Publications

TitleAbstractYear(sorted ascending)
Filter
PMID
Filter
comparative transcriptome profiling and morphology provide insights into endocarp cleaving of apricot cultivar (prunus armeniaca l.).a complete and hardened endocarp is a typical trait of drupe fruits. however, the 'liehe' (le) apricot cultivar has a thin, soft, cleavable endocarp that represents 60.39% and 63.76% of the thickness and lignin content, respectively, of the 'jinxihong' (jg) apricot (with normal hardened-endocarp). to understand the molecular mechanisms behind the le apricot phenotype, comparative transcriptomes of prunus armeniaca l. were sequenced using illumina hiseq™ 2500.028399812
sterols and squalene in apricot (prunus armeniaca l.) kernel oils: the variety as a key factor.the profile of sterols and squalene content in oils recovered from the kernels of 15 apricot (prunus armeniaca l.) varieties were investigated. nine sterols (campesterol, β-sitosterol, δ5-avenasterol, 24-methylene-cycloartanol, cholesterol, gramisterol, δ7-stigmasterol, δ7-avenasterol and citrostadienol) were identified in apricot kernel oils. the β-sitosterol was the predominant sterol in each cultivar and consisted of 76-86% of the total detected sterols. the content of total sterols and squal ...026745662
isolation and identification of quercetin and isoquercitrin from apricots, prunus armeniaca. 195313051182
effects of dehydration processes on flavour compounds and histology of apricots (prunus armeniaca). 19665913166
parasitism and pathogenic activity of cytospora cincta sacc. on prunus armeniaca l. and on prunus persica l. batsch. 19705457493
the occurrence of nitrate reductase in leaves of prunus species.nitrate reductase was found in leaves of apricot prunus armeniaca, sour cherry p. cerasus, sweet cherry p. avium, and plum p. domestica, but not in peach p. persica, from trees grown in sand culture receiving a nitrate containing nutrient solution. nitrate was found in the leaves of all species. nitrate and nitrate reductase were found in leaves of field-grown apricot, sour cherry, and plum trees. the enzyme-extracting medium contained insoluble polyvinylpyrrolidone, and including dithiothreitol ...197216658037
[eco-physiological investigations on wild and cultivated plants in the negev desert : iii. daily courses of net photosynthesis and transpiration at the end of the dry period].the daily course of net photosynthesis and transpiration was measured with temperature and humidity controlled cuvettes at the end of the dry summer season in the negev desert. species studied included: dominant species of the natural vegetation, cultivated plants in the run-off farm avdat and permanently irrigated plants. an analysis of the influence of single climatic factors on gas exchange was given in part ii of this publication. the reactions of the plants to complex changes in all the env ...197228313070
[eco-physiological investigations on wild and cultivated plants in the negev desert : ii. the influence of climatic factors on carbon dioxide exchange and transpiration at the end of the dry period].the influence of climatic factors on net photosynthesis, dark respiration and transpiration was investigated in the negev desert at the end of the dry summer period when plant water stress was at a maximum. species studied included: dominant species of the natural vegetation (artemisia herba-alba, hammada scoparia, noaea mucronata, reaumuria negevensis, salsola inermis, zygophyllum dumosum), cultivated plants receiving rainfall and run-off water during the winter season in the run-off farm avdat ...197228311256
stomatal responses to changes in humidity in plants growing in the desert.the stomata of plants growing in the negev desert, namely the stomata of the mesomorphic leaves of prunus armeniaca, the xeromorphic stems of hammada scoparia, and the succulent leaves of zygophyllum dumosum, respond to changes in air humidity. under dry air conditions diffusion resistance increases. under moist air conditions diffusion resistance decreases. when the stomata close at low air humidity the water content of the apricot leaves increases. the stomata open at high air humidity in spit ...197224473858
stomatal responses to changes in temperature at increasing water stress.the response of stomata to a gradual increase in temperature at increasing plant water stress was studied in a hot desert habitat (negev, israel) in the field, but under controlled temperature and humidity conditions. four native species (zygophyllum dumosum, artemisia herba-alba, hammada scoparia, reaumuria negevensis) and one cultivated plant (prunus armeniaca) were used in these studies. the stomatal response to temperature was compared with the response in well-irrigated plants of the same s ...197324474309
the role of air humidity and leaf temperature in controlling stomatal resistance of prunus armeniaca l. under desert conditions : i. a simulation of the daily course of stomatal resistance.experiments with prunus armeniaca were carried out under conditions of constant temperature but varying air humidity. experiments were also contucted with a constant water vapor difference between the evaporating sites in a leaf and the air, but with varying leaf temperature. these served as a basis for predicting the daily course of total diffusion resistance under the natural climatic conditions of a desert. for the simulation, the rsults of the experiments at constant conditions with only one ...197428309023
the temperature-related photosynthetic capacity of plants under desert conditions : i. seasonal changes of the photosynthetic response to temperature.temperature dependence of net photosynthesis under conditions of light saturation and maximum air humidity was measured throughout the season in the central negev desert (israel). experimental plants were the wild growing hammada scoparia and prunus armeniaca cultivated in the runoff farm of avdat.the optimum temperature for net photosynthesis and the upper temperature compensation point of co2 exchange showed a characteristic seasonal variation with low values in spring and fall and high values ...197428309018
cation penetration through isolated leaf cuticles.the rates of penetration of various cations through isolated apricot prunus armeniaca l. leaf cuticles were determined. steady state rates were measured by using a specially constructed flow-through diffusion cell. the penetration rates of the monovalent cations in group ia followed a normal lyotropic series, i.e., cs(+) >/= rb(+) > k(+) > na(+) > li(+). the divalent cations all penetrated through the cuticle more slowly than the monovalent cations. comparison of the relative values of k (permea ...197416658777
the role of air humidity and temperature in controlling stomatal resistance of prunus armeniaca l. under desert conditions : iii. the effect on water use efficiency.measurements of co2 and water vapor exchange were performed on prunus armeniaca l. with humidity- and temperature-controlled chambers under the climatic conditions of a desert habitat. in apricot, the stomatal response to changes in temperature and water-vapor concentration difference between leaf and air (wd) significantly determined the rates of gas exchange during the day (parts i and ii). the effect of climate-controlled stomatal response on the transpiration/net photosynthesis (t/p)-ratio w ...197528309242
the role of air humidity and leaf temperature in controlling stomatal resistance of prunus armeniaca l. under desert conditions : ii. the significance of leaf water status and internal carbon dioxide concentration.the gas exchange of the apricot (prunus armeniaca l.) growing in the runoff farm at avdat (negev, israel) was measured during its growing period using temperature- and humidity-controlled chambers. water potentials of the xylem were measured with a pressure bomb, and the mesophyll internal co2 concentration was calculated from simultaneous measurements of net photosynthesis and transpiration.the daily changes in water potential ψ had only little effect on the daily course of stomatal resistance. ...197528308679
the temperature-related photosynthetic capacity of plants under desert conditions : ii. possible controlling mechanisms for the seasonal changes of the photosynthetic response to temperature.in a previous paper seasonal shifts of the temperature optimum (op) and of the upper temperature compensation point (cp) of net photosynthesis were described for hammada scoparia growing wild, and for prunus armeniaca cultivated in the negev desert (israel). in this paper the relationships between these shifts and the microclimatic conditions, plant-water relations, and plant development are studied.the energy budged of the thin, round photosynthesizing stems of h. scoparia growing in an open de ...197528308814
plant cuticles are polyelectrolytes with isoelectric points around three.the isoelectric points of isolated cuticles from citrus aurantium l. (3.15), prunus armeniaca l. (3.45), and pyrus communis l. (2.90) leaves were determined from membrane potentials. at ph values below the isoelectric point, cuticular membranes carry a net positive charge and are permselective to anions (determined using (82)br(-)). above the isoelectric point, they carry a net negative charge and are permselective to cations (determined using (24)na(+)). there are no gradients of fixed charges ...197716659804
fusarium wilt of prunus armeniaca seedlings.fusarium solani (mart.) sacc. was found to be the causal pathogen of fusarium wilt of prunus armeniaca seedlings. the fungus pathogenicity could be correlated with the increase in its mycelial growth and conidial germination under the influence of the host root exudates, volatile and gaseous exudates of either germinating seeds or roots, and the content of the host seedlings. chromatographic and biological detection for indol derivatives in host root exudates indicated the presence of beta-indol ...1977878711
the temperature-related photosynthetic capacity of plants under desert conditions : iii. ecological significance of the seasonal changes of the photosynthetic response to temperature.as described earlier, the native arido-active perennial hammada scoparia and the cultivated prunus armeniaca exhibit characteristic seasonal shifts of their temperature optimum of net photosynthesis (op) under desert conditions in the negev. in the present paper the op values were compared with the actual tissue temperatures of the experimental plants.during the growing period from march to september the duration of optimal temperatures for net photosynthesis (op±3°c) experienced by the plants w ...197828309390
development of a photosynthesis model with an emphasis on ecological applications : v. test of the applicability of a steady-state model to description of net photosynthesis of prunus armeniaca under field conditions.a physiologically based steady-state model of whole leaf photosynthesis (wholephot) is used to describe net photosynthesis daily time courses in prunus armeniaca. net photosynthesis rates are calculated in response to incident light intensity, leaf temperature, air carbon dioxide concentration, and leaf diffusion resistance measured at five minute intervals. the steady-state calculations closely approximate the observed net photosynthesis rates for a broad range of weather conditions and leaf st ...198028309523
long-term effects of drought on wild and cultivated plants in the negev desert : ii. diurnal patterns of net photosynthesis and daily carbon gain.the seasonal change in diurnal patterns of net photosynthesis and daily carbon gain is studied in relation to the plant water status of the irrigated and non-irrigated naturally growing desert species hammada scoparia, zygophyllum dumosum, artemisia herba-alba and reaumuria negevensis. comparison is made to cultivated prunus armeniaca. under non-irrigated natural conditions hammada scoparia, a c4 plant, showed one-peaked flat diurnal courses of co2 uptake which changed into a pattern of a high m ...198028310931
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 ...198116661614
purification and properties of a proline iminopeptidase from apricot seeds.a proline iminopeptidase was purified about 18,000-fold from apricot seeds (prunus armeniaca linn.) by a five-step procedure comprised of extraction from seeds, ammonium sulfate fractionation, deae-cellulose chromatography, cm-sepharose chromatography, and rechromatography on cm-sepharose. the purified enzyme had a molecular weight of 220,000 by gel filtration and 55,000 by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. this indicates that the native enzyme may be composed of four id ...19827130149
identification of gibberellins a(1), a(5), a(29), and a(32) from immature seeds of apricot (prunus armeniaca l.).gibberellins (gas) a(1), a(5), and a(29) were identified, and also ga(32) was confirmed, as endogenous gas of immature seeds (3-4 weeks after anthesis, 0.25-0.5 gram fresh weight) of apricot (prunus armeniaca l.) based on capillary gas chromatography (gc), retention time (rt), and selected ion monitoring (sim), in comparison with authentic standards. fractions subjected to gc-sim were purified and separated using sequential solvent partitioning --> paper chromatography --> reverse phase c(18) hi ...198516664256
metabolism of [h]gibberellin a(5) by immature seeds of apricot (prunus armeniaca l.).immature seeds of apricot (prunus armeniaca l.) were fed the native gibberellin a(5) (ga(5)) as 1- and 1,2-[(3)h]ga(5) (5.3 curies per millimole to 16 millicuries per millimole) at doses (42 nanograms to 10.6 micrograms per seed) 2 to 530 times the expected endogenous level. after 4 days of incubation, seeds were extracted and free [(3)h]ga-like metabolites were separated from the highly h(2)o-soluble [(3)h]metabolites. for high specific activity feeds the retention times (rts) of radioactive pe ...198716665189
[microwave processing method of semen armeniacae amarum].this paper reports the microwave processing method of semen armeniacae amarum (prunus armeniaca var. ansu). the experimental results showed that amygdalase was completely inactivated and the contents of amygdaloside were not reduced at all. the time and temperature of the processing method have also been studied.19911909138
[antimutagenic substances in the armeniacae semen and persicae semen].using the ames/salmonella/microsome assay, we examined the antimutagenic effect of the hexane extract of armeniacae semen (apricot (prunus armeniaca l.) seed), persicae semen (peach (p. persica bat.) seed), and seeds of cherry (p. avium l.), plum (p. salicina lindle) and almond (p. dulcis mill). hexane extracts of armeniacae semen and persicae semen inhibited the mutagenicity of benzo[a]pyrene (b[a]p), but those of seeds of cherry, plum and almond did not. the mutagenicities of 3-amino-1,4-dimet ...19921294719
regeneration of transgenic plants of prunus armeniaca containing the coat protein gene of plum pox virus.a system was developed which allows the transfer of foreign genes into apricot cultivars. we report the transformation and regeneration of prunus armeniaca plants with agrobacterium tumefaciens strain lba 4404 containing various binary plasmids, pbingusint, carrying the marker gene ß-glucuronidase (gus) and pbinppvm, carrying the coat protein gene of plum pox virus (ppv). the marker gene gus was used for optical evaluation of the efficiency of the transformation system. the coat protein gene of ...199224213032
microbial degradation of amygdalin of bitter apricot seeds (prunus armeniaca).amygdalin is a cyanogenic glycoside occurring among others in almonds and bitter apricot seeds with interesting levels of dietary protein. utilization of seeds for human or animal nutrition requires adequate detoxification. in the present paper, selected filamentous fungi (mucor circinelloides, penicillium nalgiovense) and yeasts (hanseniaspora valbyensis, endomyces fibuliger) were tested for their in-situ ability to decompose amygdalin. the latter (endomyces fibuliger) was best able to grow on ...19957710917
safety evaluation of wild apricot oil.wild apricot, a variety of prunus armeniaca, grows in the hilly regions of india. the seeds yield 27% of kernels. the potential availability of the kernels is 40,000 tons/year and these yield 47% of oil. the oil has 94% unsaturated fatty acids, rich in oleic and linoleic acids. systemic effects and nutritional quality of wild apricot oil (wao) were assessed in a 13-wk feeding study in weanling albino rats using a diet containing 10% wao as the sole source of dietary fat. a similar diet containin ...19979225016
application of two-dimensional gel electrophoresis to prunus armeniaca leaf and bark tissues.the protein composition of prunus armeniaca bark and leaf tissues was investigated by two-dimensional gel electrophoresis. three different extraction procedures were tested in order to obtain reproducible gels with numerous spots of high intensity. the best results were achieved with extraction in tris-buffer in the presence of a nonionic detergent, reducing agents, and polyphenol oxidase inhibitors. as many as 744 protein spots were resolved from leaf tissues. the patterns exhibited well-focuse ...19979059840
an a-type proanthocyanidin from prunus armeniaca.roots of prunus armeniaca yielded a new a-type proanthocyanidin whose structure was assigned as ent-epiafzelechin-3-o-p-hydroxybenzoate-(4alpha-->8, 2alpha-->o-->7)-epiafzelechin (1). the structure of 1 was determined through extensive 1d and 2d nmr studies.19989748379
relationship between concentration of plum pox virus and content of pigments in virus-infected symptomatic apricot leaves.besides other factors, occurrence of plum pox virus (ppv)-caused spots and mosaic symptoms on leaves of stone fruits are known to influence important physiological functions including production of assimilates. apricot (prunus armeniaca l.) seedlings were used as a test material for typical manifestation of symptoms of the disease on the foliage. the relations of the abovementioned visual symptoms to the virus and pigments concentrations in leaves have so far not been known sufficiently. we dete ...199810073220
citrus and prunuscopia-like retrotransposons.many of the world's most important citrus cultivars ("washington navel", satsumas, clementines) have arisen through somatic mutation. this phenomenon occurs fairly often in the various species and varieties of the genus.the presence of copia-like retrotransposons has been investigated in fruit trees, especially citrus, by using a pcr assay designed to detect copia-like reverse transcriptase (rt) sequences. amplification products from a genotype of each the following species citrus sinensis, citr ...199922665184
[a preliminary study of two chinese herbs protective tablets on some chinese traditional medicines].the protective action of 2 tablets of chinese herb to 5 chinese traditional medicines against harm of insects and mildews was tested. it was found that 2 tablets have a obvious effects of insect-repellency and mouthproof in the test with homalomena occulta and prunus armeniaca, the bore in the medicinal materials was decreased 94.95% and 95.55% respectively than that of check. the tablets have some effects of mildewproof in the test with tussilago farfara.199912571894
molecular cloning and characterization of apricot fruit polyphenol oxidase.a reverse transcriptase-polymerase chain reaction experiment was done to synthesize a homologous polyphenol oxidase (ppo) probe from apricot (prunus armeniaca var bergeron) fruit. this probe was further used to isolate a full-length ppo cdna, pa-ppo (accession no. af020786), from an immature-green fruit cdna library. pa-ppo is 2070 bp long and contains a single open reading frame encoding a ppo precursor peptide of 597 amino acids with a calculated molecular mass of 67.1 kd and an isoelectric po ...199910198084
water stress preconditioning to improve drought resistance in young apricot plants.the effect of water stress preconditioning was studied in 1-year-old apricot plants (prunus armeniaca l., cv. búlida). plants were submitted to different treatments, t-0 (control treatment) and t-1, drip irrigated daily; t-2 and t-3, irrigated daily at 50% and 25% of t-0, respectively; t-4 and t-5, irrigated to field capacity every 3 and 6 days, respectively. after 30 days, irrigation was withheld for 10 days, maintaining the t-0 treatment irrigated daily. after this period, the plants were re-i ...200010936532
two a-type proanthocyanidins from prunus armeniaca roots.two a-type proanthocyanidins, ent-epiafzelechin-(4alpha-->8, 2alpha-->o-->7)-(-)-epicatechin and its isomer, ent-epiafzelechin-(4alpha-->8', 2alpha-->o-->7')-catechin, together with other known compounds, have been isolated from the roots of prunus armeniaca. the concerted use of one- and two-dimensional nmr methods (1h-(1)h cosy, hmqc, hmbc and noesy) allowed the identification of these compounds.200010844162
changes in the carotenoid content of apricot (prunus armeniaca, var bergeron) during enzymatic browning: β-carotene inhibition of chlorogenic acid degradation.considering the numerous beneficial effects in human health ascribed to carotenoids, studies were performed to investigate the modification of carotenoid amount and composition during apricot enzymatic browning. first works on bruised apricot purees have shown a trans-β-carotene isomerisation (20%) induced by enzymatic browning. to clarify this isomerisation, oxidation of chlorogenic acid in presence of trans-β-carotene, catalysed by purified apricot polyphenoloxidase (ppo), was followed by hplc ...200029345797
[stable carbon isotope characteristics of some woody plants in warm temperate zone].it was found that the delta 13c values of the foliar, trunk, flower, and fruit of some woody plants in broad-leaved forest in warm temperate zone were affected by many factors, and showed a great interspecific difference and temporal and spatial heterogeneity. the intraspecific variation of delta 13c values was also great, with the order of vitex negundo var. heterophylla 6.549@1000(-22.226@1000(-)-28.775@1000), fraxinus rhynchophylla 5.706@1000(-23.687@1000(-)-29.393@1000), jugans mandshurica 5 ...200011767664
response of antioxidative enzymes to plum pox virus in two apricot cultivars.recent evidence has indicated that activated oxygen species (aos) may function as molecular signals in the induction of defence genes. in the present work, the response of antioxidative enzymes to the plum pox virus (ppv) was examined in two apricot (prunus armeniaca l.) cultivars, which behaved differently against ppv infection. in the inoculated resistant cultivar (goldrich), a decrease in catalase (cat) as well as an increase in total superoxide dismutase (sod) and dehydroascorbate reductase ...200111240915
pesticide applications of copper on perennial crops in california, 1993 to 1998.inorganic copper is used as a broad-spectrum fungicide and bacteriocide on a variety of agricultural crops. after application, the copper residue typically accumulates in the upper 15 cm of soil. data from the california pesticide use reports were used to estimate the augmentation of copper in the soil that resulted from pesticide applications for the six years from 1993 to 1998 on 12 crops that are grown without rotation. the estimated mean mg cu kg(-1) soil added to the upper 15 cm during the ...200111577894
determination of the primary structure of two lipid transfer proteins from apricot (prunus armeniaca).it has been recently demonstrated that the major allergen of apricot is a protein of molecular mass (mr) 9000 belonging to the family of lipid transfer protein. the aim of this study was the determination of the primary structure of apricot ltp by micro-sequencing and mass spectrometric analyses. apricot ltp is a 91 amino acids protein like peach and almond ltps with a sequence identity of 91% and 94%, respectively. like for the peach ltp, out of the 25 amino acids forming the inner surface of t ...200111419703
early detection of graft incompatibility in apricot (prunus armeniaca) using in vitro techniques.graft compatibility has been studied in vitro using callus tissues of apricot (prunus armeniaca) and different prunus rootstocks to form scion/rootstock combinations with different degrees of graft compatibility. in these species, incompatibility is manifested by a breakdown of the trees at the union area that can occur some years after grafting. here, the possibility of obtaining an early detection method to determine graft incompatibility is explored by callus fusion in vitro. the adhesion of ...200111319025
the genetic diversity of apulian apricot genotypes (prunus armeniaca l.) assessed using aflp markers.apricot is an important crop in italy and, especially in southern regions, in the last five years numerous plantings using new cultivars and appropriate cultural management have been established. the cultivars available were created in different environments (usa, france, new zealand, etc), they then often show low adaptability to italian conditions. however, in the south of italy, it is still possible to safeguard and to exploit a considerable amount of the apricot genetic variation available i ...200212378246
effects of exogenous propylene on softening, glycosidase, and pectinmethylesterase activity during postharvest ripening of apricots.apricots (prunus armeniaca l. cv. boccuccia spinosa) picked at the commercial ripening stage [soluble solids content (ssc) 12.6%] were left to reach full ripening in continuously humidified air at 20 degrees c. changes in the rate of ethylene production, firmness, soluble solids concentration, and titratable acidity were measured. the alpha-d- and beta-d-glucosidases, alpha-l-arabinofuranosidase, alpha-d- and beta-d-galactosidases, beta-d-xylosidase, and alpha-d-mannosidase activities were assay ...200211879017
molecular characterization and similarity relationships among apricot ( prunus armeniaca l.) genotypes using simple sequence repeats.a collection of 48 apricot genotypes, originated from diverse geographic areas, have been screened with 37 ssr primer pairs developed in different species of prunus in order to identify and characterize the genotypes and establish their genetic relations. thirty one of those primer pairs resulted in correct amplifications and 20 produced polymorphic repeatable amplification patterns with the 48 genotypes studied. a total of 82 alleles were detected for the 20 loci. all the genotypes studied coul ...200212582704
genetic linkage maps of two apricot cultivars ( prunus armeniaca l.), and mapping of ppv (sharka) resistance.genetic linkage maps for two apricot cultivars have been constructed using aflp, rapd, rflp and ssr markers in 81 f1 individuals from the cross 'goldrich' x 'valenciano'. this family segregated for resistance to 'plum pox virus' (ppv), the most-important virus affecting prunus species. of the 160 rapd arbitrary primers screened a total of 44 were selected. sixty one polymorphic rapd markers were scored on the mapping population: 30 heterozygous in 'goldrich', 19 heterozygous in 'valenciano', seg ...200212582518
genetic diversity in apricot revealed by aflp markers: species and cultivar comparisons.the genetic diversity of apricot ( prunus armeniaca; 2n = 16) was studied using aflp markers. forty seven apricot cultivars were selected from the following geographic regions: europe, north america, north africa, turkey, iran and china. five ecori- msei aflp primer combinations revealed 416 legible bands, of which 379 were polymorphic markers. a similarity matrix was prepared using the simple matching coefficient of similarity. a upgma dendrogram demonstrated a gradient of decreasing genetic di ...200212582532
development of microsatellite markers in peach [ prunus persica (l.) batsch] and their use in genetic diversity analysis in peach and sweet cherry ( prunus avium l.).we report the sequence of 41 primer pairs of microsatellites from a ct-enriched genomic library of the peach cultivar 'merrill o'henry'. ten microsatellite-containing clones had sequences similar to plant coding sequences in databases and could be used as markers for known functions. for microsatellites segregating at least in one of the two prunus f(2) progenies analyzed, it was possible to demonstrate mendelian inheritance. microsatellite polymorphism was evaluated in 27 peach and 21 sweet che ...200212582570
the great wall of china: a physical barrier to gene flow?one population from each of six plant species along both sides of the juyong-guan great wall, together with one population from each of five species along both sides of a path on a mountain top near juyong-guan, were selected to study the effect of the great wall as a barrier on genetic differentiation between two subpopulations using rapd markers. significant genetic differentiation was found between the subpopulations on both sides of the great wall. a wind-pollinated woody species, ulmus pumi ...200312634804
an apricot (prunus armeniaca l.) f2 progeny linkage map based on ssr and aflp markers, mapping plum pox virus resistance and self-incompatibility traits.a genetic linkage map of apricot ( prunus armeniaca l.) was constructed using aflp and ssr markers. the map is based on an f(2) population (76 individuals) derived from self-pollination of an f(1) individual ('lito') originated from a cross between 'stark early orange' and 'tyrinthos'. this family, designated as 'lito' x 'lito', segregated for two important agronomical traits: plum pox virus resistance (ppv) and self-incompatibility. a total of 211 markers (180 aflps, 29 ssrs and two agronomic t ...200312845439
a new azoxyalkene from a strain of an actinomadura-like fungus.a new proximal alpha,beta-( cis)-unsaturated azoxyalkene (1) was produced by a fungal strain named a7, identified as actinomadura sp., isolated from apricot (prunus armeniaca) roots. compound 1 was isolated together with the polyene macrolide fungichromine, and its structure and geometry were established mainly by uv, ms and 1h- and 13c-nmr mono-dimensional and two-dimensional experiments. compound 1 showed a weak antibiotic activity against rhodotorula sp.200312865985
native and introduced host plants of anastrepha fraterculus and ceratitis capitata (diptera: tephritidae) in northwestern argentina.wild or commercially grown, native and exotic fruit were collected in 30 localities in the tucumán province (nw argentina) from january 1990 to december 1995 to determine their status as hosts of anastrepha fraterculus (wiedemann) and/or ceratitis capitata (wiedemann), the only two fruit fly species of economic and quarantine importance in argentina. a total of 84,094 fruit (3,466.1 kg) representing 33 species (7 native and 26 exotic) in 15 plant families were sampled. we determined the followin ...200314503581
the plant invertase inhibitor shares structural properties and disulfide bridges arrangement with the pectin methylesterase inhibitor.attempts to purify the inhibitor of pectin methylesterase (pmei) from the soluble extract of ripe apricot (prunus armeniaca) fruit led to isolation of a protein (pa-inh) similar to pmei, but having invertase inhibitory activity against vacuolar invertase from tomato. the molecular charge, the native and sds-page molecular weights were similar to those of pmei. partial amino acid sequence indicated a high level of identity with invertase inhibitors and a significant identity with pmei. circular d ...200313678300
construction and application of a bacterial artificial chromosome (bac) library of prunus armeniaca l. for the identification of clones linked to the self-incompatibility locus.to facilitate gene discovery in the rosaceae, a bacterial artificial chromosome (bac) library was constructed using high-molecular-weight (hmw) dna from apricot leaves (prunus armeniaca l.). the library contains 101,376 clones (264, 384-well plates) with an average insert size of 64 kb, equivalent to 22-fold genome coverage. in the first application of this library, high-density filters were screened for self-incompatibility genes using apricot dna probes. eight positive bac clones were detected ...200312836013
consistency of polyphenol oxidase (ppo) thermostability in ripening apricots (prunus armeniaca l.): evidence for the presence of thermostable ppo forming and destabilizing mechanisms in apricots.destabilization of thermostable polyphenol oxidase (ts-ppo) during the ripening of peaches has been previously shown (yemenicioğlu, a.; cemeroğlu, b. tr. j. agric. for. 1998, 22, 261-265). this work studied the effect of ripening on thermal stability of apricot ppo for three different cultivars. kabaaşi cultivar contained thermolabile ppo, whereas ts-ppo appeared in hacihaliloğlu and cataloğlu cultivars. the ts-ppo showed biphasic inactivation curves, and its d and z values between 60 and 90 deg ...200312670183
development and transferability of apricot and grape est microsatellite markers across taxa.est microsatellite markers were developed in apricot (prunus armeniaca l.) and grape (vitis vinifera l.). cdna libraries from either apricot leaves or grape roots were used in an enrichment procedure for ga and ca repeats. the transferability of est simple sequence repeat (ssr) markers from apricot and grapevine to other related and unrelated species was examined. overall, grape primers amplified products in most of the vitaceae accessions while the apricot primers amplified polymorphic alleles ...200312647067
simple sequence repeat (ssr) analysis for assessment of genetic variability in apricot germplasm.thirty ssr primer combinations, developed from peach ssr-enriched genomic libraries and bac libraries of peach [ prunus persica (l.) batsch.], were tested for cross amplification with 74 apricot ( prunus armeniaca l.) germplasm accessions. twelve primer pairs amplified 14 polymorphic ssr loci useful for discriminating most apricot cultivars, as well as for investigating patterns of variation in apricot germplasm. levels of polymorphism were higher than the levels described using other codominant ...200312589543
analysis of the s-locus structure in prunus armeniaca l. identification of s-haplotype specific s-rnase and f-box genes.the gametophytic self-incompatibility (gsi) system in rosaceae has been proposed to be controlled by two genes located in the s -locusan s-rnase and a recently described pollen expressed s -haplotype specific f-box gene (sfb). however, in apricot (prunus armeniaca l.) these genes had not been identified yet. we have sequenced 21 kb in total of the s -locus region in 3 different apricot s -haplotypes. these fragments contain genes homologous to the s-rnase and f-box genes found in other prunus sp ...200415604734
genetic linkage maps of two apricot cultivars ( prunus armeniaca l.) compared with the almond texas x peach earlygold reference map for prunus.several genetic linkage maps have been published in recent years on different prunus species suggesting a high level of resemblance among the genomes of these species. one of these maps (joobeur et al., theor appl genet 97:1034-1041 [(1998); aranzana et al., theor appl genet 106:819-825 (2002b)] constructed from interspecific almond texas x peach earlygold f(2) progeny (txe) was considered to be saturated. we selected 142 f(1) apricot hybrids obtained from a cross between p. armeniaca cvs. polon ...200415067399
identification of genes expressed in response to phytoplasma infection in leaves of prunus armeniaca by messenger rna differential display.the messenger rna (mrna) differential display technique was applied to the identification and isolation of genes whose transcription was altered in leaves of prunus armeniaca infected by european stone fruit yellows (esfy) phytoplasma belonging to ribosomal subgroup 16srx-b. four genes whose steady-state levels of expression significantly changed in response to phytoplasma infection were isolated and identified. the results obtained show that two group of genes are affected by phytoplasma infect ...200415145051
armeniacae semen extract suppresses lipopolysaccharide-induced expressions of cyclooxygenase [correction of cycloosygenase]-2 and inducible nitric oxide synthase in mouse bv2 microglial cells.armeniacae semen is the seed of prunus armeniaca l. var. ansu maxim which is classified into rosaceae. in traditional oriental medicine, armeniacae semen has been used for the treatment of pain and inflammatory diseases. in this study, the effect of armeniacae semen extract on lipopolysaccharide-induced inflammation was investigated using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (mtt) assay, reverse transcription-polymerase chain reaction (rt-pcr), western blot, prostaglandin ...200515744067
application of gfp-tagged plum pox virus to study prunus-ppv interactions at the whole plant and cellular levels.the sharka disease caused by the potyvirus plum pox virus (ppv) is one of the most serious viral diseases affecting stone fruit trees. the study of ppv/prunus interaction under greenhouse controlled conditions is space, time, labor consuming. while the ppv/prunus interactions are now quite well known at the whole plant level, few data however are available on the interactions between the virus and the prunus host plants at the cellular level. using a green fluorescent protein (gfp)-tagged m type ...200515993953
influence of selected fruit tree pollen on life history of euseius stipulatus (acari: phytoseiidae).euseius stipulatus (athias-henriot) is a predatory mite widespread in the mediterranean region considered to be important for the biological control of spider mites in citrus orchards. development, survival and reproduction of this phytoseiid mite feeding on seven commercially obtained pollen were studied under constant laboratory conditions (20 +/- 1 degrees c, rh 65 +/- 5%, photoperiod 16l: 8d h). mites were kept individually at rearing units with ample quantity of almond (prunus amygdalus bat ...200516082919
characterization and quantitation of phenolic compounds in new apricot (prunus armeniaca l.) varieties.thirty-seven apricot varieties, including four new releases (rojo pasión, murciana, selene, and dorada) obtained from different crosses between apricot varieties and three traditional spanish cultivars (currot, mauricio, and búlida), were separated according to flesh color into four groups: white, yellow, light orange, and orange (mean hue angles in flesh were 88.1, 85.0, 77.6, and 72.4, respectively). four phenolic compound groups, procyanidins, hydroxycinnamic acid derivatives, flavonols, and ...200516302775
identification of self-incompatibility genotypes of apricot (prunus armeniaca l.) by s-allele-specific pcr analysis.a cdna of 417 bp encoding an s-rnase gene, named pa s3, was isolated from apricot, prunus aremeniaca. nine s-alleles, s1-s9, were recognized by s-allele-specific pcr and confirmed by southern blot analysis using pa s3 as probe. the s-genotypes of the six cultivars were determined and the results of self- and cross-pollination tests among the six cultivars were consistent with the predicted s-haplotypes by pcr analysis.200516158265
inhibition of zeaxanthin epoxidase activity by cadmium ions in higher plants.the effect of cadmium and zinc ions on violaxanthin cycle enzymes, violaxanthin de-epoxidase and zeaxanthin epoxidase, has been investigated on selected plant species, as well as in vitro. about 50% inhibition of zeaxanthin epoxidase by cadmium ions was found for duckweed (lemna trisulca) and tomato (lycopersicon esculentum) leaves but for apricot (prunus armeniaca) leaves no cadmium inhibition of the epoxidation reaction was observed. the cadmium inhibition of zeaxanthin epoxidase in tomato was ...200516146651
carotenoids from new apricot (prunus armeniaca l.) varieties and their relationship with flesh and skin color.thirty-seven apricot varieties, including four new releases (rojo pasión, murciana, selene, and dorada) obtained from different crosses between apricot varieties and three traditional spanish cultivars (currot, mauricio, and búlida), were separated according to flesh color into four groups. the l*, a*, b*, hue angle, and chroma color measurements on the skin and flesh as well as other quality indices including flesh firmness, soluble solids, titratable acidity, and ph were plotted against the to ...200516076120
authenticity assessment of gamma- and delta-decalactone from prunus fruits by gas chromatography combustion/pyrolysis isotope ratio mass spectrometry (gc-c/p-irms).authenticity assessment of gamma-decalactone (1) and delta-decalactone (2) from peach (prunus persica var. persica), apricot (prunus armeniaca), and nectarine (prunus persica var. nectarina) was performed using gas chromatography-isotope ratio mass spectrometry (gc-irms) in the combustion (c) and pyrolysis (p) mode. in addition, commercially available synthetic (nature-identical) 1 and 2 as well as biotechnologically produced samples (declared to be "natural") were characterized by their delta(2 ...200515969525
ethylene regulation of carotenoid accumulation and carotenogenic gene expression in colour-contrasted apricot varieties (prunus armeniaca).in order to elucidate the regulation mechanisms of carotenoid biosynthesis in apricot fruit (prunus armeniaca), carotenoid content and carotenogenic gene expression were analysed as a function of ethylene production in two colour-contrasted apricot varieties. fruits from goldrich (go) were orange, while moniqui (mo) fruits were white. biochemical analysis showed that go accumulated precursors of the uncoloured carotenoids, phytoene and phytofluene, and the coloured carotenoid, beta-carotene, whi ...200515911563
characterization and mapping of nbs-lrr resistance gene analogs in apricot (prunus armeniaca l.).genomic dna sequences sharing homology with the nbs-lrr (nucleotide binding site-leucine-rich repeat) resistance genes were isolated and cloned from apricot (prunus armeniaca l.) using a pcr approach with degenerate primers designed from conserved regions of the nbs domain. restriction digestion and sequence analyses of the amplified fragments led to the identification of 43 unique amino acid sequences grouped into six families of resistance gene analogs (rgas). all of the rgas identified belong ...200515714329
proteome comparison following self- and across-pollination in self-incompatible apricot (prunus armeniaca l.).the study compared the protein differences between self- and across-pollinated self-incompatible (si) apricots by two-dimensional gel electrophoresis and liquid chromatography-electrospray ion trap tandem mass spectrometry, the results showed that nine protein spots were expressed in self-pollinated pistil and only one was expressed in cross-pollinated pistils. sixteen and three protein spots were up- and down-regulated in cross-pollinated pistils, respectively, compared with self-pollinated pis ...200616947077
self-compatibility of two apricot selections is associated with two pollen-part mutations of different nature.loss of pollen-s function in prunus self-compatible mutants has recently been associated with deletions or insertions in s-haplotype-specific f-box (sfb) genes. we have studied two self-compatible cultivars of apricot (prunus armeniaca), currot (s(c)s(c)) and canino (s(2)s(c)), sharing the naturally occurring self-compatible (s(c))-haplotype. sequence analysis showed that whereas the s(c)-rnase is unaltered, a 358-bp insertion is found in the sfb(c) gene, resulting in the expression of a truncat ...200616920873
detection and transcript expression of s-rnase gene associated with self-incompatibility in apricot (prunus armeniaca l.).the identity and expression of s-rnase genotypes in the self-compatible (sc) apricot cultivar 'katy' and the self-incompatible (si) cultivar 'xinshiji' were examined. we used allele specific polymerase chain reaction (as-pcr) and designated the alleles in 'katy' and 'xinshiji' as s(8)sc and s(9)s(10), respectively. the s-rnase gene was expressed in style at the balloon stage in both genotypes. using real-time fluorescence quantification rt-pcr technology (fqrt-pcr), spatio-temporal expression pa ...200616850191
plum pox virus induces differential gene expression in the partially resistant stone fruit tree prunus armeniaca cv. goldrich.we investigated the changes in the expression profiles of the partially resistant apricot (prunus armeniaca l.) cultivar goldrich following inoculation with plum pox virus (ppv) using cdna-amplification fragment length polymorphism (aflp). altered expression patterns were detected and twenty-one differentially expressed cdna had homologies with genes in databases coding for proteins involved in metabolism, signal transduction, defense, stress and intra/intercellular connections. seven of the mod ...200616564142
[determination of glycyrrhizic acid in different decoctions of sanaotang by hplc and comparison with antifugal effects in vitro].to investigate the contents of glycyrrhizic acid in hejian decoction (mixed the traditional chinese herbs together, then boiling them with water) and the fenjian decoction (boiling the single traditional chinese herb with water separately, then mixed the abstracts) of sanaotang (composed of ephedra sinica, prunus armeniaca and glycyrrhiza uralensis) and to compare with their anti-bacterial activities in vitro.200717672335
population genetic structure in apricot (prunus armeniaca l.) cultivars revealed by fluorescent-aflp markers in southern xinjiang, china.population-wide genetic structure was studied using fluorescent-aflp markers on 85 apricot (prunus armeniaca l.) cultivars collected from kuche, kashi, hetian in the tarim basin, southern xinjiang uygur autonomous region of china. the purpose of this study was to determine the genetic structure and genotypic diversity among the different eco-geographical populations. based on the results from this study, 8 pairs of fluorescent-aflp primers showed clear electrophoregram and high polymorphism amon ...200718037141
flavonoid glycosides from prunus armeniaca and the antibacterial activity of a crude extract.investigations on the chemical constituents of the fruits of prunus armeniaca have led to the isolation of two new flavonoid glycosides, 4',5,7-trihydroxy flavone-7-o-[beta-d-mannopyranosyl (1'''-->2")]-beta-d-allopyranoside (1) and 3,4',5,7-tetrahydroxy-3',5'-di-methoxy flavone 3-o-[alpha-l-rhamnopyranosyl (1'''-->6")]-beta-d-galactopyranoside (2), from the butanolic fraction of the fruits. the butanolic extract exhibited antibacterial activity against both gram positive and gram negative bacte ...200717879744
origin and dissemination of the pollen-part mutated sc haplotype which confers self-compatibility in apricot (prunus armeniaca).in china, its centre of origin, apricot (prunus armeniaca) is self-incompatible. however, most european cultivars are self-compatible. in most cases, self-compatibility is a result of a loss-of-function mutation within the pollen gene (sfb) in the sc haplotype. controlled pollinations performed in this work revealed that the cross 'ceglédi óriás' (s8s9)x'ceglédi arany' (scs9) set well, as expected, but the reciprocal cross did not. apricot s8, s9 and sc haplotypes were analysed using a multileve ...200717850250
characterization of the key aroma compounds in apricots (prunus armeniaca) by application of the molecular sensory science concept.an aroma extract dilution analysis applied on an aroma distillate prepared from fresh apricots revealed (r)-gamma-decalactone, (e)-beta-damascenone, delta-decalactone, and (r/s)-linalool with the highest flavor dilution (fd) factors among the 26 odor-active compounds identified. on the basis of quantitative measurements performed by application of stable isotope dilution assays, followed by a calculation of odor activity values (oavs), beta-ionone, (z)-1,5-octadien-3-one, gamma-decalactone, (e,z ...200717530862
structural studies of a new acidic polysaccharide of apricot seeds.this article reports the isolation and structural investigation of an acidic polysaccharide of the seeds of prunus armeniaca (apricot) - a plant of commercial importance. the polysaccharide is composed of three sugars - mannose (50%), glucose (37.5%) and glucuronic acid (12.5%). the results of methylation analysis, partial depolymerisation, smith degradation and nmr spectroscopic studies indicate a branched structure consisting of a straight chain of mainly alpha-(1 --> 3)mannan, which is inters ...200717497423
postharvest changes in physicochemical properties and volatile constituents of apricot (prunus armeniaca l.). characterization of 28 cultivars.to investigate the changes in physicochemical properties and volatile constituents in apricot during postharvest ripening, the volatile compounds of 28 apricot cultivars were investigated by means of liquid-liquid microextraction (llme), gc-fid, and gc-ms. fruits picked at their optimal harvestable stage of maturity were analyzed at harvest and after ripening at 20 degrees c under controlled conditions. soluble solids (ss), titratable acidity (ta), levels of sugars (saccharose, fructose, and glu ...200717373818
residue levels and storage responses of nectarines, apricots, and peaches after dip treatments with fludioxonil fungicide mixtures.mature apricots (prunus armeniaca), nectarines [prunus persica var. nectarine (ait.)], and peaches [p. persica (l.) batsch.] were subjected to a 2 min dip treatment with warm water at 48 degrees c or with fludioxonil (flu) at 100 mg l-1 and 20 degrees c or at 25 mg l-1 flu and 48 degrees c and then stored at 5 degrees c and 90-95% relative humidity (rh) for 1 week plus 1 additional week at 18 degrees c and approximately 80% rh. fruit residue uptake was determined as a function of fungicide conce ...200717263481
agrobacterium-mediated transformation of apricot (prunus armeniaca l.) leaf explants.a protocol for agrobacterium-mediated stable transformation for scored, whole leaf explants of the apricot (prunus armeniaca) cultivar helena was developed. regenerated shoots were selected using a two-step increased concentrations of paromomycin sulphate. different factors affecting survival of transformed buds, including possible toxicity of green fluorescent protein (gfp) and time of exposure to high cytokine concentration in the regeneration medium, were examined. transformation efficiency, ...200818449544
application of reflectance colorimeter measurements and infrared spectroscopy methods to rapid and nondestructive evaluation of carotenoids content in apricot (prunus armeniaca l.).the importance of carotenoid content in apricot (prunus armeniaca l.) is recognized not only because of the color that they impart but also because of their protective activity against human diseases. current methods to assess carotenoid content are time-consuming, expensive, and destructive. in this work, the application of rapid and nondestructive methods such as colorimeter measurements and infrared spectroscopy has been evaluated for carotenoid determination in apricot. forty apricot genotyp ...200818557619
antinociceptive effect of amygdalin isolated from prunus armeniaca on formalin-induced pain in rats.amygdalin is a plant glucoside isolated from the stones of rosaceous fruits, such as apricots, peaches, almond, cherries, and plums. to investigate the pain-relieving activity of amygdalin, we induced pain in rats through intraplantar injection of formalin, and evaluated the antinociceptive effect of amygdalin at doses of 0.1, 0.5, 1.0, and 10.0 mg/kg-body weight by observing nociceptive behavior such as licking, biting and shaking, the number of fos-immunoreactive neurons in the spinal cord, an ...200818670089
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 ...200820467488
differentiation in seed hoarding among three sympatric rodent species in a warm temperate forest.although seed hoarding by rodents has been extensively studied, differentiation in seed-hoarding behaviors among sympatric rodent species has not been well investigated. using semi-natural enclosures, we demonstrated that three sympatric rodent species showed clear differentiation in food selection, scatter versus larder hoarding behaviors and eating behaviors when offered seeds of four plant species from a warm temperate forest in northern china. the large field mouse apodemus peninsulae prefer ...200821396061
differential induction of phenylalanine ammonia-lyase gene expression in response to in vitro callus unions of prunus spp.phenylalanine ammonia-lyase (pal) is a key enzyme in the synthesis of phenolic compounds, which play a prominent role in graft union formation, including the marked effects of their accumulation in incompatibility response. the purpose of this study was to assess changes in the abundance of pal mrna during graft union development. partial cdna clones encoding the enzyme were isolated from in vitro callus tissue in the apricot (prunus armeniaca l.) cultivar moniqui and the plum rootstock marianna ...200817910896
hplc-dad-ms(n) characterisation of carotenoids from apricots and pumpkins for the evaluation of fruit product authenticity.carotenoids including carotenoid esters from six apricot (prunus armeniaca l.) cultivars and from eight cultivars from three pumpkin species (cucurbita maxima duch., cucurbita pepo l., and cucurbita moschata duch.) were extracted without saponification, separated on a c-30 reversed-phase column and characterised by high-performance liquid chromatography/atmospheric pressure chemical ionisation-mass spectrometry (lc-ms). the predominant free carotenoids were quantified by hplc with diode array de ...200826049248
noncovalent immobilization of pectinesterase (prunus armeniaca l.) onto bentonite.in this work, pectinesterase isolated from malatya apricot was immobilized onto acid-treated bentonite surface by simple adsorption at ph 9.0. the properties of free and immobilized enzyme were defined. the effect of various factors such as ph, temperature, heat, and storage stability on immobilized enzyme were investigated. optimum ph and temperature were determined to be 9.0 and 50 degrees c, respectively. kinetic parameters of the immobilized enzyme (km and vmax values) were also determined a ...200819058058
physical characters and antioxidant, sugar, and mineral nutrient contents in fruit from 29 apricot (prunus armeniaca l.) cultivars and hybrids.fruit physical and chemical characters of 29 apricot cultivars of greek and american origin and their hybrids were evaluated using correlation and principal component analysis. a remarkable variation was observed in the total phenol content (0.3-7.4 mg gallic acid equivalent g(-1) fw) and total antioxidant capacity (0.026-1.858 mg ascorbic acid equivalent g(-1) fw), with the american origin cultivars robada and nja(2) and the new cultivar nike exhibiting the greatest values. the cultivar tomcot ...200818975966
purification and biochemical characteristics of pectinesterase from malatya apricot (prunus armeniaca l.).pectinesterase (pe) in malatya apricot pulp (prunus armeniaca l.) was extracted and purified through (nh(4))(2)so(4) precipitation, dialysis, and deae-sephadex gel filtration chromatography. the samples obtained from the dialysis procedure, named partially purified enzyme, were used for characterization of the apricot pectinesterase. the effect of various factors such as ph, temperature, heat, and storage stability on the partially purified apricot pe enzyme was investigated. optimum ph value wa ...200818800299
the prunus self-incompatibility locus (s locus) is seldom rearranged.self-incompatibility enables flowering plants to discriminate between self- and non-selfpollen. in prunus, the 2 genes determining specificity are the s-rnase (the female determinant that is a glycoprotein with ribonuclease activity) and the sfb (the male determinant, a protein with an f-box motif). in all prunus s haplotypes characterized so far, with the exception of prunus armeniaca s(2) haplotype, the 2 genes have opposite transcription orientations. nevertheless, the relative transcription ...200818703538
[effects of low temperature and weak light on the functions of photosystem in prunus armeniaca l. leaves in solar greenhouse].in this paper, the net photosynthetic rate (pn), actual photochemical efficiency of ps ii (phipsii), photochemical quenching (qp), and maximal photochemical efficiency of ps ii in light (fv'/fm') of apricot (prunus armeniaca) leaves in solar greenhouse were measured, and the effects of low temperature (7 degrees c) and weak light (200 micromol x m(-2) x s(-1) pfd) on the photoinhibition of ps i and ps ii were investigated. the results showed that the optimal temperature for the photosynthesis of ...200818533518
primary molecular features of self-incompatible and self-compatible f(1) seedling from apricot (prunus armeniaca l.) katy x xinshiji.expression of the s-rnase genes in the self-compatible (sc) apricot (prunus armeniaca l.) cultivar katy, the self-incompatible (si) cultivar xinshiji and their f(1) seedling was examined in this study. three s-genotypes, s(9)sc (sc, self-compatibility s-gene absent from the style), s(8)s(9), and s(8)s(10), were obtained. seedlings with s-rnase that migrated as a single band in gel electrophoresis were sc, despite high transcript abundance, and those with s-rnase that migrated as two bands were s ...200917987401
genetic linkage mapping for molecular dissection of chilling requirement and budbreak in apricot (prunus armeniaca l.).commercial production of apricot is severely affected by sensitivity to climatic conditions, an adaptive feature essential for cycling between vegetative or floral growth and dormancy. yield losses are due to late winter or early spring frosts and inhibited vegetative or floral growth caused by unfulfilled chilling requirement (cr). two apricot cultivars, perfection and a.1740, were selected for high and low cr, respectively, to develop a mapping population of f1 individuals using a two-way pseu ...200919935906
correspondence of issr and rapd markers for comparative analysis of genetic diversity among different apricot genotypes from cold arid deserts of trans-himalayas.the phylogenetic relationships of 36 locally grown prunus armeniaca genotypes which are collected from nine sampling sites from two valleys viz. nubra (9,600 ft) and leh (11,500 ft) of trans-himalayan region were analyzed using 31 pcr markers (20 rapds and 11 issrs). this is the first report of molecular genetic diversity studies in apricot from this region of the world. rapd analysis yielded 139 fragments, of which 136 were polymorphic, with an average of 6.8 polymorphic fragments per primer. i ...200923572932
differential expression levels of aroma-related genes during ripening of apricot (prunus armeniaca l.).fruit aroma is a complex trait, particularly in terms of the number of different biosynthetic pathways involved, the complexity of the final metabolites, and their regulation. in order to understand the underlying biochemical processes involved in apricot aroma, four cdnas (pa-aat, eu784138; pa-adheu395433; pa-pdceu395434; and pa-loxeu439430) encoding an alcohol acyl transferase (aat), alcohol dehydrogenase (adh), pyruvate decarboxylase (pdc), and lipoxygenase (lox), respectively, were isolated ...200919233665
Refresh
firstprev
123
nextlast
Displaying items 1 - 100 of 217