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  1. No Access

    Article

    Long-term responses of the green-algal lichen Parmelia caperata to natural CO2 enrichment

    Acclimation to elevated CO2 was investigated in Parmelia caperata originating from the vicinity of a natural CO2 spring, where the average daytime CO2 concentration was 729 ± 39 μmol mol−1 dry air. Thalli showed...

    L. Balaguer, E. Manrique, A. de los Rios, C. Ascaso, K. Palmqvist, M. Fordham… in Oecologia (1999)

  2. No Access

    Article

    The weathering action of saxicolous lichens in maritime Antarctica

    Xanthoria elegans (Link) Th Fr. and Lecidea lapicida (Ach.) were studied on volcanic andesite, and Rhizocarpon geographicum (L.) DC. and Bacidia stipata Lamb on a volcanigenic sediment, using light microscopy, i...

    C. Ascaso, L. G. Sancho, C. Rodriguez-Pascual in Polar Biology (1990)

  3. No Access

    Article

    Ultrastructural changes in the pyrenoid of the lichenParmelia sulcata stored under controlled conditions

    Observations have been made on ultrastructural changes in pyrenoids of the algal cells in the lichenParmelia sulcata subjected to a range of controlled desiccation and rehydration regimes. Weaker staining of part...

    D. H. Brown, C. Ascaso, S. Rapsch in Protoplasma (1987)