STORAGE, LOCALIZATION AND PHYSIOLOGICAL EFFECT OF METAL IN THE NEW NI HYPERACCUMULATOR ALYSSOIDES UTRICULATA (BRASSICACEAE)

Ultramafic soils, often known as "serpentine" are widely distributed all over the world. These substrates are ecological islands with specialised habitats characterized by extreme soils and microclimatic conditions, and often host peculiar animal and plant communities, including many endemic taxa , the most notable of which are represented by the nickel hyperaccumulator plants.