Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Electronic Resource  (12)
  • 1990-1994  (1)
  • 1985-1989  (2)
  • 1980-1984  (6)
  • 1975-1979  (3)
  • 1
    Electronic Resource
    Electronic Resource
    New host records for Puccinia allii Rud. (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 41 (1992), S. 0 
    Details
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Uredinia and telia of Puccinia allii were found on leaves of Allium sphaerocephalon, but uredinia only were found on A. carinatum, A. roseum and Nectaroscordum siculum. Each combination represents a new record for Britain, and N. siculum has not been recorded previously as a host for this fungus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3059.1992.tb02321.x
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Identification and quantitative analysis of phendimetrazine and some of its metabolites in biological fluids (1986)
    Springer
    Monatshefte für Chemie 117 (1986), S. 1047-1055 
    Details
    ISSN: 1434-4475
    Keywords: Amphetamins ; Anorectics ; Antiobesity ; CNS stimulants ; Phendimetrazine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Nach oralen Dosen von Phendimetrazin an Menschen wurde im Harn unverändertes Phendimetrazin, der N-demethylierte Metabolit, Phenmetrazin und das N-Oxid von Phendimetrazin, nicht jedoch N-Hydroxyphenmetrazin gefunden; die Metaboliten wurden mittels TLC und GLC identifiziert. Die Stabilität von Phendimetrazin und dessen Metaboliten wurde in biologischen Flüssigkeiten und in Ether untersucht. Es wurde eine gaschromatographische Methode für die quantitative Bestimmung von Phendimetrazin, seinem N-Oxid und Phenmetrazin in Harn, Plasma und Speichel entwickelt, wobei das N-Oxid vor der Analyse reduziert wurde.
    Notes: Abstract In urine, after oral doses of phendimetrazine to man, were found unchanged drug, the N-demethylated metabolite, phenmetrazine, and the N-oxide of phendimetrazine, but not N-hydroxyphenmetrazine; the metabolites were identified using t.l.c. and g.l.c. The stability of the drug and its metabolites in biological fluids and in ether was studied. A gas chromatographic procedure for the quantitative determination of unchanged drug, its N-oxide and phenmetrazine in urine, plasma and saliva was developed, the N-oxide being reduced before analysis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00811275
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Water droplets in intercellular spaces of barley leaves examined by low-temperature scanning electron microscopy (1985)
    Springer
    Planta 166 (1985), S. 335-340 
    Details
    ISSN: 1432-2048
    Keywords: Apoplast ; Evaporation sites (leaf) ; Intercellular space ; Hordeum (apoplasmic water) ; Leaf (apoplasmic water) ; Water (apoplasmic, leaf)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Low-temperature scanning electron microscopy was used to examine fracture faces in leaf blades taken from well-watered or drought-stressed barley (Hordeum vulgare L. cv. Mazurka) seedlings. The leaf blades were freeze-fixed while hydrated and were examined with or without gold-coating. There were ‘droplets’ (with a smooth surface at the resolution achieved) on the surface of cell walls in leaf blades (0.91 g-1 water content) from well-watered seedlings grown in an environment of 67% relative humidity. These were mainly on the vascular bundle sheath, the guard and subsidiary cells, and on some mesophyll cells around the substomatal cavity and between the stoma and vascular bundle. The droplets occurred, more abundantly, in the same places in seedlings from 100% relative humidity. They occurred on a few guard cells from wilting leaf blades (0.81 g·g-1 water content) and were absent from severely drought-stressed leaf blades (0.15 g·g-1 water content). The droplets sublimed at the same moment as both water which was in leaf cells and water which was allowed to condense (after freeze-fixation) on the wall surface. It is suggested that the droplets are aqueous. Their possible origin and importance is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00401170
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Fibrous and tubular inclusions in four xylariaceous fungi (1976)
    Springer
    Protoplasma 89 (1976), S. 279-290 
    Details
    ISSN: 1615-6102
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Intranuclear and cytoplasmic fibrous inclusions and cytoplasmic tubular inclusions have been studied using electron microscope techniques. The fibrous inclusions are composed of closely packed, rod-like structures. Each rod has an outside diameter of ± 24 nm, a hollow centre and lateral projections along its length. The tubular inclusions occur as densely packed bundles or loose arrays of 10–13 nm diameter tubules which are composed of subunits arranged in a double helical structure. The distribution, origin and possible function of these and similar inclusions is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01275745
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    The ultrastructure of septal pores and associated structures in the ascogenous hyphae and asci ofSordaria humana (1981)
    Springer
    Protoplasma 107 (1981), S. 127-147 
    Details
    ISSN: 1615-6102
    Keywords: Asci ; Ascomycetes ; Ascogenous hyphae ; Croziers ; Intercellular communication ; Septal pores ; Sordaria humana
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Septal pores and associated structures have been studied in ascogenous hyphae, croziers and asci ofSordaria humana by means of electron microscopy of serial and random sections. Pores exhibit variable structures from relatively simple pore caps to complex swollen rims with associated membrane cisternae. The simple types are found at the base of the ascogenous hyphae while the complex forms occur at the apex, in the croziers and in very young, presporulation asci. Post-sporulation asci contain a relatively simple type of pore structure. Cells which subtend the ascogenous hyphae exhibit both open and capped pores in their cross walls. Pore structures may be asymmetric in which case they show greater complexity on the side of the cross wall nearest to the apex or crozier. Membranous components of the complex pores are continuous with the endomembrane systems of the two adjacent cells and thus with the outer membranes of the nuclear envelopes. Membrane continuities may connect prefusion nuclei or fusion nuclei in penultimate cells, with nuclei of the stalk and terminal cells of croziers. Some speculation is presented as to the implication and possible roles of these structures in relation to cell differentiation within the ascogenous hyphae and croziers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01275613
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Uromyces viciae-fabae onVicia faba: Scanning electron microscopy of frozen-hydrated material (1982)
    Springer
    Protoplasma 111 (1982), S. 28-37 
    Details
    ISSN: 1615-6102
    Keywords: Frozen-hydrated ; Low temperature SEM ; Uredium ultrastructure ; Uromyces viciae-fabae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The ultrastructure of uredia, intercellular and intracellular hyphae ofUromyces viciae-fabae onVicia faba has been studied by scanning electron microscopy of frozen-hydrated material. Frozen-hydrated leaves will readily fracture and can be viewed on the cold stage of the microscope at liquid nitrogen temperatures for several hours without visible surface changes occurring. Both fungal and host-plant cells show a high degree of morphological preservation with little or no loss of cell contents and with minimal signs of shrinkage. Intracellular hyphae may be filamentous and branched or short and lobed. They are constricted at the point of entry into the host cell. Intercellular matrix material is well preserved around developing pedicels and urediospores and may act as a lubricant. The technique described is very quick compared with conventional preparatory procedures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01287644
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Ultrastructure of mitosis in the aphid-pathogenic fungusErynia neoaphidis (1984)
    Springer
    Protoplasma 120 (1984), S. 72-83 
    Details
    ISSN: 1615-6102
    Keywords: Fungus ; Mitosis ; Entomophthoraceae ; Erynia neoaphidis ; Ultrastructure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary An account of mitosis in the aphid-pathogenic, entomophthoraceous fungusErynia neoaphidis is presented. The mitotic apparatus is characterized by a closed, intranuclear, polarized spindle. Chromosomes are permanently attached by kinetochore microtubules (kcMTs) to the poles during mitosis. The spindle develops as the spindle pole bodies migrate and separate. At metaphase the eccentric spindle contains only kcMTs and is located in a relatively chromatinfree zone. Paired sister kinetochores are arranged in a broad metaphase plate. During anaphase kcMTs shorten, astral and nonchromosomal microtubules develop and elongate and the interpolar distance increases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01287619
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Ultrastructure and behaviour of the spindle pole body of the aphid-pathogenic fungusErynia neoaphidis (1984)
    Springer
    Protoplasma 120 (1984), S. 61-71 
    Details
    ISSN: 1615-6102
    Keywords: Fungus ; Spindle pole body ; Entomophthoraceae ; Erynia neoaphidis ; Ultrastructure ; Replication
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary A detailed account of the ultrastructure and behaviour of the spindle pole body (SPB) of the entomophthoraceous fungusErynia neoaphidis is presented for the first time. The SPB consists of extranuclear (ENC) and intranuclear (INC) components. The ENC is a “saucepan-shaped” structure which lies in a pocket of the nuclear envelope. It is composed of a forked, fibrillar “handle” and a shallow, cylindrical “pan”. The “pan” has a wall of two layers, both of which are thickened with a regular periodicity so that they appear to be “beaded”. It is postulated that the “pan“ is formed from rough endoplasmic reticulum and that it synthesizes the amorphous, electron-dense material coating the ENC. The INC is a “saucer-shaped”, electron-dense plaque in which the ends of the spindle microtubules terminate. During metaphase, a “clear zone” separates the INC from the nuclear envelope and persists until telophase. The roles of the amorphous, electron-dense material and the “clear zone” as well as the method of SPB replication are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01287618
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Physico-chemical aspects of metabolically induced changes at the basic centre of two anti-emetics; relationship with in vivo membrane penetration (1980)
    Springer
    Pharmacy world & science 2 (1980), S. 253-261 
    Details
    ISSN: 1573-739X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Partition coefficients in three solvent systems (1-octanol/ 0.1N NaOH,n-heptane/0.1N NaOH and toluene/0.1N NaOH), ionisation constants and thin-layer and reverse phase high pressure liquid chromatography retention data were determined for metoclopramide, its mono- and di-N-dealkylated metabolites, and for clebopride and its N-debenzylated metabolic product. Values for the additive-constitutive parameters π, ΔR m andx were calculated for the alkyl substituents at the basic centre of the two drugs, and the results are discussed. The relationship between these physico-chemical parameters and thein vivo membrane penetrating capacity (this capacity was determined using buccal absorption measurements) is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02272989
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    The acetylcholinesterase inhibitory activity of metoclopramide and some of its biotransformation products (1980)
    Springer
    Pharmacy world & science 2 (1980), S. 1121-1127 
    Details
    ISSN: 1573-739X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Ki values were determined for thein vitro acetylcholinesterase inhibitory activity of the anti-emetic metoclopramide, some of its metabolic products and the newly synthesised N-(ethyl)-4-chlorobenzamide (1). Metoclopramide was a moderate inhibitor, 113 times more potent than 1 and 50 times less potent than physostigmine. Metabolic products of N-de-ethylation, N-di-de-ethylation, deamination followed by reduction and amide hydrolysis were increasingly less active as inhibitors. The implications of the present findings are briefly discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02273269
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...