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  • 1
    Electronic Resource
    Electronic Resource
    Rheumatoid factors in psoriatic arthropathy and in Waaler-Rose negative rheumatoid arthritis (1984)
    Springer
    Rheumatology international 4 (1984), S. 115-117 
    Details
    ISSN: 1437-160X
    Keywords: Rheumatoid factor isotypes ; Immunoassay ; Rheumatoid arthritis ; Psoriatic arthropathy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Serum levels of IgG, IgA and IgM rheumatoid factor (IgG RF, IgA RF and IgM RF) were determined by means of the diffusion-in-gel enzyme-linked immunosorbent assay (DIG-ELISA) in 42 Waaler-Rose negative patients with psoriatic arthropathy (PsA) type 1 (arthritis with involvement of distal interphalangeal joints) and type 3 (polyarthritis of rheumatoid type) according to the criteria of Moll and Wright as well as in 53 patients with Waaler-Rose negative rheumatoid arthritis (RA). Elevated levels of RF were found in 22% of patients with PsA type 3 and 45% of patients with Waaler-Rose negative RA. In contrast, none of the patients with PsA type 1 had detectable amounts of RF. It is suggested that the presence of IgG, IgA or IgM RF in patients having psoriasis in conjunction with inflammatory polyarthritis indicates the RA nature of the joint disease and should be considered as exclusion criterion for the diagnosis of PsA.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00541179
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Pollination ofPlectranthus vestitus (Lamiaceae) by trap-lining hovering bees in Madagascar (1985)
    Springer
    Plant systematics and evolution 150 (1985), S. 223-236 
    Details
    ISSN: 1615-6110
    Keywords: Angiosperms ; Lamiaceae ; Plectranthus ; P. vestitus ; Pollination ; melittophily ; hovering bees ; Flora of madagascar
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract In a primary forest on the Central Plateau of MadagascarPlectranthus vestitus (Lamiaceae) was principally pollinated by the beePachymelus limbatus (Hymenoptera, Anthophoridae). A species ofStylogaster (Diptera, Conopidae) acted as a co-pollinator. Flower — pollinator interactions are described. The bee performed pollination while hovering, a flower-visit lasting onlyc. 0.3 seconds. Floral features such as shape and size of the corolla tube, and the lack of a landing place suggest specialization to hovering anthophorid beepollinators. Floral biology and pollination in the genusPlectranthus are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00984198
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    “Ixoroid” secondary pollen presentation and pollination by small moths in the Malagasy treeletIxora platythyrsa (Rubiaceae) (1990)
    Springer
    Plant systematics and evolution 170 (1990), S. 161-175 
    Details
    ISSN: 1615-6110
    Keywords: Angiosperms ; Rubiaceae ; Ixora ; I. platythyrsa ; Moth-pollination ; secondary pollen presentation ; Flora of Madagascar
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The pollination biology ofIxora platythyrsa (Rubiaceae) was studied in NW. Madagascar. The plant displayed cream-yellow, nocturnally fragrant, nectariferous, tubular and strongly protandrous flowers. These had an “ixoroid” secondary pollen presentation mechanism: prior to anthesis, anthers exhausted their pollen onto unripe stylar heads. From this position pollen of male-stage flowers later adhered to primarily the probosces of small visiting nocturnal noctuid and geometrid moths. — Pollen was subsequently raked off moths' probosces by receptive, copiously papillose stigmas of female-stage flowers. Principal pollination adaptation was probably to the noctuid moth subfam.Sarrothripinae.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00937701
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    Paper (German National Licenses)
    Fulltext
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