Publications

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effect of the hypocotyl hook on greening in etiolated cucumber cotyledons.four-day-old etiolated cucumber cotyledons (cucumis sativus, l.) were excised and allowed to green in white fluorescent light at 28 c. cotyledons excised with a full hypocotyl hook exhibited a lag phase of 1 hour before entering the rapid greening phase, whereas cotyledons excised without any hypocotyl hook exhibited a lag phase of 6 hours. cotyledons excised with varying lengths of hypocotyl hook accumulated chlorophyll roughly in proportion to the hook length. when cotyledons were excised with ...197016657533
ribonucleic acid synthesis by cucumber chromatin: developmental and hormone-induced changes.when intact etiolated 2-day cucumber (cucumis sativus) embryos were treated with indoleacetic acid (iaa), gibberellin a(7) (ga(7)), or kinetin, chromatin derived from the embryonic axes exhibited an increased capacity to support rna synthesis in either the presence or the absence of bacterial rna polymerase. an iaa effect on cucumber rna polymerase activity was evident after 4 hours of hormone treatment; the iaa effect on dna template activity (bacterial rna polymerase added) occurred after long ...197016657509
porphyrin biosynthesis in cell-free homogenates from higher plants.the porphyrin and phorbin biosynthetic activity of etiolated cucumber (cucumis sativus, l.) cotyledons was compared to that of cotyledonary homogenates. etiolated cotyledons incubated with delta-aminolevulinic acid accumulate protoporphyrin, coproporphyrin, small amounts of mg protoporphyrin monoester, and trace amounts of uroporphyrin. they also incorporate 4-(14)c-delta-aminolevulinic acid into free porphyrins, protochlorophyllide, protochlorophyllide phytyl ester, and mg protoporphyrin monoes ...197016657503
sex expression in cucumber plants as affected by 2-chloroethylphosphonic acid, ethylene, and growth regulators.the effects of 2-chloroethylphosphonic acid (ethrel), ethylene, and some growth retardants on sex expression of cucumber plants (cucumis sativus l.) were investigated, with the use of a monoecious cultivar (improved long green) which has a strong tendency toward maleness.ethrel caused increased femaleness when applied at 50 milligrams per liter at the first to the third leaf stage, but when applied at the cotyledon stage it was ineffective. the later the time of application, the higher the node ...197016657476
dioecism in cucumbers, cucumis sativus l. 197017248476
polyacrylamide gel analysis of high molecular weight ribonucleic acid from etiolated and green cucumber cotyledons.cucumis sativus l. seeds and 5-day-old dark-grown cotyledons contain 25 and 18 s cytoplasmic ribosomal rnas as main components. the major increase in nucleic acid content in both green and etiolated cotyledons occurs between days 5 and 7 of germination. this increase is characterized by an important synthesis of 23 and 16 s plastid (chloroplast and proplastid) ribosomal rnas. proplastid rna synthesis appears to continue for a longer period in the dark-grown cotyledons, despite a total rna conten ...197016657426
photochlorophyll biosynthesis in cucumber (cucumis sativus, l.) cotyledons.the formation of protochlorophyllide and protochlorophyllide phytyl ester was investigated during etioplast biogenesis in order to study the biosynthetic relation of these two compounds. protochlorophyllide accumulates slowly during the first 2 days of germination, its rate of formation increases sharply during the 3rd day, and then it decreases. protochlorophyllide phytyl ester starts accumulating a day later; its formation coincides with the initiation of xanthophyll biosynthesis. kinetic anal ...197016657422
[biological value of hydroponically grown cucumbers and tomatoes]. 19694312646
wall modifications in developing giant cells of vicia faba and cucumis sativus induced by root knot nematode, meloidogyne javanica. 19695799564
properties of a plant virus-induced rna polymerase in cucumbers infected with cucumber mosaic virus. 19685684122
bloater formation by gas-forming lactic acid bacteria in cucumber fermentations.the formation of "bloaters" (hollow stock) in cucumbers brined for salt-stock purposes at 5 to 10% salt has been associated with gaseous fermentation caused chiefly by yeasts. recently, serious early bloater damage, not attributable to yeasts, has been observed in commercial-scale experiments on control of bloaters in overnight dill pickles brined in 50-gal barrels at 3.0 to 4.5% salt. growth of fermentative species of yeasts was effectively controlled by the addition of 0.025, 0.05, and 0.1% so ...196816349808
contents and recovery of gibberellins in monoecious and gynoecious cucumber plants.diffusates from seedlings and root exudates from 6-week-old plants of a monoecious line of cucumber, cucumis sativus l., contained considerably higher levels of gibberellin-(ga-) like substances than did those from plants of an isogenic gynoecious line. most of the ga-like activity was found in a chromatogram region typical of ga(1) and ga(3); some activity, particularly in root exudates, appeared also at an r(f) similar to that of ga(4) and ga(7).when seedlings were treated with (3)h-labeled ga ...196816656843
spherical lactic acid-producing bacteria of southern-grown raw and processed vegetables.the frequency and levels of population of the spherical lactic acid-producing bacteria were determined on raw and processed yellow summer and zucchini squash, a variety of greens, green beans, okra, southern peas, and butter and lima beans, and on fresh cucumbers and corn flowers. six taxa occurred consistently: leuconostoc mesenteroides, yellow-pigmented streptococci, streptococcus faecium, aerococcus viridans, and s. faecalis and s. faecalis var. liquefaciens. the same taxa occurred with the s ...196716349739
histological effect of certain pickles on the human gastric mucosa. a preliminary report.the histological effects of several types of pickles and control substances were assessed by repeated suction (per os) biopsies of the gastric antrum in three healthy men. the ingestion of 30 ounces of fukujinzuke (assorted vegetables pickled in soy sauce) or of vinegared gherkins over a three-day period caused marked changes in the surface epithelium and gastric pits in all three subjects. the abnormalities consisted of loss of cellular mucus, nuclear enlargement, prominent nuclear chromatin an ...19676026337
[isolation of the virus of tobacco necrosis from the fruits of field cucumbers]. 19676082776
[the dose response relations in geotropic and phototropic stimulation: comparison of mono-with dicotyledonous plants].the increase in the geotropic curvatures of avena coleoptiles and lens epicotyls is linear and proportional to the time of stimulation. with low stimulation the sensitivities of both objects are equal; with longer stimulation the curvature of avena coleoptiles is somewhat greater.to increased phototropic irradiance lens epicotyls react with a first and a second positive curvature. between the two ranges of curvature (from about 10,000 up to 1,000,000 lx · sec) they are phototropically insensitiv ...196724522545
kinetics of growth retardant and hormone interactions in affecting cucumber hypocotyl elongation.the capacities of indole-3-acetic acid (iaa) and gibberellin a(3) (ga(3)) to counteract the inhibitory effects of (2-chloroethyl) trimethylammonium chloride (ccc), 2-isopropyl-4-dimethylamino-5-methylphenyl-1-piperidinecarboxylate methyl chloride (amo-1618), and n,n-dimethylaminosuccinamic acid (b-995) on hypocotyl elongation in light-grown cucumber (cucumis sativus l.) seedlings were investigated. one mug of ga(3) applied to the shoot tip was sufficient to completely nullify the effect of 10 mu ...196716656555
[gel filtration of ascorbic acid oxidase in cucumbers (cucurbita pepo)]. 19674971157
isolation and identification of indole-3-ethanol (tryptophol) from cucumber seedlings.crude ether extracts of green shoots of cucumis sativus l. promoted the elongation of cucumber hypocotyl segments. purification of the extract was accomplished by deae cellulose, silicic acid, and magnesium silicate chromatography followed by gel filtration and preparative thin layer chromatography. identification of the growth promoter as indole-3-ethanol was achieved by mass spectrometry, thin layer and gas chromatography, and ultraviolet and visible spectroscopy, as well as by physiological c ...196716656532
[virus particles in phloem exudate from cucumis sativus l. after infection by cucumis virus 2 a].sieve tube sap obtained from cucumber plants infected by cucumis virus 2 a induced the typical mosaic disease when it was inoculated into healthy plants of the same species. the infectious factor could not be removed by dialysis or by treatment with phosphodiesterase. therefore it is improbable that the virus is transported in the sieve tubes as low molecular units or as an unprotected rna. rod shaped particles (345×23 mμ) were found in the infectious sieve tube sap when it was investigated by e ...196724554368
photodynamic injury to heated leaves.the leaves of tradescantia fluminensis vell, were kept in light and darkness after short-term heating (5 min and 10 min) at different temperatures. in light temperature causing injury was 10° lower than in darkness. a considerable destruction of chlorophyll occurred when the heated leaves were kept in light. if the light intensity was 4,000 lux or even lower the damage to cells was not accompanied by bleaching of chlorophyll. light produced no effect on unheated leaves. in variegated white-green ...196624557781
light responses, growth factors and phytochrome transformations of cucumis seedling tissues.the elongation of hypocotyl segments cut from etiolated cucumis sativus seedlings is not affected by a single red light exposure at the start of the 20-hour growth period, but is inhibited by brief exposures repeated each hour or two even though these give no greater total energy. the inhibition is annulled if each red exposure is followed by far-red. the time course of phytochrome transformations in this tissue after a single red light exposure, followed spectrophotometrically, shows no anomalo ...196624557986
monovalent cations and growth regulation. i. growth responses in cucumber hypocotyl segments.the elongation of etiolated cucumber (cucumis sativus l.) hypocotyl segments was stimulated by kcl and a number of other potassium salts at a concentration of 0.02 n k(+). the effect of kcl was not evident until 14 hours after the beginning of treatment.nacl, licl, and rbcl enhanced elongation of the segments, and their dosage-response curves were similar to that for kcl. at supraoptimal concentrations (>/= 0.05 m), licl inhibited segment growth. cscl was inhibitory at all concentrations tested ...196616656244
pure culture fermentation of green olives.the method previously developed by us for the pure-culture fermentation of brined cucumbers and other vegetables has been applied successfully to manzanillo variety olives. field-run grade fruit was processed first by conventional procedures to remove most of the bitterness. then the relative abilities of lactobacillus plantarum, l. brevis, pediococcus cerevisiae, and leuconostoc mesenteroides to become established and produce acid in both heat-shocked (74 c for 3 min) and unheated olives, brine ...196616349674
determination of relative auxin content in hermaphrodite and andromonoecious cucumis sativus l. 196516656088
lipid alterations during the fermentation of dill pickles.analyses of various lipid fractions of sections of cucumbers and of good and bloated dill pickles showed that marked changes occur in all lipid fractions during fermentation. the most striking difference noted was the decrease in the phospholipid fraction. a nearly fourfold increase in free fatty acid, as well as a marked increase in the neutral fat fatty acids and unsaponifiables, occurred. gas chromatographic analyses of the methyl esters of fatty acids from the various lipid fractions yielded ...196416349650
sensitivity of female inbreds of cucumis sativus to sex reversion by gibberellin.two female inbred cucumbers were developed by substituting gene acr for acr in the genetic backgrounds of the monoecious races marketer and tokyo, which exhibit weak and strong male tendency respectively. marketer females are resistant and tokyo females are sensitive to sex reversion in response to treatments with gibberellin a(3). resistance and sensitivity of this type appear to depend upon the genetic system which controls sex tendency.196417807849
gynodioecism in cucumbers. 196417248199
pure culture fermentation of brined cucumbers.the relative abilities of pediococcus cerevisiae, lactobacillus plantarum, l. brevis, and several other species of lactic acid bacteria to grow and produce acid in brined cucumbers were evaluated in pure culture fermentations. such fermentations were made possibly by the use of two techniques, gamma radiation (0.83 to 1.00 mrad) and hot-water blanching (66 to 80 c for 5 min), designed first to rid the cucumbers of naturally occurring, interfering, and competitive microbial groups prior to brinin ...196416349651
chemical regulation of flower sex expression and vegetative growth in cucumis sativus l.pistillate flower formation in monoecious cucumber plants is increased when allyl trimethylammonium bromide is added to aerated solution cultures used as the root medium. by contrast, gibberellin induces staminate flower formation on gynoecious cucumber plants. the two chemicals also have diametrically opposite effects in tendril formation and vegetative extension.196217754182
induction of staminate flowers on gynoecious cucumbers with gibberellin a3.staminate flowers induced on gynoecious plants permitted the establishment and increase of inbred lines bearing only pistillate flowers. this method of altering sex expression has practical applications in developing f(1) hybrids, and is useful in studying the physiology and genetics of sex expression.196017780675
reversible and irreversible inhibition of necrotic ringspot virus in cucumbers by pancreatic ribonuclease. 195913669313
populations and softening enzyme activity of filamentous fungi on flowers, ovaries, and fruit of pickling cucumbers. 195813595656
[infestation of salted tomatoes and cucumbers with drosophila larvae; case report]. 195713474335
sorbic acid as a selective agent in cucumber fermentations. ii. effect of sorbic acid on the yeast and lactic acid fermentations in brined cucumbers. 195713488440
pectinesterase in the cucumber. 195114830258
studies on the inheritance of downy mildew resistance and of other characters in cucumbers. 194620281706
[not available]. 194521022477
control of powdery mildew and red spider on greenhouse cucumbers. 193117840395
mendelian inheritance of epidermal characters in the fruit of cucumis sativus. 191317830218
some diseases of lettuce and cucumbers. 189117838306
transcriptomic analysis of short-fruit 1 (sf1) reveals new insights into the variation of fruit-related traits in cucumis sativus.fruit size is an important quality trait in different market classes of cucumis sativus l., an economically important vegetable cultivated worldwide, but the genetic and molecular mechanisms that control fruit size are largely unknown. in this study, we isolated a natural cucumber mutant, short fruit 1 (sf1), caused by a single recessive mendelian factor, from the north china-type inbred line cns2. in addition to significantly decreased fruit length, other fruit-related phenotypic variations wer ...028592854
the effects of different sewage sludge amendment rates on the heavy metal bioaccumulation, growth and biomass of cucumbers (cucumis sativus l.).when sewage sludge is incorrectly applied, it may adversely impact agro-system productivity. thus, this study addresses the reaction of cucumis sativus l. (cucumber) to different amendment rates (0, 10, 20, 30, 40 and 50 g kg(-1)) of sewage sludge in a greenhouse pot experiment, in which the plant growth, heavy metal uptake and biomass were evaluated. a randomized complete block design with six treatments and six replications was used as the experimental design. the soil electrical conductivity, ...028550630
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