Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| application of a bayesian ordinal animal model for the estimation of breeding values for the resistance to monilinia fruticola (g.winter) honey in progenies of peach [prunus persica (l.) batsch]. | fruit brown rot caused by monilinia spp. is the most important fungal disease of stone fruits worldwide. several phenotyping protocols to accurately characterize and evaluate brown rot infection have been proposed; however, the outcomes from those studies have not led to consistent advances in resistance breeding programs. breeding for disease resistance is one of the most challenging objectives for crop improvement because disease expression is tetrahedral: it is simultaneously influenced by ag ... | 0 | 28588387 |
| comparison between in toto peach (prunus persica l. batsch) supplementation and its polyphenolic extract on rat liver xenobiotic metabolizing enzymes. | over the past years, there has been a growing interest in the natural constituents of foods as a potential means of cancer control. to date, epidemiology studies seem to indicate an inverse association between regular consumption of fruit and vegetables and cancer risk. here, the potential chemopreventive activity of the polyphenolic extract (ppe) of peach (prunus persica l. batsch) and of the freeze-dried fruit in toto (lft), focusing on the modulation of xenobiotic metabolizing enzymes (xmes) ... | 0 | 27742397 |
| genome-wide identification and analysis of the type-b authentic response regulator gene family in peach (prunus persica). | the type-b authentic response regulator (arr-b) family members serve as dna-binding transcriptional regulators, whose activities are probably regulated by phosphorylation/dephosphorylation, resulting in the rapid induction of type-a arr genes. type-b arrs are believed to be involved in many biological processes, including cytokinin signaling, plant growth, and stress responses through a chaperone or by isomerization of proline residues during protein folding. the public availability of complete ... | 0 | 28351057 |
| erratum to: carotenoids, phenolic profile, mineral content and antioxidant properties in flesh and peel of prunus persica fruits during two maturation stages. | 0 | 28176161 | |
| novel gene-sequence markers for isolate tracking within monilinia fructicola lesions. | monilinia fructicola is a diverse pathogen of pome and stone fruits that causes severe economic losses each year. however, little is known about inoculum flow within or between orchards and pathogen establishment in an orchard, because few methods exist for detecting diversity or tracking isolates over time. ssr loci are an effective option, but may be confounded by a high degree of mutability and potential sensitivity to abiotic stress. | 0 | 28160377 |
| the impact of a novel peach gum-derived polysaccharide on postprandial blood glucose control in streptozotocin-induced diabetic mice. | peach [prunus persica (l.)] gum exudates are produced by the trunks and fruits in peach gummosis. clinically, these exudates have been used to treat diabetes in china, though the molecular mechanism underlying remains unclear. in the current study, a novel peach gum-derived polysaccharide was isolated, designated as pgpsd, and its anti-diabetic effect was assessed in mice. this polysaccharide was composed of arabinose, xylose and galactose in the molar ratio of 5.98:1:3.55, with the average mole ... | 0 | 28115227 |
| transcriptome analysis of peach (prunus persica l. batsch) during the late stage of fruit ripening. | fruit ripening is a complex developmental process, the details of which remain largely unknown in fleshy fruits. in this paper, the fruit flesh of two peach varieties, "zhongyou9" (a nectarine; prunus persica l. batsch) and its mutant "hongyu", was analyzed by rna-seq technology during two stages of ripening at 20-day intervals. one hundred and eighty significant upregulated and two hundred and thirty-five downregulated genes were identified in the experiment. many of these genes were related to ... | 0 | 28081283 |
| comparative physiological and proteomic analysis reveal distinct regulation of peach skin quality traits by altitude. | the role of environment in fruit physiology has been established; however, knowledge regarding the effect of altitude in fruit quality traits is still lacking. here, skin tissue quality characters were analyzed in peach fruit (cv. june gold), harvested in 16 orchards located in low (71.5 m mean), or high (495 m mean) altitutes sites. data indicated that soluble solids concentration and fruit firmness at commercial harvest stage were unaffected by alitute. peach grown at high-altitude environment ... | 0 | 27891143 |
| carotenoids, phenolic profile, mineral content and antioxidant properties in flesh and peel of prunus persica fruits during two maturation stages. | carotenoids and phenolic profile, antioxidant activity as well as concentrations of selected macronutrients (k, n, mg, ca and na) and micronutrients (zn, cu and mn) in flesh and peel of peach fruit were recorded at two harvest dates. predominant mineral was potassium, followed by calcium, magnesium and sodium. the concentration of most micronutrients was greater in the peel than in the flesh especially in early season. the concentration of most elements in flesh and peel decreased during fruit m ... | 0 | 27812831 |
| differential metabolic rearrangements after cold storage are correlated with chilling injury resistance of peach fruits. | reconfiguration of the metabolome is a key component involved in the acclimation to cold in plants; however, few studies have been devoted to the analysis of the overall metabolite changes after cold storage of fruits prior to consumption. here, metabolite profiling of six peach varieties with differential susceptibility to develop mealiness, a chilling-injury (ci) symptom, was performed. according to metabolic content at harvest; after cold treatment; and after ripening, either following cold t ... | 0 | 27746802 |
| ribosome inactivating proteins from rosaceae. | ribosome-inactivating proteins (rips) are widespread among higher plants of different taxonomic orders. in this study, we report on the rip sequences found in the genome/transcriptome of several important rosaceae species, including many economically important edible fruits such as apple, pear, peach, apricot, and strawberry. all rip domains from rosaceae share high sequence similarity with conserved residues in the catalytic site and the carbohydrate binding sites. the genomes of malus domestic ... | 0 | 27556443 |
| assessment of sugar components and genes involved in the regulation of sucrose accumulation in peach fruit. | soluble sugar contents in mature fruits of 45 peach accessions were quantified using gas chromatography analysis. sucrose is the predominant sugar in mature fruit, followed by glucose and fructose, which have similar concentrations. overall, sucrose metabolism and accumulation are crucial determinants of sugar content in peach fruit, and there is a wide range of sucrose concentrations among peach genotypes. to understand the mechanisms regulating sucrose accumulation in peach fruit, expression p ... | 0 | 27537219 |
| genome-wide transcriptional profile analysis of prunus persica in response to low sink demand after fruit removal. | prunus persica fruits were removed from 1-year-old shoots to analysis photosynthesis, chlorophyll fluorescence and genes changes in leaves to low sink demand caused by fruit removal (-fruit) during the final stage of rapid fruit growth. a decline in net photosynthesis rate was observed, accompanied with a decrease in stomatal conductance. the intercellular co2 concentrations and leaf temperature increased as compared with a normal fruit load (+fruit). moreover, low sink demand significantly inhi ... | 0 | 27446115 |
| proteomic analysis of changes in mitochondrial protein expression during peach fruit ripening and senescence. | ripening and senescence define the last step of fruit development, which directly affects its commercial value, and mitochondria play a crucial role in these processes. to better understand mitochondrial roles in maintaining and regulating metabolism in storage tissues, highly purified mitochondria were isolated from peach tissues (prunus persica. cv. xiahui-8) stored at 4°c and 25°c, respectively, and their proteome was conducted using the method of 2-de and maldi-tof/tof. twenty-four (24) diff ... | 0 | 27288903 |
| genotyping by sequencing for snp-based linkage map construction and qtl analysis of chilling requirement and bloom date in peach [prunus persica (l.) batsch]. | low-cost, high throughput genotyping methods are crucial to marker discovery and marker-assisted breeding efforts, but have not been available for many 'specialty crops' such as fruit and nut trees. here we apply the genotyping-by-sequencing (gbs) method developed for cereals to the discovery of single nucleotide polymorphisms (snps) in a peach f2 mapping population. peach is a genetic and genomic model within the rosaceae and will provide a template for the use of this method with other members ... | 0 | 26430886 |
| [not available]. | 1947 | 18918161 | |
| soil transmission of beet ringspot virus to peach (prunus persica). | 1957 | 13483607 | |
| parasitism and pathogenic activity of cytospora cincta sacc. on prunus armeniaca l. and on prunus persica l. batsch. | 1970 | 5457493 | |
| diffusible and extractable growth regulators in normal and dwarf shoot apices of peach, prunus persica batsch. | 1971 | 16657743 | |
| effect of phloroglucinol and resorcinol on the clingstone peach polyphenol oxidase-catalyzed oxidation of 4-methylcatechol. | phloroglucinol and resorcinol are not substrates for clingstone peach (prunus persica) polyphenol oxidase, but they react with 4-methyl-o-quinone, produced either enzymatically or nonenzymatically, to give an intense red or red-brown color with a maximal absorption at about 470 nanometers. several colored products were isolated from an ethyl acetate extract of the reaction by two-dimensional thin layer chromatography. based on thin layer chromatographic and spectral studies of the enzymatic and ... | 1971 | 16657727 |
| isolation and characterization of polyphenol oxidase isozymes of clingstone peach. | the polyphenol oxidase system in clingstone peach (prunus persica) was investigated. polyacrylamide disc-gel electrophoresis indicated four bands with polyphenol oxidase activity in extracts from acetone powder of clingstone peach. these four isozymes were then isolated from a buffer extract of peach acetone powder by cold acetone precipitation, followed by diethylaminoethyl cellulose column chromatography. all isozymes had different heat stabilities. at 55 c, polyphenol oxidases a, b, and d had ... | 1971 | 16657726 |
| separation and characterization of endopolygalacturonase and exopolygalacturonase from peaches. | two polygalacturonases (pg i and pg ii) have been separated from extracts of ripe peaches (prunus persica) by chromatography on sephadex g-100. pg i hydrolyzes polygalacturonic acid from the nonreducing ends of the molecules, releasing galacturonic acid as the product. it functions optimally at ph 5.5, requires ca(2+) for activity, and hydrolyzes low molecular weight substrates most rapidly. in contrast, pg ii cleaves the molecular chain of the substrate randomly with a ph optimum at about 4. th ... | 1973 | 16658542 |
| characteristics of photosynthesis in peach leaves. | seasonal photosynthetic patterns of loring peach (prunus persica (l). batsch) leaves were monitored throughout the 1974 growing season. using leaves on detached branches, co2 exchange was measured under controlled light and temperature conditions. net photosynthesis rate varied from 9 to 12.4 mg co2 dm(-2) leaf area h(-1) and was correlated with fruit development, with the highest values occurring during the final stage of fruit maturation. the proximity of fruits to leaves also regulated photos ... | 1975 | 24430151 |
| pathogenicity of criconemoides xenoplax to prune and plum rootstocks. | elimination of criconemoides xenoplax from a prune orchard soil by fumigation with ethylene dibromide at the rate of 42 muliter/liter of soil (equivalent to about 13 gal/acre) improved the growth of myrobalan plum, addition of this nematode to myrobalan seedlings or young 'marianna 2624' plants propagated from cuttings resulted in destruction of cortical root tissue, darkening of roots, alteration of water stress, lowering of nutrient levels in leaves, and reduction in plant weight. c. xenoplax ... | 1975 | 19308143 |
| some characteristics of ethylene production in peach (prunus persica l.) seeds. | the seed of peach fruits develop the capacity to produce ethylene with a lag phase of about 1 h after excision. the site of ethylene synthesis is in the seed coat and rates as high as 6,000 μl kg(-1) h(-1) were recorded. ethylene production was reduced to less than 1% of the control by 10 μg/ml cycloheximide. although the tissue had only a small methionine pool, supplying the seed with exogenous methionine did not influence ethylene production at any stage of seed development. label from [u-(14) ... | 1976 | 24424902 |
| the effect of (2-chloroethyl)phosphonic acid on the sink strength of developing peach (prunus persica l.) fruit. | the sink strength of one of a pair of competing peach fruits was increased when the fruit was treated with (2-chloroethyl)phosphonic acid (ethephon) and gibberellic acid. ethephon increased the capacity of the treated fruit to attract (14)c-labelled assimilates at most stages of fruit development and was most effective when the level of endogenous ethylene produced by the fruit was lowest. the results are discussed in relation to the hypothesis that ethylene participates in the control of sink s ... | 1976 | 24424772 |
| [studies on the purgative drugs. iii. on the constituents of the flowers of prunus persica batsch (author's transl)]. | 1977 | 557087 | |
| purification and characteristics of sorbitol-6-phosphate dehydrogenase from loquat leaves. | to study the role of sorbitol-6-phosphate dehydrogenase in sorbitol synthesis in leaves of rosaceous plants, properties of the enzyme and its presence in several plants in the family was investigated. the activity of the enzyme, which catalyzes an nadp-dependent oxidation of the substrate to glucose-6-phosphate, was detected in leaves of prunus mume, prunus persica, rhaphiolepsis indica, sorbus aucuparia, cydonia oblonga, photinia glabra, sorbaria kirilowii, and spiraea thunbergii.the enzyme was ... | 1981 | 16661650 |
| characterization and partial purification of aldose-6-phosphate reductase (alditol-6-phosphate:nadp 1-oxidoreductase) from apple leaves. | aldose-6-phosphate reductase (alditol 6-phosphate:nadp 1-oxidoreductase) was isolated and characterized from mature apple leaves (malus domestica cv. starkrimson). the enzyme was purified 79-fold. the enzyme catalyzed the following reversible reaction: d-glucose 6-phosphate + nadph + h(+) right arrow over left arrow d-sorbitol 6-phosphate + nadp(+). no activity was detected when nad(+) was substituted for nadp(+) or when nadh was substituted for nadph. the enzyme reduced d-galactose 6-phosphate ... | 1981 | 16661614 |
| 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 | |
| properties of peach flower buds which facilitate supercooling. | water in dormant peach (prunus persica [l.] batsch. var. ;harbrite') flower buds deep supercooled. both supercooling and the freezing of water within the bud axis and primordium as distinct components depended on the viability of the bud axis tissue. the viability of the primordium was not critical. supercooling was prevented by wounding buds with a dissecting needle, indicating that bud structural features were important. bud morphological features appeared to prevent the propagation of ice thr ... | 1982 | 16662701 |
| leaf water potential, stomatal resistance, and photosynthetic response to water stress in peach seedlings. | individual groups of peach (prunus persica [l.] batsch) seedlings stressed to -17, -26 and -36 bars recovered to control levels within 1, 3, and 4 days, respectively. stomatal resistance was significantly correlated with both leaf water potential and net photosynthesis. in seedlings stressed to -52 bars, leaf water potential and stomatal resistance recovered sooner than net photosynthesis, despite recovery of 0(2) evolution at a rate similar to leaf water potential. therefore, some nonstomatal f ... | 1982 | 16662343 |
| response of peach seedlings to infection by the root lesion nematode pratylenchus penetrans under controlled conditions. | twenty-one open pollinated populations of peach rootstock seedlings were evaluated for their response to infection by the root lesion nematode, pratylenchus penetrans, over a period of 98 days. nematode-infected peach seedling populations were shorter in plant height and had less shoot weight but more dry root weight than nematode-free controls. rootstock differences were demonstrated for nematode increase over the 98-day period, and average total numbers of nematodes in soil and roots. rootstoc ... | 1984 | 19294029 |
| plant-parasitic nematode communities in dogwood, maple, and peach nurseries in tennessee. | nursery blocks (48 dogwood, 27 red maple, and 17 peach) distributed among 20 tennessee nurseries were sampled for nematodes in march, july, and october 1981. plant-parasitic nematodes were extracted from soil, counted by genera, and identified to species after fixation. a total of 57 species in 24 genera were found, with 1-16 species occurring in a site. the species most commonly detected were paratylenchus projectus and xiphinema americanum, which were found in 88% and 78% of the sites, respect ... | 1985 | 19294071 |
| nematode community structure in dogwood, maple, and peach nurseries in tennessee. | nursery blocks (48 dogwood, 27 maple, 17 peach) in 20 middle tennessee nurseries were sampled for nematodes in march,july, and october 1981. dogwoods and maples were grouped in three age classes: 1-2, 3-5, and 10+ years. nematodes were extracted from soil samples, counted, and assigned to trophic groups as follows: plant parasites, microbivores, fungivores, predators, and omnivores (= dorylaimida). total nematode numbers per 200 cm s soil ranged from 52 to 9,166 (mean = 1,785 +/- 1,420). nematod ... | 1985 | 19294070 |
| [peach (prunus persica) pollinosis in people who have not been engaged in growing peaches]. | 1985 | 4038086 | |
| structural and biochemical aspects of peach fruit abscission (prunus persica l. batsch). | the physiological drop of immature fruits was studied in relation to the activation of the abscission zone located between the fruit and the receptacle. light- and electron-microscopy observations demonstrated that this zone consisted of two types of parenchymatous cells: in the distal region, closer to the fruit, were groups of small thick-walled cells with few intercellular spaces; in the proximal region, closer to the pedicel, the stillgrouped cells were larger, polyphenolic-rich, and thick-w ... | 1985 | 24249493 |
| [active protein constituents from the kernel of prunus persica]. | 1986 | 2952323 | |
| association of criconemella xenoplax and fusarium spp. with root necrosis and growth of peach. | criconemella xenoplax, fusarium solani, and f. oxysporum caused necrosis of nemaguard peach feeder roots in greenhouse tests. root necrosis was more extensive in the presence of either fungus than wtih c. xenoplax alone. shoot growth and plant height were less for plants inoculated with f. oxysporum or f. solani than for plants inoculated with the fungi plus c. xenoplax. neither synergistic nor additive effects on root necrosis or plant growth occurred between c. xenoplax and the fungal pathogen ... | 1986 | 19294169 |
| meloidogyne hispanica n. sp. (nematoda: meloidogynidae), the 'seville root-knot nematode'. | meloidogyne hispanica n. sp. is described and illustrated from specimens obtained from peach rootstock, prunus persica silvestris batsch, from the seville district of spain. the perineal pattern of the female is oval shaped to rectangular with low dorsal arch and often widely spaced lateral lines with fringe-like striae. the stylet, 14.1 mum long, has broad, distinctly set off knobs. males have a high, rounded head cap that slopes posteriorly. labial disc and medial lips are fused to form elonga ... | 1986 | 19294222 |
| effect of initial population density of criconemella xenoplax on reducing sugars, free amino acids, and survival of peach seedlings over time. | percentage of mortality, growth suppression, and changes in free amino acid and reducing sugar content in root and (or) stem tissue of nemaguard peach seedlings were studied in the greenhouse in relation to time and eight different initial population densities (pi) of criconemella xenoplax. after 90 and 180 days, free amino acid content in root tissue significantly increased with increasing nematode numbers. suppression of root volume, dry root and stem weight, height increase, plant survival, a ... | 1987 | 19290147 |
| growth and the composition and transport of carbohydrate in compatible and incompatible peach/plum grafts. | the growth of scions and rootstocks of compatible (prunus persica l. batsch cv. springtime/prunus cerasifera l. ehrh. cv. myrobolan p2032) and incompatible (prunus persica l. batsch cv. springtime/prunus cerasifera l. ehrh. cv. myrobolan p18) peach/plum grafts were compared. the composition of soluble carbohydrates in phloem and cortical tissues of both peach/plum grafts and ungrafted plums and the translocation of these compounds across the union of grafted plants were examined. sorbitol and su ... | 1987 | 14975918 |
| 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 |
| measurement of indole-3-acetic acid in peach fruits (prunus persica l. batsch cv redhaven) during development. | the amount of indole-3-acetic acid (iaa) was measured in peach fruits by gas chromatography-mass spectrometry-selective ion monitoring using an isotope dilution assay with [(13)c(6)]iaa as an internal standard throughout the growing season. ethylene evolution of the fruit was also measured. iaa levels were 25 nanograms per gram fresh weight, 18 days after anthesis. both iaa levels and rates of ethylene evolution declined to their lowest levels (7 nanograms iaa per gram fresh weight and 0.01 nano ... | 1987 | 16665467 |
| 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 |
| growth, cambial activity and phloem structure in compatible and incompatible peach/plum grafts. | peach (prunus persica l. batsch) shoots grafted onto compatible or incompatible clones of rootstocks of myrobolan plum (prunus cerasifera l. ehrh. cv. myrobolan) were observed in a greenhouse for 100 days after grafting. the incompatible grafts showed foliar symptoms of incompatibility and reduced shoot growth about 60 days after grafting. light microscopic studies revealed that cambial activity stopped earlier in the rootstocks, than in the scions, of incompatible grafts. structural modificatio ... | 1988 | 14972805 |
| peach leaf senescence delayed by criconemella xenoplax. | fall annual leaf senescence of peach was delayed in the field and in microplots in the presence of criconemella xenoplax. soil from the rhizosphere of orchard trees with greener leaves had ca. 2.5 x more nematodes than soil around trees in a more advanced state of fall senescence. in microplots, monoclonal antibody enzyme immunoassay (eia) of leaf cytokinins indicated that concentration of zeatin riboside-like substances and chlorophyll content were greater in leaves of trees growing in nematode ... | 1988 | 19290258 |
| behavior, parasitism, morphology, and biochemistry of criconemella xenoplax and c. ornata on peach. | host-parasite relationships of criconemella xenoplax and c. ornata on nemaguard peach and common bermudagrass were determined in the greenhouse. criconemella xenoplax reproduced on peach and reduced root volume, height, and dry stem weight after 6 months, compared with the noninfested check. numbers of c. ornata did not increase on peach or influence peach growth, but they did reduce dry top weight and root volume of common bermudagrass, compared with c. xenoplax. criconemella xenoplax and c. or ... | 1988 | 19290183 |
| 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 |
| an experimental test of a nitrogen uptake and partitioning model for young trees. | simulation models of nitrate uptake and total nitrogen partitioning during the exponential growth phase of one-year-old peach trees (prunus persica (l.) batsch.) were tested in an experiment with 88 plants grown in soil-filled containers. plants were fertilized with (15)n-no(3) (-) and nitrate uptake estimated by periodic destructive analysis of plants for excess (15)n. partitioning of n within the trees was followed by the analysis of plant parts for total n and (15)n. the nitrate uptake model, ... | 1989 | 14972966 |
| carbohydrate requirements of peach fruit growth and respiration. | data on the seasonal patterns of fruit growth and dark respiration of two peach (prunus persica (l.) batsch) cultivars were combined with temperature data to calculate the carbohydrate requirements of an "average" peach fruit from bloom to harvest. the two peach cultivars used were june lady (an early maturing (mid-june) cultivar) and o'henry (a late maturing (early-august) cultivar). at harvest, the mean dry weight of the june lady fruit was 17.8 g (139.7 g fresh weight) and of o'henry fruits w ... | 1989 | 14972978 |
| supercooling characteristics of isolated peach flower bud primordia. | the amount of unfrozen water in dormant peach (prunus persica [l.] batsch, cv redhaven) flower buds, isolated primordia, and bud axes was determined during freezing using pulse nuclear magnetic resonance methods. differential thermal analysis studies were conducted on whole buds and isolated primordia in the presence of ice nucleation. the results showed that some of the water in isolated primordia remained supercooled in the presence of ice nucleation. although most tissue water froze (57.5%) f ... | 1989 | 16666658 |
| distribution, frequency, and population density of nematodes in west virginia peach orchards. | nematode population densities were determined in soil and root samples collected from 205 peach (prunus persica l.) orchard blocks between 25 march and 5 may 1986. representative specimens from 75 blocks were identified to species; 28 species of plant-parasitic nematodes were identified. predaceous nematodes (mononchidae) were observed in 71% of the samples. the most common plant-parasitic genera were paratylenchus, helicotylenchus, pratylenchus, and xiphinema, occurring in 85, 84, 77, and 74% o ... | 1990 | 19287785 |
| rapid multiplication of adventitious somatic embryos in peach and nectarine by secondary embryogenesis. | somatic embryos were multiplied by secondary embryogenesis in cotyledonary cultures of peach and nectarine (prunus persica l.) using a simplified culture medium for immature seeds. a three-stage process with an initial callus phase was established in darkness on a medium containing basal salts (modified ms) supplemented with 2,4-d (5 mg/l), kn (2 mg/l) and bap (2 mg/l) and casein hydrolysate (500 mg/l). this was followed by a growth regulator-free medium with activated charcoal for the adventiti ... | 1990 | 24226827 |
| amino acids as determinants of host preference for the xylem feeding leafhopper, homalodisca coagulata (homoptera: cicadellidae). | homalodisca coagulata is a highly polyphagous xylem feeder with distinct seasonal patterns in it's selection of host plants. these patterns were examined in relation to the amino acid content of the xylem for four common host species; lagerstroemia indica, baccharis halimifolia, prunus persica, and prunus salicina. xylem fluid was collected from each host species at times when numbers of feeding leafhoppers were both low and high. in each case, concentrations of amino acids were greatest when nu ... | 1990 | 28313004 |
| 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 |
| dormancy in peach (prunus persica l.) flower buds : i. floral morphogenesis and endogenous gibberellins at the end of the dormancy period. | flower buds of peach (prunus persica l.) trees, cv novedad de cordoba (argentina), were collected near the end of the dormant period and immediately before anthesis. after removal of scale leaves, morphological observations of representative buds, made on transverse and longitudinal microtome sections, showed that all verticils making up the flower are present in an undifferentiated form during the dormant period (june). flower buds collected at the end of dormant period (august) showed addition ... | 1990 | 16667435 |
| meloidogyne morocciensis n. sp. (meloidogyninae), a root-knot nematode from morocco. | meloidogyne morocciensis n. sp. is described from specimens parasitic on peach rootstock from morocco. this species exhibits a combination of morphological characters similar to m. arenaria, m. incognita, and m. javanica. the perineal pattern of females is oval to squarish with a moderately high to high dorsal arch, and widely spaced, smooth striae; lateral lines are absent. the stylet, 16.5 mum long, has transversely ovoid, set-off knobs. males have a set-off, annulated head region. the large, ... | 1990 | 19287722 |
| tests for transmission of prunus necrotic ringspot and two nepoviruses by criconemella xenoplax. | in two of three trials, detectable color reactions in elisa for prunus necrotic ringspot virus (pnrsv) were observed for criconemella xenoplax handpicked from the root zone of infected peach trees. criconemella xenoplax (500/pot) handpicked from root zones of peach trees infected with pnrsv failed to transmit the virus to cucumber or peach seedlings. the nematode also failed to transmit tomato ringspot (tomrsv) or tobacco ringspot viruses between cucumbers, although xiphinema americanum transmit ... | 1990 | 19287748 |
| purification of an anionic isoperoxidase from peach seeds and its immunological comparison with other anionic isoperoxidases. | a soluble anionic isoperoxidase (ec 1,11,1,7) was purified from peach (prunus persica l. batsch cv. merry) seeds. purification was achieved by deae-sephacel, sephacryl s-300 and cm-cellulose chromatography. the purified isoperoxidase de-carboxylated indole-3-acetic acid (s(0.5) 0.13 mm, hill coefficient 1.7). molecular mass, determined by gel filtration and sodium dodecyl sulfate polyacrylamide gel electrophoresis, was ca 60 kda. polyclonal antibodies were raised in rabbit against this isoperoxi ... | 1990 | 21087270 |
| tylenchulus palustris parasitizing peach trees in the of nited states. | most morphological characteristics of three populations of a tylenchulus sp. from peach roots in alabama, arkansas, and georgia did not differ from those of t. palustris paratypes. however, some mature females differed slightly from those of t. palustris paratypes from florida. these mature females were more swollen in the posterior portion of their bodies, and they possessed digitate postvulval body sections with round rather than conoid termini. these morphological variants had a wide postvulv ... | 1990 | 19287688 |
| influence of criconemella xenoplax and pruning time on short life of peach trees. | influences of criconemella xenoplax and pruning dates were studied in field microplots with 'nemaguard' peach cuttings on a site not previously planted to peaches. trees with or without c. xenoplax were pruned beginning in december 1984 or march 1985. peach tree short life (ptsl) did not occur in the absence of c. xenoplax. ptsl occurred earlier in december-pruned than in march-pruned inoculated trees. results confirm that "old" peach sites are not required for ptsl to occur. pruning nemaguard a ... | 1990 | 19287694 |
| 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 |
| mediation of deep supercooling of peach and dogwood by enzymatic modifications in cell-wall structure. | treatment of stem sections of peach (prunus persica (l.) batsch) and flowering dogwood (cornus florida l.) with macerase, an enzyme mixture rich in pectinase, for 24-48 h resulted in a complete flattening of the low-temperature exotherm (lte) as determined by differential thermal analysis (dta). ultrastructural analysis of macerase-treated tissue demonstrated a nearly complete digestion of the pit membrane (black cap and primary cell-wall) of nearly 100% of the xylem-parenchyma cells examined af ... | 1991 | 24194078 |
| xylem sap proteins. | xylem sap from apple (malus domestica borkh), peach (prunus persica batsch), and pear (pyrus communis l.) twigs was collected by means of pressure extrusion. this sap contained a number of acidic peroxidases and other proteins. two other sources of xylem sap used in this study were stem exudates and guttation fluid. similar peroxidases were also found in stem exudates and guttation fluids of strawberry (fragaria x ananassa duch.), tomato (lycopersicum esculentum l.), and cucumber (cucumis sativu ... | 1991 | 16668227 |
| the effect of different atmospheric ozone partial pressures on photosynthesis and growth of nine fruit and nut tree species. | nursery stock of peach (prunus persica l. batsch, cv. o'henry), nectarine (p. persica l. batsch, cv. fantasia), plum (p. salicina lindel., cv. casselman), apricot (p. armeniaca l., cv. tilton), almond (p. dulcis mill., cv. nonpareil), prune (p. domestica l., cv. improved french), cherry (p. avium l., cv. bing), oriental pear (pyrus pyrifolia rehd., cv. 20th century), and apple (malus pumula mill., cv. granny smith) were planted in open-top chambers on april 1, 1988 at the university of californi ... | 1991 | 14972900 |
| level of abscisic acid in integuments, nucellus, endosperm, and embryo of peach seeds (prunus persica l. cv springcrest) during development. | free abscisic acid (aba) in integuments, nucellus, endosperm, and embryo was determined throughout seed development of peach (prunus persica l. cv springcrest). quantification of aba was performed using combined high performance liquid chromatography-radioimmunoassay based on a monoclonal antibody raised against free (s)-aba. in the integuments and endosperm, aba concentration remained constant during the first 100 days after anthesis and rose in the following days when fresh weight was rapidly ... | 1991 | 16668468 |
| effect of macerase, oxalic acid, and egta on deep supercooling and pit membrane structure of xylem parenchyma of peach. | the object of this study was to determine if calcium cross-linking of pectin in the pit membrane of xylem parenchyma restricts water movement which results in deep supercooling. current year shoots of ;loring' peach (prunus persica) were infiltrated with oxalic acid or egta solutions for 24 or 48 hours and then either prepared for ultrastructural analysis or subjected to differential thermal analysis. the effect of 0.25 to 1.0% pectinase (weight/volume) on deep supercooling was also investigated ... | 1991 | 16668341 |
| characterization of peroxidases in lignifying peach fruit endocarp. | developing peach (prunus persica l. batsch ;redskin') fruit were used to characterize the role of peroxidases in lignification. during development, the endocarp of these drupes becomes lignified while the mesocarp remains parenchymatous. acidic peroxidase from lignifying endocarp were similar to those of the fleshy mesocarp. the endocarp had a larger amount and number of basic peroxidases than the mesocarp. cultured peach leaf cells are thought to be lignified because their walls give a positive ... | 1991 | 16667963 |
| carbon fluxes in mature peach leaves. | the turnover and transport of sugars are described in peach (prunus persica l. batsch), a species exporting both sucrose and sorbitol. apparent export rate was slower in peach leaves than in leaves of herbaceous species. sorbitol was the major soluble end product of photosynthesis and the major soluble carbohydrate in the leaf (higher than sucrose). carbon fluxes were described using (14)c labeling, radioactivity loss curves, and compartmental analysis during the second half of the photoperiod w ... | 1992 | 16653212 |
| cell wall changes in nectarines (prunus persica) : solubilization and depolymerization of pectic and neutral polymers during ripening and in mealy fruit. | nectarine fruit (prunus persica l. batsch var nectarina [ait] maxim) cultivar fantasia were either ripened immediately after harvest at 20 degrees c or stored for 5 weeks at 2 degrees c prior to ripening. fruit ripened after 5 weeks of storage did not soften to the same extent as normally ripened fruit, they lacked juice, and had a dry, mealy texture. pectic and hemicellulosic polysaccharides were solubilized from the mesocarp of the fruit using phenol:acetic acid:water (paw) treatment to yield ... | 1992 | 16653106 |
| comparison of pch313 (ptom13 homolog) rna accumulation during fruit softening and wounding of two phenotypically different peach cultivars. | pch313 was isolated as a cdna whose rna accumulated during the softening period of peach (prunus persica l. batsch) fruit development. to better understand the role of the gene, we compared the amount of pch313-related rna detected during fruit softening and tissue wounding between cultivars with different softening characteristics. the cultivar that softened faster, "bailey," had a significantly higher amount of pch313-related rna accumulate during softening than the slower-softening cultivar, ... | 1992 | 16652987 |
| cold acclimation in genetically related (sibling) deciduous and evergreen peach (prunus persica [l.] batsch): i. seasonal changes in cold hardiness and polypeptides of bark and xylem tissues. | seasonal patterns of proteins and of cold hardiness were characterized in bark and xylem tissues of genetically related (sibling) deciduous and evergreen peach (prunus persica [l.] batsch). in contrast with deciduous trees, which entered endodormancy and abscised leaves in the fall, evergreen trees retained their leaves and exhibited shoot elongation under favorable environmental conditions. a successive increase in the cold hardiness of bark and xylem was observed during the fall in both genoty ... | 1992 | 16669074 |
| 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 |
| carbon and nitrogen partitioning in peach/plum grafts. | modifications in root-shoot relationships induced by graft incompatibility were studied in peach/plum graft combinations by means of carbohydrate and nitrogen analyses and isotope labeling. mobilization of stored carbon, phloem transport of carbon, and mobilization, assimilation and distribution of nitrogen were studied in one compatible peach/plum graft (prunus persica l. batsch cv. springtime grafted on prunus cerasifera l. ehrh cv. myrobalan p 2032) and one incompatible graft (prunus persica ... | 1992 | 14969877 |
| comparison of drought resistance among prunus species from divergent habitats. | root and shoot characteristics related to drought resistance were compared among cultivated peach (prunus persica (l.) batsch.), p. andersonii (nevada desert almond), p. besseyi (western sand cherry), p. maritima (beach plum), p. subcordata (sierra or pacific plum), and p. tomentosa (nanking cherry). in all species, shoot characteristics were more closely associated with drought adaptation than root characteristics. the most xeric species, p. andersonii, had the lowest specific leaf area, smalle ... | 1992 | 14969942 |
| 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 |
| establishment of orchards with black polyethylene film mulching: effect on nematode and fungal pathogens, water conservation, and tree growth. | placement of a 3-m-wide, black, polyethylene film mulch down rows of peach (prunus persica 'red haven' on 'lovell' rootstock) and almond (prunus dulcis 'nonpareil' on 'lovell') trees in the san joaquin valley of california resulted in irrigation water conservation of 75%, higher soil temperature in the surface 30 cm, a tendency toward greater root mass, elimination of weeds, and a greater abundance of meloidogyne incognita second-stage juveniles in soil but reduced root galling when compared to ... | 1992 | 19283045 |
| populations of criconemella xenoplax on peach interplanted with certain herbaceous plants. | peach trees growing in field microplots infested with criconemella xenoplax were interplanted with centipedegrass, goosegrass, sicklepod, marigold, buckhorn plantain, showy crotalaria, or perennial ryegrass, or left with weed-free soil as the control. buckhorn plantain reduced nematode numbers, but not to levels acceptable for commercial control. marigold, sicklepod, and goosegrass reduced nematode numbers on some sampling dates but not on others. other plants had no effect or appeared to stimul ... | 1992 | 19283046 |
| dynamics of concomitant populations of meloidogyne incognita and criconemella xenoplax on peach. | the interaction between meloidogyne incognita and criconemella xenoplax on nematode reproduction and growth of lovell peach was studied in field microlots and the greenhouse. meloidogyne incognita suppressed reproduction of c. xenoplax in both field and greenhouse experiments. tree growth, as measured by trunk diameter, was reduced (p </= 0.05) in the presence of m. incognita as compared with c. xenoplax of the uninoculated control trees 26 months following inoculation. a similar response regard ... | 1993 | 19279823 |
| response of peach scion cultivars and rootstocks to meloidogyne incognitain vitro and in microplots. | the response of the peach scion cultivars, jerseyqueen, redhaven, compact redhaven, and rio oso gem and rootstocks 'lovely and 'nemaguard' to inoculation with meloidogyne incognita was compared in vitro and in microplots. one or more parameters monitored in vitro correlated with at least one parameter monitored in microplots, 4 years after tree planting (1989). a range of responses was observed from highlysusceptible in lovell to resistant in nemaguard. in vitro and microplot data suggest high a ... | 1993 | 19279797 |
| effects of six pratylenchus vulnus isolates on the growth of peach-almond hybrid and apple rootstocks. | the effects of six geographic isolates of pratylenchus vulnus on the growth of gf-677 peach-almond hybrid and m-26 apple rootstocks were determined under greenhouse conditions. plantlets were obtained from micropropagated plant material, and nematode isolates were reared in monoxenic cultures. all isolates suppressed growth on gf-677 compared with the uninfected controls. isolate pvro-s from spain affected top weight of gf-677 more adversely than pvat-f from france. final population densities (p ... | 1993 | 19279851 |
| effect of lime on criconemella xenoplax and bacterial canker in two california orchards. | in a peach orchard with an initial soil ph of 4.9, preplant application of 0, 13.2, 18.2, 27.3, or 54.2 kg lime/tree site altered soil ph (range after 1 year = 4.8-7.3) but did not affect numbers of criconemella xenoplax or tree circumference. liming also failed to reduce the incidence of bacterial canker, which affected 17% of the trees by the sixth year after planting. four years after planting, numbers of c. xenoplax exceeded 400/100 cm(3) soil, regardless of treatment. trees with higher dens ... | 1994 | 19279934 |
| optimal levels of meloidogyne incognita inoculum for infection of tomato and peach in vitro. | penetration of second-stage juveniles (j2) of meloidogyne incognita into tomato root explants and in vitro propagated peach plantlet roots were compared. five inoculum levels were used: 25, 50, 75, 100, and 200 j2 for tomato; and 50, 100, 200, 500, and 1,000j2 for peach. the greatest root penetration into tomato was 30% at the 75 j2 level, but the maximum penetration into peach roots was only 8% at the 200 j2 level. the difference (p = 0.05) in penetration of m. incognita at all inoculum levels ... | 1994 | 19279926 |
| [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 |
| 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 |
| 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 |
| 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 |
| 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 |
| targeted mapping and linkage analysis of morphological isozyme, and rapd markers in peach. | nine different f2 families of peach [prunus persica (l.) batsch] were analyzed for linkage relationships between 14 morphological and two isozyme loci. linkage was detected between weeping (we) and white flower (w), 33 cm; double flower (dl) and pillar (br), 10 cm; and flesh color (y) and malate dehydrogenase (mdh1), 26 cm. a leaf variant phenotypically distinct from the previously reported wavy-leaf (wa) mutant in peach was found in progeny of 'davie ii'. the new willow-leaf character (designat ... | 1994 | 24190466 |
| 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 |
| offsetting effects of reduced root hydraulic conductivity and osmotic adjustment following drought. | root hydraulic conductivity (l(p)) and leaf osmotic potential at full turgor (psi(pi,o)) were measured in young, drought-stressed and nonstressed peach (prunus persica (l.) batsch), olive (olea europaea l.), citrumelo (poncirus trifoliata raf. x citrus paradisi macf.) and pistachio (pistachia integerrima l.). drought stress caused a 2.5- to 4.2-fold reduction in l(p), depending on species, but psi(pi,o) was reduced only in citrumelo and olive leaves by 0.34 and 1.4 mpa, respectively. no differen ... | 1995 | 14965946 |
| [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 |
| genetic linkage mapping in peach using morphological, rflp and rapd markers. | we have constructed a genetic linkage map of peach [prunus persica (l.) batsch] consisting of rflp, rapd and morphological markers, based on 71 f2 individuals derived from the self-fertilization of four f1 individuals of a cross between 'new jersey pillar' and kv 77119. this progeny, designated as the west virginia (wv) family, segregates for genes controlling canopy shape, fruit flesh color, and flower petal color, size and number. the segregation of 65 markers, comprising 46 rflp loci, 12 rapd ... | 1995 | 24173944 |
| ethylene enhances shoot formation in cultures of the peach rootstock gf-677 (prunus persica x p. amygdalus). | the influence of ethylene on shoot formation from gf-677 (prunus persica × p. amygdalus) shoot tip explants was studied in vitro. cultures in test tubes were placed inside 5 1 glass jars and supplemented with various ethylene concentrations (0-10 ppm). ethylene at 0.1 ppm, applied during the first 2 weeks of culture, increased the number and the length of shoots produced in vitro. test tubes with cultures sealed with various types of closure accumulated in their atmosphere different levels of et ... | 1995 | 24185661 |
| analysis of molecular markers associated with powdery mildew resistance genes in peach (prunus persica (l.) batsch)xprunus davidiana hybrids. | a progeny of 77 hybrids issued from a cross between two heterozygous prunus, peach [p. persica (l.) batsch] (variety 'summergrand') and a related species, p. davidiana (clone 1908), was analysed for powdery mildew resistance in five independent experiments. this population was also analysed for its genotype with isoenzyme and rapd markers in order to map the genes responsible for resistance. a genetic linkage map was generated for each parent. the 'summergrand' linkage map is composed of only fo ... | 1996 | 24162425 |
| water stress and crop load effects on fruit fresh and dry weights in peach (prunus persica). | effects of water stress on fruit fresh and dry weights were investigated in peach trees, prunus persica (l.) batsch., with varying crop loads: light, moderate and heavy. in well-watered controls, tree water status was independent of crop load. in trees receiving reduced irrigation, the degree of water stress increased with increasing crop load. water stress induced fruit fresh weight reductions at all crop loads. fruit dry weight was not reduced by water stress in trees having light to moderate ... | 1996 | 14871677 |
| utility of rapd markers in identifying genetic linkages to genes of economic interest in peach. | the identification of molecular markers linked to economically important traits for use in crop improvement is very important in long-lived perennial species. three-hundred-and-sixty rapd primers were used with bulked segregant analysis to identify markers linked to loci of specific interest in peach [(prunus persica) l. batch] and peach x almond [(prunus dulcis) batch] crosses. the traits analyzed included flesh color, adhesion, and texture; pollen fertility; plant stature; and three isozyme lo ... | 1996 | 24162426 |
| 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 |