| mutagenic compounds in soy sauce, chinese cabbage, coffee and herbal teas. | | 1986 | 3952098 |
| permethrin and its two metabolite residues in seven agricultural crops. | metabolite residues of permethrin are not reported in the literature for most agricultural crops. this paper reports residues of permethrin and its 2 metabolites (dichlorovinyl acid and metaphenoxybenzyl alcohol) in 7 different agricultural crops (chinese cabbage, spinach, asparagus, raspberries, green peas, turnip roots, and turnip greens). permethrin residues declined approximately 85% within 7 days after treatment in all crops. in most cases, the acid metabolite residues peaked at 3 days, and ... | 2013 | 4086440 |
| s-adenosylmethionine decarboxylase and spermidine synthase from chinese cabbage. | the enzyme, s-adenosylmethionine (sam) decarboxylase (ec 4.1.1.50), has been demonstrated in leaves of chinese cabbage, (brassica pekinensis var pak choy). all of the enzyme can be found in extracts of the protoplasts obtained from the leaves of growing healthy or virus-infected cabbage. the protein has been purified approximately 1500-fold in several steps involving ammonium sulfate precipitation, affinity chromatography, and sephacryl s-300 filtration. the reaction catalyzed by the purified en ... | 1985 | 16664325 |
| dicyclohexylamine-induced shift of biosynthesis from spermidine to spermine in plant protoplasts. | an improved analytical method, based on high pressure liquid chromatography, has been developed for the simultaneous determination of the polyamines and s-adenosyl-containing compounds in extracts of plant protoplasts. the method involves simple procedures for sample preparation and permits quantification of 1 picomole or less for all the compounds. this method has been used to study the effects of dicyclohexylamine, an inhibitor of plant spermidine synthase (sindhu, r. k., s. s. cohen 1984 plan ... | 1985 | 16664284 |
| subcellular localization of spermidine synthase in the protoplasts of chinese cabbage leaves. | previous studies on the presence of spermidine synthase (ec 2.5.1.16) in the protoplasts of chinese cabbage (brassica pekinensis var pak choy) leaves had detected a small but significant fraction of the enzyme in a crude chloroplast fraction (cohen, balint, sindhu 1981 plant physiol 68: 1150-1155). to establish whether this enzyme is truly a chloroplast component, we have isolated purified intact chloroplasts from protoplasts by density gradient centrifugation in silica sols (ludox am). such chl ... | 1984 | 16663802 |
| propylamine transferases in chinese cabbage leaves. | we have found spermidine synthase and spermine synthase activities in extracts of leaves of chinese cabbage (brassica pekinensis var. pak choy) and have developed an assay of the former in crude extracts. the method is based on the transfer of the propylamine moiety of decarboxylated s-adenosylmethionine to labeled putrescine, followed by ion-exchange separation of the labeled amine substrate and product, which are then converted to the 5-dimethylamino-1-napthalene sulfonyl (dansyl) derivatives ... | 1984 | 16663475 |
| analysis and occurrence of total n-nitroso compounds in the japanese diet. | a quantitative technique for differentiating the total n-nitrosamides from the total n-nitroso compounds has been devised. the principle of this method is based on the chemiluminescence response of a nitroso compound under different denitrosating conditions. we also examined the effect of nitrite scavengers on the stability of n-nitroso compounds and found that both ammonium sulfamate and hydrazine sulfate can be satisfactorily used for the detection of chemiluminescence response with hydrogen b ... | 1984 | 6533016 |
| effect on growth and nickel content of cabbage plants watered with nickel solutions. | chinese cabbage plants were watered with different concentrations of nicl2 solutions and the effect on growth and uptake of nickel in the plants were studied. no toxic effect on plant growth was observed. a higher content of nickel was found in the plants exposed to more concentrated nickel solutions. nickel contamination and its clinical consequences are discussed. | 1979 | 498768 |
| glucosinolates and derived products in cruciferous vegetables. analysis of 14 varieties of chinese cabbage. | | 2000 | 762327 |
| [study of the possibility of utilizing the transpired mositure condensate from sweet potato for growing plants in biological life support systems]. | the effect of nonpurified condensate obtained during prolonged cultivation of batata in a sealed chamber upon batata cuttings and seedlings of garden cress, radish and chinese cabbage was studied. it was shown that nonpurified condensate produced an inhibitory effect on the formation of roots in batata cuttings and on the growth of previously developed roots of batata cuttings and seedlings. the studies which used a chemical model of 3,4-dihydroxy phenylalanine indicated that the condensate cont ... | 2009 | 13246 |
| effects of kinetin on phosphorylation of leaf membrane proteins. | isolated chinese cabbage leaf membranes were phosphorylated by membrane-associated protein kinase(s) in the presence or [gamma-32p]atp. membrane-associated 32p radioactivity appeared to be bound to membrane proteins. both smooth cell membranes and chloroplast lamellae reacted with atp. phosphorylation of the membranes was inhibited by ca2+ and partially inhibited by kinetin or 6-benzyladenine. the possibility that cytokinin effects on membrane phosphorylation might increase ion availability was ... | 1976 | 1252471 |
| proceedings: autoradiographical studies on rna synthesis in healthy and tymv infected chinese cabbage: effect of actinomycin d. | | 1976 | 1275409 |
| proceedings: biochemical studies on rna synthesis in healthy and tymv infected chinese cabbage: effect of actinomycin d. | | 1976 | 1275408 |
| proceedings: replication of tymv in chinese cabbage protoplasts. | | 1976 | 1275407 |
| a chlorophyll-protein complex lacking in photosystem i mutants of chlamydomonas reinhardtii. | sodium dodecyl sulfate gel electrophoresis of unheated, detergent-solubilized thylakoid membranes of chlamydomonas reinhardtii gives two chlorophyll-protein complexes. chlorophyll-protein complex i (cp i) is the blue-green in color and can be dissociated by heat into "free" chlorophyll and a constituent polypeptide (polypeptide 2; mol wt 66,000). similar experiments with spinach and chinese cabbage show that the higher plant cp i contains an equivalent polypeptide but of slightly lower molecular ... | 1975 | 1194353 |
| [equation of the helix for separating plants in a spiral-radial cultivator]. | highly effective and compact cultivators must pullapart plants during vegetation in order to save light energy and area under crops. cultivators ensuring a helical method for pulling plants apart are already available. the present paper suggests the criteria of the efficiency of using the area under crops of the cultivator and deformation of the leaf crown of plants (sigma- and delta-spectra). with respect to these values the main task of calculating the helix has been formulated. having chinese ... | 2012 | 234550 |
| evidence for tymv-induced rna and dna synthesis in the nuclear fraction from infected chinese cabbage leaves. | | 1974 | 4820885 |
| studies on environmental contamination by uranium. 4. uranium absorption by chinese cabbage. | | 1974 | 4842199 |
| kinetin and carbohydrate metabolism in chinese cabbage. | the effects of kinetin on starch and sugar levels and on (14)co(2) and (32)p-orthophosphate labeling patterns of floated chinese cabbage (brassica pekinensis) leaf discs were investigated. kinetin caused gross starch degradation. neutral sugars were depressed by 30 to 40% in leaf tissue treated with kinetin for 24 hours. (14)co(2) labeling of leaf discs pretreated with kinetin for 24 hours showed increased radioactivity in chloroform-soluble material and most sugar phosphates, and a 35 to 40% de ... | 1971 | 16657661 |
| rna-dependent rna polymerase in chinese cabbage. | | 1971 | 5572618 |
| non-uniformities in the metabolism of excised leaves and leaf discs. | in intact tobacco and chinese-cabbage (brassica pekinensis) leaves an "ageing" process begins as soon as the leaves are excised. the terminal few millimetres of the petiole increasingly preempt materials such as phosphate and uracil taken up by the leaf. actinomycin d treatment blocks this process and leads to increased uptake of such materials into the lamina.immediately after excision there is a radial "geographical" gradient, in the ability of excised leaf discs to accumulate phosphate and ur ... | 1971 | 24487445 |
| some effects of kinetin on floated chinese cabbage leaf discs. | | 1969 | 5792855 |
| electron microscopic and biochemical characterization of fraction i protein. | electron micrographbs of high resolution have been obtained from fraction i protein of chinese cabbage leaves. the protein, which has ribulose-1,5-diphosphate carboxylase activity, appear to be a cube swth edge of about 120 angstroms. substrtucture canl be seen in individual particles, conlsistent with a model having 24 subunits, the number prescribed by the available physical and chlemical data. | 1965 | 5866657 |
| ribosomes and polyribosomes in brassica pekinensis. | | 1964 | 14240647 |