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molecular cloning and expression analyses of rps3a gene from mulberry under abiotic stresses and among different mulberry varieties.a full-length cdna sequence coding ribosomal protein s3a of mulberry tree, which we designated mmrps3a (genbank accession no. kr610331), was cloned based on mulberry expressed sequence tags. sequence analysis showed that the mmrps3a is 1089 bp long and contains a 80-bp 5'-utr (untranslated region) and a 220-bp 3'-utr. its open reading frame consists of a 789-bp encoding 262 amino acids with a predicted molecular weight of 30.053 kda and an isoelectric point of 9.84. homology analysis revealed th ...201627173298
draft genome sequence of two strains of xanthomonas arboricola isolated from prunus persica which are dissimilar to strains that cause bacterial spot disease on prunus spp.the draft genome sequences of two strains of xanthomonas arboricola, isolated from asymptomatic peach trees in spain, are reported here. these strains are avirulent and do not belong to the same phylogroup as x. arboricola pv. pruni, a causal agent of bacterial spot disease of stone fruits and almonds.201627609931
host plant effects on halyomorpha halys (hemiptera: pentatomidae) nymphal development and survivorship.halyomorpha halys(stål) (hemiptera: pentatomidae) is a highly polyphagous invasive species and an important pest of orchard crops in the united states. in the mid-atlantic region, wild hosts ofh. halysare common in woodlands that often border orchards, andh. halysmovement from them into orchards poses ongoing management issues. to improve our understanding of host plant effects onh. halyspopulations at the orchard-woodland interface, nymphal survivorship, developmental duration, and adult fitnes ...201627012749
fighting sharka in peach: current limitations and future perspectives.sharka, caused by plum pox virus (ppv), is by far the most important infectious disease of peach [p. persica (l.) batsch] and other prunus species. the progressive spread of the virus in many important growing areas throughout europe poses serious issues to the economic sustainability of stone fruit crops, peach in particular. the adoption of internationally agreed-upon rules for diagnostic tests, strain-specific monitoring schemes and spatial-temporal modeling of virus spread, are all essential ...201627625664
genome-wide association links candidate genes to resistance to plum pox virus in apricot (prunus armeniaca).in fruit tree species, many important traits have been characterized genetically by using single-family descent mapping in progenies segregating for the traits. however, most mapped loci have not been sufficiently resolved to the individual genes due to insufficient progeny sizes for high resolution mapping and the previous lack of whole-genome sequence resources of the study species. to address this problem for plum pox virus (ppv) candidate resistance gene identification in prunus species, we ...201626356603
evolutionary genomics of peach and almond domestication.the domesticated almond [prunus dulcis (l.) batsch] and peach [p. persica (mill.) d. a. webb] originated on opposite sides of asia and were independently domesticated ∼5000 yr ago. while interfertile, they possess alternate mating systems and differ in a number of morphological and physiological traits. here, we evaluated patterns of genome-wide diversity in both almond and peach to better understand the impacts of mating system, adaptation, and domestication on the evolution of these taxa. almo ...201627707802
using perls staining to trace the iron uptake pathway in leaves of a prunus rootstock treated with iron foliar fertilizers.the aim of this study was to trace the fe uptake pathway in leaves of prunus rootstock (gf 677; prunus dulcis × prunus persica) plants treated with foliar fe compounds using the perls blue method, which detects labile fe pools. young expanded leaves of fe-deficient plants grown in nutrient solution were treated with fe-compounds using a brush. iron compounds used were the ferrous salt feso4, the ferric salts fe2(so4)3 and fecl3, and the chelate fe(iii)-edta, all of them at concentrations of 9 mm ...201627446123
amelioration of testosterone induced benign prostatic hyperplasia by prunus species.benign prostatic hyperplasia (bph) is a common urological disorder of men. the ethnomedicinal use of an african plant prunus africana (hook.f.) kalkman (pygeum) in treating men's problems made it a popular remedy all over the globe for the treatment of bph and related disorders. however, rampant collections made from the wild in africa have pushed the plant to appendix ii of cites demanding conservation of the species.201627235020
between china and south asia: a middle asian corridor of crop dispersal and agricultural innovation in the bronze age.the period from the late third millennium bc to the start of the first millennium ad witnesses the first steps towards food globalization in which a significant number of important crops and animals, independently domesticated within china, india, africa and west asia, traversed central asia greatly increasing eurasian agricultural diversity. this paper utilizes an archaeobotanical database (ascad), to explore evidence for these crop translocations along southern and northern routes of interacti ...201627942165
simulation of carbon allocation and organ growth variability in apple tree by connecting architectural and source-sink models.plant growth depends on carbon availability and allocation among organs. qualitree has been designed to simulate carbon allocation and partitioning in the peach tree (prunus persica), whereas mapplet is dedicated to the simulation of apple tree (malus × domestica) architecture. the objective of this study was to couple both models and adapt qualitree to apple trees to simulate organ growth traits and their within-tree variability.201627279576
can phenological models predict tree phenology accurately in the future? the unrevealed hurdle of endodormancy break.the onset of the growing season of trees has been earlier by 2.3 days per decade during the last 40 years in temperate europe because of global warming. the effect of temperature on plant phenology is, however, not linear because temperature has a dual effect on bud development. on one hand, low temperatures are necessary to break bud endodormancy, and, on the other hand, higher temperatures are necessary to promote bud cell growth afterward. different process-based models have been developed in ...201627272707
gene expression changes during the gummosis development of peach shoots in response to lasiodiplodia theobromae infection using rna-seq.lasiodiplodia theobromae is a causal agent of peach (prunus persica l.) tree gummosis, a serious disease affecting peach cultivation and production. however, the molecular mechanism underlying the pathogenesis remains unclear. rna-seq was performed to investigate gene expression in peach shoots inoculated or mock-inoculated with l. theobromae. a total of 20772 genes were detected in eight samples; 4231, 3750, 3453, and 3612 differentially expressed genes were identified at 12, 24, 48, and 60 h a ...201627242544
tnl genes in peach: insights into the post-lrr domain.plants develop sustainable defence responses to pathogen attacks through resistance (r) genes contributing to effector-triggered immunity (eti). tir-nb-lrr genes (tnl genes) constitute a major family of eti r genes in dicots. the putative functions or roles of the tir, nb and lrr domains of the proteins they encode (tnls) are well documented, but tnls also have a poorly characterised c-terminal region, the function of which is unknown in most cases. we characterised this prevalent stress-respons ...201627129402
characterization and comparison of the cpk gene family in the apple (malus × domestica) and other rosaceae species and its response to alternaria alternata infection.as one of the ca2+ sensors, calcium-dependent protein kinase (cpk) plays vital roles in immune and stress signaling, growth and development, and hormone responses, etc. recently, the whole genome of apple (malus × domestica), pear (pyrus communis), peach (prunus persica), plum (prunus mume) and strawberry (fragaria vesca) in rosaceae family has been fully sequenced. however, little is known about the cpk gene family in these rosaceae species. in this study, 123 cpk genes were identified from fiv ...201627186637
bioactive compounds contents, antioxidant and antimicrobial activities during ripening of prunus persica l. varieties from the north west of tunisia.bioactive molecules from fruits of four varieties of prunus persica at different stages of ripening (green, small orange, red) were studied. for example, contents on polyphenols (20.36mg gae/g fw) and flavonoids (0.764mg re/g fw) were high and varied according variety. the antioxidant activity, using four different tests (dpph radical scavenging activity, reducing power, β carotene bleaching system and tbars assay) showed that the variety chatos exhibited the highest antioxidant activity compari ...201626988472
genome-wide identification, expression patterns, and functional analysis of udp glycosyltransferase family in peach (prunus persica l. batsch).peach (prunus persica l. batsch) is a commercial grown fruit trees, important because of its essential nutrients and flavor promoting secondary metabolites. the glycosylation processes mediated by udp-glycosyltransferases (ugts) play an important role in regulating secondary metabolites availability. identification and characterization of peach ugts is therefore a research priority. a total of 168 peach ugt genes that distributed unevenly across chromosomes were identified based on their conserv ...201728382047
a rapid silica spin column-based method of rna extraction from fruit trees for rt-pcr detection of viruses.efficient recovery of high quality rna is very important for successful rt-pcr detection of plant rna viruses. high levels of polyphenols and polysaccharides in plant tissues can irreversibly bind to and/or co-precipitate with rna, which influences rna isolation. in this study, a silica spin column-based rna isolation method was developed by using commercially available silica columns combined with the application of a tissue lysis solution, and binding and washing buffers with high concentratio ...201728583858
genome-wide characterization, evolution, and expression analysis of the leucine-rich repeat receptor-like protein kinase (lrr-rlk) gene family in rosaceae genomes.leucine-rich repeat receptor-like protein kinase (lrr-rlk) is the largest gene family of receptor-like protein kinases (rlks) and actively participates in regulating the growth, development, signal transduction, immunity, and stress responses of plants. however, the patterns of lrr-rlk gene family evolution in the five main rosaceae species for which genome sequences are available have not yet been reported. in this study, we performed a comprehensive analysis of lrr-rlk genes for five rosaceae ...201729017442
genome-wide analysis suggests the relaxed purifying selection affect the evolution of wox genes in pyrus bretschneideri, prunus persica, prunus mume, and fragaria vesca.wuschel-related homeobox (wox) family is one of the largest group of transcription factors (tfs) specifically found in plant kingdom. wox tfs play an important role in plant development processes and evolutionary novelties. although the roles of woxs in arabidopsis and rice have been well-studied, however, little are known about the relationships among the main clades in the molecular evolution of these genes in rosaceae. here, we carried out a genome-wide analysis and identified 14, 10, 10, and ...201728663757
genome-wide analysis suggests high level of microsynteny and purifying selection affect the evolution of ein3/eil family in rosaceae.the ethylene-insensitive3/ethylene-insensitive3-like (ein3/eil) proteins are a type of nuclear-localized protein with dna-binding activity in plants. although the ein3/eil gene family has been studied in several plant species, little is known about comprehensive study of the ein3/eil gene family in rosaceae. in this study, ten, five, four, and five ein3/eil genes were identified in the genomes of pear (pyrus bretschneideri), mei (prunus mume), peach (prunus persica) and strawberry (fragaria vesc ...201728584725
the divergence of flowering time modulated by ft/tfl1 is independent to their interaction and binding activities.flowering locus t (ft) and terminal flower1 (tfl1) proteins share highly conserved amino acid residues but they play opposite regulatory roles in promoting and repressing the flowering response, respectively. previous substitution models and functional analysis have identified several key amino acid residues which are critical for the promotion of flowering. however, the precise relationship between naturally occurring ft/tfl1 homologs and the mechanism of their role in flowering is still unclea ...201728533784
comparative proteomic and metabolomic studies between prunus persica genotypes resistant and susceptible to taphrina deformans suggest a molecular basis of resistance.the worldwide-distributed leaf peach curl disease is caused by the biotroph taphrina deformans. to characterize the plant-fungus interaction, resistant and susceptible prunus persica genotypes grown in the orchard were studied. asymptomatic leaves were tested for fungal presence. in all resistant leaves analyzed the fungus was not detected. conversely, leaves from the susceptible genotype were categorized according to the presence or absence of the pathogen. comparative metabolomic analysis disc ...201728651230
peach leaf curl disease shifts sugar metabolism in severely infected leaves from source to sink.peach leaf curl is a disease that affects the leaves of peach trees, and in severe cases all of the leaf can be similarly affected. this study investigated some effects of this disease on the metabolism of peach leaves in which all parts of the leaf were infected. these diseased leaves contained very little chlorophyll and performed little or no photosynthesis. compared to uninfected leaves, diseased leaves possessed higher contents of fructose and especially glucose, but lowered contents of suc ...201728012288
chemometric evaluation of trace metals in prunus persica l. batech and malus domestica from minićevo (serbia).the samples of spatial soils and different organs of prunus persica l. batech and malus domestica were analyzed by methods such as inductively coupled plasma optical emission spectroscopy (icp-oes), hierarchical cluster analysis (hca), one-way anova, and calculation of biological accumulation factors (bafs) with the aim of investigating whether these methods may help in the evaluation of trace metals in plants, as well as in the estimation of plant bioaccumulation potentials. icp-oes provided ac ...201727664673
dna methylation and small interference rnas participate in the regulation of mads-box genes involved in dormancy in sweet cherry (prunus avium l.).epigenetic modifications can yield information about connections between genotype, phenotype variation and environmental conditions. bud dormancy release in temperate perennial fruit trees depends on internal and environmental signals such as cold accumulation and photoperiod. previous investigations have noted the participation of epigenetic mechanisms in the control of this physiological process. we examined whether epigenetic modifications were modulated in mads-box genes, potential candidate ...201728541567
dual regulation of water retention and cell growth by a stress-associated protein (sap) gene in prunus.we have identified a gene (ppsap1) of prunus persica coding for a stress-associated protein (sap) containing zn-finger domains a20 and an1. saps have been described as regulators of the abiotic stress response in plant species, emerging as potential candidates for improvement of stress tolerance in plants. ppsap1 was highly expressed in leaves and dormant buds, being down-regulated before bud dormancy release. ppsap1 expression was moderately induced by water stresses and heat in buds. in additi ...201728336950
unraveling early events in the taphrina deformans - prunus persica interaction: an insight into the differential responses in resistant and susceptible genotypes.leaf peach curl is a devastating disease affecting leaves, flowers and fruits caused by the dimorphic fungus taphrina deformans. to gain insight into the mechanisms of fungus pathogenesis and plant responses, leaves of a resistant and two susceptible p. persica genotypes were inoculated with blastospores (yeast), and the infection was monitored during 120 hpi. fungal dimorphism to the filamentous form and induction of ros, callose synthesis, cell death, and defense compound production was observ ...201728244594
comparative study of proteasome inhibitory, synergistic antibacterial, synergistic anticandidal, and antioxidant activities of gold nanoparticles biosynthesized using fruit waste materials.the aim of this study was to compare the biological synthesis of gold nanoparticles (aunps) generated using the aqueous extracts of outer oriental melon peel (omp) and peach. the synthesized omp-aunps and peach extract (pe)-aunps were characterized by ultraviolet-visible spectroscopy, field emission scanning electron microscopy, energy dispersive x-ray analysis, x-ray powder diffraction, fourier transform infrared spectroscopy, and thermogravimetric analysis. the surface plasmon resonance spectr ...201727695326
draft genome sequence of venturia carpophila, the causal agent of peach scab.venturia carpophila causes peach scab, a disease that renders peach (prunus persica) fruit unmarketable. we report a high-quality draft genome sequence (36.9 mb) of v. carpophila from an isolate collected from a peach tree in central georgia in the united states. the genome annotation is described and a phylogenetic analysis of the pathogen is presented. the genome sequence will be a useful resource for various studies on the pathogen, including the biology and ecology, taxonomy and phylogeny, h ...201729213355
improvement of physico-chemical properties and phenolic compounds bioavailability by concentrating dietary fiber of peach (prunus persica) juice by-product.this study aimed to concentrate dietary fiber (df) from peach (prunus persica) juice by-product (pjbp), to improve its functional properties, and its polyphenols bioavailability. the dietary fiber concentrates (dfcs) were obtained from pjbp using water/ethanol treatments (100:0, 20:80, 50:50, 80:20, and 0:100, v/v) at 1:5 ratio (wet weight/solvent, w/v) for 5 and 20 min at 21 °c.201729210447
identification and characterization of prunus persica mirnas in response to uvb radiation in greenhouse through high-throughput sequencing.micrornas (mirnas) are small non-coding rnas that regulate gene expression of target mrnas involved in plant growth, development, and abiotic stress. as one of the most important model plants, peach (prunus persica) has high agricultural significance and nutritional values. it is well adapted to be cultivated in greenhouse in which some auxiliary conditions like temperature, humidity, and uvb etc. are needed to ensure the fruit quality. however, little is known about the genomic information of p ...201729197334
a model for temporal dynamics of brown rot spreading in fruit orchards.brown rot, caused by monilinia spp., is a major disease of stone fruits and, in favorable environmental conditions and in the absence of fungicide treatments, it causes important economic losses. in the present work, we propose a modification of classical susceptible, exposed, infectious and removed (seir) compartmental models to grasp the peculiarities of the progression of brown rot epidemics in stone fruit orchards in the last stage of the fruit growth (i.e. from the end of the pit hardening ...201729182471
effects of postharvest oligochitosan treatment on fungal diseases and defence responses in dongxue peach fruit.in this study, the effects of oligochitosan treatment on controlling postharvest diseases in dongxue peach ( prunus persica l. batsch, cv dongxuemi) were examined and the possible underlying mechanisms were discussed. results showed that the disease incidence and lesion area in peach fruit inoculated with monilinia fructicola and penicillium expansum were all remarkably reduced by oligochitosan treatment. oligochitosan treatment inhibited spore germination and mycelial growth of the two fungi in ...201729084489
the peach rgf/glv signaling peptide pctg134 is involved in a regulatory circuit that sustains auxin and ethylene actions.in vascular plants the cell-to-cell interactions coordinating morphogenetic and physiological processes are mediated, among others, by the action of hormones, among which also short mobile peptides were recognized to have roles as signals. such peptide hormones (phs) are involved in defense responses, shoot and root growth, meristem homeostasis, organ abscission, nutrient signaling, hormone crosstalk and other developmental processes and act as both short and long distant ligands. in this work, ...201729075273
chromatin-associated regulation of sorbitol synthesis in flower buds of peach.ppes6pdh gene is postulated to mediate sorbitol synthesis in flower buds of peach concomitantly with specific chromatin modifications. perennial plants have evolved an adaptive mechanism involving protection of meristems within specialized structures named buds in order to survive low temperatures and water deprivation during winter. a seasonal period of dormancy further improves tolerance of buds to environmental stresses through specific mechanisms poorly known at the molecular level. we have ...201729038917
the phyllochron of well-watered and water deficit mature peach trees varies with shoot type and vigour.the branch construction of trees is based on phytomers, repetitive subunits defined as node + leaf + axillary meristem + internode. the rate at which phytomers are added to a shoot is termed the phyllochron, which is determined by genetics, endogenous regulation and environmental conditions. the phyllochron is fundamental to understanding the growth of plants. most phyllochron studies on woody species are of young plants under controlled conditions without consideration for different types of sh ...201729026512
phosphorylation coexists with o-glcnacylation in a plant virus protein and influences viral infection.phosphorylation and o-glcnacylation are two widespread post-translational modifications (ptm), often affecting the same eukaryotic target protein. plum pox virus (ppv) is a member of the genus potyvirus that infects a wide range of plant species. o-glcnacylation of the capsid protein (cp) of ppv has been extensively studied, and some evidence about cp phosphorylation has been additionally reported. here, we use proteomics analyses to demonstrate that ppv cp is phosphorylated in vivo at the n-ter ...201729024291
differential sensitivity of fruit pigmentation to ultraviolet light between two peach cultivars.anthocyanins provide nutritional benefits and are responsible for red coloration in many fruits. light affects anthocyanin biosynthesis in peach (prunus persica). however, some cultivars show differential sensitivity to light. in the present study, 'hujingmilu (hj),' a naturally deeply colored cultivar, and 'yulu (yl),' showing low pigmentation, were used to study the mechanism underlying uv-light-induced anthocyanin biosynthesis. both uva and uvb induced fruit pigmentation of 'hj,' but 'yl' was ...201728943881
determination of quality changes in peaches wrapped in active paper and stored at ambient temperature in summer.peaches are known for their palatable flavor and abundant nutrients. however, peaches are perishable, and the existing preservation techniques for peaches are still immature. to further extend the shelf life and prevent nutrient loss of perishable peaches under ambient temperature in summer (approximately 25-32 °c), we conducted experiments wrapping peaches (prunus persica cv 'baihua') in single- and composite-treated vegetal fibrous papers that contained calcium carbonate, phytic acid, na-algin ...201728928436
deep sequencing reveals the first fabavirus infecting peach.a disease causing smaller and cracked fruit affects peach [prunus persica (l.) batsch], resulting in significant decreases in yield and quality. in this study, peach tree leaves showing typical symptoms were subjected to deep sequencing of small rnas for a complete survey of presumed causal viral pathogens. the results revealed two known viroids (hop stunt viroid and peach latent mosaic viroid), two known viruses (apple chlorotic leaf spot trichovirus and plum bark necrosis stem pitting-associat ...201728900201
deciphering the interplay among genotype, maturity stage and low-temperature storage on phytochemical composition and transcript levels of enzymatic antioxidants in prunus persica fruit.the aim of this study was to understand the antioxidant metabolic changes of peach (cvs. 'royal glory', 'red haven' and 'sun cloud') and nectarine fruits (cv. 'big top') exposed to different combinations of low-temperature storage (0, 2, 4 weeks storage at 0 °c, 90% r.h.) and additional ripening at room temperature (1, 3 and 5 d, shelf life, 20 °c) with an array of analytical, biochemical and molecular approaches. initially, harvested fruit of the examined cultivars were segregated non-destructi ...201728881278
complete genome sequence of nectarine stem pitting-associated virus, isolated from prunus persica in cheongdo county, south korea.we report here the first complete genome sequence of a south korean isolate of nectarine stem pitting-associated virus (nspav) from peach and compare it with previously described complete nspav genome sequences. the highest whole-genome nucleotide sequence identity was 95.3% with genbank accession no. kt273409 (nspav) from the united states.201728860259
heat treatment as postharvest tool for improving quality in extra-early nectarines.extra-early nectarine cultivars such as 'viowhite 5' could present a lack of organoleptic and nutritional quality. heat treatments (ht) can be applied to improve their primary characteristics. in this experiment, control (non-treated), ht1 (3 h; 45 °c) and ht2 (2 h; 50 °c) were studied. fruit were stored (10 days; 0 ± 0.5 °c; 90-95% rh) followed by a simulated retail sale period (3 days; 15 °c; 70-75% rh).201728786114
investigation of the aroma of commercial peach (prunus persica l. batsch) types by proton transfer reaction-mass spectrometry (ptr-ms) and sensory analysis.the aim of this study was to investigate the aroma and sensory profiles of various types of peaches (prunus persica l. batsch.). forty-three commercial cultivars comprising peaches, flat peaches, nectarines, and canning peaches (pavías) were grown over two consecutive harvest years. fruits were assessed for chemical aroma and sensory profiles. chemical aroma profile was obtained by proton transfer reaction-mass spectrometry (ptr-ms) and spectral masses were tentatively identified with ptr-time o ...201728784469
discovery and annotation of plant endogenous target mimicry sequences from public transcriptome libraries: a case study of prunus persica.novel transcript discovery through rna sequencing has substantially improved our understanding of the transcriptome dynamics of biological systems. endogenous target mimicry (etm) transcripts, a novel class of regulatory molecules, bind to their target micrornas (mirnas) by base pairing and block their biological activity. the objective of this study was to provide a computational analysis framework for the prediction of putative etm sequences in plants, and as an example, to discover previously ...201728672765
genome-enabled predictions for fruit weight and quality from repeated records in european peach progenies.highly polygenic traits such as fruit weight, sugar content and acidity strongly influence the agroeconomic value of peach varieties. genomic selection (gs) can accelerate peach yield and quality gain if predictions show higher levels of accuracy compared to phenotypic selection. the available ipsc 9k snp array v1 allows standardized and highly reliable genotyping, preparing the ground for gs in peach.201728583089
integrated qtl detection for key breeding traits in multiple peach progenies.peach (prunus persica (l.) batsch) is a major temperate fruit crop with an intense breeding activity. breeding is facilitated by knowledge of the inheritance of the key traits that are often of a quantitative nature. qtls have traditionally been studied using the phenotype of a single progeny (usually a full-sib progeny) and the correlation with a set of markers covering its genome. this approach has allowed the identification of various genes and qtls but is limited by the small numbers of indi ...201728583082
identification of reference genes for rt-qpcr analysis in peach genotypes with contrasting chilling requirements.selecting and validating reference genes are the first steps in studying gene expression by reverse transcriptase-quantitative polymerase chain reaction (rt-qpcr). the present study aimed to evaluate the stability of five reference genes for the purpose of normalization when studying gene expression in various cultivars of prunus persica with different chilling requirements. flower bud tissues of nine peach genotypes from embrapa's peach breeding program with different chilling requirements were ...201728549208
indoor simulations reveal differences among plant species in capturing particulate matter.a number of studies have focused on the capacity of urban trees and shrubs to serve as efficient biological filters to mitigate air pollution. in this study, five different tree species were assessed for this function. kerria japonica, sophora japonica, philadelphus pekinensis, gleditsia sinensis, and prunus persica 'atropurpurea' were tested in a deposition chamber using (nh4)2so4 particles. we quantified and compared the capability of all tested trees to remove particles by assessing depositio ...201728520744
differential responses of peach (prunus persica) seedlings to elevated ozone are related with leaf mass per area, antioxidant enzymes activity rather than stomatal conductance.to evaluate the ozone (o3) sensitivity among peach tree (prunus persica) cultivars widely planted in beijing region and explore the possible eco-physiological response mechanisms, thirteen cultivars of peach seedlings were exposed to either charcoal-filtered air or elevated o3 (e-o3, non-filtered ambient air plus 60 ppb) for one growing season in open-top chambers. leaf structure, stomatal structure, gas exchange and chlorophyll a fluorescence, photosynthetic pigments, antioxidant defense system ...201728482318
protective effect of white-fleshed peach (prunus persica (l.) batsch) on chronic nicotine-induced toxicity.nicotine is a major toxic component of tobacco smoke and has been recognized as a risk factor to induce oxidative tissue damage, which is a precursor to cardiovascular diseases, lung-related diseases, and cancers. peaches (prunus persica) have been used for the treatment of degenerative disorders, such as hypermenorrhea, dysmenorrhea, and infertility in asian countries. in this study, we investigated the effects of white-fleshed peach on the excretion of nicotine metabolites and 1-hydroxypyrene ...201728382283
the peach v2.0 release: high-resolution linkage mapping and deep resequencing improve chromosome-scale assembly and contiguity.the availability of the peach genome sequence has fostered relevant research in peach and related prunus species enabling the identification of genes underlying important horticultural traits as well as the development of advanced tools for genetic and genomic analyses. the first release of the peach genome (peach v1.0) represented a high-quality wgs (whole genome shotgun) chromosome-scale assembly with high contiguity (contig l50 214.2 kb), large portions of mapped sequences (96%) and high base ...201728284188
acyl-coa oxidase 1 is involved in γ-decalactone release from peach (prunus persica) fruit.γ-decalactone accumulation in peach mesocarp was highly correlated with acx enzyme activity and natural ppacx1 content. adding the purified recombinant ppacx1 induced γ-decalactone biosynthesis in cultured mesocarp discs in vitro. previous gene expression studies have implied that acyl coenzyme a oxidase (acx) is related to lactones synthesis, the characteristic aroma compounds of peach. here, we analysed the correlation between γ-decalactone content and acx enzyme activity in mesocarp of five d ...201728238071
complete nucleotide sequence and genome organization of peach virus d, a putative new member of the genus marafivirus.the complete nucleotide sequence of peach virus d (pevd) from prunus persica was determined. the pevd genome consists of 6,612 nucleotides excluding the 3' poly(a) tail and contains a single open reading frame coding for a polyprotein of 227 kda. sequence comparisons and phylogenetic analysis revealed that pevd is most closely related to viruses in the genus marafivirus, family tymoviridae. the complete nucleotide and cp amino acid sequences of pevd were most similar (51.1-57.8% and 32.2-48.0%, ...201728188372
inhibition of recombinant aldose-6-phosphate reductase from peach leaves by hexose-phosphates, inorganic phosphate and oxidants.glucitol, also known as sorbitol, is a major photosynthetic product in plants from the rosaceae family. this sugar alcohol is synthesized from glucose-6-phosphate by the combined activities of aldose-6-phosphate reductase (ald6prase) and glucitol-6-phosphatase. in this work we show the purification and characterization of recombinant ald6prase from peach leaves. the recombinant enzyme was inhibited by glucose-1-phosphate, fructose-6-phosphate, fructose-1,6-bisphosphate and orthophosphate. oxidiz ...201728011870
phenotypic characterization of qualitative parameters and antioxidant contents in peach and nectarine fruit and changes after jam preparation.sugars and antioxidants in peaches contribute to fresh fruit quality and nutrition; however, information on widely grown cultivars and changes induced after peach jam preparation is limited. in the present study, colour, sugars and antioxidant parameters were determined in fruit and jam from 45 peach and nectarine cultivars.201727990650
effect of paeotang on tumor necrosis factor α-induced vascular inflammation in human umbilical vein endothelial cells.to investigate whether paeotang (10-50 μg/ml) suppresses tumor necrosis factor α (tnf-α)-induced vascular inflammatory processes in human umbilical vein endothelial cells (huvec).201728116663
comparative transcriptome and microscopy analyses provide insights into flat shape formation in peach (prunus persica).fruit shape is an important external characteristic that consumers use to select preferred fruit cultivars. in peach, the flat fruit cultivars have become more and more popular worldwide. genetic markers closely linking to the flat fruit trait have been identified and are useful for marker-assisted breeding. however, the cellular and genetic mechanisms underpinning flat fruit formation are still poorly understood. in this study, we have revealed the differences in fruit cell number, cell size, a ...201729354151
identification of a melting type variant among peach (p. persica l. batsch) fruit textures by a digital penetrometer.the increase of peach (prunus persica l. batsch) fruit shelf-life is one of the most important objectives of breeding activities, as peach is a highly perishable fruit which undergoes rapid softening during ripening. the loss of fruit firmness is accompanied by a modification of textural properties. at least four distinct textures were described in peach: melting, non-melting, stony-hard, and slow-melting (better defined as "slow-softening"). flesh textures are usually discriminated using differ ...201729266307
genome-wide profiling of small rnas and degradome revealed conserved regulations of mirnas on auxin-responsive genes during fruit enlargement in peaches.auxin has long been known as a critical phytohormone that regulates fruit development in plants. however, due to the lack of an enlarged ovary wall in the model plants arabidopsis and rice, the molecular regulatory mechanisms of fruit division and enlargement remain unclear. in this study, we performed small rna sequencing and degradome sequencing analyses to systematically explore post-transcriptional regulation in the mesocarp at the hard core stage following treatment of the peach (prunus per ...201729236054
ethanol extract of root of prunus persica inhibited the growth of liver cancer cell hepg2 by inducing cell cycle arrest and migration suppression.liver cancer is the second most lethal cancer and hepatocellular carcinoma (hcc) is the primary cancer subgroup. however, the current chemotherapy agents remain ineffective and present wide side effects for advanced hcc patient. in this study, we investigated the antitumor role of ethanol extract of root of peach tree (prunus persica (l.) batsch and hereafter designated as tsg in short of its chinese name), which is an important ingredient in chinese medicine prescription, in liver cancer cell h ...201729234432
peachvar-db: a curated collection of genetic variations for the interactive analysis of peach genome data.applying next-generation sequencing (ngs) technologies to species of agricultural interest has the potential to accelerate the understanding and exploration of genetic resources. the storage, availability and maintenance of huge quantities of ngs-generated data remains a major challenge. the peachvar-db portal, available at http://hpc-bioinformatics.cineca.it/peach, is an open-source catalog of genetic variants present in peach (prunus persica l. batsch) and wild-related species of prunus genera ...201829216377
irrigation and weed control alter soil microbiology and nutrient availability in north carolina sandhill peach orchards.orchard management practices such as weed control and irrigation are primarily aimed at maximizing fruit yields and economic profits. however, the impact of these practices on soil fertility and soil microbiology is often overlooked. we conducted a two-factor experimental manipulation of weed control by herbicide and trickle irrigation in a nutrient-poor peach (prunus persica l. cv. contender) orchard near jackson springs, north carolina. after three and eight years of treatments, an array of so ...201828988087
evolution analysis of dof transcription factor family and their expression in response to multiple abiotic stresses in malus domestica.as a family of transcription factors, dna binding with one figure (dof) proteins play important roles in various biological processes in plants. here, a total of 60 putative apple (malus domestica) dof genes (mddof) were identified and mapped to different chromosomes. chromosomal distribution and synteny analysis indicated that the expansion of the mddof genes came primarily from segmental and duplication events, and from whole genome duplication, which lead to more dof members in apples than in ...201828986315
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