Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
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| toxicity of combined chromium(vi) and phenanthrene pollution on the seed germination, stem lengths, and fresh weights of higher plants. | studies of the interaction and toxicity of pollutant combinations such as heavy metals and pahs are of practical importance in the remediation and monitoring of the industrial soil environment. this study investigated the single and combined toxicity of chromium(vi) and phenanthrene on three important higher plants: mung beans (phaseolus aureus), pakchoi cabbage (brassica chinensis), and rice (oryza sativa). in experiments using artificial soil matrix, the ec10 and ec20 of the two pollutants, al ... | 2016 | 27098980 |
| light intensity affects the uptake and metabolism of glycine by pakchoi (brassica chinensis l.). | the uptake of glycine by pakchoi (brassica chinensis l.), when supplied as single n-source or in a mixture of glycine and inorganic n, was studied at different light intensities under sterile conditions. at the optimal intensity (414 μmol m(-2) s(-1)) for plant growth, glycine, nitrate, and ammonium contributed 29.4%, 39.5%, and 31.1% shoot n, respectively, and light intensity altered the preferential absorption of n sources. the lower (15)n-nitrate in root but higher in shoot and the higher (15 ... | 2016 | 26882864 |
| effects of aging on the fraction distribution and bioavailability of selenium in three different soils. | aging refers to the processes by which the mobility and bioavailability of metals in soil decline with time. although long-term aging is a key process that needs to be considered in risk assessment of metals, few investigations has been attempted to determine whether and how residence time influences the selenium (se) fractions and bioavailability in soil. in this study, the fractions of se in soils was evaluated, and bioavailability were assessed by measuring se concentration in pak choi (brass ... | 2016 | 26606190 |
| sulfur decreases cadmium translocation and enhances cadmium tolerance by promoting sulfur assimilation and glutathione metabolism in brassica chinensis l. | we investigated the ameliorative role of sulfur (s) in protecting plants against cadmium (cd) toxicity by using two pakchoi (brassica chinensis l.) cultivars with different cd tolerance levels. the exposure of pakchoi seedlings to 100μm cd inhibited plant growth, increased superoxide content, enhanced membrane lipid peroxidation, and induced cd accumulation in the roots and shoots. application of s to cd-stressed plants alleviated cd-induced oxidative stress by promoting the capacity of the asco ... | 2016 | 26513528 |
| biochar reduces the bioavailability of di-(2-ethylhexyl) phthalate in soil. | a pot experiment was conducted to evaluate the effect of biochars on the bioavailability of di-(2-ethylhexyl) phthalate (dehp) in two soils using brassica chinensis l. as an indicator plant. the residual concentrations of dehp tended to be higher in the biochar-amended soils than in the control soils. they were lower (p<0.05) in the high organic carbon content soil (hoc; 2.2%c) than in the low organic carbon content soil (loc; 0.35%c). the dehp concentrations in plant shoots grown in the hoc soi ... | 2016 | 26037111 |
| attempts to improve nitrogen utilization efficiency of aquaponics through nitrifies addition and filler gradation. | aquaponics has attracted worldwide attention in recent years and is considered as an alternative technology for conventional aquaculture. in this study, common carp (cyprinus carpio) and pakchoi (brassica chinensis) were cultured in lab-scale aquaponics, and attempts were conducted to enhance its nitrogen utilization efficiency (nue) through two optimization methods, i.e., nitrifies addition (na) and filler gradation (fg). results showed that na and fg could improve the nue of aquaponics by 8.8 ... | 2016 | 26645232 |
| plant growth, antibiotic uptake, and prevalence of antibiotic resistance in an endophytic system of pakchoi under antibiotic exposure. | antibiotic contamination in agroecosystems may cause serious problems, such as the proliferation of various antibiotic resistant bacteria and the spreading of antibiotic resistance genes (args) in the environment or even to human beings. however, it is unclear whether environmental antibiotics, antibiotic resistant bacteria, and args can directly enter into, or occur in, the endophytic systems of plants exposed to pollutants. in this study, a hydroponic experiment exposing pakchoi (brassica chin ... | 2017 | 29099753 |
| elevated co2 levels enhance the uptake and metabolism of organic nitrogen. | the effects of elevated co2 (eco2 ) on the relative uptake of inorganic and organic nitrogen (n) are unclear. the uptake of different n sources by pak choi (brassica chinensis l.) seedlings supplied with a mixture of nitrate, glycine and ammonium was studied using 15 n-labelling under ambient co2 (aco2 ) (350 ppm) or eco2 (650 ppm) conditions. 15 n-labelled short-term uptake and 15 n-gas chromatography mass spectrometry (gc-ms) were applied to measure the effects of eco2 on glycine uptake and me ... | 2017 | 29080266 |
| comparison of dgt with traditional methods for assessing cadmium bioavailability to brassica chinensis in different soils. | there is no universally accepted method for evaluating cadmium (cd) bioavailability in soil. the diffusive gradient in thin films (dgt) technique is a promising tool, but there is considerable debate about its suitability. the ability of this technique to estimate cd bioavailability in soils was compared with the abilities of other traditional chemical extraction techniques (soil solution, ethylene diamine tetraacetic acid (edta), acetic acid (hac), calcium chloride (cacl2), and pseudo-total cd ... | 2017 | 29079727 |
| sulfur protects pakchoi (brassica chinensis l.) seedlings against cadmium stress by regulating ascorbate-glutathione metabolism. | cadmium (cd) pollution in food chains pose a potential health risk for humans. sulfur (s) is a significant macronutrient that plays a significant role in the regulation of plant responses to diverse biotic and abiotic stresses. however, no information is currently available about the impact of s application on ascorbate-glutathione metabolism (asa-gsh cycle) of pakchoi plants under cd stress. the two previously identified genotypes, namely, aikangqing (a cd-tolerant cultivar) and qibaoqing (a cd ... | 2017 | 28933771 |
| development of est-ssr markers in flowering chinese cabbage (brassica campestris l. ssp. chinensis var. utilis tsen et lee) based on de novo transcriptomic assemblies. | flowering chinese cabbage is one of the most important vegetable crops in southern china. genetic improvement of various agronomic traits in this crop is underway to meet high market demand in the region, but the progress is hampered by limited number of molecular markers available in this crop. this study aimed to develop est-ssr markers from transcriptome sequences generated by next-generation sequencing. rna-seq of eight cabbage samples identified 48,975 unigenes. of these unigenes, 23,267 we ... | 2017 | 28902884 |
| bioaccessibility and human exposure assessment of cadmium and arsenic in pakchoi genotypes grown in co-contaminated soils. | in many countries cadmium (cd) and arsenic (as) commonly coexist in soils contaminated by mining activities, and can easily enter the human body via consumption of leafy vegetables, like the popularly consumed pakchoi (brassica chinensis l.), causing major health concerns. in the present study, bioaccessibility and human exposure of cd and as were assessed in twenty genotypes of pakchoi cultured at two different levels of co-contamination to identify low health risk genotypes. the bioaccessibili ... | 2017 | 28850097 |
| the influence of particle size and feedstock of biochar on the accumulation of cd, zn, pb, and as by brassica chinensis l. | biochar produced from rice straw (rc) and maize stalk (mc) was amended to the heavy metal-contaminated soil to investigate the effects of different biochar feedstock and particle size (fine, moderate, coarse) on the accumulation of cd, zn, pb, and as in brassica chinensis l. (chinese cabbage). the concentrations of cd, zn, and pb in shoot were decreased by up to 57, 75, and 63%, respectively, after biochar addition (4%). only mc decreased as concentration in b. chinensis l. shoots by up to 61%. ... | 2017 | 28801768 |
| isolation and characterization of a phosphorus-solubilizing bacterium from rhizosphere soils and its colonization of chinese cabbage (brassica campestris ssp. chinensis). | phosphate-solubilizing bacteria (psb) can promote the dissolution of insoluble phosphorus (p) in soil, enhancing the availability of soluble p. thus, their application can reduce the consumption of fertilizer and aid in sustainable agricultural development. from the rhizosphere of chinese cabbage plants grown in yangling, we isolated a strain of psb (yl6) with a strong ability to dissolve p and showed that this strain promoted the growth of these plants under field conditions. however, systemati ... | 2017 | 28798725 |
| abscisic acid treatment alleviates cadmium toxicity in purple flowering stalk (brassica campestris l. ssp. chinensis var. purpurea hort.) seedlings. | the aim of this research was to investigate how exogenous abscisic acid (aba) alleviates cadmium (cd) toxicity in purple flowering stalk (brassica campestris l. ssp. chinensis) and evaluate whether it could be a potential choice for phytoremediation. purple flowering stalk seedlings were cultivated in a hydroponic system with cd at various concentrations (0-100 μmol l-1) as controls and cd plus aba as the treatment in the growth media. the soluble proteins, chlorophyll contents and the activity ... | 2017 | 28755629 |
| improvement of pig manure compost lignocellulose degradation, organic matter humification and compost quality with medical stone. | the present study aimed to investigate the effect of different concentrations (0%, 2.5%, 5.0%, 7.5% and 10.0%) of medical stone (ms) on the lignocellulose degradation and organic matter humification during pig manure (pm) composting. the results indicated that the addition of ms drastically promoted the organic carbon and lignin degradation. compared to the control, the decomposition rate of hemicellulose and cellulose was increased by 9.64-27.08% and 2.11-12.07% in ms added treatments. meanwhil ... | 2017 | 28711806 |
| field crops (ipomoea aquatica forsk. and brassica chinensis l.) for phytoremediation of cadmium and nitrate co-contaminated soils via rotation with sedum alfredii hance. | phytoremediation coupled with crop rotation (pcc) is a feasible strategy for remediation of contaminated soil without interrupting crop production. the objective of this study was to develop a pcc technology system for greenhouse fields co-contaminated with cd and nitrate using hyperaccumulator sedum alfredii. in this system, endophytic bacterium m002 inoculation, co2 fertilization, and fermentation residue were continuously applied to improve the growth of s. alfredii, and low-accumulator ipomo ... | 2017 | 28669090 |
| pulsed light-emitting diodes for a higher phytochemical level in microgreens. | a novel research of pulsed light-emitting diode (led) lighting versus continuous lighting was conducted by analyzing phytochemical levels in microgreens. red pak choi (brassica rapa var. chinensis), mustard (brassica juncea l.), and tatsoi (brassica rapa var. rosularis) were grown indoors under hps lamps supplemented with monochromatic (455, 470, 505, 590, and 627 nm) leds [total photosynthetic photon flux density (ppfd) of 200 ± 10 μmol m-2 s-1, for 16 h day-1]. for pulsed light treatments, the ... | 2017 | 28618783 |
| effect of calcium bentonite on zn and cu mobility and their accumulation in vegetable growth in soil amended with compost during consecutive planting. | in this study, greenhouse pot experiment was carried out to investigate the cu and zn mobility and their accumulations in pakchoi (brassica chinensis l.) and chinese cabbage (brassica rapachinensis l.) growth in ca-bentonite-pig manure co-compost (cbc)-soil system during three consecutive planting. five composts (0, 2.5, 5, 7.5, and 10% ca-bentonite-pig manure co-composts) amended soil with 5% (w/w) application rate and compared to control without any additive. the results showed that the additi ... | 2017 | 28523619 |
| elevation of secondary metabolites synthesis in brassica campestris ssp. chinensis l. via exogenous inoculation of piriformospora indica with appropriate fertilizer. | this work evaluated the impact of exogenous soil inoculation of beneficial fungal strain piriformospora indica on phytochemical changes and the related genes expression of chinese cabbage (brassica campestris ssp. chinensis l.) by greenhouse pot experiments. high performance liquid chromatography (hplc) affirmed that among the different combinations of fungal and organic fertilizer treatments, the phenolic acids and flavonoids were considerably enriched in organic fertilizer and fungi (op) follo ... | 2017 | 28493970 |
| transcriptomic profiling of two pak choi varieties with contrasting anthocyanin contents provides an insight into structural and regulatory genes in anthocyanin biosynthetic pathway. | the accumulation of anthocyanin in horticultural crops not only improves their stress tolerances but also their nutritional values. many key regulatory and structural genes in anthocyanin biosynthesis have been identified in model plants, but limited information is available for non-model plant species featured with colored leaves. in this study, two pak choi varieties with green or purple leaves were selected to analyze the anthocyanin biosynthesis through rna-seq. | 2017 | 28399809 |
| hexavalent chromium stress enhances the uptake of nitrate but reduces the uptake of ammonium and glycine in pak choi (brassica chinensis l.). | chromium (cr) pollution affects plant growth and biochemical processes, so, the relative uptake of glycine, nitrate, and ammonium by pak choi (brassica chinensis) seedlings in treatments with 0mgl-1 and 10mgl-1 cr (vi) were detected by substrate-specific 15n-labelling in a sterile environment. the short-term uptake of 15n-labelled sources and 15n-enriched amino acids were detected by gas chromatography mass spectrometry to explore the mechanism by which cr stress affects glycine uptake and metab ... | 2017 | 28189780 |
| transcriptomic analysis of pak choi under acute ozone exposure revealed regulatory mechanism against ozone stress. | ground-level ozone (o3) is one of the major air pollutants, which cause oxidative injury to plants. the physiological and biochemical mechanisms underlying the responses of plants to o3 stress have been well investigated. however, there are limited reports about the molecular basis of plant responses to o3. in this study, a comparative transcriptomic analysis of pak choi (brassica campestris ssp. chinensis) exposed to different o3 concentrations was conducted for the first time. | 2017 | 29216819 |
| identification and fine mapping of a stay-green gene (brnye1) in pakchoi (brassica campestris l. ssp. chinensis). | using bulked segregant analysis combined with next-generation sequencing, we delimited the brnye1 gene responsible for the stay-green trait of nye in pakchoi. sequence analysis identified bra019346 as the candidate gene. "stay-green" refers to a plant trait whereby leaves remain green during senescence. this trait is useful in the cultivation of pakchoi (brassica campestris l. ssp. chinensis), which is marketed as a green leaf product. this study aimed to identify the gene responsible for the st ... | 2017 | 29209732 |
| subcellular distribution and biotransformation of phenanthrene in pakchoi after inoculation with endophytic pseudomonas sp. as probed using hrms coupled with isotope-labeling. | contamination of food-crops with polycyclic aromatic hydrocarbons (pahs) poses a grave concern to food safety, especially when pahs are internalized. we have demonstrated in our previous study that inoculation of crop with a phenanthrene-degrading endophytic pseudomonas sp. ph6-gfp could overcome this problem. here, the subcellular distribution and biotransformation mechanism of phenanthrene in pakchoi (brassica chinensis l.) seedlings with inoculation of ph6-gfp were further investigated both i ... | 2017 | 29150254 |
| over-expression of mir158 causes pollen abortion in brassica campestris ssp. chinensis. | we identified and cloned the two precursors of mir158 and its target gene in brassica campestris ssp. chinensis, which both had high relative expression in the inflorescences. further study revealed that over-expression of mir158 caused reduced pollen varbility, which was caused by the degradation of pollen contents from the binucleate microspore stage. these results first suggest the role of mir158 in pollen development of brassica campestris ssp. chinensis. micrornas (mirnas) play crucial role ... | 2017 | 27909970 |
| effects of an iron-silicon material, a synthetic zeolite and an alkaline clay on vegetable uptake of as and cd from a polluted agricultural soil and proposed remediation mechanisms. | economic and highly effective methods of in situ remediation of cd and as polluted farmland in mining areas are urgently needed. pot experiments with brassica chinensis l. were carried out to determine the effects of three soil amendments [a novel iron-silicon material (ism), a synthetic zeolite (sz) and an alkaline clay (ac)] on vegetable uptake of as and cd. sem-eds and xrd analyses were used to investigate the remediation mechanisms involved. amendment with ism significantly reduced the conce ... | 2017 | 27530933 |
| effects of split applications of nitrogen fertilizers on the cd level and nutritional quality of chinese cabbage. | cadmium (cd) contamination in soil is an increasingly serious problem. management of plant nutrients has been proposed as a potentially promising strategy for minimizing cd accumulation in crops grown in contaminated soil. this study investigated the effects of split applications of nitrogen (n) fertilizers on the cd concentration in chinese cabbage (brassica chinensis l.) plants grown in cd-contaminated soil. compared with single applications, split applications of ammonium or urea resulted in ... | 2017 | 28990380 |
| [results of salad machine experiment within the mars-500 project]. | the salad machine experiment was aimed to fulfill performance testing of a prototype of space conveyor-type cylindrical greenhouse phytocycle-sl, to study growth and development of plants, and to evaluate microbial contamination of equipment in the closed manned environment. crops of leaf cabbage brassica chinensis l., cultivar vesnianka were raised in the time interval between mars-500 days 417 and 515. the greenhouse proved it serviceability demanding 17 min/(man x d) in the normal mode. most ... | 2017 | 23405423 |
| characterization of bcmf23a and bcmf23b, two putative pectin methylesterase genes related to pollen development in brassica campestris ssp. chinensis. | two homologous genes, brassica campestris male fertility 23a (bcmf23a) and brassica campestris male fertility 23b (bcmf23b), encoding putative pectin methylesterases (pmes) were isolated from brassica campestris ssp. chinensis (syn. brassica rapa ssp. chinensis). these two genes sharing high sequence identity with each other were highly expressed in the fertile flower buds but silenced in the sterile ones of genic male sterile line system ('bcajh97-01a/b'). results of rt-pcr and in situ hybridiz ... | 2017 | 27844189 |
| [methods of bio-engineering destruction of root residues in application to a space vitamin greenhouse with ionite artificial soil]. | regeneration of ionite artificial soil (as) in root modules (rm) of conveyor-type space greenhouses should be proceeded by removal of root residues without disruption of the as capillary-porous structure. the proposed method consists of two stages of root residues destruction. on the first stage, as treatment by 0.7% an alkali water solution with added 0.7% hydrogen peroxide over 3.5 hours in a thermal-insulation container at 95 +/- 4 degrees c reduces root residue mass up to 60%. specific energ ... | 2017 | 23116044 |
| comparing the influence of selenite (se4+) and selenate (se6+) on the inhibition of the mercury (hg) phytotoxicity to pak choi. | selenite (se (iv)) and selenate (se (iv)) have recently been demonstrated to be equally effective in inhibiting mercury (hg) phytotoxicity to plants. this assertion is still unclear. in this study, we aimed to explore the potential effects of se species (se4+ and se6+) on the inhibition of the mercury (hg) bioavailability to pak choi in dry land. pot experiments with exposure to different dosages of mercuric chloride (hgcl2) and selenite (na2seo3) or selenate (na2seo4) were treated. to compare t ... | 2018 | 28968942 |
| effects of biochar on phytotoxicity and translocation of polybrominated diphenyl ethers in ni/fe bimetallic nanoparticle-treated soil. | in this study, soil culture experiments were conducted to explore the effects of biochar-supported ni/fe nanoparticles on the accumulation and translocation of polybrominated diphenyl ethers (pbdes) in soil-plant system and its phytotoxicity to brassica chinensis. compared with those in bde209 contaminated soils (s 1) and ni/fe nanoparticle-treated soil (s 3), the plant biomass, root, and shoot lengths in biochar-supported ni/fe nanoparticle-treated soil (s 4) were increased by 23 mg, 1.35 cm, a ... | 2018 | 29128943 |
| dynamics of multiple elements in fast decomposing vegetable residues. | litter decomposition regulates the cycling of nutrients and toxicants but is poorly studied in farmlands. to understand the unavoidable in-situ decomposition process, we quantified the dynamics of c, h, n, as, ca, cd, cr, cu, fe, hg, k, mg, mn, na, ni, pb, and zn during a 180-d decomposition study in leafy lettuce (lactuca sativa var. longifoliaf) and rape (brassica chinensis) residues in a wastewater-irrigated farmland in northwestern china. different from most studied natural ecosystems, the m ... | 2018 | 29100695 |
| comparison of dgt with traditional extraction methods for assessing arsenic bioavailability to brassica chinensis in different soils. | several predictive models and methods have been used for heavy metals bioavailability, but there is no universally accepted approach in evaluating the bioavailability of arsenic (as) in soil. the technique of diffusive gradients in thin-films (dgt) is a promising tool, but there is a considerable debate with respect to its suitability. the dgt method was compared with other traditional chemical extractions techniques (soil solution, nahco3, nh4cl, hcl, and total as method) for estimating as bioa ... | 2018 | 29032263 |