Publications
| Title | Abstract | Year(sorted descending) Filter | PMID Filter |
|---|
| colorimetric determination of aconitic acid in avena sativa (oat). | 1970 | 5530564 | |
| microfibril orientation in plant cell walls. | the distribution of particles on the surface of the plasmalemma in the collenchyma of apium graveolens was studied by the freeze-etching technique. the aim was to determine whether the distribution of particles was related to the known longitudinal or transverse orientation of cellulose microfibrils in different layers of the walls of these cells. preliminary statistical studies have shown no obvious correlation between particle distribution and microfibril orientation although the distribution ... | 1970 | 24500125 |
| [localization of calcium at the level of chloroplasts of oat leaf (avena sativa l) by a very high resolution trace-autoradiography method]. | 1969 | 4989893 | |
| monovalent ion stimulated adenosine triphosphatase from oat roots. | monovalent ion stimulated atpase activity from oat (avena sativa) roots has been found to be associated with various membrane fractions (cell wall, mitochondrial and microsomal) of oat roots. the atpase requires mg(2+) (or mn(+2)) but is further stimulated by k(+) and other monovalent ions. the monovalent ions are ineffective in the absence of the divalent activating cation. the atpase has been described with respect to monovalent ion specificity, temperature, ph, substrate specificity, and mg(2 ... | 1969 | 16657073 |
| electrophoretic variation in esterases of three varieties of oats (avena sativa). | 1968 | 5723612 | |
| isolation, properties, and structure of fraction i protein from avena sativa l. | 1. a method is described for the extraction and purification of fraction i protein from avena sativa l. leaves. 2. the protein possesses ribulose diphosphate carboxylase activity. chromatography on gels of sephadex g-200 separates phosphoribulokinase and ribose phosphate isomerase from the carboxylase. 3. the s°20w was calculated to be 18.2, the stokes radius (determined by gel filtration on a cabibrated column) 74 å, the molecular weight 5.7×10(5), and the frictional ratio 1.35. 4. an amino aci ... | 1968 | 24522874 |
| some properties of phytochrome isolated from dark-grown oat seedlings (avena sativa l.). | phytochrome was partially purified from etiolated seedlings of avena sativa l. several properties of the red-absorbing (p(r)) and far-red absorbing (p(fr)) forms of the pigment were compared. the 2 forms could not be shown to differ with respect to their sedimentation velocity in sucrose density gradients, elution volume from sephadex g-200 columns, binding properties on calcium phosphate, or electrophoretic mobility. p(fr), however, was more labile than p(r) during precipitation with 50% ammoni ... | 1968 | 16656907 |
| in vitro phytochrome dark reversion process. | thermal reversion of the far-red absorbing form of phytochrome to the red absorbing form in darkness has been investigated in crude and partially purified isolates from a number of etiolated and light grown higher plants. the influence of temperature, aging and urea on the rate of reversion was also determined.phytochrome isolated from all higher plants underwent reversion. the reversion proceeded in at least 2 distinct stages; a short rapid initial phase being followed a slow phase which contin ... | 1968 | 16656838 |
| [tannins and growth : iii. analysis of the iaa/tannin-antagonism in oat-coleoptile cylinders]. | an analysis of the iaa/tannin-antagonism which occurs in oat-coleoptiles was carried out. the investigations were done with 10 mm coleoptile sections of 4-day-old seedlings of avena sativa l. var. "flämingsgold".first it was shown that the iaa/tannin-antagonism which could be established with a tannin-preparation by "fluka" resembled very much that caused by "merck-tannin". whereas the antagonism which was demonstrated by "merck-tannin" seemed to be independent of the iaa concentration, the anta ... | 1967 | 24553745 |
| effect of inversion on growth and movement of indole-3-acetic acid in coleoptiles. | the effect of a 180 degrees displacement from the normal vertical orientation on longitudinal growth and on the acropetal and basipetal movement of (14)c-iaa was investigated in avena sativa l. and zea mays l. coleoptile sections. inversion inhibits growth in intact sections (apex not removed) and in decapitated sections supplied apically with donor blocks containing auxin. under aerobic conditions, inversion inhibits basipetal auxin movement and promotes acropetal auxin movement, whereas under ... | 1967 | 16656645 |
| geotropic response of coleoptiles under anaerobic conditions. | coleoptiles of avena sativa and zea mays do not develop a geotropic response under anaerobic conditions. | 1967 | 16656622 |
| a cell wall polysaccharide-hydrolyzing enzyme system in avena sativa l. coleoptiles. | 1967 | 6051573 | |
| metabolic turnover in cell wall constituents of avena sativa l. coleoptile sections. | 1967 | 6051572 | |
| the effects of some auxins on the levels of phosphate esters in avena sativa coleoptile sections. | 1967 | 6049497 | |
| mineral ion contents and cell transmembrane electropotentials of pea and oat seedling tissue. | the relationships of concentration gradients to electropotential gradients resulting from passive diffusion processes, after equilibration, are described by the nernst equation. the primary criterion for the hypothesis that any given ion is actively transported is to establish that it is not diffusing passively. a test was made of how closely the nernst equation describes the electrochemical equilibrium in seedling tissues. segments of roots and epicotyl internodes of pea (pisum sativum var. ala ... | 1967 | 16656483 |
| simulated low-gravity environments and respiratory metabolism in avena seedlings. | using horizontal and vertical axis clinostats and sand-grown oat seedlings (avena sativa), it was found that horizontal clinostat rotation at 2 rpm increased respiration and inorganic and organic phosphorus content of seedlings. increased coleoptile geotropism and root growth are attributed to rotational nullification of the directional component of the gravitational stimulus. these growth modifications are mechanistically explicable by the relationship between plant metabolism and auxin concent ... | 1966 | 16656433 |
| phosphorus metabolism of germinating oat seeds. | an investigation has been made of the changes in the major phosphorus containing substances in avena sativa during the first 8 days of dark germination. the endosperm, roots, and shoots were analyzed separately for acid soluble-p, phytic acid-p, inorganic-p, lipid-p, nucleic acid-p, and protein-p. phytic acid-p comprised 53% of the total seed phosphate, while the sum of lipid-p, nucleic acid-p and protein-p comprised 27% of the seed phosphate. all these reserve phosphate materials were mobilized ... | 1966 | 16656424 |
| maintenance of polarity of auxin movement by basipetal transport. | the polar, basipetal transport of indoleacetic acid helps to maintain polarity of auxin movement in coleoptiles of avena sativa l. by opposing acropetal diffusion. this conclusion is supported by 3 different kinds of experiments. in all 3 experiments, sections took up (14)c carboxyl-labeled indole-3-acetic acid anaerobically, and the distribution of auxin within all sections was similar at the end of uptake.[list: see text]. | 1966 | 16656315 |
| movement of indoleacetic acid in coleoptiles of avena sativa l. ii. suspension of polarity by total inhibition of the basipetal transport. | acropetal and basipetal movement of indole-3-acetic acid through coleoptiles of avena sativa l. was studied. sections 10-mm long were supplied with either apical or basal sources containing c(14) carboxyl-labeled indoleacetic acid (10(-5)m). anaerobic conditions inhibit metabolically dependent movement (transport) thus reducing basipetal but not acropetal movement. total inhibition of basipetal transport abolishes the polarity of auxin uptake and movement. the nonpolar movement that remains in a ... | 1966 | 5904589 |
| effect of oxygen on photosynthesis, photorespiration and respiration in detached leaves. ii. corn and other monocotyledons. | the effect of o(2) on the co(2) exchange of detached leaves of corn (zea mays), wheat (triticum vulgare), oats (avena sativa), barley (hordeum vulgare), timothy (phleum pratense) and cat-tail (typha angustifolia) was measured with a clark oxygen electrode and infrared carbon dioxide analysers in both open and closed systems.corn leaves did not produce co(2) in the light at any o(2) concentration, as was shown by the zero co(2) compensation point and the absence of a co(2) burst in the first minu ... | 1966 | 16656272 |
| cross protection and mutual exclusion by three strains of barley yellow dwarf virus in avena sativa l. | 1965 | 5833319 | |
| the fine structure of chloroplast stroma following aldehyde osmium-tetroxide fixation. | markedly improved fixation of leaf tissues is obtained by means of a glutaraldehyde (or acrolein)-osmium tetroxide procedure, as compared with the results of potassium permanganate or osmium tetroxide fixation methods. the procedure has proved useful in all species so far examined. chloroplasts are particularly well preserved. in this paper details of components of the ground-substance of avena sativa plastids are presented. they include the following:-(i) the "tromacentre" is an area of aggrega ... | 1965 | 14286298 |
| electrical resistance of cell membranes of avena coleoptiles. | the cell membrane resistance to direct current was measured in single cells for the first time in a higher plant tissue, oat coleoptiles (avena sativa). on the assumption that the current density over the cell surface was uniform, a mean value of about 1300 ohm-cm(2) was found for cells in an external nutrient medium containing 1 mmole each of k(+), na(+), and ca(++) per liter. as expected, either decreasing k(+) concentration or increasing ca(++) concentration increased the resistance. | 1964 | 17807848 |
| avenacin, an antimicrobial substance isolated from avena sativa. ii. structure. | 1964 | 14155109 | |
| avenacin, an antimicrobial substance isolated from avena sativa. i. isolation and antimicrobial activity. | 1964 | 14155108 | |
| studies on the effects of gaseous ions on plant growth. i. the influence of positive and negative air ions on the growth of avena sativa. | exposure of avena sativa seedlings to unipolar ionized atmospheres of either charge produced statistically significant stimulation of growth as measured by mean stem length, integral elongation, and dry weight. the extent of growth increase was related to the atmospheric ion density and this in turn determined the magnitude of current flow to ground. the minimal current measured in the ground circuit and capable of producing a measurable difference in growth was 4.3 to 4.6 x 10(-13) amp/plant. | 1962 | 14459883 |
| atmospheric radiocarbon activity in 1959. | 1960 | 18988353 | |
| [effect of microorganismal culture filtrate on production of scopoletin by germinal roots of oat (avena sativa l. )]. | 1958 | 13534431 | |
| temperature as a predetermining factor in the development of avena sativa. | 1935 | 16653270 |