| 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 |
| location of independent root-knot nematode resistance genes in plum and peach. | prunus species express different ranges and levels of resistance to the root-knot nematodes (rkn) meloidogyne spp. in myrobalan plum ( prunus cerasifera), the dominant ma gene confers a high-level and wide-spectrum resistance to the predominant rkn, meloidogyne arenaria, meloidogyne incognita, meloidogyne javanica and the isolate meloidogyne sp. florida which overcomes the resistance of the amygdalus sources. in japanese plum ( prunus salicina), a similar wide-spectrum dominant resistance gene, ... | 2004 | 14569426 |
| crop load affects maximum daily trunk shrinkage of plum trees. | we studied the effects of low fruit load (3-4 fruits cm(-2) of trunk cross-sectional area (tcsa), and high fruit load (6-7 fruits cm(-2) tcsa) on maximum daily trunk shrinkage (mds) and trunk growth rates (tgr) over two seasons in plum (prunus salicina lindell) trees receiving full irrigation or deficit irrigation. seasonal changes in mds and tgr were compared with those in midday stem water potential (psi(s)) and leaf stomatal conductance (g (s)). crop load increased g (s) in fully irrigated tr ... | 2007 | 17169910 |
| induction of apoptosis by immature fruits of prunus salicina lindl. cv. soldam in mda-mb-231 human breast cancer cells. | the goal of this study was to evaluate the anticancer effect of prunus salicina lindl. cv. soldam at three maturity stages (immature, midmature and mature stages). previous studies have shown that this fruit (plums) possesses hematopoiesis effects, prevents osteoporosis and has anti-mutagenic effects. an acetone extract of immature p. salicina lindl. cv. soldam fruit contained higher levels of total phenolics and condensed tannins than midmature and mature plums. the results showed that an aceto ... | 2007 | 17415955 |
| effect of dips in a 1-methylcyclopropene-generating solution on 'harrow sun' plums stored under different temperature regimes. | the effect of postharvest dips in a 1-methylcyclopropene-generating solution of the formulation afxrd-038 (rohm & haas) on plum fruit (prunus salicina lindell cv. 'harrow sun') quality and ripening during storage was determined. fruit weight loss, tissue firmness, soluble solids content (ssc), titratable acidity (ta), ethylene production, respiration, and the activities of the cell wall modifying enzymes polygalacturonase (pg), 1,4-beta-d-glucanase/glucosidase (egase), beta-galactosidase (beta-g ... | 2007 | 17663566 |
| distribution and ecological effect of mercury in laogang landfill, shanghai, china. | laogang landfill near shanghai is the largest landfill in china, and receives about 10000 t of daily garbage per day. samples of topsoil and plants were analyzed to evaluate mercury pollution from the landfill. for topsoil samples, there were significant correlations among total mercury (hgt), combinative mercury (hgc) and gaseous mercury (hgg), and content of total organic carbon (toc), but, no significantly relationship was found between hg content and filling time. hg content changes in verti ... | 2007 | 17915729 |
| isolation and characterization of four ethylene signal transduction elements in plums (prunus salicina l.). | plums are climacteric fruits: their ripening is associated with a burst of ethylene production and respiration rate. stone fruits, including plum, have a distinct pattern of growth and development, described as a double sigmoid pattern. in order to understand the developmental control of ethylene perception in plum, four ethylene perception and signal transduction components (epstcs) were characterized, including two etr1-like proteins (ps-etr1 and ps-ers1), a ctr1-like protein, and an ethylene- ... | 2007 | 18057041 |
| immunostimulatory effects of oriental plum (prunus salicina lindl.). | the fruit of the plum tree (prunus salicina lindl.) has been used as a traditional medicinal food in humans to enhance immunity against infectious agents and to treat cancers. however, limited information exists on the mechanisms responsible for its immune enhancing properties. in this study, the immunostimulatory effects of a methanol extract of plum fruit following methanol evaporation and dissolving in pbs were assessed by in vitro lymphocyte proliferation, tumor cell cytotoxicity, and nitric ... | 2009 | 18262269 |
| nondestructive determination of total soluble solid content and firmness in plums using near-infrared reflectance spectroscopy. | the fruit industry requires rapid, economical, and nondestructive methods for classifying fruit by internal quality, which can be built into the processing line. total soluble solid content and firmness are the two indicators of plum internal quality that most affect consumer acceptance. these parameters are routinely evaluated using methods which involve destruction of the fruit; as a result, only control batches can be analyzed. the development of nondestructive analytical methods would enable ... | 2008 | 18363330 |
| agrobacterium-mediated genetic transformation of prunus salicina. | we report agrobacterium tumefaciens-mediated transformation of two prunus salicina varieties, 'angeleno' and 'larry anne', using a modification of the hypocotyl slice technique previously described for p. domestica. regeneration rates on thidiazuron (tdz) and indole-3-butyric acid (iba) supplemented murashige and skoog (ms) media reached 11% for 'angeleno' and 19% for 'larry anne' hypocotyl slices. transformation using agrobacterium tumefaciens gv3101 harboring a plasmid with the neomycin phosph ... | 2008 | 18493725 |
| differential regulation of four members of the acc synthase gene family in plum. | the regulation of acc synthase (acs) genes was studied in early ('early golden') and late ('shiro') japanese plum cultivars (prunus salicina l.) in order to determine the role of this gene family in fruit ripening. of the four ps-acs cdnas isolated, two (ps-acs1 and -3) showed differential expression between the two cultivars. ps-acs1 accumulated during fruit ripening of 'early golden' ('eg') and 'shiro' ('sh') in ethylene-dependent and -independent manners, respectively. ps-acs3a transcripts ac ... | 2008 | 18535295 |
| influences of cross pollination on pollen tube growth and fruit set in zuili plums (prunus salicina). | zuili plum (prunus salicina l.) trees usually set fruit poorly, although they produce high quality fruit. to elucidate the causes of the poor fruit set, pollen tube growth into pistils and fruit set percentage were investigated after cross-, self- and open-pollination. ovule development in zuili pistils was also investigated. pollen tube penetration into the ovules via the obturator and micropyle was best when zuili pistils were pollinated by cv. black amber (p. domestica) pollen grains, althoug ... | 2008 | 18713443 |
| inhibitory effects of methanol extract of plum (prunus salicina l., cv. 'soldam') fruits against benzo(alpha)pyrene-induced toxicity in mice. | this study was carried out to investigate the chemopreventive effects of immature plum extracts. the methanol extract of immature plums (plum 1), that are picked at 20-40 days before final harvest, has remarkably inhibited the growth of hepatoma hepg2 cells. the effects of immature plum extracts on hepatotoxicity in benzo(alpha)pyrene (b(alpha)p, carcinogen)-treated mice were investigated. male icr mice were pretreated with immature plum extracts (2.5 or 5 g/kg bw/day, for 5 days, i.p.) before t ... | 2008 | 18786596 |
| interference between d and m types of plum pox virus in japanese plum assessed by specific monoclonal antibodies and quantitative real-time reverse transcription-polymerase chain reaction. | abstract the dynamics of virus interference between two isolates of plum pox virus (ppv) belonging to the main ppv types, d and m, were analyzed in japanese plum (prunus salicina) by challenge inoculations. to assess the consequences of a ppv-m infection on plum already infected with ppv-d, and vice versa (predominance of one of the strains, recombination, synergism, symptoms aggravation, and so on), 30 japanese plum trees were graft inoculated with ppv-d or ppv-m isolates in quarantine conditio ... | 2006 | 18944448 |
| molecular characterization of seven genes encoding ethylene-responsive transcriptional factors during plum fruit development and ripening. | seven erf cdnas were cloned from two japanese plum (prunus salicina l.) cultivars, 'early golden' (eg) and 'shiro' (sh). based on the sequence characterization, these ps-erfs could be classified into three of the four known erf families. their predicted amino acid sequences exhibited similarities to erfs from other plant species. functional nuclear localization signal analyses of two ps-erf proteins (ps-erf1a and -1b) were carried out using confocal microscopy. expression analyses of ps-erf mrna ... | 2009 | 19213809 |
| inhibitory effect of immature plum on pma-induced mmp-9 expression in human hepatocellular carcinoma. | the goal of this study was to evaluate the anticancer effect of prunus salicina lindl. cv. soldam at three maturity stages (immature, midmature and mature). in search for anticancer effects of immature plum extract (ipe), we have found its antimigrative property in (phorbol 12-myristate 13-acetate) pma-induced hepg2 cells, and this effect is associated with inhibition of mmp-9 activity. ipe appeared to have a strong inhibitory effect on the pma-induced mmp-9 secretion through suppression of the ... | 2009 | 19418353 |
| [parasitoids (hymenoptera: braconidae) of fruit flies (diptera: tephritidae) in the state of são paulo, brazil: associated plants and parasitism]. | a total of 3,008 braconid parasitoids in 26 species of fruit fly host plants were collected in 33 localities of são paulo state. the majority of the braconids (96.2%) belonged to four opiinae species, doryctobracon areolatus (szépligeti), doryctobracon brasiliensis (szépligeti), opius bellus (gahan) and utetes anastrephae (viereck), and the remaining 3.8%, a single species of alysiinae, asobara anastrephae (muesebeck). doryctobracon areolatus was collected on anastrepha fraterculus (wied), a. ob ... | 2009 | 19618046 |
| induction of apoptosis by immature plum in human hepatocellular carcinoma. | in the present study, the effect of an extract of immature prunus salicina lindl. cv. soldam fruit on the viability and induction of apoptosis in human hepatocellular carcinoma hepg2 cells was investigated. the results showed that in comparison with other cancer cells, the growth inhibition exerted by immature plum extracts was greatest in hepg2. apoptosis in hepg2 cells mediated by immature plums was associated with "death receptor signaling." immature plum extracts significantly increased the ... | 2009 | 19627199 |
| compositional changes in cell wall polysaccharides from japanese plum ( prunus salicina lindl.) during growth and on-tree ripening. | climacteric japanese plums were harvested at six developmental stages with no intermediate storage period, and cell wall compositional changes were analyzed. arabinose proved to be the principal neutral monosaccharide constituent in cell walls during growth and the most dynamic neutral sugar in pectic fractions. arabinose loss from tightly bound pectins was found to be a relatively early feature in the sequence of cell wall biochemical modifications, thus suggesting a softening-related role duri ... | 2010 | 20099830 |
| regulation of two germin-like protein genes during plum fruit development. | germin-like proteins (glps) have several proposed roles in plant development and defence. two novel genes (ps-glp1 and 2) encoding germin-like protein were isolated from plum (prunus salicina). their regulation was studied throughout fruit development and during ripening of early and late cultivars. these two genes exhibited similar expression patterns throughout the various stages of fruit development excluding two important stages, pit hardening (s2) and fruit ripening (s4). during fruit devel ... | 2010 | 20202999 |
| novel paraconiothyrium species on stone fruit trees and other woody hosts. | coniothyrium-like fungi are common wood and soil inhabitants and hyperparasites on other fungi. they belong to different fungal genera within the pleosporales. several isolates were obtained on wood of different prunus species (plum, peach and nectarine) from south africa, on actinidia species from italy and on laurus nobilis from turkey. morphological and cultural characteristics as well as dna sequence data (5.8s nrdna, its1, its2, partial ssu nrdna) were used to characterise them. the isolate ... | 2008 | 20467483 |
| novel phaeoacremonium species associated with necrotic wood of prunus trees. | the genus phaeoacremonium is associated with opportunistic human infections, as well as stunted growth and die-back of various woody hosts, especially grapevines. in this study, phaeoacremonium species were isolated from necrotic woody tissue of prunus spp. (plum, peach, nectarine and apricot) from different stone fruit growing areas in south africa. morphological and cultural characteristics as well as dna sequence data (5.8s rdna, its1, its2, beta-tubulin, actin and 18s rdna) were used to iden ... | 2008 | 20467488 |
| coniochaeta (lecythophora), collophora gen. nov. and phaeomoniella species associated with wood necroses of prunus trees. | species of the genus coniochaeta (anamorph: lecythophora) are known as pathogens of woody hosts, but can also cause opportunistic human infections. several fungi with conidial stages resembling lecythophora were isolated from necrotic wood samples of prunus trees in south africa. in order to reveal their phylogenetic relationships, these fungi were studied on a morphological and molecular (5.8s nrdna, its-1, its-2, gapdh, ef-1alpha, 28s nrdna, 18s nrdna) basis. some of the isolates were identifi ... | 2010 | 20664761 |
| identification and genetic characterization of a gibberellin 2-oxidase gene that controls tree stature and reproductive growth in plum. | several dwarf plum genotypes (prunus salicina l.), due to deficiency of unknown gibberellin (ga) signalling, were identified. a cdna encoding ga 2-oxidase (pslga2ox), the major gibberellin catabolic enzyme in plants, was cloned and used to screen the ga-deficient hybrids. this resulted in the identification of a dwarf plum hybrid, designated as dgo24, that exhibits a markedly elevated pslga2ox signal. grafting 'early golden' (eg), a commercial plum cultivar, on dgo24 (eg/d) enhanced pslga2ox acc ... | 2011 | 22080981 |
| identification and characterization of botrytis blossom blight of japanese plums caused by botrytis cinerea and b. prunorum sp. nov. in chile. | blossom blight is a destructive disease of plums (prunus salicina) when humid and temperate weather conditions occur in chile. disease incidence ranging from 4 to 53% has been observed. symptoms include light brown petal necrosis, starting as light brown mottles or v-shaped necrosis at the margins of the petals, progressing to the stamen and pistils. in this study, the etiology of blossom blight of plums was determined. high- and low-sporulating isolates of botrytis were obtained consistently fr ... | 2016 | 26474331 |
| characterization of new isolates of apricot vein clearing-associated virus and of a new prunus-infecting virus: evidence for recombination as a driving force in betaflexiviridae evolution. | double stranded rnas from prunus samples gathered from various surveys were analyzed by a deep-sequencing approach. contig annotations revealed the presence of a potential new viral species in an azerbaijani almond tree (prunus amygdalus) and its genome sequence was completed. its genomic organization is similar to that of the recently described apricot vein clearing associated virus (avcav) for which two new isolates were also characterized, in a similar fashion, from two japanese plums (prunus ... | 2015 | 26086395 |
| cloning of nad-sdh cdna from plum fruit and its expression and characterization. | a full-length cdna consisting of 1444 bp for nad dependent sorbitol dehydrogenase (nad-sdh) was cloned from fruit of plum (prunus salicina var. cordata cv. younai) by means of rt-pcr and race. the cdna containing an open reading frame (orf) of 1101 bp encoded a polypeptide of 367 amino acid residues. the maltose binding protein fusion sdh (mbp-sdh) was expressed and partially purified from escherichia coli cells, and biochemical properties of mbp-sdh and sdh cleaved from the fusion protein by fa ... | 2012 | 22721947 |
| in vitro assays of the antibacterial and antioxidant activity of aqueous leaf extracts from different prunus salicina lindl. cultivars. | the growing interest in the substitution of synthetic food antioxidants and antimicrobial additives by natural ones has fostered research on vegetable sources and on the screening of raw materials, for identifying new antioxidants and antimicrobial natural agents. the aim of the present study was to assess total phenolic contents and determine polyphenolic composition, related antioxidative and antimicrobial properties of plum leaves extracts from six cultivars. it was observed that the content ... | 2012 | 22381259 |
| wild food plants used by the tibetans of gongba valley (zhouqu county, gansu, china). | the ethnobotany of tibetans is a seriously under-studied topic. the aim of the study was to investigate knowledge and use of wild food plants in a valley inhabited by tibetans in the gannan tibetan autonomous region. | 2014 | 24502461 |
| effect of host plants on developmental time and life table parameters of carposina sasakii (lepidoptera: carposinidae) under laboratory conditions. | studies were designed to examine the effects of host plants (apricot, prunus armeniaca l.; plum, prunus salicina l.; peach, prunus persica l.; jujube, zizyphus jujuba will.; apple, malus domestica mill.; and pear, pyrus sorotina will) on the development and life table parameters of the peach fruit moth, carposina sasakii matsumura (lepidoptera: carposinidae) under laboratory conditions. peach fruit moth developed faster (12.48 d) and had the highest preimaginal survival rate (50.54%) on plum com ... | 2012 | 22507008 |
| dose-morality and large-scale studies for controlling codling moth (lepidoptera: tortricidae) eggs on 'd'agen' plums by using methyl bromide. | codling moth, cydia pomonella (l.), eggs on 'd'agen' cultivar of plums, prunus salicina lindl., were treated with methyl bromide to determine if a quarantine treatment could be developed so that the plums could be exported to japan from the united states. small-scale tests consisted of treating codling moth eggs on plums with various doses of methyl bromide at 20 degrees c for 2 h. small-scale tests showed that 0- to 24-h-old eggs of codling moth on the plums were controlled by doses > 22.5 g/m3 ... | 1999 | 10504898 |