emergence occurred in one, two, or three stages, which e ... | 2001 | 11260822 |
| photosynthetic light acclimation in peach leaves: importance of changes in mass:area ratio, nitrogen concentration, and leaf nitrogen partitioning. | photosynthetic light acclimation of leaves can result from (i) changes in mass-based leaf nitrogen concentration, nm, (ii) changes in leaf mass:area ratio, ma, and (iii) partitioning of total leaf nitrogen among different pools of the photosynthetic machinery. we studied variations in nm and ma within the crowns of two peach (prunus persica l. batsch) trees grown in an orchard in portugal, and one peach tree grown in an orchard in france. each crown was digitized and a 3-d radiation transfer mod ... | 2001 | 11282577 |
| a biophysical analysis of stem and root diameter variations in woody plants. | a comprehensive model of stem and root diameter variation was developed. the stem (or root) was represented using two coaxial cylinders corresponding with the mature xylem and the extensible tissues. the extensible tissues were assumed to behave as a single cell separated from the mature xylem by a virtual membrane. the mature xylem and the extensible tissues are able to dilate with temperature and grow. moreover, the extensible tissues are able to shrink and swell according to water flow intens ... | 2001 | 11351082 |
| endogenous gibberellins in immature seeds of prunus persica l.: identification of ga(118), ga(119), ga(120), ga(121), ga(122) and ga(126). | the endogenous gibberellins in immature seeds of prunus persica were analyzed by gas chromatography-mass spectrometry. eleven known gibberellins, ga(3), ga(9), ga(17), ga(19), ga(30), ga(44), ga(61), ga(63), ga(87), ga(95) and ga(97) were identified. additionally, several hitherto unknown gibberellins were detected and their putative structures were verified by synthesis of the authentic gibberellins. these gibberellins were then assigned trivial numbers, e.g. 1alpha-hydroxy ga(20) (ga(118)), 1a ... | 2001 | 11397444 |
| variation in surface conductance to water vapor diffusion in peach fruit and its effects on fruit growth assessed by a simulation model. | surface conductance to water vapor diffusion was measured in individual peach fruits (prunus persica (l.) batsch) and plotted as a function of fresh fruit mass for four cultivars. surface conductance increased with fresh fruit mass, but the pattern differed with cultivar, and fruit-to-fruit variation occurred. relationships between fruit mass and surface conductance were modeled by fitting mathematical equations to the data. the simulation model of fishman and génard (1998) was used to study dry ... | 2001 | 11470659 |
| differential expression of four members of the h+-atpase gene family during dormancy of vegetative buds of peach trees. | vegetative-bud dormancy in peach (prunus persica l. batsch) trees is known to be correlated, at least partially, with properties of the underlying bud tissues during winter. variations in the activity and amount of plasma-membrane h -atpase were observed. a full-length cdna, ppa2 (prunus persica h+-atpase 2) and three partial cdnas (ppa1, ppa3 and ppa4) for the plasma-membrane h+-atpase from peach trees were isolated by reverse transcription (rt)-coupled rapid amplification of cdna ends (race) p ... | 2001 | 11525520 |
| protection against ultraviolet b- and c-induced dna damage and skin carcinogenesis by the flowers of prunus persica extract. | the ethanol extract of the flowers of prunus persica (ku-35) (50-200 microg/ml) was found to inhibit uvb- as well as uvc-induced dna damage measured by the comet assay in the skin fibroblast cell (nih/3t3). in addition, ku-35 inhibited uvb- or uvc-induced lipid peroxidation, especially against uvb-induced peroxidation at higher than 10 microg/ml. we also evaluated the protective effect of ku-35 against uvb-induced non-melanoma skin cancer in mice. ku-35 was applied topically before uvb exposure, ... | 2001 | 11551480 |
| pesticide applications of copper on perennial crops in california, 1993 to 1998. | inorganic copper is used as a broad-spectrum fungicide and bacteriocide on a variety of agricultural crops. after application, the copper residue typically accumulates in the upper 15 cm of soil. data from the california pesticide use reports were used to estimate the augmentation of copper in the soil that resulted from pesticide applications for the six years from 1993 to 1998 on 12 crops that are grown without rotation. the estimated mean mg cu kg(-1) soil added to the upper 15 cm during the ... | 2001 | 11577894 |
| changes in fine root production and longevity in relation to water and nutrient availability in a norway spruce stand in northern sweden. | the peach computer simulation model of reproductive and vegetative growth of peach trees (grossman and dejong 1994) was adapted to estimate seasonal nitrogen (n) dynamics in organs of mature peach (prunus persica (l.) batsch cv. o'henry) trees grown with high and low soil n availability. seasonal n accumulation patterns of fruits, leaves, stems, branches, trunk and roots of mature, cropping peach trees were modeled by combining model predictions of organ dry mass accumulation from the peach mode ... | 2001 | 11581020 |
| a peach linkage map integrating rflps, ssrs, rapds, and morphological markers. | a linkage map was obtained using a bc1 progeny (prunus persica x (p. persica x p ferganensis)). the map is composed of 109 loci (74 rflps, 17 ssrs, 16 rapds, and two morphological traits) distributed in 10 linkage groups. loci, segregating in five different ratios, were integrated in the map with joinmap 2.0 software. the map covers 521 cm of the peach genome. the average distance between adjacent loci is 4.8 cm. two monogenic traits, flesh adhesion (f/f) and leaf glands (e/e), were placed on th ... | 2001 | 11681601 |
| theoretical analysis of systematic errors introduced by a pedicel-girdling technique used to estimate separately the xylem and phloem flows. | the water budget of fruits was analysed by means of a biophysical model of fruit growth, built and calibrated recently for peaches [prunus persica (l.) batsch]. this analysis was applied to the evaluation of systematic errors introduced by a pedicel-girdling method (with the observations being treated by means of a subtractive technique) used to separate the contributions of xylem and phloem flow to the total water inflow to the fruit. the flows were considered as solution transport through comp ... | 2001 | 11735290 |
| ethylene-responsive genes are differentially regulated during abscission, organ senescence and wounding in peach (prunus persica). | ethylene-responsive genes from peach (prunus persica, l. batsch) were isolated by differential screening of a cdna library constructed from abscission zones in which cell separation had been evoked by treatment with the ethylene analogue propylene. dna and deduced protein sequences of four selected clones, termed prunus persica abscission zone (ppaz), revealed homology to thaumatin-like proteins (ppaz8 and ppaz44), to proteins belonging to the pr4 class of pathogenesis-related (pr) proteins (ppa ... | 2002 | 11847241 |
| isolation and characterization of six peach cdnas encoding key proteins in organic acid metabolism and solute accumulation: involvement in regulating peach fruit acidity. | as in many other fleshy fruits, the predominant organic acids in ripe peach (prunus persica (l.) batsch) fruit are malic and citric acids. the accumulation of these metabolites in fruit flesh is regulated during fruit development. six peach fruit-related genes implicated in organic acid metabolism (mitochondrial citrate synthase; cytosolic nad-dependent malate dehydrogenase, and cytosolic nadp-dependent isocitrate dehydrogenase) and storage (vacuolar proton translocating pumps: one vacuolar h+-a ... | 2002 | 11903973 |
| the extract of the flowers of prunus persica, a new cosmetic ingredient, protects against solar ultraviolet-induced skin damage in vivo. | the flowers of prunus persica batsch have been used for skin disorders in east asia from ancient times. in this investigation, the ethanol extract from this plant material was prepared and several major constituents were isolated. in addition, the protective effects of the extract were evaluated against solar ultraviolet (uv)-induced skin damage using in vivo animal models of uvb-induced erythema in guinea pigs and ear edema in icr mice. from the extract, four kaempferol glycoside derivatives we ... | 2002 | 11917253 |
| microsatellite variation in cyclically parthenogenetic populations of myzus persicae in south-eastern australia. | we examined the population structure of the introduced aphid, myzus persicae collected mainly from its primary host, prunus persica, in south-east australia. myzus persicae has been present in australia since at least 1893. samples were collected in the spring of 1998 from two mainland and three tasmanian localities and isofemale lines were established in the laboratory. the reproductive mode (life cycle), karyotype and 17-locus microsatellite genotype of each clone were determined. all populati ... | 2002 | 11920132 |
| high-throughput targeted ssr marker development in peach (prunus persica). | simple sequence repeats (ssrs) have proven to be highly polymorphic, easily reproducible, codominant markers. however, developing an ssr map is very time consuming and expensive, and most ssrs are not specifically linked to gene loci of immediate interest. the ideal situation would be to combine a high-throughput, relatively inexpensive mapping technique with rapid identification of ssr loci in mapped regions of interest. for this reason, we coupled the high-throughput technique of aflp mapping ... | 2002 | 11962629 |
| distinct nuclear organization, dna methylation pattern and cytokinin distribution mark juvenile, juvenile-like and adult vegetative apical meristems in peach (prunus persica (l.) batsch). | chromatin organization, nuclear dna methylation and endogenous zeatin localization were investigated in shoot apical meristems (sam) during juvenile and adult phases of peach (prunus persica (l.) batsch). the aim was to examine the extent to which these parameters could discriminate the juvenile and adult sams. seedlings (juvenile, cannot flower), basal shoots (called juvenile-like, because they exhibit juvenile macroscopic traits) and apical shoots (competent to form flowers) of adult plants we ... | 2002 | 11971916 |
| an expanded genetic linkage map of prunus based on an interspecific cross between almond and peach. | the genetic linkage map of prunus constructed earlier and based on an interspecific f2 population resulting from a cross between almond (prunus dulcis d.a. webb) and peach (prunus persica l. batsch) was extended to include 8 isozyme loci, 102 peach mesocarp cdnas, 11 plum genomic clones, 19 almond genomic clones, 7 resistance gene analogs (rgas), 1 rga-related sequence marker, 4 morphological trait loci, 3 genes with known function, 4 simple sequence repeat (ssr) loci, 1 rapd, and 1 cleaved ampl ... | 2002 | 12033621 |
| peach (prunus persica) fruit ripening: aminoethoxyvinylglycine (avg) and exogenous polyamines affect ethylene emission and flesh firmness. | the effect of various concentrations of aminoethoxyvinylglycine (avg; 0.32 and 1.28 mm), an ethylene biosynthesis inhibitor, and of the polyamines putrescine (10 mm), spermidine (0.1, 1 and 5 mm) and spermine (2 mm) on peach (prunus persica l. batsch cv. redhaven) fruit ripening was evaluated under field conditions. treatments were performed 19 (polyamines) and 8 (avg) days before harvest. fruit growth (diameter, fresh and dry weight), flesh firmness, soluble solids content and ethylene emission ... | 2002 | 12060270 |
| molecular cloning, characterisation and expression of a manganese superoxide dismutase gene from peach (prunus persica [l.] batsch). | two cdna clones encoding mitochondrial manganese superoxide dismutases (mnsods) from peach ( prunus persica [l.] batsch) were identified, which show homologies to several plant mnsods. the amino acid sequence predicted from one full-length clone ( mnsod1) showed the highest homology to an mnsod from nicotiana plumbaginifolia (94%) and included a 24-amino acid transit peptide typical of those used to target proteins to the mitochondria. a second, partial clone ( mnsod2) showed divergence from mns ... | 2002 | 12073034 |
| molecular characterisation of sweet cherry (prunus avium l.) genotypes using peach [prunus persica (l.) batsch] ssr sequences. | a total of 76 sweet cherry genotypes were screened with 34 microsatellite primer pairs previously developed in peach. amplification of ssr loci was obtained for 24 of the microsatellite primer pairs, and 14 of them produced polymorphic amplification patterns. on the basis of polymorphism and quality of amplification, a set of nine primer pairs and the resulting 27 informative alleles were used to identify 72 genotype profiles. of these, 68 correspond to unique cultivar genotypes, and the remaini ... | 2002 | 12080370 |
| gas exchange, biomass, whole-plant water-use efficiency and water uptake of peach (prunus persica) seedlings in response to elevated carbon dioxide concentration and water availability. | we examined the interactive effects of elevated co2 concentration ([co2]) and water stress on growth and physiology of 1-year-old peach (prunus persica l.) seedlings grown in 10-dm3 pots in open-top chambers with ambient (350 micromol mol-1) or elevated (700 micromol mol-1) [co2]. seedlings were supplied weekly with a non-limiting nutrient solution. water was withheld from half of the plants in each treatment for a 4-week drying cycle, to simulate a sudden and severe water stress during the phas ... | 2002 | 12091151 |
| characterization of the peach homologue of the ethylene receptor, ppetr1, reveals some unusual features regarding transcript processing. | to identify which processes in peach, prunus persica [l.] batsch., are associated with changes in ethylene perception, we cloned and characterized a peach homologue of the gene encoding the ethylene receptor, etr1. a fragment of the peach gene, ppetr1, obtained via pcr using degenerate primers against peach genomic dna was used to screen a cdna library made from ripening fruit. the resulting cdna and subsequent 3' race clones indicate that the ppetr1 coding region is highly similar to other etr1 ... | 2002 | 12172852 |
| effects of crown development on leaf irradiance, leaf morphology and photosynthetic capacity in a peach tree. | the three-dimensional (3-d) architecture of a peach tree (prunus persica l. batsch) growing in an orchard near avignon, france, was digitized in april 1999 and again four weeks later in may 1999 to quantify increases in leaf area and crown volume as shoots developed. a 3-d model of radiation transfer was used to determine effects of changes in leaf area density and canopy volume on the spatial distribution of absorbed quantum irradiance (par(a)). effects of changes in par(a) on leaf morphologica ... | 2002 | 12204849 |
| modulation of antioxidant compounds in organic vs conventional fruit (peach, prunus persica l., and pear, pyrus communis l.). | despite the increasing interest in organic products, knowledge about how different levels of fertilization affect nutritionally relevant components is still limited. the concentration of polyphenols and the activity of polyphenoloxidase (ppo), together with the content in ascorbic acid, citric acid, and alpha- and gamma-tocopherol, were assayed in conventional and organic peach (prunus persica l., cv. regina bianca) and pear (pyrus communis l., cv. williams). 2-thiobarbituric acid reactive subst ... | 2002 | 12207491 |
| observations of ice nucleation and propagation in plants using infrared video thermography. | we evaluated the use of infrared (ir) video thermography to observe directly ice nucleation and propagation in plants. an imaging radiometer with an hgcdte long-wave (8-12 [mu]m) detector was utilized to image the thermal response of plants during freezing. ir images were analyzed in real time and recorded on videotape. information on the videotape was subsequently accessed and analyzed utilizing ir image analysis software. freezing of water droplets as small as 0.5 [mu]l was clearly detectable ... | 1997 | 12223611 |
| ripening of nectarine fruit (changes in the cell wall, vacuole, and membranes detected using electrical impedance measurements). | electrical impedance measurements were used to characterize changes in intracellular and extracellular resistance as well as changes in the condition of membranes during ripening of nectarines (prunus persica [l.] batsch cv fantasia). these measurements were related to changes in fruit texture assessed by flesh firmness and apparent juice content. an electrical model indicated that, during ripening (d 1-5) of freshly harvested fruit, the resistance of the cell wall and vacuole declined by 60 and ... | 1994 | 12232315 |
| modeling carbon export out of mature peach leaves. | the characteristics of sorbitol and sucrose export out of mature leaves in seedlings of peach (prunus persica l. batsch cv gf 305) were investigated by simulating carbon fluxes through the leaf. three treatments were employed: a control treatment and two treatments modifying leaf export, the latter using either shading or girdling. photosynthesis and 14c partitioning into sorbitol and sucrose were measured during carbohydrate pool buildup at the beginning of the photoperiod, and the export rate ... | 1994 | 12232352 |
| contribution of vegetative storage proteins to seasonal nitrogen variations in the young shoots of peach trees (prunus persica l. batsch). | qualitative and quantitative variations in the level of two low molecular weight vegetative storage proteins (vsp 19 kda and 16.5 kda) in peach shoots were compared with annual variations in total nitrogen and total soluble proteins. protein patterns were obtained by sds-page and silver staining on each of the 12 kinetic samples collected between october 1995 and november 1996. vsp 16.5 kda and 19 kda exhibited typical annual vsp variations in both parenchyma and phloem. in wood, vsp 16.5 kda wa ... | 2002 | 12432035 |
| winter embolism, mechanisms of xylem hydraulic conductivity recovery and springtime growth patterns in walnut and peach trees. | xylem vessels of prunus persica batsch (peach) and juglans regia l. (walnut) are vulnerable to frost-induced embolism. in peach, xylem embolism increased progressively over the winter, reaching a maximum of 85% loss of hydraulic conductivity (plc) in early march. over winter, plc in walnut approached 100%, but the degree of xylem embolism varied during the winter, reflecting the ability of walnut to generate positive xylem pressures in winter and spring. in contrast, positive xylem pressures wer ... | 2002 | 12464574 |
| immunoassay to quantify the major peach allergen pru p 3 in foodstuffs. differential allergen release and stability under physiological conditions. | pru p 3 is a lipid transfer protein (ltp) that has been identified as the major peach (prunus persica) allergen. however, little is known about the amount present in both raw and processed foodstuffs. moreover, the in vivo release upon consumption of peach-containing foods remains unclear. we have developed a sensitive monoclonal antibody-based elisa for pru p 3. the method has been applied to measure the allergen levels in foodstuffs and the allergen release under different physiological condit ... | 2002 | 12475298 |
| the influence of severe shoot pruning on growth, carbon and nitrogen status in young peach trees (prunus persica). | one-year-old peach trees (prunus persica (l.) batsch) were severely pruned in july by removing 60% of the shoots. tree responses were analyzed in terms of architecture and nutritional status. tree growth was recorded from july to september by nondestructive (leaf production, thickening and branching of the remaining secondary axes) and destructive measurements (biomass partitioning and concentrations of total nitrogen (n) and nonstructural carbohydrates (nc) in specific tissues). the dry weights ... | 2002 | 12490426 |
| responses of prunus ferganensis, prunus persica and two interspecific hybrids to moderate drought stress. | prunus ferganensis (kost. & riab) kov. & kost, a close relative of cultivated peach (prunus persica (l.) batsch.), is native to arid regions of central asia. a distinguishing feature of p. ferganensis is its prominent, elongated, unbranched pattern of leaf venation. to determine whether the long-vein trait could be used as a marker in breeding for drought tolerance, we investigated the association between this trait and the leaf morphological and physiological parameters related to drought respo ... | 2003 | 12511304 |
| [stress effects of simulant acid rain on three woody plants]. | osmanthus fragrana, chimonanthus praecox and prunus persica were used as materials to investigate the effect of simulant acid rain on chlorophyll (chl) content, cell membrane permeability(l%), the content of proline (pro) and malondialdehyde (mda) in three woody plants with different resistance, and effects of the light and dark conditions on acid rain injury. the results showed that the change degree of four kinds of physiological and biochemical indexes for these woody plants was as sequence: ... | 2002 | 12533924 |
| genetic mapping of the evergrowing gene in peach [prunus persica (l.) batsch]. | in temperate locations, terminal apices on evergrowing (also called evergreen) peach trees keep growing in winter until killed by low temperatures, while the lateral buds go into dormancy. a recessive allele of a single gene (evergrowing or evg) controls this trait in peach. the amplified fragment length polymorphism (aflp) technique and bulked segregant analysis were applied to construct a local genetic linkage map for the evg gene from the cross empress op op dwarf x evergrowing (p.i. 442380). ... | 2004 | 12547924 |
| [immunofluorescence studies on the localization of integrin-like protein in plant pollen tubes]. | the strong fluorescence signals were obtained in pollen tube of lilium davidii duch with labeled anti-vnr integrin serum, and anti-beta 3, alpha v integrin subunit cytoplasmic domain serum separately. the highest density of immunolabel was in the tip of pollen tube. there was little or no immunolabel in control experiment using non-immune serum, second antibody alone and anti-fnr, lnr integrin serum separately. in pollen of prunus persica f. rubro-piena schneid, fluoresence signals were also obt ... | 1999 | 12548782 |
| anti-tumor promoting effect of glycosides from prunus persica seeds. | four minor components, along with the major cyanogenic glycosides, amygdalin and prunasin, were isolated from prunus persica seeds (persicae semen; tounin), and characterized as mandelic acid glycosides (beta-gentiobioside and beta-d-glucoside) and benzyl alcohol glycosides (beta-gentiobioside and beta-d-glucoside). the anti-tumor promoting activity of these compounds was examined in both in vitro and in vivo assays. all of the compounds significantly inhibited the epstein-barr virus early antig ... | 2003 | 12576693 |
| development of microsatellite markers in peach [ prunus persica (l.) batsch] and their use in genetic diversity analysis in peach and sweet cherry ( prunus avium l.). | we report the sequence of 41 primer pairs of microsatellites from a ct-enriched genomic library of the peach cultivar 'merrill o'henry'. ten microsatellite-containing clones had sequences similar to plant coding sequences in databases and could be used as markers for known functions. for microsatellites segregating at least in one of the two prunus f(2) progenies analyzed, it was possible to demonstrate mendelian inheritance. microsatellite polymorphism was evaluated in 27 peach and 21 sweet che ... | 2002 | 12582570 |
| candidate genes and qtls for sugar and organic acid content in peach [ prunus persica (l.) batsch]. | the identification of genes involved in variation of peach fruit quality would assist breeders in creating new cultivars with improved fruit quality. major genes and quantitative trait loci (qtls) for physical and chemical components of fruit quality have already been detected, based on the peach [ prunus persica (l.) batsch] cv. ferjalou jalousia((r)) (low-acid peach) x cv. fantasia (normally-acid nectarine) f(2) intraspecific cross. our aim was to associate these qtls to structural genes using ... | 2002 | 12582572 |
| construction of a bac library and its application to the identification of simple sequence repeats in peach [ prunus persica (l.) batsch]. | the rosaceae contains many economically important crop species, but their genomes are not well characterized, and comparative genetic mapping lags well behind that of other families. to facilitate genome comparisons and gene discovery in the rosaceae, we have begun the development of genomic resources for peach as the model genome for this family. first, we developed a simplified, cost-effective method for constructing bac libraries, particularly appropriate for plant species of relatively minor ... | 2002 | 12582893 |
| simple sequence repeat (ssr) analysis for assessment of genetic variability in apricot germplasm. | thirty ssr primer combinations, developed from peach ssr-enriched genomic libraries and bac libraries of peach [ prunus persica (l.) batsch.], were tested for cross amplification with 74 apricot ( prunus armeniaca l.) germplasm accessions. twelve primer pairs amplified 14 polymorphic ssr loci useful for discriminating most apricot cultivars, as well as for investigating patterns of variation in apricot germplasm. levels of polymorphism were higher than the levels described using other codominant ... | 2003 | 12589543 |
| influence of branch autonomy on fruit, scaffold, trunk and root growth during stage iii of peach fruit development. | we studied the influence of branch autonomy on the growth of reproductive and vegetative organs by establishing different patterns of fruit distribution within and between large branch units (scaffolds) in mature peach trees (prunus persica (l.) batsch cv. 'elegant lady'). different patterns of fruit distribution were established by defruiting either whole scaffolds (uneven fruit distribution between scaffolds; us) or several selected hangers (small fruiting branches) per tree (uneven fruit dist ... | 2003 | 12615546 |
| changes in fruit sugar concentrations in response to assimilate supply, metabolism and dilution: a modeling approach applied to peach fruit (prunus persica). | the influence of assimilate supply, metabolism and dilution on sugar concentrations in the mesocarp of peach (prunus persica (l.) batsch) fruit during the main stage of fruit enlargement was analyzed with the sugar model of génard and souty (1996). the model predicts the partitioning of carbon into sucrose, sorbitol, glucose and fructose in the mesocarp of peach fruit. based on measured data and the model, we determined values for the relative rates of sugar transformation. these rates were cons ... | 2003 | 12642239 |
| a carbon balance model of peach tree growth and development for studying the pruning response. | we modeled tree responses to pruning on the basis of growth rules established on unpruned trees and a simple principle governing root-shoot interactions. the model, which integrates architectural and ecophysiological approaches, distinguishes four types of anatomical organs in a tree: rootstock, main axis, secondary axes and new roots. tree structure is described by the position of secondary axes on the main axis. the main processes considered are plastochronal activity, branching, assimilate pr ... | 1998 | 12651360 |
| storage of foliar-absorbed nitrogen and remobilization for spring growth in young nectarine (prunus persica var. nectarina) trees. | the effectiveness of spraying foliage with urea to provide nitrogen (n) to augment the seasonal internal cycling of n in young nectarine trees (prunus persica (l.) batsch var. nectarina (ait. f. maxim.), cv. stark red gold) was studied. one-year-old trees were grown with contrasting n supplies during the summer and foliage was sprayed with a 2% urea solution labeled with (15)n just before leaf senescence started. after leaf abscission had finished, the trees were repotted in sand and given no fu ... | 1998 | 12651390 |
| distribution of leaf mass per unit area and leaf nitrogen concentration determine partitioning of leaf nitrogen within tree canopies. | distribution of leaf nitrogen with respect to leaf mass per unit area (m(a)), nitrogen per unit mass (n(m)) and nitrogen per unit area (n(a)) within peach (prunus persica l.) tree canopies was studied in two field experiments. in one experiment, leaf light exposure and m(a) were measured on leaves from different canopy positions of peach trees subjected to five nitrogen (n) fertilization treatments. leaf light exposure and m(a) were linearly related and the relationship was independent of n fert ... | 2000 | 12651464 |
| influence of canopy light environment and nitrogen availability on leaf photosynthetic characteristics and photosynthetic nitrogen-use efficiency of field-grown nectarine trees. | relationships between co(2) assimilation at light saturation (a(max)), nitrogen (n) content and weight per unit area (w(a)) were studied in leaves grown with contrasting irradiances (outer canopy versus inner canopy) and n supply rates in field-grown nectarine trees prunus persica l. batsch. cv. fantasia. both a(max) and n content per unit leaf area (n(a)) were linearly correlated to w(a), but leaves in the high-n treatment had higher n(a) and a(max) for the same value of w(a) than leaves in the ... | 1999 | 12651580 |
| carbohydrate metabolism of vegetative and reproductive sinks in the late-maturing peach cultivar 'encore' | activities of nad(+)-dependent sorbitol dehydrogenase (sdh), sorbitol oxidase (sox), sucrose synthase (ss), acid invertase (ai), and neutral invertase (ni) in 'encore' peach (prunus persica l.) fruits and developing shoot tips were assayed during the growing season to determine whether carbohydrate metabolizing enzymes could serve as indicators of sink strength. in fruit flesh, ss activity was detected during stage i of growth, when cells were actively dividing, and sdh activity was detected dur ... | 1999 | 12651589 |
| purification and characterization of a beta-galactosidase from peach (prunus persica). | a beta-galactosidase (ec 3.2.1.23) from peach (prunus persica cv mibackdo) was purified and characterized. the purified peach beta-galactosidase was 42 kda in molecular mass and showed high enzyme activity against a the beta-galactosidase substrate, rho-nitrophenyl-beta-d-galactopyranoside. the km and vmax values of the enzyme activity of the peach beta-galactosidase were 5.16 and 0.19 mm for rho-nitrophenyl-beta-d-galactopyranoside mm/h, respectively. the optimum ph of the enzyme activity was p ... | 2003 | 12661763 |
| characterization of microsatellites in wild and sweet cherry (prunus avium l.)--markers for individual identification and reproductive processes. | nuclear microsatellites were characterized in prunus avium and validated as markers for individual and cultivar identification, as well as for studies of pollen- and seed-mediated gene flow. we used 20 primer pairs from a simple sequence repeat (ssr) library of prunus persica and identified 7 loci harboring polymorphic microsatellite sequences in p. avium. in a natural population of 75 wild cherry trees, the number of alleles per locus ranged from 4 to 9 and expected heterozygosity from 0.39 to ... | 2003 | 12669801 |
| characterization of a type ii chlorophyll a/b-binding protein gene (lhcb2*pp1) in peach. ii. mrna abundance in developing leaves exposed to sun or shade. | leaf development of shoots exposed to full sunlight and shoots shaded by the canopy was followed in field-grown, mature peach trees (prunus persica (l.) batsch, cv. loring) during the first half of the 1995 growing season. the architecture and size of shaded shoots and sun-exposed shoots differed significantly. total number of leaves produced on shaded shoots was significantly less than on sun-exposed shoots throughout the season, and differences in leaf number between light conditions increased ... | 2003 | 12670801 |
| cloning, expression, and characterization of sorbitol transporters from developing sour cherry fruit and leaf sink tissues. | the acyclic polyol sorbitol is a primary photosynthetic product and the principal photosynthetic transport substance in many economically important members of the family rosaceace (e.g. almond [prunus dulcis (p. mill.) d.a. webber], apple [malus pumila p. mill.], cherry [prunus spp.], peach [prunus persica l. batsch], and pear [pyrus communis]). to understand key steps in long-distance transport and particularly partitioning and accumulation of sorbitol in sink tissues, we have cloned two sorbit ... | 2003 | 12692316 |
| comparison of peach and arabidopsis genomic sequences: fragmentary conservation of gene neighborhoods. | we examined the degree of conservation of gene order in two plant species, prunus persica (peach) and arabidopsis thaliana (thale cress), whose lineages diverged more than 90 million years ago. in the three peach genomic regions studied, segments with a gene order congruent with a. thaliana were short (two to three genes in length); and for any peach region, corresponding segments were found in diverse locations in the a. thaliana genome. at the gene level and lower, the a. thaliana sequence was ... | 2003 | 12723043 |
| microsatellite variability in peach [ prunus persica (l.) batsch]: cultivar identification, marker mutation, pedigree inferences and population structure. | a collection of 212 peach and nectarine cultivars covering a wide variation of the species were studied with 16 polymorphic single-locus microsatellite, or simple-sequence repeat (ssr), markers. the average number of alleles per locus was 7.3, 35% of the cultivar x locus combinations analyzed were heterozygous and 87% of the cultivars studied could be individually identified. most of the groups where two or more cultivars had the same ssr fingerprint included known peach mutants or possible syno ... | 2003 | 12750778 |
| daily shoot extension growth of peach trees growing on rootstocks that reduce scion growth is related to daily dynamics of stem water potential. | we studied relationships between diurnal patterns of stem water potential (psistem) and stem extension growth of the same scion cultivar growing on three rootstocks with differing size-controlling potentials. the peach trees (prunus persica (l.) batsch) used in this field experiment consisted of an early-maturing freestone cultivar, 'flavorcrest,' grafted onto three different rootstocks: nemaguard (a vigorous seed-propagated control, p. persica x p. davidiana hybrid), hiawatha (an intermediate v ... | 2003 | 12777242 |
| a cell wall-oriented genomic approach reveals a new and unexpected complexity of the softening in peaches. | during ripening, fleshy fruits undergo textural changes that lead to loss of tissue firmness and consequent softening. it is a common idea that this process is the consequence of cell wall dismantling carried out by different and orderly expressed enzymes. for this purpose, by using a single enzyme family approach many enzymes and related genes have been characterized in different fruits. in this work, the softening of the climacteric peach fruits (prunus persica (l.) batsch.) has been studied b ... | 2003 | 12815031 |
| the potential of prunus davidiana for introgression into peach [prunus persica (l.) batsch] assessed by comparative mapping. | the potential for introgression of prunus davidiana, a wild species related to peach, was evaluated with respect to problems of non-mendelian segregation or suppressed recombination which often hamper breeding processes based on interspecific crosses. three connected (f1, f2 and bc2) populations, derived from a cross between p. davidiana clone p1908 and the peach cultivar summergrand were used. the intraspecific map of p. davidiana already established using the f1 progeny was complemented, and t ... | 2003 | 12845438 |
| comparative effect of prunus persica l. batsch-water extract and tacrine (9-amino-1,2,3,4-tetrahydroacridine hydrochloride) on concentration of extracellular acetylcholine in the rat hippocampus. | prunus persica l. batsch seed-water extract (ppe) has been used in the treatment of the degenerative disorders, such as hypermenorrhea and dysmenorrhea, in taiwan, china, japan and korea. in this study, the effects of oral administration of ppe on the extracellular acetylcholine concentration in the hippocampus of rats were evaluated, and compared to that of tacrine (9-amino-1,2,3,4-tetrahydroacridine hydrochloride), a well-known and centrally acting acetylcholinesterase (ache) inhibitor, which ... | 2003 | 12860300 |
| elimination of ppv and pnrsv through thermotherapy and meristem-tip culture in nectarine. | the plum pox virus (ppv) and prunus necrotic ringspot virus (pnrsv) cause serious disease problems in stone-fruit trees. in this work, the possibility of obtaining plant material free from these viruses through thermotherapy and meristem-tip culture from infected nectarine shoots (prunus persica var. nectarina max, cv. 'arm king') was studied. in addition, the detection of these viruses in in vitro cultures and young acclimatized plantlets with double antibody sandwich-enzyme-linked immunosorben ... | 2003 | 12898177 |
| effects of fe deficiency chlorosis on yield and fruit quality in peach (prunus persica l. batsch). | the effects of iron (fe) deficiency on fruit yield and quality were measured in two peach cultivars, carson (yellow-skin fruit) and babygold (red-skin fruit). in both cultivars, fe deficiency caused major decreases in fruit fresh weight per tree and number of fruits per tree. fruits from fe-deficient peach trees had a smaller size, resulting in a large decrease in the percentage of commercially acceptable fruits, whereas fruit firmness was unaffected. in cv. babygold, fe deficiency greatly decre ... | 2003 | 12952427 |
| soil transmission of beet ringspot virus to peach (prunus persica). | 1957 | 13483607 | |
| investigation of bound aroma constituents of yellow-fleshed nectarines (prunus persica l. cv. springbright). changes in bound aroma profile during maturation. | glycosidically bound volatile constituents of yellow-fleshed clingstone nectarines (cv. springbright) were identified and quantified at three stages of maturity. glycoconjugates were isolated by lc on a c(18) reversed phase column with methanol elution followed by hydrolysis with a commercial pectinase enzyme. forty-five bound aglycons were identified for the first time in yellow-fleshed nectarine. thirty were terpene derivatives, and the most abundant ones were (e)- and (z)-furan linalool oxide ... | 2003 | 14518956 |
| microspore separation in the quartet 3 mutants of arabidopsis is impaired by a defect in a developmentally regulated polygalacturonase required for pollen mother cell wall degradation. | mutations in the quartet loci in arabidopsis result in failure of microspore separation during pollen development due to a defect in degradation of the pollen mother cell wall during late stages of pollen development. mutations in a new locus required for microspore separation, qrt3, were isolated, and the corresponding gene was cloned by t-dna tagging. qrt3 encodes a protein that is approximately 30% similar to an endopolygalacturonase from peach (prunus persica). the qrt3 protein was expressed ... | 2003 | 14551328 |