期刊
CHEMOSPHERE
卷 93, 期 10, 页码 2585-2592出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2013.09.081
关键词
Bisphenol A; Arabidopsis thaliana; Green/blue light photoreceptors; Germination; Leaf differentiation; Root development
资金
- Specialized Research Fund for the Doctoral Program of Higher Education [20120111110024]
- Fundamental Research Funds for the Central Universities [2012HGCX0003, 2012HGZY0021]
- National Key Technologies RD Programme [2012BAD07B01]
- Funds for Huangshan Professorship of Hefei University of Technology
Bisphenol A (BPA) is a well-known environmental toxic substance, which exerts unfavorable effects through endocrine disruptor (ER)-dependent and ER-independent mechanisms to threaten ecological systems seriously. BPA may also interact with other environmental factors, such as light and heavy metals, to have a synergetic effect in plants. However, there is little data concerning the toxic effect of BPA on the primary producers-plants and its possible interaction with light-dependent response. Here, the effects of BPA on germination, fresh weight, tap root length, and leaf differentiation were studied in Arabidopsis thaliana under different parts of light spectrum (dark, red, yellow, green, blue, and white light). Our results showed that low-dose BPA (1.0, 5.0 mu M) caused an increase in the fresh weight, the tap root length and the lateral root formation of A. thaliana seedlings, while high-dose BPA (10.0, 25.0 mu M) show an inhibition effect in a dose-dependent manner. Unlike karrikins, the effects of BPA on germination fresh weight and tap roots length under various light conditions are similar, which imply that BPA has no notable role in priming light response in germination and early seedling growth in A. thaliana. Meanwhile, BPA exposure influences the differentiation of A. thaliana leaf blade significantly in a light-dependent manner with little to no effect in dark and clear effect under red illumination. (C) 2013 Elsevier Ltd. All rights reserved.
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