Zusammenfassung Im Rahmen einer Masterarbeit sollte untersucht werden, warum der Baumstreifen in ausgewachsenen Elstar-Anlagen wesentlich weniger Aufwuchs aufweist als bei anderen Apfelsorten auf gleichen Unterlage am Standort. Daher wurde die Vegetation von ‘Elstar’-Anlagen im Vergleich zu drei 150 Vegetationsaufnahmen an Terminen einjährigen Untersuchungen Campus Klein-Altendorf bonitiert. Da...

A NUMBER of references to experiments conducted with isolated chloroplasts are to be found in the literature. Englemann [1881] detected the evolution of oxygen by isolated chloroplasts and Ewart [1896] observed that they maintained their activity for some time after removal from the cell. Chloroplasts have been isolated from Stellaria media by Hill [1937] and from the leaves of the tomato plant...

We investigated the value of patch testing with dandelion (Compositae) extract in addition to sesquiterpene lactone (SL) mix in selected patients. After we detected a case of contact erythema multiforme after patch testing with dandelion and common chickweed (Caryophyllaceae), additional testing with common chickweed extract was performed. A total of 235 adults with a mean age of 52.3 years wer...

The High Arctic winter is expected to be altered through ongoing and future climate change. Winter precipitation and snow depth are projected to increase and melt out dates change accordingly. Also, snow cover and depth will play an important role in protecting plant canopy from increasingly more frequent extreme winter warming events. Flower production of many Arctic plants is dependent on mel...

The outer surfaces of land plants and animals are characterized by an epidermis, which may produce an exocytoskeletal ‘cuticle’ or epidermal cytoskeleton that plays a protective role. Various components and structures are utilized by different organisms for this purpose. For example, the major structural components of the plant cuticle, which was originally isolated as a transparent thin film f...