In vivo phytochelatins and Hg–phytochelatin complexes in Hg-stressed Brassica chinensis L.
文献信息
Liqin Chen, Limin Yang
In vivo phytochelatins (PCs) and their corresponding Hg–PC complexes were characterized using RPLC-ESI-MS/MS in the roots of Brassica chinensis L. under the stress of a mercury cysteine complex (HgCys2) and/or a mercury humic acid complex (Hg–HA). Results indicated that the presence of Cys and/or HA decreased the Hg uptake in both the roots and shoots of B. chinensis but increased the generation of PCs in the roots compared with those where only HgCl2 was in the culture solutions. A series of Hg–PC complexes were synthesized in vitro for predicting the possible Hg–PC formed in vivo in the HgCys2 and/or Hg–HA stressed roots of B. chinensis. The discovery of in vivo oxidized PC2, PC3 and PC4 and their corresponding HgPC2, HgPC3, HgPC4 and Hg2PC4, which were confirmed by their specific isotope distribution, provided definite evidence for understanding the defense and accumulation mechanism of B. chinensis to Hg, in which the induced PCs play an important role not only in Hg detoxification through forming Hg–PC complexes but also for reducing the oxidative stress induced by Hg2+.
相关文献
IF 6.222
Enhanced power performance of an in situ sediment microbial fuel cell with steel-slag as the redox catalyst: I. electricity generationIF 6.367
Retraction: Chemical synthesis and antigenic activity of a phosphatidylinositol mannoside epitope from Mycobacterium tuberculosisIF 6.222
The limits to biocatalysis: pushing the envelopeIF 6.222
Chemoproteomics-based target profiling of sinomenine reveals multiple protein regulators of inflammationIF 6.222
Solventless thermal crosslinked polymer protective layer for high stable lithium metal batteriesIF 6.367
A new neodymium–phosphine compound for supercapacitors with long-term cycling stabilityIF 6.222
Increasing efficiency of perovskite solar cells using low concentrating photovoltaic systemsIF 6.367
Front coverIF 6.843
PEST (political, environmental, social & technical) analysis of the development of the waste-to-energy anaerobic digestion industry in China as a representative for developing countriesIF 6.367
来源期刊
Metallomics
Metallomics publishes cutting-edge investigations aimed at elucidating the identification, distribution, dynamics, role and impact of metals and metalloids in biological systems. Studies that address the “what, where, when, how and why” of these inorganic elements in cells, tissues, organisms, and various environmental niches are welcome, especially those employing multidisciplinary approaches drawn from the analytical, bioinorganic, medicinal, environmental, biophysical, cell biology, plant biology and chemical biology communities. We are particularly interested in articles that enhance our chemical and/or physical understanding of the molecular mechanisms of metal-dependent life processes, and those that probe the common space between metallomics and other ‘omics approaches to uncover new insights into biological processes. Metallomics seeks to position itself at the forefront of those advances in analytical chemistry destined to clarify the enormous complexity of biological systems. As such, we particularly welcome those papers that outline cutting-edge analytical technologies, e.g., in the development and application of powerful new imaging, spectroscopic and mass spectrometric modalities. Work that describes new insights into metal speciation, trafficking and dynamics in complex systems or as a function of microenvironment are also strongly encouraged. Studies that examine the interconnectivity of metal-dependent processes with systems level responses relevant to organismal health or disease are also strongly encouraged, for example those that probe the effect of chemical exposure on metal homeostasis or the impact of metal-based drugs on cellular processes.
推荐供应商
武汉弘德悦欣医药科技有限公司
普雷姆尼茨工业园Infrareal控股有限公司北京朗润时代环保科技有限公司Systec GmbH&Co.KG
元素科学有限公司Excenen Pharmatech Co., Ltd
EcoSynthetix股份有限公司。
印度海湾公司广州观泓生物科技有限公司