Heterogeneity of epidermal cells in relation to nickel accumulation in hyperaccumulator plants belonging to the genus Alyssum L.1

被引：3

作者：

Baklanov I.A. ^{[1
]}

机构：

[1] Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Moscow

来源：

Cell and Tissue Biology | 2011年 / 5卷 / 6期

基金：

俄罗斯基础研究基金会;

关键词：

Alyssum; compartmentalization; epidermis; heterogeneity of cells; hyperaccumulator; nickel; trichomes;

D O I：

10.1134/S1990519X11060034

中图分类号：

学科分类号：

摘要：

Epidermal cells of some plants are able to accumulate high levels of heavy metals (Zn, Ni, Cd). We studied this ability in plants in the genus Alyssum L. distinguished by tolerance to nickel (Ni). It was established that the predominant Ni accumulation occurred in epidermis, whereas in other tissues lower concentrations of the metal were revealed. It was also found that epidermal cells were characterized by heterogeneity in relation to Ni accumulation. The highest metal amount was accumulated in ordinary epidermal cells and in trichomes. Species-specific features of Ni distribution in leaf tissues in Alyssum spp. were shown. The reasons for the heterogeneity of epidermal cells in relation to Ni accumulation were discussed. We have attempted to resolve the contradictions encountered in the literature concerning the distribution and accumulation of Ni in the leaf tissues of plants belonging to the genus Alyssum L. © 2011 Pleiades Publishing, Ltd.

引用

页码：603 / 611

页数：8

共 34 条

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