Reduction of the toxic effect of mercurium chloride by chelating effect of Psidium brownianum Mart. ex DC.

被引：9
|
作者：
Leite, Nadghia F. [1 ]
Sobral-Souza, Celestina E. [1 ]
Albuquerque, Rosimeire S. [1 ]
Pinho, Antonio I. [1 ]
Cunha, Francisco A. B. [1 ]
Coutinho, Henrique D. M. [1 ]
机构：
[1] Univ Reg Cariri, Lab Microbiol & Biol Mol, Dept Quim Biol, BR-63105000 Crato, CE, Brazil
来源：
INTERNATIONAL BIODETERIORATION & BIODEGRADATION | 2017年 / 119卷
关键词：
Chelating effect; Cytoprotection; Psidium brownianum; PHENOLIC ANTIOXIDANTS; ASSAY; POWER;
D O I：
10.1016/j.ibiod.2016.09.032
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
Mercury is a heavy metal that does not present any biological function and is considered toxic since it offers great environmental contamination risks to human beings. Psidium brawnianum is a plant found in the town of Araripe, in the Ceara State of Brazil, and is commonly known as "araca de veado" guava tree. The current study has the aim to determine the cytoprotective and metal chelating effect of P. brownianum extract. The results show that the tested HgCl2 concentrations damage the germination and development of Lactuta sativa (lettuce) seeds. However, when sub-allelopathic concentrations (128 pg/mL) of the extract are used in association with HgCl2, a cytoprotective effect can be observed in assayed bacterial and plant models which correlated to metal chelation by phyrocompounds from the extract. Thus, the current study shows that this plant may be an interesting source of products against the heavy metal toxicity problem and contamination. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：538 / 541
页数：4
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