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  • Phaseolus  (6)
  • Wheat
  • Springer  (9)
  • American Association of Petroleum Geologists (AAPG)
  • 1980-1984  (9)
  • 1980  (9)
Collection
Keywords
Publisher
  • Springer  (9)
  • American Association of Petroleum Geologists (AAPG)
Years
  • 1980-1984  (9)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Changing cell-wall compositions in hypocotyls of dark-grown bean seedlings (1980)
    Springer
    Planta 149 (1980), S. 209-212 
    Details
    ISSN: 1432-2048
    Keywords: Cell elongation ; Cell wall ; Glucan ; Phaseolus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Hypocotyls of dark-grown 6-day-old seedlings of Phaseolus vulgaris L. proved to be sufficiently homogeneous to permit studies relating the rate of cell elongation to the composition of the primary cell walls. Whereas the levels of cellulose and uronic acids remained practically constant during and after cell extension, all other components showed major or minor changes. Cell-wall protein, as such, decreased by more than 50%, but indications are that hydroxyproline-rich glycoprotein increased with a decreasing rate of cell elongation, concomitant with a rise in the degree of arabinosylation of wall-bound hydroxyproline. As cell elongation slowed down, non-cellulosic glucose accumulated, presumably in the form of a β-(1–4)glucan closely associated with cellulose. These findings confirm the notion that the primary cell wall is a highly dynamic structure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00384555
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  • 2
    Electronic Resource
    Electronic Resource
    Cell length, light and14C-labelled indol-3yl-acetic acid transport inPisum satisum L. andPhaseolus vulgaris L (1980)
    Springer
    Planta 149 (1980), S. 327-331 
    Details
    ISSN: 1432-2048
    Keywords: Auxin transport ; Cell length ; Light and auxin transport ; Phaseolus ; Pisum ; Transport (auxin)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The putative auxin-transporting cells of the intact herbaceous dicotyledon are the young, differentiating vascular elements. The length of these cells was found to be considerably greater in dwarf (Meteor) than in tall (Alderman) varieties ofPisum sativum L., and to be greater in etiolated than in light-grown plants ofP. sativum cv Meteor andPhaseolus vulgaris L. cv Mexican Black. Under given light conditions during transport these large differences in cell length did not influence the shapes of the transport profiles or the velocity of transport of14C-labelled indol-3yl-acetic acid (IAA) applied to the apical bud. However, in both etiolated and light-grown bean and dwarf pea plants the velocity of transport in darkness was ca. 25% lower than that in light. Under the same conditions of transport velocities in bean were about twice those observed in the dwarf pea. Exposure to light during transport increased the rate of export of14C from the labelled shoot apex in green dwarf pea plants but not in etiolated plants. The light conditions to which the plants were exposed during growth and transport had little effect on the rates of uptake of IAA from the applied solutions. The results indicate that the velocity of auxin transport is independent of the frequency of cell-to-cell interfaces along the transport pathway and it is suggested that in intact plants auxin transport is entirely symplastic.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00571165
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  • 3
    Electronic Resource
    Electronic Resource
    Studies on ethylene binding by cell-free preparations from cotyledons of Phaseolus vulgaris L. (1980)
    Springer
    Planta 148 (1980), S. 397-406 
    Details
    ISSN: 1432-2048
    Keywords: Ethylene binding ; Hormone binding ; Phaseolus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The preparation is described of a cell-free system from developing cotyledons of Phaseolus vulgaris cv. Canadian Wonder which is capable of binding ethylene. The binding is saturable and the apparent dissociation constant for ethylene is 6.4·10-10 M in solution. The binding site is associated with subcellular particles and treatment with Triton X-100 results in substantial solubilisation of the activity. The kinetics of association and dissociation of the ligand and the binding site are described. The system is heat labile and binding activity is diminished by treatment with some proteolytic enzymes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00388129
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  • 4
    Electronic Resource
    Electronic Resource
    Studies on ethylene binding by cell free preparations from cotyledons of Phaseolus vulgaris L. (1980)
    Springer
    Planta 148 (1980), S. 407-411 
    Details
    ISSN: 1432-2048
    Keywords: Ethylene binding ; Hormone binding ; Phaseolus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Various protein reactive agents such as dithioerythritol, dithiothreitol, mercaptoethanol and p-chloromercuribenzoate inhibit binding of ethylene to cell free preparations of Phaseolus vulgaris L. The effect of the thiols is partially reversed by treatment with diamide; occupation of the binding site by ligand diminishes the inhibition caused by p-chloromercuribenzoate but not that caused by thiols. Growth regulators other than ethylene do not affect binding. Physiologically active structural analogues of ethylene competitively inhibit binding of the growth regulator and their relative effectiveness in the cell free system closely resembles that in developmental processes controlled ethylene.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00388130
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  • 5
    Electronic Resource
    Electronic Resource
    Meiosis and fertility of interspecific hybrids between Phaseolus vulgaris L. and P. acutifolius A. Gray (1980)
    Springer
    Theoretical and applied genetics 57 (1980), S. 59-64 
    Details
    ISSN: 1432-2242
    Keywords: Phaseolus ; Interspecific hybridization ; Meiosis ; Fertility ; Beans
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Meiosis and fertility of interspecific hybrids obtained from reciprocal crosses between Phaseolus vulgaris and P. acutifolius were examined. Bivalents as well as univalents were found at Metaphase I. The majority of the microsporocytes had four or more univalents and the average was 6.3 univalents per cell. The average number of lagging chromosomes at Anaphase I was 2.3 per cell and the most frequent chromosome distribution at late Anaphase I was 10–12. The lower than expected number of lagging chromosomes as compared with the number of univalents at Metaphase I suggests the possible occurrence of precocious separation of bivalents. The male fertility as measured by pollen stainability was 17%, however, the frequency of pollen germination in selfing was 3.5%. Upon selfing of the interspecific hybrids, no dividing embryos were found even though 7 and 26% of the ovules were fertilized at 12 hours and four days after pollination. In backcrosses to P. vulgaris (male), 6 and 20% of the ovules were fertilized and 0 and 4% of the ovules contained dividing embryos at the same sampling times. When P. acutifolius was the male parent, respective values were 8 and 31% for fertilization and 0 and 13% for ovules with dividing embryos. The frequencies of backcross embryos recovered at 14–26 days were in agreement with the frequencies of dividing embryos at four days. The ability to obtain backcross plantlets demonstrates the feasibility to further utilize interspecific hybrids for the improvement of P. vulgaris
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00276402
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  • 6
    Electronic Resource
    Electronic Resource
    Meiosis and fertility of interspecific hybrids betweenPhaseolus vulgaris L. andP. acutifolius A. Gray (1980)
    Springer
    Theoretical and applied genetics 57 (1980), S. 59-64 
    Details
    ISSN: 1432-2242
    Keywords: Phaseolus ; Interspecific hybridization ; Meiosis ; Fertility ; Beans
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Meiosis and fertility of interspecific hybrids obtained from reciprocal crosses betweenPhaseolus vulgaris andP. acutifolius were examined. Bivalents as well as univalents were found at Metaphase I. The majority of the microsporocytes had four or more univalents and the average was 6.3 univalents per cell. The average number of lagging chromosomes at Anaphase I was 2.3 per cell and the most frequent chromosome distribution at late Anaphase I was 10–12. The lower than expected number of lagging chromosomes as compared with the number of univalents at Metaphase I suggests the possible occurrence of precocious separation of bivalents. The male fertility as measured by pollen stainability was 17%, however, the frequency of pollen germination in selfing was 3.5%. Upon selfing of the interspecific hybrids, no dividing embryos were found even though 7 and 26% of the ovules were fertilized at 12 hours and four days after pollination. In backcrosses toP. vulgaris (male), 6 and 20% of the ovules were fertilized and 0 and 4% of the ovules contained dividing embryos at the same sampling times. WhenP. acutifolius was the male parent, respective values were 8 and 31% for fertilization and 0 and 13% for ovules with dividing embryos. The frequencies of backcross embryos recovered at 14–26 days were in agreement with the frequencies of dividing embryos at four days. The ability to obtain backcross plantlets demonstrates the feasibility to further utilize interspecific hybrids for the improvement ofP. vulgaris
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00745030
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  • 7
    Electronic Resource
    Electronic Resource
    Purification of lumicolchicine for use in studies of plant development (1980)
    Springer
    Protoplasma 103 (1980), S. 105-114 
    Details
    ISSN: 1615-6102
    Keywords: Colchicine ; Lumicolchicine ; Microtubules ; Mitosis ; Wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Lumicolchicine was purified by preparative thin-layer chromatography. Tests for purity were ultraviolet absorption spectrophotometry, analytical thin-layer chromatography, and a bioassay using wheat roots. Wheat roots treated for 3 days with 10−3 M lumicolchicine showed no c-mitosis, but had reduced growth compared with controls.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01276669
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  • 8
    Electronic Resource
    Electronic Resource
    pH optima for crop growth (1980)
    Springer
    Plant and soil 54 (1980), S. 339-357 
    Details
    ISSN: 1573-5036
    Keywords: Calcium ; Cassava ; Chemical composition ; Control of solution pH ; Copper ; Flowing solution culture ; French bean ; Ginger ; Hydrogen ion injury ; Magnesium ; Maize ; Manganese ; Nitrogen ; Optimum pH range ; pH ; Plant growth ; Root weight ratio ; Tomato ; Wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Ginger, cassava, maize, wheat, french bean and tomato were grown for periods up to six weeks in continuously flowing nutrient solutions at seven constant pH values ranging from 3.3 to 8.5. All species achieved maximum or near-maximum growth in the pH range 5.5 to 6.5. However, there were substantial differences in the ability of species to grow outside this range. Ginger and cassava were the most tolerant species to low solution pH, while ginger and tomato were the only species to show no yield depression at the highest solution pH. Roots of all species at pH 3.3 and some species at pH 4.0 exhibited symptoms of hydrogen ion injury. In addition, the concentrations of magnesium in the tops of all six species, of nitrogen in the tops of tomato and cassava, and of manganese in the tops of maize at these pH values were inadequate for optimal growth. Growth depression at high solution pH was associated with iron deficiency in maize and wheat and with nitrogen and/or copper deficiency in cassava. The relevance of the present results to crop growth under field conditions is discussed. The complex interplay of plant and soil characteristics militates against precise definition of an optimum pH range for the growth of a particular crop unless the soil is also specified.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02181830
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  • 9
    Electronic Resource
    Electronic Resource
    Free proline accumulation in cereals in relation to salt tolerance (1980)
    Springer
    Plant and soil 57 (1980), S. 167-175 
    Details
    ISSN: 1573-5036
    Keywords: Accumulation ; Barley ; Cations ; Electrical conductivity ; K/Na ratio ; Proline ; Saline water ; Stress ; Tolerance ; Wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract In a micro-plot experiment it was observed that free proline accumulation in barley and wheat crops increased with the salt stress. But in sensitive strains of both the crops it did not accumulate in accordance with the preceding values after their tolerance limit and at this point yield of barley was reduced by 25.8% and wheat by 23.2% over control while significant yield reductions were not observed with tolerant strains. Proline accumulation was also found to be related to tissue K/Na ratio and the critical limits of this ratio were observed between 0.60 and 0.34 for barley and 4.2 and 1.4 for wheat.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02211676
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