seed trait-mediated selection by rodents affects mutualistic interactions and seedling recruitment of co-occurring tree mutualists, seed dispersers may significantly affect mutualistic interactions and seedling recruitment of sympatric plants that share similar seed dispersers, but studies are rare. here, we compared seed dispersal fitness in two co-occurring plant species (armeniaca sibirica and amygdalus davidiana) that inhabit warm temperate deciduous forest in northern china. we tested the hypothesis that seed trait-mediated selection by rodents may influence mutualistic interactions with rodents and then ...201626546082
effects of nitrogen addition on nitrogen resorption in temperate shrublands in northern china.nutrient resorption from senescing leaves is a key mechanism of nutrient conservation for plants. the nutrient resorption efficiency is highly dependent on leaf nutrient status, species identity and soil nutrient availability. nitrogen is a limiting nutrient in most ecosystems, it is widely reported that nitrogen resorption efficiency (nre) was highly dependent on the soil nitrogen availability and vary with n deposition. the effects of nitrogen deposition on nre and nitrogen concentration in gr ...201526086737
effects of thinning on scatter-hoarding by rodents in temperate forest.deforestation and thinning are human activities that can destabilize the forest ecological system and, consequently, impact significantly on habitat and behavior of forest-dwelling animals. this hypothesis was tested in yugong in the mount taihangshan area by comparing the tracks of tagged seeds of armeniaca sibirica. in sites of unthinned and thinned forests. our results showed that: (i) the diversity of vegetation and rodents drastically reduced in sites with thinned forests, compared to unthi ...201626748486
arbuscular mycorrhizal fungi enhance soil carbon sequestration in the coalfields, northwest china.carbon storage is affected by photosynthesis (pn) and soil respiration (rs), which have been studied extensively in natural and agricultural systems. however, the effects of pn and rs on carbon storages in the presence of arbuscular mycorrhizal fungi (amf) in coalfields remain unclear. a field experiment was established in 2014 in shendong coal mining subsidence area. the treatments comprised two inoculation levels (inoculated with or without 100 g amf inoculums per seedlings) and four plant spe ...201627748365
tracing the source of sedimentary organic carbon in the loess plateau of china: an integrated elemental ratio, stable carbon signatures, and radioactive isotopes approach.soil erosion, which will induce the redistribution of soil and associated soil organic carbon (soc) on the earth's surface, is of critically importance for biogeochemical cycling of essential elements and terrestrial carbon sequestration. despite the importance of soil erosion, surprisingly few studies have evaluated the sources of eroded carbon (c). this study used natural abundance levels of the stable isotope signature (13c) and radioactive isotopes (137cs and 210pbex), along with elements ra ...201727843064
antioxidant phenolic acids from the leaves of armeniaca sibirica.phytochemical investigation of the leaves of armeniaca sibirica (l.) lam. led to the isolation of two new phenolic acids (1-2), together with eight known compounds (3-10) from the ethanol extracts of this plant. structures of these compounds were elucidated through detailed spectroscopic analyses, using 1d-nmr and 2d-nmr in combination with hr-ei-ms techniques. all the compounds were evaluated for their antioxidant capabilities in vitro using 2, 2'-azino-bis-3-ethylbenzothiazoline-6-sulphonic ac ...201728891305
purification and structural characterization of an α-glucosidase inhibitory polysaccharide from apricot (armeniaca sibirica l. lam.) this study, the crude polysaccharide (apps) from the fruiting bodies of apricot (armeniaca sibirica l. lam.) was isolated and fractionated by ultrafiltration and sephadex g-75 gel chromatography. the hypoglycemic activities of all fractions were determined by α-glucosidase inhibitory activity in vitro. the fraction apps1-2 showed the best activity with an ic50 of 6.06 mg/ml. the properties and chemical compositions of this fraction were analyzed with high-performance liquid chromatography, ge ...201525659703
[co2 response process and its simulation of prunus sibirica photosynthesis under different soil moisture conditions].taking the two-year old potted prunus sibirica seedlings as test materials, and using ciras-2 photosynthetic system, this paper studied the co2 response process of p. sibirica photosynthesis in semi-arid loess hilly region under eight soil moisture conditions. the co2 response data of p. sibirica were fitted and analyzed by rectangular hyperbola model, exponential equation, and modified rectangular hyperbola model. meanwhile, the quantitative relationships between the photosynthesis and the soil ...201324066534
development and characterization of microsatellite markers in prunus sibirica (rosaceae). 201325202522
high-level genetic diversity and complex population structure of siberian apricot (prunus sibirica l.) in china as revealed by nuclear ssr markers.siberian apricot (prunus sibirica l.), an ecologically and economically important tree species with a high degree of tolerance to a variety of extreme environmental conditions, is widely distributed across the mountains of northeastern and northern china, eastern and southeastern regions of mongolia, eastern siberia, and the maritime territory of russia. however, few studies have examined the genetic diversity and population structure of this species. using 31 nuclear microsatellites, we investi ...201424516551
biodiesel from siberian apricot (prunus sibirica l.) seed kernel this paper, siberian apricot (prunus sibirica l.) seed kernel oil was investigated for the first time as a promising non-conventional feedstock for preparation of biodiesel. siberian apricot seed kernel has high oil content (50.18 ± 3.92%), and the oil has low acid value (0.46 mg g(-1)) and low water content (0.17%). the fatty acid composition of the siberian apricot seed kernel oil includes a high percentage of oleic acid (65.23 ± 4.97%) and linoleic acid (28.92 ± 4.62%). the measured fuel p ...201222440572
genetic diversity and population structure of siberian apricot (prunus sibirica l.) in china.the genetic diversity and population genetic structure of 252 accessions from 21 prunus sibirica l. populations were investigated using 10 issr, ssr, and srap markers. the results suggest that the entire population has a relatively high level of genetic diversity, with populations hr and my showing very high diversity. a low level of inter-population genetic differentiation and a high level of intra-population genetic differentiation was found, which is supported by a moderate level of gene flow ...201324384840
transcriptomic analysis revealed the mechanism of oil dynamic accumulation during developing siberian apricot (prunus sibirica l.) seed kernels for the development of woody biodiesel.siberian apricot (prunus sibirica l.) has emerged as a novel potential source of biodiesel in china, but the molecular regulatory mechanism of oil accumulation in siberian apricot seed kernels (sask) is still unknown at present. to better develop sask oil as woody biodiesel, it is essential to profile transcriptome and to identify the full repertoire of potential unigenes involved in the formation and accumulation of oil sask during the different developing stages.201525834637
integrated mrna and mirna transcriptome reveal a cross-talk between developing response and hormone signaling for the seed kernels of siberian apricot.recently, our transcriptomic analysis has identified some functional genes responsible for oil biosynthesis in developing sask, yet mirna-mediated regulation for sask development and oil accumulation is poorly understood. here, 3 representative periods of 10, 30 and 60 daf were selected for srna sequencing based on the dynamic patterns of growth tendency and oil content of developing sask. by mirna transcriptomic analysis, we characterized 296 known and 44 novel mirnas in developing sask, among ...201627762296
phylogeography study of the siberian apricot (prunus sibirica l.) in northern china assessed by chloroplast microsatellite and dna makers.there is evidence that a band of dry climate separated plants in east asia into distinct northern and southern groups. however, few studies have focused on the arid belt in this region, especially with regard to plants. we analyzed genetic variation in 22 populations of siberian apricot (prunus sibirica l.), a temperate deciduous species distributed in this arid belt, using two chloroplast dna (cpdna) sequences, seven chloroplast microsatellite loci (cpssrs), and 31 nuclear microsatellite loci ( ...201729209348
identification of auxin response factor gene family from prunus sibirica and its expression analysis during mesocarp and kernel development.auxin response factors (arfs) in auxin signaling pathway are an important component that can regulate the transcription of auxin-responsive genes involved in almost all aspects of plant growth and development. to our knowledge, the comprehensive and systematic characterization of arf genes has never been reported in prunus sibirica, a novel woody biodiesel feedstock in china.201829368590
de novo transcriptome analysis of the siberian apricot (prunus sibirica l.) and search for potential ssr markers by 454 pyrosequencing.the siberian apricot, an economically and ecologically important plant in china, contains seeds high in oil and can grow on marginal land. although this species has multiple purposes and may be a feedstock of biofuel in china, transcriptome information and molecular research on this species remain limited. rna-seq technology has been widely applied to transcriptomics, genomics and the development of molecular markers, and functional gene studies. in this study, we obtained 1,243,067 high-quality ...201424746601
selection of reference genes for gene expression studies in siberian apricot (prunus sibirica l.) germplasm using quantitative real-time pcr.quantitative real time reverse transcription polymerase chain reaction has been applied in a vast range of studies of gene expression analysis. however, real-time pcr data must be normalized with one or more reference genes. in this study, eleven putative consistently expressed genes (act, tua, tub, cyp, dnaj, elfa, f-box27, rpl12, gapdh, ubc and ubq) in nine siberian apricot germplasms (including much variability) were evaluated for their potential as references for the normalization of gene ex ...201425105495
a comparative analysis of characteristic floral scent compounds in prunus mume and related order to investigate the difference in their characteristic floral scents between prunus mume siebold & zucc. and the related prunus species, their headspace volatiles and endogenous extraction were analyzed by gas chromatography-mass spectrometry. the efficiency of substrate utilization of the flowers was studied by incubating them with different alcohol substrates. our results indicated that benzyl acetate is a dominant compound influencing the characteristic floral scent of p. mume. an alc ...201425273130
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