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水生生物学期刊
SJR: 0.227 SNIP: 0.575 CiteScore™: 0.24

ISSN 打印: 0018-8166
ISSN 在线: 1943-5991

水生生物学期刊

DOI: 10.1615/HydrobJ.v55.i3.10
pages 3-13

Peculiarities of Growth and Surface Microstructure of Vegetative and Reproductive Organs of Aquatic Fern Salvinia nutans

I. V. Kosakivska
Institute of Botany National Academy of Sciences of Ukraine Kyiv, Ukraine
L. M. Babenko
N.G. Kholodny Institute of Botany of the NAS of Ukraine, Tereshchenkovskaya Str., Kiev 01004, Ukraine
M. M. Shcherbatiuk
Institute of Botany National Academy of Sciences of Ukraine Kyiv, Ukraine
O. V. Vasheka
Taras Shevchenko National University Kyiv, Ukraine

ABSTRACT

The peculiarities of growth and development of water fern Salvinia natans (L.) All., the surface microstructure of vegetative and reproductive organs was studied using the scanning electron microscopy. Its existence at the water and air interface is ensured by the specific microstructure of floating fronds. Abaxial surface of floating and submerged fronds has thin cell walls of the epidermis and numerous filamentary outgrowths in epidermal cells. Sporocarp membrane structure contributes to the annual summer-green phenorhythm, promotes mega-and microsporangia submerging to the bottom in autumn and their rising to the water surface in spring.


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