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  • Triticum aestivum  (21)
  • Wheat  (17)
  • Springer  (35)
  • American Meteorological Society
  • 1980-1984  (35)
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  • Springer  (35)
  • American Meteorological Society
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Year
  • 1
    Electronic Resource
    Electronic Resource
    The effects of managanese and nitrate supply on the levels of phenolics and lignin in young wheat plants (1984)
    Springer
    Plant and soil 81 (1984), S. 437-440 
    Details
    ISSN: 1573-5036
    Keywords: Lignin ; Manganese ; NO 3 − Phenols ; Triticum aestivum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Managanese deficiency (〈 18 μg g−1 Mn) resulted in decreased levels of phenols in wheat shoots and decreased levels of lignins in both roots and shoots. These observed reductions in phenol contents was due largely to a decrease in the alkaline labile phenol component. Levels of nitrate supplied in solution influenced both phenol and lignin production; high nitrate levels (15 mM) resulted in a reduction in phenol and lignin in the shoot but stimulated lignin production in root tissue.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02323058
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  • 2
    Electronic Resource
    Electronic Resource
    Characterization of the multigene family coding for HMW glutenin subunits in wheat using cDNA clones (1983)
    Springer
    Theoretical and applied genetics 67 (1983), S. 87-96 
    Details
    ISSN: 1432-2242
    Keywords: HMW glutenin subunit genes ; cDNA clones ; Tandem DNA repeats ; Chromosomal location ; Gene copy number ; Wheat ; Triticum aestivum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary cDNA clones encoding wheat HMW glutenin subunits have been isolated from a cDNA bank made to poly A+ RNA from developing wheat endosperm var. Chinese Spring. One such clone, pTag 1290, has enabled us to identify the HMW glutenin mRNA species. The DNA sequence of this clone has been partially determined and it contains several tandem DNA repeats. The sequence is discussed in relation to the generation of the HMW glutenin subunit gene family. Analysis of the organization of the HMW glutenin sequences in the wheat genome revealed that the genes encoding HMW glutenin subunits exist in low copy number and are located on the long arm of each of the homoeologous group 1 chromosomes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00303930
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  • 3
    Electronic Resource
    Electronic Resource
    Use of triple-labelled nutrient solution to study the effects of root-infecting fungi on uptake of potassium, calcium and phosphorus by wheat (1982)
    Springer
    Plant and soil 66 (1982), S. 405-410 
    Details
    ISSN: 1573-5036
    Keywords: Gaeumannomyces graminis ; Hydroponics ; Ion uptake ; Radionuclides ; Root pathogens ; Wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Triple-labelled nutrient solution was used to compare the effects of seven root-infecting fungi on uptake of K, Ca and P by wheat. Plants grown in sand or hydroponic culture were transferred to solutions that contained42K,45Ca and32P for 24 h, then dried, ashed and digested in 6M HCl. To distinguish radiation emitted by42K,45Ca and32P plant digests were counted on two channels of a liquid scintillation counter immediately and 7 days later, after the decay of42K radiation. Plants infected byGaeumannomyces graminis took up and translocated less K, Ca and P to their shoots than uninfected plants. Other root-infecting fungi had little effect on uptake of these ions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02183807
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  • 4
    Electronic Resource
    Electronic Resource
    A role for managanese in the resistance of wheat plants to take-all (1984)
    Springer
    Plant and soil 78 (1984), S. 441-444 
    Details
    ISSN: 1573-5036
    Keywords: Gaeumannomyces graminis vartritici ; Hay-die ; Manganese deficiency ; Take-all ; Triticum aestivum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The hypothesis that wheat plants deficient in managenese are predisposed to infection byGaeumannomyces graminis is outlined, and a test of the hypothesis in a soil system is reported. The results supported the hypothesis: wheat plants growing in managanese-deficient soil, although not showing foliar symptoms, were markedly more susceptible to infection; plant analysis confirmed the nutrient status of the plants. A review of the literature on take-all in wheat coupled with the results of our experiments suggests a reinterpretation of the etiology of this disease, since those edaphic factors which promote infection by this organism are those which also render managese unavailable to the host. Managenese nutrition is proposed as a common factor in many of the environmental conditions which influence the host-pathogen balance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02450379
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  • 5
    Electronic Resource
    Electronic Resource
    The Tom Thumb dwarfing gene Rht3 in wheat (1983)
    Springer
    Theoretical and applied genetics 66 (1983), S. 249-256 
    Details
    ISSN: 1432-2242
    Keywords: Wheat ; Dwarfism ; Yield ; Quality
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The effects of the ‘Tom Thumb’ Rht3 dwarfing gene in wheat on plant height, yield components and grain quality in field trials of random inbred lines from two ‘Minister Dwarf’ (Rht3) x rht3 crosses are described. Limited genetic increases in Rht3 plant height, up to 70 cm, were achieved by incorporating genes from the extremely tall variety ‘April Bearded’. Amongst lines from the higher yielding cross, the dwarfing gene did not reduce grain yield but was associated with an increase in grain number of over 25%. Although Rht3 reduced grain protein content by up to 0.8%, breadmaking quality, as measured by SDS sedimentation values and baking tests, was not affected. A controlled environment experiment with near-isogenic Rht3 and rht3 lines indicated that reduced grain size in the dwarfs is a competitive response to the increase in fertility rather than a primary effect of the dwarfing gene.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00251155
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  • 6
    Electronic Resource
    Electronic Resource
    The genetic control of grain esterases in hexaploid wheat (1984)
    Springer
    Theoretical and applied genetics 68 (1984), S. 219-226 
    Details
    ISSN: 1432-2242
    Keywords: Hexaploid genotypes ; Allelic variation ; Esterase ; Isozymes ; Isoelectric focusing ; Wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Analysis of grain esterase isozymes in Chinese Spring aneuploid genotypes by IEF confirmed that genes on the long arms of chromosomes 3A, 3B and 3D (Est-5) control the production of 19 isozymes. Allelic variants have been found for the isozyme pattern controlled by each chromosome. Segregational data involving null alleles and complex phenotypic differences indicate that the wheat grain esterases are encoded by three compound and probably homoeoallelic loci, each capable of producing at least six different isozymes. In a sample of 138 hexaploid genotypes, seven alleles were distinguished.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00266893
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  • 7
    Electronic Resource
    Electronic Resource
    Study on nuclear and cytoplasmic genome expression in wheat by two-dimensional gel electrophoresis (1984)
    Springer
    Theoretical and applied genetics 68 (1984), S. 335-345 
    Details
    ISSN: 1432-2242
    Keywords: Triticum aestivum ; 2D electrophoresis ; Developmental genetics ; Cytoplasmic inheritance ; Genetic regulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Two-dimensional gel electrophoresis of denaturated proteins were performed at five developmental stages or organs (hereafter referred to as stage-organs) on two wheat lines with four different cytoplasms. Five hundred and fifty to 712 reproducible spots were scored depending on the stage-organ. Each stage-organ is unambiguously characterized and several types of control of protein quantity are recorded. Post-translational modifications are hypothetized and may sometimes be stagespecific. Two cytoplasmic patterns are found: one for the euplasmic lines with Triticum aestivum cytoplasm and one for the alloplasmic lines with Aegilops juvenalis, Ae. ventricosa and Ae. kotschyi cytoplasms. Cytoplasmic variation is observed for 28 spots showing position difference, all of which are probably products of the LS gene, and for four spots showing differences for regulation of protein quantity. Nuclear variation between ‘Chinese Spring’ and ‘Selkirk’ is found for 20 allelic differences and for 20 regulatory systems, the latter number being probably underestimated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00267887
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  • 8
    Electronic Resource
    Electronic Resource
    Genetic studies of the crossability of hexaploid wheat with rye and Hordeum bulbosum (1983)
    Springer
    Theoretical and applied genetics 64 (1983), S. 303-307 
    Details
    ISSN: 1432-2242
    Keywords: Crossability ; Wheat ; Rye ; Hordeum bulbosum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Crosses of wheat (Triticum aestivum L.) Group 5 chromosome substitution lines from three different cultivar backgrounds indicate that there may be multiple alleles for reduced crossability with rye (Secale cereale L.) and H. bulbosum on both 5A and 5B chromosomes. No reduction in seed set was observed from any of the 5D substitution lines. It was found that the Kr1 locus on chromosome 5B had a more pronounced affect on both rye and H. bulbosum crossability than the Kr2 locus on chromosome 5A and that the effects of both loci were cumulative. The Kr alleles affected both rye and H. bulbosum crossability in a linear, or additive, fashion. The Kr 2 allele was shown to have little effect on H. bulbosum crossability compared to a significant effect on rye crossability. Tests with tetrasomic and nulli-tetrasomic lines of ‘Chinese Spring’ indicated that the kr allele is ‘null’ or inactive in promoting crossability while the Kr allele is active in reducing crossability to both rye and H. bulbosum. Thus, extra doses of the kr allele do not increase rye or H. bulbosum crossability in the presence of the corresponding Kr allele.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00274168
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  • 9
    Electronic Resource
    Electronic Resource
    Genetic control of α-Amylase production in wheat (1983)
    Springer
    Theoretical and applied genetics 64 (1983), S. 309-316 
    Details
    ISSN: 1432-2242
    Keywords: Wheat ; α-Amylase ; Isozymes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary An analysis of the α-amylase isozymes in GA-treated endosperm of wheat nullisomic-tetrasomics shows that there is more variation at the α-Amy-1 and α-Amy-2 homoeoallelic loci than was previously thought. Among the 16 isozymes produced by genes on the group 7 chromosomes, most could be definitely established as products of a single homoeoallele. Inter-varietal allelic differences would be expected at such loci and clear variation was found in isozymes produced by chromosomes 6B and 7B. The latter allele, α-Amy-B2b carried by the variety ‘Hope’, was used to locate the enzyme structural gene within chromosome 7B relative to the centromere and five other gene markers. The nature of the α-Amy-B2b phenotype and the rare non-parental isozyme patterns found among the recombinant lines indicates that the locus is large and compound, probably involving some degree of intra-locus gene duplication.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00274170
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  • 10
    Electronic Resource
    Electronic Resource
    An evaluation of mitochondrial heterosis and in vitro mitochondrial complementation in wheat, barley and maize (1981)
    Springer
    Theoretical and applied genetics 59 (1981), S. 153-160 
    Details
    ISSN: 1432-2242
    Keywords: Mitochondrial heterosis ; Mitochondrial complementation ; Triticum aestivum ; Hordeum vulgare ; Zea mays
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Two families each of wheat (Triticum aestivum L.), barley (Hordeum vulgare L.) and maize (Zea mays L.) were studied for mitochondrial heterosis and in vitro mitochondrial complementation. Inbred parents and their hybrids were compared for seedling heights and rate of oxygen uptake by the whole tissue to find out if the hybrids showed greater growth and respiratory activity at the seedling stage. Further comparisons were made by isolating mitochondria from the seedling tissues and measuring their ADP∶0 ratio, respiratory control ratio and cytochrome c oxidase activity for mitochondrial heterosis. Mixtures of parental mitochondria were similarly compared with parental and hybrid mitochondria for in vitro mitochondrial complementation. No evidence for mitochondrial heterosis or in vitro mitochondrial complementation was found, nor any correlation between the different mitochondrial parameters, seedling heights or rates of oxygen uptake by seedling tissue. The suggested use of mitochondrial heterosis and in vitro mitochondrial complementation for plant breeding is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00264969
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