Antimony toxicity in the lichen Xanthoria parietina (L.) Th. Fr.

被引：45
|
作者：
Paoli, L. [1 ]
Fiorini, E. [1 ]
Munzi, S. [2 ]
Sorbo, S. [3 ]
Basile, A. [3 ]
Loppi, S. [1 ]
机构：
[1] Univ Siena, Dept Life Sci, I-53100 Siena, Italy
[2] Univ Lisbon, Ctr Environm Biol, P-1749016 Lisbon, Portugal
[3] Univ Naples Federico II, Dept Biol, I-80139 Naples, Italy
来源：
CHEMOSPHERE | 2013年 / 93卷 / 10期
关键词：
Bioaccumulation; Ecophysiology; Membrane lipid peroxidation; Photosynthesis; Ultrastructure; TRACE-ELEMENTS; CHLOROPHYLL FLUORESCENCE; ATMOSPHERIC AEROSOL; ANTIOXIDANT ENZYMES; EPIPHYTIC LICHENS; OXIDATIVE STRESS; CADMIUM; LEAVES; ACCUMULATION; ENVIRONMENT;
D O I：
10.1016/j.chemosphere.2013.07.082
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
In this paper we tested if treating the lichen Xanthoria parietina with Sb-containing solutions causes Sb-bioaccumulation as well as physiological and ultrastructural changes. Total and intracellular antimony content in Sb-treated samples increased progressively with increasing concentration in the treatment solutions. Incubation of X. parietina thalli with Sb at concentrations as low as 0.1 mM caused a decrease in sample viability, measured as intensity of respiratory activity, and damage to cell membranes, expressed in terms of membrane lipid peroxidation, as well as ultrastructural changes such as plasmolysis, impairment of the thylakoid system of the alga and cytoplasmic lipid droplets. The photosynthetic system hardly responded, at least under the tested experimental conditions. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2269 / 2275
页数：7
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