Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| tritium levels in chinese cabbage and radish plants acutely exposed to hto vapor at different growth stages. | to simulate an acute exposure of chinese cabbage and radish plants to airborne hto, the potted plants were exposed to hto vapor under semi-outdoor conditions for 1h at different times from the early to late growth stages. the plants were grown outdoors and the plant tritium was measured at the end of an exposure (h(0)) and at harvest. the leaf tissue free water tritium (tfwt) concentrations at h(0) were considerably lower than estimated equilibrium concentrations. in the leaves of chinese cabbag ... | 2005 | 15936121 |
| effects of sewage sludge compost application on crops and cropland in a 3-year field study. | composted sewage sludge can be applied to cropland to supply nutrients and improve soil physical properties. however, farmers are much concerned about heavy metal accumulation in cropland and heavy metal availability for crops. a 3-year field study was carried out in this study to investigate the effects of sewage sludge compost (ssc) application on the heavy metal accumulation in cropland soil, rapeseed germination and plumelet development, and yields of barley and chinese cabbage, compared wit ... | 2005 | 15857637 |
| [simulation of plutella xylostella population control by granulosis virus]. | by means of the life table of acting factors combinations and the theory of modern population system control, this paper evaluated the efficacy of different combinations of application dosage and times of granulosis virus on plutella xylostella control. the results showed that with gradually recovered natural enemies, the second generation of plutella xylostella in the field of spring flowering chinese cabbage would increase 4.1 times if no control methods were carried out to the first generatio ... | 2005 | 15852972 |
| methomyl residue on chinese cabbage grown under greenhouse conditions. | 2006 | 17123010 | |
| [toxic effects of monosodium glutamate wastewater on crop seed germination and root elongation]. | to make a comprehensive assessment on monosodium glutamate wastewater pollution, a pollution exposure experiment was carried out on the seed germination and root elongation of wheat, chinese cabbage and tomato by using the wastewater discharged from different processing phases of monosodium glutamate production. the results showed that there were significantly positive linear relationships between the inhibition rates of wheat seed germination and root elongation and the cod(cr) of mother liquor ... | 2006 | 17044508 |
| tube-immunoassay for rapid detection of carbaryl residues in agricultural products. | an antibody-based rapid, quantitative, and qualitative tube enzyme-linked immunosorbent assay (tube-elisa) was developed and used to determine carbaryl (1-naphthyl methylcarbamate) residues in agricultural products (apple, chinese cabbage, rice, and barley). the tube-elisa is a competitive immunoassay in which the antibody is coated in the polystyrene tube, with a dynamic range between 0.7 and 46.3 microg kg(-1). carbaryl was extracted from each agricultural sample by hand-shaking with methanol ... | 2006 | 16785176 |
| [evaluation on environmental quality of pb, zn and cu contents in vegetable plantation soils and vegetables in hangzhou suburb]. | contents of heavy metals (pb, zn, cu) in soils from 4 main vegetable plantations in hangzhou suburb were investigated to evaluate environmental quality of heavy metals of soils and vegetables. different evaluation methods and evaluation standards of heavy metals were used for comparison. kriging method was applied to study the spatial variability of heavy metals in soil-vegetable system. the distribution maps of the spatial variability of heavy metals in soil-vegetable system in jianggan distric ... | 2006 | 16767999 |
| phytotoxic effects of copper on nitrogen metabolism and plant growth in brassica pekinensis rupr. | copper (cu) from various anthropogenic and natural sources is one of the major heavy metal contaminants in the environment. to study cu-induced nitrogen (n) metabolism damage in the popular vegetable chinese cabbage (brassica pekinensis rupr.), aquatic culture experiments with this plant were performed. two cu levels (0.3 micromol/l (control) and 10.3 micromol/l) and two n levels (0.05- and 1-fold hoagland's solution) were used for the aquatic culture experiments. the results demonstrated advers ... | 2006 | 16616956 |
| experience induces a phytophagous insect to lay eggs on a nonhost plant. | experience of nonhost plants by phytophagous insects may alter their foraging and oviposition responses to these plants. using the diamondback moth (dbm) plutella xylostella (l.), its host-plant chinese cabbage, and a nonhost-plant pisum sativum (pea) as a model system, we examined whether experience of the nonhost plant by adults can induce oviposition on the nonhost plant. naive dbm females did not accept pea for oviposition in either no-choice or choice conditions, whereas females with prior ... | 2006 | 16586034 |
| lead toxicity in brassica pekinensis rupr.: effect on nitrate assimilation and growth. | lead is a major heavy-metal contaminant in the environment that has various anthropogenic and natural sources. to study the phytotoxic effects of pb on the popular vegetable chinese cabbage (brassica pekinensis rupr.) via depression of nitrogen assimilation, pot culture experiments with three concentrations of treatment with pb (0, 4, and 8 mmol/kg dry soil) were carried out. our results demonstrated adverse effects of pb on nitrogen assimilation and plant growth. the addition of pb in the soil ... | 2006 | 16528690 |
| determination of pyrethroid pesticide residues in vegetables by pressurized capillary electrochromatography. | a simple and rapid pressurized isocratic capillary electrochromatography (pcec) method has been developed to separate six pyrethroid pesticides. the effects of ph of buffer, organic solvent content, buffer concentrations and applied voltage on the separation of six pyrethroids were investigated. under the optimized conditions, the pcec method developed allows baseline separation of a complex mixture of six pyrethroids in <20 min. the method is applied to the analysis of these pesticide residues ... | 2006 | 18970538 |
| [rna fingerprinting of the differential expression fragments related to cytoplasmic male sterility in chinese cabbage]. | in order to investigate the differential expression of the genes related to cytoplasmic male sterility in chinese cabbage (brassica campestris l. ssp. penkinsis), a modified rna fingerprinting technique was developed to compare the difference in the total rna from flower bud of chinese cabbage among cytoplasmic male sterility (cms) lines, maintainer lines and f1 hybrids. four stably differential fragments s47-412, s93-622, s176-343 and s199-904 were amplified, cloned and sequenced with primers s ... | 2006 | 17035188 |
| [atpase distribution in fertile and sterile anther of a genic male sterile chinese cabbage]. | lead precipitation technique was used to locate adenosine triphosphatase (atpase) in the fertile and sterile anthers of a genic male sterile chinese cabbage (brassica campestris l. ssp. chinensis makino var. communis tsen et lee),which would help us to understand the relationship between atpase and sterility of anthers of the cabbage. at megaspore mother cell (mmc) of fertile anther many atpase reactive precipitates were located in nucleus but few of the precipitates in cytoplasm of the cell. me ... | 2006 | 16955789 |
| non-host plant extracts reduce oviposition of plutella xylostella (lepidoptera: plutellidae) and enhance parasitism by its parasitoid cotesia plutellae (hymenoptera: braconidae). | botanical preparations, usually from non-host plants, can be used to manipulate the behaviour of insect pests and their natural enemies. in this study, the effects of extracts of chrysanthemum morifolium, a non-host plant of the diamondback moth, plutella xylostella (linnaeus), on the olfactory and oviposition responses of this phytophagous insect and on levels of parasitism by its specialist parasitoid cotesia plutellae (kurdjumov) were examined, using chinese cabbage brassica campestris l. ssp ... | 2006 | 16923205 |
| dynamics of pesticide residues in the autumn chinese cabbage (brassica chinensis l.) grown in open fields. | residues of the pesticides chlorpyrifos, dimethoate, cyhalothrin, cypermethrin, fenvalerate, deltamethrin and chlorothalonil in the autumn chinese cabbage (brassica chinensis l.) were studied using gas chromatography. the results indicated that the residues were dependent on the frequency and rate of pesticide application and on the weather conditions immediately following spraying. when the chinese cabbages were treated once at normal rates, the half-lives of the seven pesticides in the vegetab ... | 2006 | 16506147 |
| extractability and bioavailability of zinc over time in three tropical soils incubated with biosolids. | phytotoxicity of heavy metal is the primary concern in applying biosolids (sewage sludge) to agricultural land. this study evaluates the changes in chemical speciation of zn in three tropical soils of taiwan measured with sequential extraction over a one-year period. biosolids were applied to the soils at application rates of 10, 50 and 100 mg ha(-1), and correlated diethylene triamine pentaacetic acid (dtpa) and sequential extraction as extract for prediction of zn bioavailability to chinese ca ... | 2006 | 16213570 |
| effect of bone char application on pb bioavailability in a pb-contaminated soil. | the effects of bone char (bc) application on the bioavailability of pb in a polluted soil from hunan province, china were examined. the pb-contaminated soil was treated with two types of bone char, one from the uk and the other from china. the bioavailability of pb was determined in terms of the uptake by chinese cabbage (brassica chinensis l.), sequential extraction and x-ray diffraction analysis. the results indicate that the pb concentrations in both shoots and roots decreased with increasing ... | 2006 | 16095783 |
| functional analysis of a novel male fertility cyp86mf gene in chinese cabbage (brassica campestris l. ssp. chinensis makino). | in our earlier work, a cytochrome p450 cyp86mf gene was isolated from floral bud of chinese cabbage (brassica campestris l. ssp. chinensis makino, syn. b. rapa l.) by mrna differential display pcr (dd-pcr) and rapid amplification of cdna ends (race). to unravel the biological function of cyp86mf gene, the antisense fragment from the cyp86mf gene was transferred into chinese cabbage pak-choi (b. campestris ssp. chinensis var. communis tsen et lee). out of 22 plants transformed with the antisense ... | 2006 | 16075226 |
| copper and lead levels in two popular leafy vegetables grown around morogoro municipality, tanzania. | a study was carried out to determine the levels of two heavy metals, lead (pb) and copper (cu), in two popular leafy vegetables grown around morogoro municipality in tanzania. vegetable samples of pumpkin leaves (cucurbita moschata) and chinese cabbage (brassica chinensis) were collected from three sites and analysed for their concentrations of the two metals using an atomic absorption spectrophotometer. the three sites, namely mazimbu, kihonda and towelo are located within a 10 km perimeter. th ... | 2006 | 17058799 |
| molecular cloning and stress-dependent regulation of potassium channel gene in chinese cabbage (brassica rapa ssp. pekinensis). | potassium channels are important for many physiological functions in plants, one of which is to regulate plant adaption to stress conditions. in this study, kct2, the gene encoding a membrane-bound protein potassium channel (genbank accession number: ), was isolated from chinese cabbage (brassica rapa ssp. pekinensis) by race-pcr technique. bioinformatics methods were performed for the gene structure and molecular similarity analysis. the kct2 expression patterns under various stress conditions ... | 2006 | 16949960 |
| gene conversion from slg to srk resulting in self-compatibility in brassica rapa. | self-compatible s-54 homozygotic plants were found in progenies of an f(1) hybrid cultivar in chinese cabbage. pollination tests revealed that this self-compatibility is controlled by the s locus and caused by the loss of the recognition function of the stigma. srk, the gene for the recognition molecule in the stigma, was normally transcribed and translated in the self-compatible plants. the 1034-bp region in the receptor domain of srk in the self-compatible plants was 100% identical to slg in s ... | 2006 | 16376883 |
| fine mapping of the clubroot resistance gene, crr3, in brassica rapa. | a linkage map of chinese cabbage (brassica rapa) was constructed to localize the clubroot resistance (cr) gene, crr3. quantitative trait loci analysis using an f(3) population revealed a sharp peak in the logarithm of odds score around the sequence-tagged site (sts) marker, opc11-2s. therefore, this region contained crr3. nucleotide sequences of opc11-2s and its proximal markers showed homology to sequences in the top arm of arabidopsis chromosome 3, suggesting a synteny between the two species. ... | 2006 | 17039346 |
| [feeding preference of plutella xylostella (lepidoptera: plutellidae) larva to its hosts]. | the feeding experiment with different sorts of brassica vegetable crops showed that plutella xylostella larva preferred the seedlings of chinese cabbage (brassica campestris l.), radish (raphanus sativus l.) and caixin (brassica campestris l.) to those of rape (brassica napus l.) and cabbage (brassica olereacea l.), with a selection proportion of 93.33% and 6.67% between chinese cabbage and rape, and of 16.67% and 83.33% between cabbage and caixin. on the whole, the feeding preference of p. xylo ... | 2006 | 16964942 |
| a survey of the brassica rapa genome by bac-end sequence analysis and comparison with arabidopsis thaliana. | brassica rapa ssp. pekinensis (chinese cabbage) is an economically important crop and a model plant for studies on polyploidization and phenotypic evolution. to gain an insight into the structure of the b. rapa genome we analyzed 12,017 bac-end sequences for the presence of transposable elements (tes), ssrs, centromeric satellite repeats and genes, and similarity to the closely related genome of arabidopsis thaliana. tes were estimated to occupy 14% of the genome, with 12.3% of the genome repres ... | 2006 | 17202858 |
| cadmium phytotoxicity: quantitative sensitivity relationships between classical endpoints and antioxidative enzyme biomarkers. | in this work, cadmium phytotoxicity and quantitative sensitivity relationships between different hierarchical endpoints in plants cultivated in a contaminated soil were studied. thus, germination rate, biomass growth and antioxidative enzyme activity (i.e. superoxide dismutase, peroxidase, catalase and glutathione reductase) in three terrestrial plants (avena sativa l., brassica campestris l. cv. chinensis, lactuca sativa l. cv. hanson) were analyzed. plant growth tests were carried out accordin ... | 2006 | 15982719 |
| risk assessment for safety of soils and vegetables around a lead/zinc mine. | concentrations of heavy metals (pb, zn, cd, cu) were determined in soils and vegetables (chrysanthemum, spinach and four cultivars of chinese cabbage from the area adjacent to a pb/zn mine in shaoxing, zhejiang province, china, and compared with the chinese national standards for soil environmental quality. the accumulation of heavy metals in cabbage cv. siyuegreen was investigated at different distances from the center of the mine. the vegetable plantation soils were polluted with pb, cd, cu an ... | 2006 | 16528596 |
| [effect of the spaceflight radiation factor on the growth of brassica pekinensis and micromycetes fusarium oxysporum]. | the effects of chronic exposure in the combination of low-dose gamma- and neutron radiation on growth of brassica pekinensis (lour) rupr, var. khibinskaya, and micromycetes of fusarium oxysporum, a representative of soil microflora were stadied. seeds, water and vegetating plants raised from previously irradiated seeds were subjected to radiation exposure. the gamma-neutron dose rate was -0.013 sgy/d and the neutron flux was -20 n/cm2 d. growth of brassica pekinensis and of fusarium oxysporum on ... | 2006 | 16579543 |
| population behavior analysis of dspe and peld regulation in erwinia chrysanthemi 3937. | erwinia chrysanthemi 3937 (ech3937) is a phytopathogenic bacterium with a wide host range. the pectinolytic enzymes secreted by the bacterium and the type iii secretion system (t3ss) are essential for full virulence. we used the green fluorescent protein gene as a reporter to investigate the expression of dspe (a putative t3ss effector) and peld (a major pectin-degrading enzyme) in populations of ech3937 under different conditions. gene expression was analyzed by measuring the fluorescence inten ... | 2006 | 16610748 |
| soil arsenic availability and the transfer of soil arsenic to crops in suburban areas in fujian province, southeast china. | the bioavailability, soil-to-plant transfer and associated health risks of arsenic in soils collected from paddy rice fields and vegetable fields in suburban areas of some major cities of fujian province were investigated. the total soil concentrations of arsenic ranged from 1.29 to 25.28 mg kg(-)(1) with a mean of 6.09 mg kg(-)(1). available (nah(2)po(4)-extractable) arsenic content accounted for 0.7-38.2% of total soil arsenic and was significantly correlated with total soil arsenic content. f ... | 2006 | 16624379 |
| transgenic tobacco plants producing caffeine: a potential new strategy for insect pest control. | caffeine (1,3,7-trimethylxanthine) is one of the most widely used plant secondary metabolites, primarily as a stimulant and an ingredient in drugs. in nature, caffeine is believed to function in chemical defense, acting as an antiherbivory and allelopathic agent, and therefore it might be employed to protect agriculturally important crop plants. in coffee plants, caffeine is synthesized from the precursor xanthosine in four steps, three n-methylations and removal of ribose. we had previously iso ... | 2006 | 17091387 |
| [bcmf4 gene, encoding a leucine-rich repeat protein, plays a role in male fertility in chinese cabbage-pak-choi]. | the bcmf4 (brassica campestris male fertility 4) gene was previously isolated from the fertile b line of chinese cabbage-pak-choi (brassica campestris ssp. chinensis var. communis, syn. b. rapa ssp. chinensis var. communis). in the present paper, based on the cdna sequence of bcmf4, primers were designed and used to amplify two fragments from the cdna of flower buds of chinese cabbage-pak-choi. two produced fragments were introduced separately into binary vector pbi121 in antisense and sense ori ... | 2006 | 17098713 |
| risk assessment of heavy metals in soils and vegetables around non-ferrous metals mining and smelting sites, baiyin, china. | a field survey was conducted to investigate the metal and arsenic contamination in soils and vegetables on four villages (shuichuan (sch), beiwan (bwa), dongwan (dwa) and wufe (wfe)) located along, baiyin, china, and to evaluate the possible health risks to local population through foodchain. results show that the most significantly contaminated soils occurred upstream at sch where cd, cu and as concentrations exceeded maximum allowable concentrations for chinese agricultural soil. further downs ... | 2006 | 17294953 |
| application of toxins from the entomopathogenic bacterium, xenorhabdus nematophila, for the control of insects on foliage. | larvae of the beet armyworm, spodoptera exigua, and the diamondback moth, plutella xylostella, and nymphs of the desert locust, schistocerca gregaria were controlled by the application of either cell suspensions from the bacterium, xenorhabdus nematophila or filtrates containing cell-free toxins. since there was no significant differences between the two treatments it was concluded that toxins produced by the bacterium were responsible for the lethal effects obtained. cells of xenorhabdus nemato ... | 2006 | 17390798 |
| resistance to white rust in pak choi and chinese cabbage at the cotyledon stage. | the biothrofic pathogen albugo candida (pers.) attacks all the cultivated brassica species and several wild crucifers causing the disease known as white rust. the symptoms consist on the initial appearance of more or less conspicuous white sori on the plant leaves and stems, followed by severe distortions of the affected organs, especially flowers and siliqua. on delicate vegetable types of brassica rapa l., like pak choi (b. rapa var. chinensis l.) and chinese cabbages (b. rapa var. pekinensis ... | 2006 | 17390845 |
| increase in brao1 gene expression and aldehyde oxidase activity during clubroot development in chinese cabbage (brassica rapa l.). | summary in clubroot disease, gall formation is induced by infection with the obligate biotroph plasmodiophora brassicae due to increased levels of auxins and cytokinins. because aldehyde oxidase (ao) may be involved in auxin biosynthesis in plants, we isolated two ao genes (brao1 and brao2) from chinese cabbage (brassica rapa ssp. pekinensis cv. muso), which are the most similar to aao1 among arabidopsis ao genes, and examined their expressions during clubroot development. the expression of brao ... | 2006 | 20507442 |
| [analysis of shoot apical anatomic changes during the development of brassica plants]. | in this study, we analyzed shoot apical anatomic changes during the development of brassica plants including cauliflower (brasscia oleracea l.var. botrytis), broccoli (b. oleracea l.var italica), chinese cabbage (brasscia compestris spp. pekinensis) and cabbage (brasscia oleracea.l.). it has been showed that all of their apical meristems changed from the original tunica-corpus structure to the intergrade subarea, to typical 5-subarea structure and to 4-subarea structure when they went into repro ... | 2006 | 16944593 |
| comparative genomics of host-specific virulence in pseudomonas syringae. | while much study has gone into characterizing virulence factors that play a general role in disease, less work has been directed at identifying pathogen factors that act in a host-specific manner. understanding these factors will help reveal the variety of mechanisms used by pathogens to suppress or avoid host defenses. we identified candidate pseudomonas syringae host-specific virulence genes by searching for genes whose distribution among natural p. syringae isolates was statistically associat ... | 2006 | 16951068 |
| successful genetic transformation of chinese cabbage using phosphomannose isomerase as a selection marker. | a mannose selection system was adapted for use in the agrobacterium-mediated transformation of chinese cabbage. this system makes use of the pmi gene that encodes phosphomannose isomerase, which converts mannose-6-phosphate to fructose-6-phosphate. hypocotyl explants from 4-5-day-old seedlings of chinese cabbage inbred lines were pre-cultured for 2-3 days and then infected with agrobacterium. two genes (l: -guluno-gamma-lactone oxidase, gloase, and jasmonic methyl transferase, jmt) were transfor ... | 2007 | 17021847 |
| coprinellus curtus (hitoyo-take) prevents diseases of vegetables caused by pathogenic fungi. | a strain of coprinellus curtus (designated gm-21), a basidiomycete that suppressed bottom-rot disease of chinese cabbage, 'pak-choi' (brassica campestris), caused by the pathogen rhizoctonia solani pak-choi 2 was isolated. the mechanism of plant disease suppression was discovered to be hyphal interference, a combative fungal interaction between strain gm-21 and the pathogen. the antifungal spectrum of strain gm-21 was shown to include r. solani and fusarium sp., i.e. strain gm-21 showed disease- ... | 2007 | 17850327 |
| enhanced tolerance to sulfur dioxide and salt stress of transgenic chinese cabbage plants expressing both superoxide dismutase and catalase in chloroplasts. | to explore the possibility of overcoming the highly phytotoxic effect of so(2) and salt stress, we introduced the maize cu/znsod and/or cat genes into chloroplasts of chinese cabbage (brassica campestris l. ssp. pekinensis cv. tropical pride) (referred to as sod, cat and sod+cat plants). sod+cat plants showed enhanced tolerance to 400 ppb so(2), and visible damage was one-sixth that of wild-type (ck) plants. in addition, when sod+cat plants were exposed to a high salt treatment of 200 mm nacl fo ... | 2007 | 17851086 |
| comparative and functional genomics reveals genetic diversity and determinants of host specificity among reference strains and a large collection of chinese isolates of the phytopathogen xanthomonas campestris pv. campestris. | xanthomonas campestris pathovar campestris (xcc) is the causal agent of black rot disease of crucifers worldwide. the molecular genetic diversity and host specificity of xcc are poorly understood. | 2007 | 17927820 |
| genetic control of broad-spectrum resistance to turnip mosaic virus in brassica rapa (chinese cabbage). | the brassica rapa line rlr22 was resistant to eight diverse turnip mosaic virus (tumv) isolates. a b. rapa genetic map based on 213 marker loci segregating in 120 first back-cross (b(1)) individuals was established and aligned with the b. rapa genome reference map using some of the rflp probes. b(1) individuals were self-pollinated to produce b(1)s(1) families. the existence of two loci controlling resistance to tumv isolate cdn 1 was established from contrasting patterns of segregation for resi ... | 2007 | 17947545 |
| single and joint stress of acetochlor and pb on three agricultural crops in northeast china. | in order to evaluate ecological risk of agrochemicals in agricultural environment, single and joint toxic effects of an important herbicide and a typical heavy metal on root elongation of crops were investigated. seeds of the three crops including wheat (triticum aestivum), chinese cabbage (brassica pekimensis) and soybean (glycine max) as the main crops in northeast china were exposed to acetochlor as a herbicide and lead (pb) as a heavy metal using the pot-culture method, and meadow brown soil ... | 2007 | 17969646 |
| turnip yellow mosaic virus as a chemoaddressable bionanoparticle. | viruses and virus-like particles (vlps) have been demonstrated to be robust scaffolds for the construction of nanomaterials. in order to develop new nanoprobes for time-resolved fluoroimmuno assays as well as to investigate the two-dimensional self-assembly of viruses and vlps, the icosahedral turnip yellow mosaic virus (tymv) was investigated as a potential building block in our study. tymv is an icosahedral plant virus with an average diameter of 28 nm that can be isolated inexpensively in gra ... | 2007 | 17428027 |
| prototype protein assembly as scaffold for time-resolved fluoroimmuno assays. | turnip yellow mosaic virus (tymv) is an icosahedral plant virus with an average diameter of 28 nm and can be isolated in gram quantities from turnip or chinese cabbage inexpensively. in this study, it was selected as a prototype bionanoparticle for time-resolved fluoroimmuno assay (trfia). two types of reactive amino acid residues were employed to anchor luminescent terbium complexes and biotin groups based on orthogonal chemical reactions. while terbium complexes were used as luminescent signal ... | 2007 | 17542581 |
| purification and characterization of an antifungal protein, c-fkbp, from chinese cabbage. | an antifungal protein was isolated from chinese cabbage (brassica campestris l. ssp. pekinensis) by buffer-soluble extraction and two chromatographic procedures. the results of matrix-assisted laser desorption/ionization time-of-flight (maldi-tof) mass spectrometry revealed that the isolated chinese cabbage protein was identical to human fk506-binding protein (fkbp). a cdna encoding fkbp was isolated from a chinese cabbage leaf cdna library and named c-fkbp. the open reading frame of the gene en ... | 2007 | 17550265 |
| dietary risk assessment of spinosad in china. | spinosad is an insect control agent that is derived from a naturally occurring soil bacterium, and is effective on several classes of insects, especially lepidoptera larvae. spinosad consists mainly of a mixture of spinosyns a and d and is registered for uses on a variety of crops in many countries including china. in order to understand the residue behavior of spinosad and to evaluate the dietary risk of spinosad residue in food in china, a number of residue studies were conducted on cotton, ch ... | 2007 | 17628261 |
| a mutualistic symbiosis between a dark septate endophytic fungus, heteroconium chaetospira, and a nonmycorrhizal plant, chinese cabbage. | symbiotic microorganisms, such as mycorrhizal fungi, are known to associate with most plants; however members of the cruciferae are an exception. we investigated nutrient exchange between a dark septate endophytic fungus, heteroconium chaetospira, and chinese cabbage plants (cruciferae) in vitro. chinese cabbage could not use some amino acids, while the fungus-treated plants were able to use all of the nitrogen forms provided. to demonstrate that nitrogen transfer occurs between the fungus and t ... | 2007 | 17682770 |
| decreased toxicity to terrestrial plants associated with a mixture of methyl tert-butyl ether and its metabolite tert-butyl alcohol. | the influence of the main fuel oxygenate methyl tert-butyl ether (mtbe) and its key metabolite, tert-butyl alcohol (tba), on the growth of a plant seedling was studied separately and in combination. the test plants were mung bean (phaseolus radiatus), cucumber (cucumis sativus), wheat (triticum aestivum), sorghum (sorghum bicolor), kale (brassica alboglabra), chinese cabbage (brassica campestris), and sweet corn (zea mays). the growth of all the plants was adversely affected by tba and mtbe. the ... | 2007 | 17702346 |
| some fungal endophytes from vegetable crops and their anti-oomycete activities against tomato late blight. | to isolate endophytic fungi from vegetable plants and examine their in vivo anti-oomycete activity against phytophthora infestans in tomato plants. | 2007 | 17309513 |
| pedobacter suwonensis sp. nov., isolated from the rhizosphere of chinese cabbage (brassica campestris). | a mesophilic bacterium, strain 15-52(t), was isolated from the rhizosphere of chinese cabbage (brassica campestris). on the basis of phenotypic and genotypic characteristics, the bacterium was identified as representing a novel species belonging to the genus pedobacter. the strain is non-flagellated, non-spore-forming and grows at temperatures in the range 1-37 degrees c. physiological tests of the strain showed the presence of oxidase, catalase, protease (gelatin and casein hydrolysis), beta-gl ... | 2007 | 17329772 |
| ecotoxicity of a polycyclic aromatic hydrocarbon (pah)-contaminated soil. | soil samples from a former cokery site polluted with polycyclic aromatic hydrocarbons (pahs) were assessed for their toxicity to terrestrial and aquatic organisms and for their mutagenicity. the total concentration of the 16 pahs listed as priority pollutants by the us environmental protection agency (us-epa) was 2634+/-241 mg/kgdw in soil samples. the toxicity of water-extractable pollutants from the contaminated soil samples was evaluated using acute (vibrio fischeri; microtox test, daphnia ma ... | 2007 | 17382389 |
| identification of quantitative trait loci for resistance to xanthomonas campestris pv. campestris in brassica rapa. | resistance to six known races of black rot in crucifers caused by xanthomonas campestris pv. campestris (pammel) dowson is absent or very rare in brassica oleracea (c genome). however, race specific and broad-spectrum resistance (to type strains of all six races) does appear to occur frequently in other brassica genomes including b. rapa (a genome). here, we report the genetics of broad spectrum resistance in the b. rapa chinese cabbage accession b162, using qtl analysis of resistance to races 1 ... | 2007 | 17160671 |
| molecular and functional characterization of a cyclophilin with antifungal activity from chinese cabbage. | an antifungal protein that inhibits the growth of filamentous fungal pathogens was isolated from chinese cabbage (brassica campestris l. ssp. pekinensis) by affinity chromatography on affi-gel blue gel and ion exchange chromatography on cm-sepharose. the n-terminal amino acid sequence of the protein was highly homologous to that of plant cyclophilins and consequently the protein was denoted as c-cyp. to understand the antifungal activity of c-cyp, we isolated a cdna encoding its gene from a chin ... | 2007 | 17194440 |
| antifungal activity and enhancement of plant growth by bacillus cereus grown on shellfish chitin wastes. | bacillus cereus qq308 produced antifungal hydrolytic enzymes, comprising chitinase, chitosanase and protease, when grown in a medium containing shrimp and crab shell powder (scsp) produced from marine waste. the growth of the plant-pathogenic fungi fusarium oxysporum, fusarium solani, and pythium ultimum were considerably affected by the presence of the qq308 culture supernatant. the supernatant inhibited spore germination and germ tube elongation of f. oxysporum, f. solani, and p. ultimum. the ... | 2007 | 16797180 |
| [changes of oviposition preference of diamondback moth after experiencing a neem-based repellent/deterrent bioact-t]. | for the adults of phytophagous insects, their experience of non-host plant-originated repellent/deterrent may produce habituation or induced preference to it. in this study, the experience-induced changes in oviposition responses of diamondback moth plutelle xylostella l. to a neem-based repellent bioact-t ec508 were examined in laboratory. 2-6 days old female moths were offered with 2--6 times or 2-6 days experience of the repellent, and their ovipostion preference to untreated and bioact-treat ... | 2007 | 17450746 |
| quantitative trait loci for flowering time and morphological traits in multiple populations of brassica rapa. | wide variation for morphological traits exists in brassica rapa and the genetic basis of this morphological variation is largely unknown. here is a report on quantitative trait loci (qtl) analysis of flowering time, seed and pod traits, growth-related traits, leaf morphology, and turnip formation in b. rapa using multiple populations. the populations resulted from crosses between the following accessions: rapid cycling, chinese cabbage, yellow sarson, pak choi, and a japanese vegetable turnip va ... | 2007 | 18048374 |
| genomic distribution of simple sequence repeats in brassica rapa. | simple sequence repeats (ssrs) represent short tandem duplications found within all eukaryotic organisms. to examine the distribution of ssrs in the genome of brassica rapa ssp. pekinensis, ssrs from different genomic regions representing 17.7 mb of genomic sequence were surveyed. ssrs appear more abundant in non-coding regions (86.6%) than in coding regions (13.4%). comparison of ssr densities in different genomic regions demonstrated that ssr density was greatest within the 5'-flanking regions ... | 2007 | 17646709 |
| [molecular cloning and characterization of bcmybogu, a novel member of the myb family involved in ogucms in brassica campestris ssp. chinensis]. | in the attempt to elucidate the molecular mechanism of cms. ogura cytoplasmic male sterile (ogucms) lines were obtained in chinese cabbage after interspecific hybridization between brassica. napus l. ogucms and b. campestris ssp. chinensis followed by recurrent backcross with b. campestris ssp. chinensis as the pollen donor. the cms lines were significantly characterized by the whitish anther and indehiscence of anther. the tapetal hypertrophy with excess vacuola-tion was the first observed defe ... | 2007 | 17548334 |
| antioxidant capacity and phenolic content of selected commercially available cruciferous vegetables. | antioxidant activity, free radical scavenging activity and phenolic content of red cabbage (brassica oleracea var. capitata rubra), chinese cabbage (brassica rapa pekinensis var cylindrica), green cabbage (brassica oleracea var capitata), mustard cabbage (brassica juncea var rugosa) and chinese white cabbage (brassica rapa var chinensis), grown in malaysia, were evaluated. red cabbage had the highest antioxidant activity and phenolic content compared to the other cruciferous vegetables studied ( ... | 2007 | 22692190 |
| [allelopathy of garlic root exudates on different receiver vegetables]. | by the method of tissue culture under sterilized condition, this paper studied the allelopathy of garlic root exudates on lettuce, hot pepper, radish, cucumber, chinese cabbage, and tomato. the results showed that garlic root exudates had no evident effects on the germination rate, germination index, shoot height, and protective enzyme system of test crops, but significantly increased the root length, aboveground fresh mass, and root fresh mass of lettuce, with the ris being +0.163, +0.106, +0.3 ... | 2007 | 17396504 |
| [study on content and intake status of vegetable fiber in rural residents in china]. | to study the distribution and intake of vegetable fiber of chinese rural residents. | 2007 | 18303630 |
| delayed flowering time in arabidopsis and brassica rapa by the overexpression of flowering locus c (flc) homologs isolated from chinese cabbage (brassica rapa l.: ssp. pekinensis). | chinese cabbage plants remain in the vegetative growth phase until they have experienced prolonged exposure to cold temperature, known as vernalization. this inhibition of flowering is caused by the high levels of flowering locus c (flc) expression. to increase the product value of chinese cabbage by inhibiting the floral transition, three genes (brflc1, brflc2, and brflc3) homologous to the atflc gene, which encodes a floral repressor, were isolated from the chinese cabbage 'chiifu'. these gene ... | 2007 | 17024448 |
| the reference genetic linkage map for the multinational brassica rapa genome sequencing project. | we describe the construction of a reference genetic linkage map for the brassica a genome, which will form the backbone for anchoring sequence contigs for the multinational brassica rapa genome sequencing project. seventy-eight doubled haploid lines derived from anther culture of the f(1) of a cross between two diverse chinese cabbage (b. rapa ssp. pekinensis) inbred lines, 'chiifu-401-42' (c) and 'kenshin-402-43' (k) were used to construct the map. the map comprises a total of 556 markers, incl ... | 2007 | 17646962 |
| late-bolting transgenic chinese cabbage obtained by rna interference technique. | leafy (lfy) gene plays an important role in determining plant flowering mainly by controlling the timing of phase transition. constitutive under-expression of lfy in arabidopsis resulted in the formation of a late-flowering and highly branching phenotype. in this paper, an rnai approach was used in down-regulated lfy gene expression to delay chinese cabbage (brassica rapa l. ssp. pekinensis) bolting and flowering. the results show that transgenic plant has a later transition to the reproductive ... | 2007 | 17960044 |
| [genetic model analysis of leaf-weight traits in non-heading chinese cabbage (brassica campestris ssp. chinensis makino)]. | the mixed major-gene plus polygene inheritance model was used to analyze the genetics of leafblade-weight and petiole-weight trait in sixqiu017 of non-heading chinese cabbage. the results showed that the leafblade-weight trait was controlled by one pair of negative complete dominant major genes plus additive-dominant polygene (d-4). the additive effect in the major gene was 1.8991, the dominant effect was -1.8991; the additive effect in the polygene was -1.2934, and the dominant effect was 1.793 ... | 2007 | 17855268 |
| salicylic acid alleviates the cadmium toxicity in chinese cabbages (brassica chinensis). | to test the effects of salicylic acid (sa) on physiological changes of plants under cadmium stress one cultivar of chinese cabbage (brassica chinensis) cadmium resistance, changkenxiaobaicai (tolerance) were studied with pots cultures. like other organisms plants have adaptatives mechanisms whereby they are able to respond to both nutrient deficiency and toxicities. plants materials were originated from the vegetable market in wuhan, hubei china. the seeds were tested on the pot cultures in the ... | 2007 | 19090100 |
| identification of flavonoids and hydroxycinnamic acids in pak choi varieties (brassica campestris l. ssp. chinensis var. communis) by hplc-esi-msn and nmr and their quantification by hplc-dad. | twenty-eight polyphenols (11 flavonoid derivatives and 17 hydroxycinnamic acid derivatives) were detected in different cultivars of the chinese cabbage pak choi ( brassica campestris l. ssp. chinensis var. communis) by hplc-dad-esi-ms(n). kaempferol was found to be the major flavonoid in pak choi, glycosylated and acylated with different compounds. smaller amounts of isorhamnetin were also detected. a structural determination was carried out by (1)h and (13)c nmr spectroscopy for the main compou ... | 2007 | 17848079 |
| effects of soil properties on heavy metal accumulation in flowering chinese cabbage (brassica campestris l. ssp. chinensis var. utilis tsen et lee) in pearl river delta, china. | this study was conducted to investigate the effects of soil properties on the heavy metal accumulation in flowering chinese cabbage (brassica campestris l. ssp. chinensis var. utilis tsen et lee) at the field scale. the concentrations of cadmium (cd), mercury (hg), and chromium (cr) in topsoil and vegetable samples from nanhai district of foshan city in the pearl river delta (prd) were analyzed. the results showed that 56.5% of the soil samples exceeded the grade ii of the chinese soil environme ... | 2007 | 17365337 |
| bcmf11, a putative pollen-specific non-coding rna from brassica campestris ssp. chinensis. | a full-length cdna, bcmf11, has been cloned from chinese cabbage (brassica campestris l. ssp. chinensis makino) using rapid amplification of the cdna ends (race) based on a pollen-specific cdna fragment (dn237921). the bcmf11 cdna has a total length of 828bp with poly (a) tail. analysis of the sequence demonstrated that bcmf11 is a novel non-coding rna which has no prominent open reading frame (orf) or coding capacity. no significant similarities were observed between bcmf11 and previously publi ... | 2007 | 17207554 |
| influence of lead acetate on soil microbial biomass and community structure in two different soils with the growth of chinese cabbage (brassica chinensis). | a greenhouse pot experiment was conducted to evaluate the impact of different concentrations of lead acetate on soil microbial biomass and community structure during growth of chinese cabbage (brassica chinensis) in two different soils. the field soils were used for a small pot, short-term 60-day growth chamber study. the soils were amended with different pb concentrations, ranging from 0 to 900mgkg(-1) soil. the experimental design was a 2 soilx2 vegetation/non-vegetationx6 treatments (pb)x3 re ... | 2007 | 16949632 |
| dietary intake of fruit and vegetable and lung cancer risk: a case-control study in harbin, northeast china. | we studied the relationship between dietary intake of vegetables and fruit and lung cancer risk in harbin, heilongjiang province, northeast china, an area with a very high baseline risk of lung cancer in both sexes. | 2007 | 17060488 |
| [uptake 14co2 from air and accumulation of 14c in chinese cabbage]. | uptake 14co2 from air and accumulation of 14c in the chinese cabbage were studied by using the isotope-tracer techniques in order to get a better understanding of the environmental behavior of 14co. the results show that the 14co2, which was uptaken from the air by the leaf photosynthesis, would be sent to the other part of the chinese cabbage and form a accumulating trend. the specific activity of 14c in every tissue increases linearly with time, and the increasing rate is in the range of 95.3 ... | 2007 | 17926415 |
| dietary habits and risk of ovarian cancer death in a large-scale cohort study (jacc study) in japan. | the japan collaborative cohort (jacc) study was established in 1988-1990 and consisted of 46,465 men and 64,327 women observed until the end of 2003. a self-administered food frequency questionnaire was used as a baseline survey, and associations of dietary habits with the risk of ovarian cancer death were evaluated, taking into consideration age, menstrual and reproductive, anthropometric, and lifestyle factors. during the observation period, 77 women died of ovarian cancer. hazard ratios for d ... | 2007 | 17571946 |
| [effects of weak light on photosynthetic characteristics and chloroplast ultrastructure of non-heading chinese cabbage]. | the study with two varieties of non-heading chinese cabbage shade-tolerant 'aiwang' and shade-sensitive 'lüyou' showed that after shading, the total chlorophyll and chlorophyll b contents of 'aiwang' went up greatly, but the net photosynthetic rate (pn) , light compensation point (lcp), light saturation point (lsp), apparent quantum yield (aqy) and carboxylation efficiency (ce) of both 'aiwang' and 'liiyou' all went down, and the decline of all test parameters except lcp was slighter for 'aiwang ... | 2007 | 17450739 |
| fate of hto following its acute soil deposition at different growth stages of chinese cabbage. | lysimeter experiments were carried out in a greenhouse to study the fate of hto following its soil deposition at different growth stages of chinese cabbage. an hto solution was applied to the surface of an acidic sandy soil at a time before, and four different times after, sowing. the transfer of hto to the plants was quantified with the areal transfer factor (tfa, m2 kg(-1)-fresh) defined as the ratio of the plant concentration at harvest to the areal activity deposition. in the four post-sowin ... | 2007 | 17418920 |
| mechanism of iodine uptake by cabbage: effects of iodine species and where it is stored. | iodine-enhanced vegetable has been proven to be an effective way to reduce iodine deficiency disorders in many regions. however, the knowledge about what mechanisms control plant uptake of iodine and where iodine is stored in plants is still very limited. a series of controlled experiments, including solution culture, pot planting, and field experiments were carried out to investigate the uptake mechanism of iodine in different forms. a new methodology for observing the iodine distribution withi ... | 2008 | 18521548 |
| vapor-phase toxicity of butylbenzyl phthalate to three plant species: white mustard, chinese cabbage, and white clover. | during the manufacture of products containing butylbenzyl phthalate (bbp), low emissions to the air may occur. due to potential exposure of terrestrial communities to bbp vapors, phytotoxicity tests were conducted using chinese cabbage, white mustard, and white clover. no significant effects on shoot growth were observed at the higher bbp vapor-phase concentration tested, which measured 5.7 microg/m(3). the overall practicality of vapor-phase testing of chemicals with very low vapor pressures is ... | 2008 | 18465066 |
| event-specific qualitative and quantitative polymerase chain reaction methods for detection of genetically modified rapeseed ms8xrf3 based on the right border junctions. | ms8xrf3 is a genetically modified rapeseed hybrid which is widely cultivated in canada and exported to some other countries for production of foodstuffs or fodder. in this study, the genomic sequences flanking the right borders of the integrated transgenic sequences in the ms8xrf3 genome were characterized and showed high similarities with the bacterial artificial chromosome clone of chinese cabbage. event-specific qualitative polymerase chain reaction (pcr) methods were established with the pri ... | 2008 | 18376596 |
| cruciferous vegetables, the gstp1 ile105val genetic polymorphism, and breast cancer risk. | cruciferous vegetables are the primary source of isothiocyanates and other glucosinolate derivatives that are known to induce phase ii detoxifying enzymes, including glutathione s-transferases (gsts). | 2008 | 18326615 |
| experience-induced habituation and preference towards non-host plant odors in ovipositing females of a moth. | in phytophagous insects, experience can increase positive responses towards non-host plant extracts or induce oviposition on non-host plants, but the underlying chemical and behavioral mechanisms are poorly understood. by using the diamondback moth, plutella xylostella, its host plant chinese cabbage, and a non-host plant chrysanthemum morifolium, as a model system, we observed the experience-altered olfactory responses of ovipositing females towards volatiles of the non-host plant, volatiles of ... | 2008 | 18253797 |
| development of extraction procedures for the determination of imidacloprid: application to residue analysis and dynamics of two formulations in chinese cabbage. | this study was undertaken to investigate whether an additional column clean-up procedure can affect the accuracy of an analytical method developed for the determination of imidacloprid residues in chinese cabbage. thereafter, the residue levels and the degradation rates of imidacloprid were investigated in experimental chinese cabbage plots after treatment with two different commercial formulations: emulsifiable concentrate (ec) and wettable powder (wp). the analyte was determined using high-per ... | 2008 | 18205138 |
| effects of the simultaneous application of potassium and calcium on the soil-to-chinese cabbage transfer of radiocesium and radiostrontium. | pot experiments were carried out in a greenhouse to investigate how effectively the transfer of radiocesium and radiostrontium from soil to chinese cabbage could be reduced by applying k and ca simultaneously to the soil. the sources of these elements were kcl and ca(oh)(2) at agrochemical grades. varying dosages of k and ca were tested for an acid loamy soil treated with a mixed solution of (137)cs and (85)sr at two different times - 3 d before sowing and 32 d after sowing. for the pre-sowing d ... | 2008 | 18945527 |
| enantioselective degradation of fipronil in chinese cabbage (brassica pekinensis). | chiral pesticide enantiomers often show different bioactivity and residual toxicity, but this property is usually ignored when evaluating the environmental risk and public safety. in this study, a convenient and precise chiral method was developed and validated for measuring fipronil enantiomers in chinese cabbage (brassica pekinensis) based on a high-performance liquid chromatography (hplc) using (r,r) whelk-o 1 column. then the proposed method was successfully applied to the study of enantiose ... | 2008 | 26049232 |
| plantgi: a database for searching gene indices in agricultural plants developed at niab, korea. | the plant gene index (plantgi) database is developed as a web-based search system with search capabilities for keywords to provide information on gene indices specifically for agricultural plants. the database contains specific gene index information for ten agricultural species, namely, rice, chinese cabbage, wheat, maize, soybean, barley, mushroom, arabidopsis, hot pepper and tomato. plantgi differs from other gene index databases in being specific to agricultural plant species and thus comple ... | 2008 | 18685722 |
| identification and quantitation of auxins in plants by liquid chromatography/electrospray ionization ion trap mass spectrometry. | auxin is an important phylohormone, which regulates specific physiological responses such as division, elongation and differentiation of cells. a new method using liquid chromatography/electrospray ionization ion trap mass spectrometry (lc/esi-itms) has been developed for identification and quantitation of four auxins. under the optimum conditions, four auxins (indole-3-acetic acid, indole-3-propionic acid, indole-3-butyric acid and 1-naphthylacetic acid) were completely separated and quantitate ... | 2008 | 18655000 |
| dissipation behavior of lufenuron, benzoylphenylurea insecticide, in/on chinese cabbage applied by foliar spraying under greenhouse conditions. | chinese cabbage has long been consumed as a staple food by the koreans in various forms of fresh, salted, or fermented as kimchi. to fulfill the off-season demand for this crop, it has become a common practice to be cultivated under greenhouse conditions. since pesticide residues in/on leafy vegetables have strongly concerned with food safety in the korean society, the changes of lufenuron residues, in/on chinese cabbage applied by foliar spraying under greenhouse conditions was investigated. lu ... | 2008 | 18592122 |
| effects of oyster shell on soil chemical and biological properties and cabbage productivity as a liming materials. | oyster shell, a byproduct of shellfish-farming in korea and containing a high amount of caco(3), has a high potential to be used as a liming material in agriculture. however, the agricultural utilization of oyster shell is limited due to its high concentration nacl. the oyster-shell meal collected had a low concentration of water soluble nacl (mean 2.7 g kg(-1)), which might be a result of stacking the material for 6 months in the open field. it has a very similar liming potential with calcium c ... | 2008 | 18294833 |
| sequence variation of chalcone synthase gene in a spontaneous white-flower mutant of chinese cabbage-pak-choi. | a spontaneous white-flower mutant of chinese cabbage-pak-choi (brassica campestris ssp. chinenesis, syn. b. rapa ssp. chinenesis) was found in our test fields, and all the plant characters except flower color were identical with wild type ones. we hypothesized that a mutational event had occurred in the gene coding for chalcone synthase (chs), the key enzyme of flavonoid biosynthesis pathway. two genes, later designated bcchs and bcchs-wf, were isolated from wild type and mutant chinese cabbage- ... | 2008 | 17605003 |
| estimation of boron intake and its relation with bone mineral density in free-living korean female subjects. | in this study, the status of boron intake was evaluated and its relation with bone mineral density was examined among free-living female subjects in korea. boron intake was estimated through the use of the database of boron content in frequently consumed foods by korean people as well as measuring bone mineral density, taking anthropometric measurements, and surveying dietary intake of 134 adult females in order to relatively evaluate the intake of boron as a nutrient to supplement the low level ... | 2008 | 18575817 |
| functional analysis of a pollen-expressed polygalacturonase gene bcmf6 in chinese cabbage (brassica campestris l. ssp. chinensis makino). | in our earlier work, a pollen-expressed polygalacturonase gene bcmf6 was isolated from floral bud of chinese cabbage (brassica campestris l. ssp. chinensis makino) by cdna-amplified fragment length polymorphism (cdna-aflp) transcript profiling and rapid amplification of cdna ends (race). to unravel the biological function of bcmf6 gene, the antisense fragment from the bcmf6 gene with a9 promoter and camv35s promoter was transferred into flowering chinese cabbage (b. campestris ssp. chinensis var ... | 2008 | 18415101 |
| regulation of nitrate reductase by nitric oxide in chinese cabbage pakchoi (brassica chinensis l.). | nitrate reductase (nr), a committed enzyme in nitrate assimilation, involves generation of nitric oxide (no) in plants. here we show that the nr activity was significantly enhanced by the addition of no donors sodium nitroprusside (snp) and nonoate (diethylamine nonoate sodium) to the culturing solution, whereas it was decreased by no scavenger 2-(4-carboxyphenyl)-4,4,5,5-tetramethyl-imidazoline-1-oxyl-3-oxide (cptio). interestingly, both no gas and snp directly enhanced but cptio inhibited the ... | 2008 | 18028279 |
| characterization and functional analysis of a novel pcp gene bcmf5 from chinese cabbage (brassica campestris l. ssp. chinensis makino). | brassica campestris male fertile 5 (bcmf5), a novel member of the pollen coat protein class a (pcp-a) gene family, was identified from brassica campestris l. ssp. chinensis makino (chinese cabbage-pak-choi). temporal and spatial expression analysis showed that bcmf5 is a late-expressed pcp gene related to the process of determining pollen fertility. functional analysis by hairpin rna (hprna)-mediated rna interference also showed that the expression of bcmf5 is inhibited, which resulted in the lo ... | 2008 | 17945379 |
| bcmf5, a pollen coat protein gene (pcp), from brassica rapa. ssp. chinensis, involved in the transcription of different lengths of 3'-utrs of pcps. | two transcript-derived fragments (genbank accession number dn237907.1 and dn237908.1) with high homology accumulated in the wild-type flower buds of chinese cabbage (brassica rapa l. ssp. chinensis makino) are isolated and investigated. by rapid amplification of cdna ends (race), the full length cdna of the two fragments were obtained. the alignment of their cdna sequence showed that they are identical except for differences in a few nucleotides and should belong to the same gene, namely, b rass ... | 2008 | 17676432 |
| bcmf13, a new reproductive organ-specific gene from brassica rapa. ssp. chinensis, affects pollen development. | a transcript-derived fragment (genbank accession number dn237920.1) accumulated in the wild-type flower buds of chinese cabbage (brassica campestris l. ssp. chinensis makino, syn. b. rapa ssp. chinensis) was isolated and further investigated. the full length dna and cdna of the fragment were cloned by rapid amplification of cdna ends. the gene, bcmf13, encodes a protein of 73 amino acids and is interrupted by an intron of 106 bp (genbank accession number ef158459). southern blot analysis reveale ... | 2008 | 17387632 |
| mapping qtls for root morphological traits in brassica rapa l. based on aflp and rapd markers. | root growth and thickening plays a key role in the final productivity and even the quality of storage roots in root crops. this study was conducted to identify and map quantitative trait loci (qtls) affecting root morphological traits in brassica rapa by using molecular markers. an f2 population was developed from a cross between chinese cabbage (brassica rapa ssp. chinensis) and turnip (b. rapa ssp. rapifera), which differed greatly in root characters. a genetic map covering 1837.1 cm, with 192 ... | 2008 | 18263966 |
| plantgm: a database for genetic markers in rice (oryza sativa) and chinese cabbage (brassica rapa). | the plant genetic map database (plantgm) has been developed as a web-based system which provides information about genetic markers in rice (oryza sativa) and chinese cabbage (brassica rapa). the database has three major parts and functions; (1) map search, (2) marker search, and (3) qtl search. at present, the database provides characterization information for about 3258 genetic markers. it has 2800 rflp and 112 qtl markers related to rice in addition to 321 rflp and 25 pcr-based markers for chi ... | 2008 | 19238232 |
| free and bound phenolic compounds in leaves of pak choi (brassica campestris l. ssp. chinensis var. communis) and chinese leaf mustard (brassica juncea coss). | eleven pak choi cultivars and two leaf mustard cultivars grown under field conditions in china were investigated for the free polyphenol content in their outer and inner leaves, as well as in their leaf blades and leaf stalks. in most cases, there were no significant differences between the hydroxycinnamic acid derivative and flavonoid derivative contents in the outer and inner leaves for the 13 cultivars. however, the contents of blades and stalks differed: hydroxycinnamic acids and flavonoids ... | 2008 | 26047268 |
| isolation and characterization of a male sterility gene homolog bcms2 from chinese cabbage-pak-choi that expressing in an anther-specific manner. | a male sterility gene homolog, designated bcms2, was isolated from flower buds using gene-specific primer pairs and was submitted to genbank under accession number ef093533. comparison of bcms2 gene with ms2 from arabidopsis thaliana and ms2bnap from brassica napus revealed some differences in gene structure and evolution. the full genomic dna sequence of bcms2 was 2,576 bp in length containing 8 exons and 7 introns, more than those of ms2bnap but less than ms2. rt-pcr showed that bcms2 gene exp ... | 2008 | 17514434 |
| molecular characterization of two important antifungal proteins isolated by downy mildew infection in non-heading chinese cabbage. | two cdna clones for a pathogen induced genes in non-heading chinese cabbage (brassica rapa ssp. chinensis l. cv. suzhouqing) were isolated and characterized. the two full-length cdna clones, designated bcchi and bcaf were isolated during the resistance response to peronospora parasitica. sequence analysis of corresponding cdna clones confirmed the translation products of both genes showed high degree of homology to other plant chitinases and plant defensins, respectively. genomic dna southern bl ... | 2008 | 17762976 |