Epidermis leaf structural responses of some aquatic plants to constant water environment

• Autorzy: Nedukha O.M.

Warianty tytułu

PL

Zmiany w ultrastrukturze epidermy liści w odpowiedzi na stałe zanurzenie u wybranych roślin wodnych

• Języki publikacji: EN

Abstrakty

EN

Submersed leaves of Myriophyllum spicatum, Potamogeton perfoliatus, and P. pectinatus were studied by the method of the transmission electron microscopy. Ultrastructural analysis of leaf epidermis of the three hygrophyte species showed the presence of some peculiarities of leaf epidermis, in particular, the presence of chloroplasts with very well developed grana structure, three-layered structure of outer cell wall, thin cuticle with pores. The distinctive peculiarities of the cell ultrastructure of the studied samples were also revealed in the epidermis. The size of pore in leaf cuticle of submerged plants depends on the plant species. There were the quantitative and qualitative signs of substructures of chloroplasts, thickness of outer cell wall and its cuticle layer, the size and density of cuticle pores. Structural features of the submersed leaf epidermal cells in different species demonstrate their role in the submersed phenotypical plasticity and in natural adaptation of plants to the constant water environment.

PL

Zanurzone całkowicie w wodzie liście higrofitów Myriophyllum spicatum, Potamogeton perfoliatus oraz P. pectinatus analizowano z wykorzystaniem mikroskopu transmisyjnego. Analiza ultrastruktury epidermy liści trzech badanych gatunków wykazała charakterystyczne jej właściwości, w szczególności obecność chloroplastów z prawidłowo wykształconymi granami, ściany komórkowej o trójwarstwowej strukturze oraz cienkiej kutikuli z porami. Analiza statystyczna pokazała istotne różnice w strukturze i liczbie chloroplastów, w grubości i gęstości zewnętrznej warstwy ściany komórkowej oraz kutikuli jej pokrywającej, jak również w wielkości i zagęszczeniu otworów w kutikuli. Wielkość porów w kutikuli liści uwarunkowana była genotypowo. Zmiany struktury epidermy liści całkowicie zanurzonych w wodzie, wynikają najprawdopodobniej z naturalnej adaptacji fenotypowej badanych gatunków higrofitów do zachodzących zmian w środowisku.

Słowa kluczowe

EN

epidermis; leaf; structural response; aquatic plant; water environment zob.aquatic environment; aquatic environment; submerged leaf; ultrastructure

• Wydawca: -
• Czasopismo: Zeszyty Problemowe Postępów Nauk Rolniczych
• Rocznik: 2010
• Tom: 545
• Opis fizyczny: p.169-178,fig.,ref.

Twórcy

autor

Nedukha O.M.

• Department of Cell Biology and Anatomy, Institute of Botany, Tereschenkivska St.2, 01004 Kiev, Ukraine

Bibliografia

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