Responses to Cadmium in Early-Diverging Streptophytes (Charophytes and Bryophytes): Current Views and Potential Applications

被引：17

作者：

Bellini, Erika ^{[1
]}

Betti, Camilla ^{[2
]}

Sanita di Toppi, Luigi ^{[1
]}

机构：

[1] Univ Pisa, Dept Biol, I-56126 Pisa, Italy

[2] Univ Perugia, Dept Med, I-06132 Perugia, Italy

来源：

PLANTS-BASEL | 2021年 / 10卷 / 04期

关键词：

biomonitoring; bryophytes; charophytes; glutathione; heavy metals; phytochelatins; phytoremediation; MOSS FONTINALIS-ANTIPYRETICA; MODEL SYSTEM MICRASTERIAS; HEAVY-METALS; PHYTOCHELATIN SYNTHASE; PHYSCOMITRELLA-PATENS; OXIDATIVE STRESS; LAND PLANTS; CELL-DEATH; ULTRASTRUCTURAL-CHANGES; GAMMA-GLUTAMYLCYSTEINE;

D O I：

10.3390/plants10040770

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Several transition metals are essential for plant growth and development, as they are involved in various fundamental metabolic functions. By contrast, cadmium (Cd) is a metal that can prove extremely toxic for plants and other organisms in a dose-dependent manner. Charophytes and bryophytes are early-diverging streptophytes widely employed for biomonitoring purposes, as they are able to cope with high concentrations of toxic metal(loid)s without showing any apparent heavy damage. In this review, we will deal with different mechanisms that charophytes and bryophytes have evolved to respond to Cd at a cellular level. Particular attention will be addressed to strategies involving Cd vacuolar sequestration and cell wall immobilization, focusing on specific mechanisms that help achieve detoxification. Understanding the effects of metal(loid) pollution and accumulation on the morpho-physiological traits of charophytes and bryophytes can be in fact fundamental for optimizing their use as phytomonitors and/or phytoremediators.

引用

页数：18

共 173 条

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