HYSTOLOGICAL-FUNCTIONAL SPECIFITY OF NYMPHAEA ALBA L.VEGETATIVE ORGANS

О. Ye. Puyrko, V. N. Sidorova

Abstract


Nymphaea alba L. belongs to aerohydrophytes and has all typical features of such ecological group. We found out the followings anatomic and functional features which are adaptation to the surplus of water: 1) formation of astrosklereid, which are the mechanical fabrics; 2) presence of large intercells which serve as plant fixation; 3) absence of stomas on the lower side of leaf and submarine organs that alterate the interchange of gases. The mycrochemical ash analysis of plant vegetative organs showed the presence of crystals of strontium, sulfur, potassium, ferrum, calcium, sodium, nitrogen, which vary by accumulation, form, and sizes, in vegetative organs (leaf, root and stem). We proved that quantitative, anatomical, and physiological peculiarities of Nymphaea alba L. vegetative organs uncover the mechanism of adaptation of aerohydrophytes to environment factors. The adaptative mechanisms of plant and their functioning are changed under influence of surplus of water.

Keywords: Nymphaea alba L., vegetative organs, anatomic specificity.


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DOI: http://dx.doi.org/10.15421/20122_28

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