期刊
GENE
卷 555, 期 2, 页码 159-168出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.gene.2014.10.059
关键词
Arabidopsis; Gene expression; Gene Ontology; Reactive oxygen species; Trichlorophenol
资金
- Shanghai Academy of Agricultural Sciences [Nongkefa 2013(17)]
- Shanghai Municipal Committee of Agriculture [2011-1-8, 2013D-8]
- International Scientific and Technological Cooperation [13440701700]
- Young Foundation of Shanghai Academy of Agricultural Sciences [2012-16]
- National Natural Science Foundation [31071486, 31200212, 31200075, 31200076]
- Shanghai Minhang Science and Technology Committee [2012MH059]
Trichlorophenols, also known as TCPs, are one of the most persistent environmental pollutants. It is a matter of concern as they are toxic and cumulative in soil and water bodies which could lead to serious consequences to the biosphere. How plants respond to this compound has rarely been examined previously. In our study, detailed morphological and physiological responses of Arabidopsis to 2,4,6-trichlorophenol, a representative TCP, were investigated. Seed germination and seedling growth were markedly inhibited by 2,4,6-TCP. Furthermore, we performed gene expression profiling analysis upon 2,4,6-TCP treatment in Arabidopsis and identified 34 transcripts induced and 212 repressed more than four folds. Gene Ontology (GO) analysis showed that these TCP-responsive genes are involved in various biological processes, such as secondary metabolism, biological regulation, response to stimulus and other processes related to growth and development. The activities of two reactive oxygen species-related enzymes (peroxidase and superoxide dismutase) and the content of malondialdehyde were increased significantly after 2,4,6-TCP treatment. Our findings have the potential to provide valuable gene resources and theoretical information for more in-depth analyses of TCPs' response in Arabidopsis thaliana and even other organic pollutants. (C) 2014 Elsevier B.V. All rights reserved.
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