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Kupfer Light red, rather soft and tough heavy metal or element (Cu). The Latin name cuprum is derived from "aes cyprium" (ore from the island of Cyprus), where copper was extracted in ancient times. In nature, it sometimes occurs in pure form, but mostly in minerals such as copper ore, chalcopyrite and copper glance. Copper is a component of blue haemocyanin, which serves as a blood pigment for oxygen transport in many molluscs and arthropods.

Copper is also an essential trace element in all higher organisms as a component of many enzymes. As a nutrient, it is necessary for vine growth in small quantities, as it promotes the formation of chlorophyll, which is important for photosynthesis, and phytoalexins (growth substances). Copper deficiency is morphologically expressed by narrow pale green leaves, reduced shoot growth, shortened internodes and weak root formation.

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Egon Mark

For me, Lexicon from wein.plus is the most comprehensive and best source of information about wine currently available.

Egon Mark
Diplom-Sommelier, Weinakademiker und Weinberater, Volders (Österreich)

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