Abstract
In plants, guttation, especially if carried out by the so‐called ‘epidermal hydathodes’, eliminates water and, possibly, minerals. This process is quite conspicuous in nettles, as these plants usually grow on rich saline soils. The present research on the Italian taxa of Urtica points out both the morphology and the arrangement of the structures which excrete water in the liquid state. These structures have been tested by specific histochemical assays, carried out on their secretions, and especially by careful observation of the nuclear structure, which indicates accurately enough whether or not water is eliminated actively. All nettles examined are well provided with structures involved with the elimination of liquid water.
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Schedule a callMore From: Plant Biosystems - An International Journal Dealing with all Aspects of Plant Biology
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