ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
Filter
  • Beta vulgaris  (13)
  • Gas chromatography  (11)
  • Ultrastructure  (7)
  • Springer  (31)
  • American Chemical Society
Sammlung
Schlagwörter
Verlag/Herausgeber
Erscheinungszeitraum
  • 1
    Digitale Medien
    Digitale Medien
    Data correlation in on-line solid-phase extraction-gas chromatography-atomic emission/mass spectrometric detection of unknown microcontaminants (1998)
    Springer
    Chromatographia 48 (1998), S. 273-283 
    Details
    ISSN: 1612-1112
    Schlagwort(e): Gas chromatography ; Atomic emission and MS detection ; Solid-phase extraction ; Aqueous samples
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary A procedure is described for the (non-target) screening of hetero-atom-containing compounds in tap and waste water by correlating data obtained by gas chromatography (GC) using atomic emission (AED) and mass selective (MS) detection. Solid-phase extraction (SPE) was coupled on-line to both GC systems to enable the determination of microcontaminants at the 0.02–1 μg L−1 level in 7–50 mL of aqueous sample. The screening was limited to compounds present in at least one heteroatom-selective GC-AED trace above a predetermined concentration level. These compounds were identified by their partial formulae (AED) and the corresponding mass spectra, which were obtained from the GC-MS chromatogram via the retention index concept. The potential of the approach was demonstrated by the identification of target compounds as well as all unknowns present in tap and waste water above the predetermined threshold of 0.05 μg L−1 (tap water) or 0.5 μg L−1 (waste water).
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02467683
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    On-line coupling of solid-phase extraction and gas chromatography with atomic emission detection for analysis of trace pollutants in aqueous samples (1995)
    Springer
    Chromatographia 40 (1995), S. 119-124 
    Details
    ISSN: 1612-1112
    Schlagwort(e): Gas chromatography ; Atomic emission detection ; Aqueous samples ; Solid-phase extraction ; Organophosphorus pesticides
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary An on-line, solid-phase extraction gas chromatography atomic-emission detection (SPE-GC-AED) system has been set up using an on-column interface to transfer 100 μl of desorbing solvent to the GC part of the system. Analytical characteristics such as recovery, precision and linearity of calibration plots were comparable with those of the off-line combination of SPE-GC-AED using organophosphorus pesticides as test compounds. The fully on-line set-up causes a marked improvement in detection because of the quantitative transfer of the analytes from the SPE module to the GC: detection limits are as low as 5–20 ng l−1 for the analysis of 10 ml raw and spiked surface water samples using the phosphorus channel. Detection levels can be further enhanced by processing up to 100 ml samples. The integrated analytical system is robust. The potential of the on-line set up has been demonstrated for the analysis of surface water and waste water.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02272157
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 3
    Digitale Medien
    Digitale Medien
    Investigations on an interspecific hybrid involving three species of the genus Beta, with special reference to isozyme polymorphism (1986)
    Springer
    Theoretical and applied genetics 73 (1986), S. 261-266 
    Details
    ISSN: 1432-2242
    Schlagwort(e): Beta vulgaris ; Sugar beet ; Beta lomatogona ; Beta procumbens ; Interspecific hybrid ; Isozyme polymorphism
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary A tetraploid (2n=36) interspecific hybrid was obtained involving three species belonging to three different sections of Beta. The hybrid was highly sterile and did not show apomixis. At meiosis, up to nine bivalents were observed, most probably resulting from autosyndesis of the chromosomes of Beta lomatogona. For nine isozyme systems, individual enzyme expression was investigated in the parental species and in the hybrids. No silencing of genes or genomes was observed. In the case of some polymeric enzymes interspecific heteropolymers could be detected.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00289283
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 4
    Digitale Medien
    Digitale Medien
    Molecular characterization of mitochondrial DNA of different subtypes of male-sterile cytoplasms of the sugar beet Beta vulgaris L. (1991)
    Springer
    Theoretical and applied genetics 82 (1991), S. 11-16 
    Details
    ISSN: 1432-2242
    Schlagwort(e): Beta vulgaris ; Cytoplasmic male sterility ; mtDNA ; Restriction fragment patterns ; Filter hybridization
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary Mitochondrial (mt) DNA from eight cytoplasmic male-sterile (cms) lines of sugar beet from different breeding stations was investigated by restriction fragment analysis and Southern hybridization. All cms lines showed similar but not identical restriction and hybridization signal patterns, readily distinguishable from those of fertile (N) cytoplasm. Digestion of the mtDNA with BamHI, EcoRI, SalI, and XhoI revealed distinct differences between the sterile lines, and six subtypes of the S cytoplasm could be distinguished. Differences between the sterile lines were confirmed by hybridization with a $$\overline{\overline {COX}} II$$ gene probe revealing minor, line-specific hybridization signals. The data presented provide evidence for the existence of considerable variation within the only commercially used source of cms in the sugar beet, the Owen's type of cytoplasm.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00231271
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 5
    Digitale Medien
    Digitale Medien
    Monosomic additions in beet (Beta vulgaris) carrying extra chromosomes of B. procumbens (1988)
    Springer
    Theoretical and applied genetics 76 (1988), S. 656-664 
    Details
    ISSN: 1432-2242
    Schlagwort(e): Beta vulgaris ; Beta procumbens ; Alien monosomic additions ; Plant development in vivo ; Development in vitro
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary Alien monosomic additions in beet (Beta vulgaris), each carrying one of the nine chromosomes of B. procumbens, were grown in vivo and in vitro to study the effect of the alien chromosomes on plant development. All additional chromosomes caused a reduction of the growth rate in vivo, which, in one case was so strong that some of the plants died as seedlings. In general, the morphological plant characteristics were not very useful to distinguish the addition types; this could have been the results of the wide variation in the recipient parent. However, some developmental characteristics proved to be highly chromosome-specific; for plants in vivo this was annuality, in combination with early or late flowering. If grown in vitro, chromosome specificity was observed for growth type (rosette or elongated stem), occurrence and rate of vitrification, occurrence and morphology of wound callus, formation of additional meristems on the midribs of leaves, formation of roots and a specific reaction to benzylaminopurine (BAP) the medium. Two chromosome types of B. procumbens caused resistance to the beet cyst nematode.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00303509
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 6
    Digitale Medien
    Digitale Medien
    Inheritance of resistance to beet necrotic yellow vein virus in Beta vulgaris conferred by a second gene for resistance (1999)
    Springer
    Theoretical and applied genetics 99 (1999), S. 740-746 
    Details
    ISSN: 1432-2242
    Schlagwort(e): Key words Beet necrotic yellow vein virus ; Beta vulgaris ; Inheritance ; Resistance genes ; Rhizomania ; STS markers
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract   Rhizomania is a serious disease of sugar beet, caused by beet necrotic yellow vein virus (BNYVV). The disease can only be controlled by the use of resistant cultivars. The accession Holly contains a single dominant gene for resistance, called Rz. The identification of a locus for resistance that differs from Rz would provide possibilities to produce cultivars with multiple resistance to BNYVV. Inheritance of resistance to BNYVV was studied by screening progenies of crosses between resistant plants of the accessions Beta vulgaris subsp. maritima WB42 and B. vulgaris subsp. vulgaris Holly-1–4 or R104. Observed and expected segregation ratios were compared to elucidate whether the resistance genes in the three accessions are alleles or situated on different loci. STS markers, linked to the genes for resistance, were used to study the segregation in more detail. The results demonstrated that the genes for resistance to BNYVV inHolly-1-4 and WB42 are closely linked. The gene for resistance in R104 is at the same locus as in Holly-1-4, and also closely linked to the gene in WB42. As the Holly resistance gene has been named Rz, the name Rz2 is proposed to refer to the resistance gene in WB42. Consequently, the gene Rz should be referred to as Rz1.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s001220051292
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 7
    Digitale Medien
    Digitale Medien
    Monosomic additions in beet (Beta vulgaris) carrying extra chromosomes of Beta procumbens (1988)
    Springer
    Theoretical and applied genetics 76 (1988), S. 577-586 
    Details
    ISSN: 1432-2242
    Schlagwort(e): Beta vulgaris ; Beta procumbens ; Alien monosomic additions ; Isozyme markers ; Chromosome identification
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary Eleven isozyme systems were used to identify the extra chromosomes, originating from Beta procumbens, in progenies of 33 monosomic additions in beet (B. vulgaris). Nine groups of monosomic additions could be distinguished, representing the nine different chromosome types of B. procumbens.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00260912
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 8
    Digitale Medien
    Digitale Medien
    Rapid hybridization-based assays for identification by DNA probes of male-sterile and male-fertile cytoplasms of the sugar beet Beta vulgaris L. (1991)
    Springer
    Theoretical and applied genetics 81 (1991), S. 819-824 
    Details
    ISSN: 1432-2242
    Schlagwort(e): Beta vulgaris ; Cytoplasmic male sterility ; mtDNA probes ; Miniassays
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary Methods are described whereby hybridization of mitochondrial (mt) DNA with different DNA probes can definitely distinguish male-fertile and and male-sterile (cms) cytoplasms of sugar beet Beta vulgaris L. We have developed two types of miniassays. (1) Comparative methods requiring the isolation and restriction of total cellular DNA, hybridization with cloned mtDNA fragments from either fertile or male-sterile cytoplasms, and comparison of the hybridization patterns to the fertile-and sterile-specific patterns of mtDNA of sugar beet for the given mtDNA probe. For these analyses, we routinely used 1 g of plant material to determine the type of cytoplasm. (2) Noncomparative (“plus-minus”) methods requiring neither the isolation of pure DNA nor restriction, electrophoresis, or Southern blotting. Instead, alkaline-SDS plant extracts from as little as 50 mg of plant material were dot-blotted and hybridized with fertile-specific (mitochondrial minicircular DNA) and/or cms-specific probes (consisting of a 2.3-kb mtDNA sequence exclusively occurring in the cms cytoplasm). The assays are simple to perform, give definitive results, are nonde-structive to the plants, and may be used in mass screening of sugar beet populations for hybrid production or in in vitro culture processes.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00224996
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 9
    Digitale Medien
    Digitale Medien
    Isozyme analysis of primary trisomies in beet (Beta vulgaris L.). Genetical characterization and techniques for chromosomal assignment of two enzyme-coding loci: leucine aminopeptidase and glutamate oxaloacetate transaminase (1993)
    Springer
    Theoretical and applied genetics 86 (1993), S. 761-768 
    Details
    ISSN: 1432-2242
    Schlagwort(e): Primary trisomies ; Beet ; Beta vulgaris ; Isozyme polymorphism ; Chromosomal assignment ; Distorted segregation ; Dosage shift
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Segregating families of beet (Beta vulgaris) were used to verify the monofactorial inheritance of two enzyme-coding loci, leucine aminopeptidase (Lap1) and glutamate oxaloacetate transaminase (Got3). With a series of primary trisomies and using three methods to discriminate between the critical trisomic (the locus is situated on the triplicated chromosome) and the non-critical ones, it was possible to allocate the two loci to beet chromosomes I and II, respectively. For the locus Lap1 distorted segregation ratios were estimated, and the incorporation of three alleles into one plant was attempted. In the case of Got3 the measurement of the allele dosage effect after electrophoresis was chosen as the major strategy. The output of laser densitometric scans were subjected to the non-parametrical Wilcoxon-Mann-Whitney test.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00222667
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 10
    Digitale Medien
    Digitale Medien
    The relation between cell proliferation, differentiation and ultrastructural development in rat intestinal epithelium (1976)
    Springer
    Cell & tissue research 174 (1976), S. 183-199 
    Details
    ISSN: 1432-0878
    Schlagwort(e): Rat small intestine ; Differentiation ; Ultrastructure ; Morphometry ; X-irradation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary The ultrastructural development of the principal cells in rat small intestine was studied by morphometric analyses in relation to the exact cell position along crypt and villus. From the bottom to the tip of the crypt, a gradual increase occurred in absolute size of the total cell, the cytoplasm, the terminal web and of nearly all cell organelles. Also, the relative size of the cytoplasm, mitochondria, microvilli and endoplasmic reticulum increased during crypt cell differentiation. No sudden changes in ultrastructure were observed in the so-called “critical decision zone”, normally located halfway up the crypt where the proliferative activity ceases. At the crypt-villous junction a 1.4–3 fold increase in cell size, cytoplasm, terminal web and of most organelles was noted. Expansion of the proliferative cell compartment over the total length of the crypt as occurs during recovery after a low X-irradiation dose (72 h after 400 R) does not affect the normal development of cellular ultrastructure. These findings are discussed in relation to biochemical and cell kinetic data.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00222158
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...