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Micromorphology of Relict Hydrophytes from the Lower Amur Region
Inland Water Biology ( IF 0.9 ) Pub Date : 2021-01-26 , DOI: 10.1134/s1995082920040112
D. Ju. Tsyrenova

Abstract

The micromophology of relict hydrophytes Brasenia schreberi J. F. Gmel. (Cabombaceae), Nuphar japonica DC. (Nymphaeaceae), and Nelumbo komarovii Grossh. (Nelumbonaceae) has been studied based on material from the Lower Amur region. Detailed descriptions of the anatomical structure of leaves in contact with the air are given. A common feature was the dorsoventrality of the leaf blade and the atactostelia of leaf petioles. The development of a system of diffuse intercellular spaces and aerenchyma and a reduction of xylem in the studied species are effective adaptations to the aquatic habitat. It was assumed that the studied species was preserved in the south of the Russian Far East due to maximum protection during the winter. Compensatory adaptations in the microstructure of the leaf are the development of a multifunctional parenchyma, an increased content of secondary metabolites and hydrophobic compounds, and reinforced leaves.



中文翻译:

下阿穆尔河地区遗迹水生植物的微观形态

摘要

遗留水生植物Brasenia schreberi JF Gmel的微观语言学。(菊科),Nuphar粳稻DC。(Nymphaeaceae)和Nelumbo komarovii格罗斯 (Nelumbonaceae)已基于下阿穆尔河地区的材料进行了研究。给出了与空气接触的叶子的解剖结构的详细描述。一个共同的特征是叶片的背腹和叶柄的无act。在所研究的物种中,扩散的细胞间空间和通气组织系统的发展以及木质部的减少是对水生生境的有效适应。据推测,由于冬季的最大保护,所研究的物种被保存在俄罗斯远东地区的南部。叶片微结构的补偿适应性是多功能薄壁组织的发展,次生代谢产物和疏水性化合物含量的增加以及强化叶片。

更新日期:2021-01-28
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