ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

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
  • 1
    Electronic Resource
    Electronic Resource
    Transfer of a marine DNA virus fromEctocarpus toFeldmannia (Ectocarpales, Phaeophyceae): aberrant symptoms and restitution of the host (1993)
    Springer
    Protoplasma 175 (1993), S. 121-125 
    Details
    ISSN: 1615-6102
    Keywords: Ectocarpus ; Feldmannia ; Phaeophyceae ; DNA-virus, marine ; Intergeneric gene transfer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The marine brown algaEctocarpus siliculosus is invaded by a polyhedric virus, whose genome consists of circular, double-stranded DNA. In laboratory experiments this virus can infect a different host species,Feldmannia simplex. InfectedFeldmannia plants show severe somatic malformations. However, no functional virus particles are formed. SuchFeldmannia plants recover to resume a normal, symptom-free appearance. This result raises the possibility of intergeneric gene transfer in the natural habitat.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01385009
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Two-loop relevant parts ofD-dimensional massive scalar one-loop integrals (1993)
    Springer
    The European physical journal 57 (1993), S. 605-613 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The calculation of two-loop Feynman integrals within the dimensional regularization scheme requires the knowledge of scalar one-loop integrals up to the linear term inD-4. We give the corresponding explicit expressions in terms of polylogarithms for the general one-, two-and three-point function and for a special case of the fourpoint function needed for vertex corrections. Our results are valid in all kinematical regions for real masses and momenta.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01561479
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Virus infections in three marine brown algae: Feldmannia irregularis, F. simplex, and Ectocarpus siliculosus (1993)
    Springer
    Hydrobiologia 260-261 (1993), S. 37-44 
    Details
    ISSN: 1573-5117
    Keywords: Virus infection ; marine ; Phaeophyceae ; Feldmannia ; Ectocarpus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Culture studies with healthy and virus-infected isolates of Ectocarpus siliculosus, Feldmannia simplex and F. irregularis gave the following results: Virus particles are produced in deformed reproductive organs (sporangia or gametangia) of the hosts and are released into the surrounding seawater. Their infective potential is lost after several days of storage under laboratory conditions. New infections occur when gametes or spores of the host get in contact with virus particles. The virus genome enters all cells of the developing new plant via mitosis. Virus expression is variable, and in many cases the viability of the host is not impaired. Infected host plants may be partly fertile and pass the infection to their daughter plants. Meiosis of the host can eliminate the virus genome and generate healthy progeny. The genome of the Ectocarpus virus consists of dsDNA. Meiotic segregation patterns suggest an intimate association between virus genome and host chromosomes. An extra-generic host range has been demonstrated for the Ectocarpus virus. Field observations suggest that virus infections in ectocarpalean algae occur on all coasts of the world, and many or all Ectocarpus and Feldmannia populations are subject to contact with virus genomes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00049001
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Deep-water macroalgae from the Canary Islands: new records and biogeographical relationships (1993)
    Springer
    Helgoland marine research 47 (1993), S. 125-143 
    Details
    ISSN: 1438-3888
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Due to the geographical location and paleobiogeography of the Canary Islands, the seaweed flora contains macroalgae with different distributional patterns. In this contribution, the biogeographical relations of several new records of deep-water macroalgae recently collected around the Canarian archipelago are discussed. These areBryopsidella neglecta (Berthold) Rietema,Discosporangium mesarthrocarpum (Meneghini) Hauck,Hincksia onslowensis (Amsler et Kapraun) P. C. Silva,Syringoderma floridana Henry,Peyssonnelia harveyana J. Agardh,Cryptonemia seminervis (C. Agardh) J. Agardh,Botryocladia wynnei Ballantine,Gloiocladia blomquistii (Searles) R. E. Norris,Halichrysis peltata (W. R. Taylor) P. Huvé et H. Huvé,Leptofauchea brasiliensis Joly, andSarcodiotheca divaricata W. R. Taylor. These new records, especially those in the Florideophyceae, support the strong affinity of the Canary Islands seaweed flora with the warm-temperate Mediterranean-Atlantic region. Some species are recorded for the first time from the east coast of the Atlantic Ocean, enhancing the biogeographic relations of the Canarian marine flora with that of the western Atlantic regions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02430354
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    facet.materialart.
    Unknown
    Two-loop relevant parts ofD-dimensional massive scalar one-loop integrals (1993)
    Springer
    Details
    Publication Date: 1993-12-01
    Print ISSN: 0170-9739
    Electronic ISSN: 1431-5858
    Topics: Physics
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...