2020年1月
Effects of enhancing endogenous and exogenous glutathione in roots on cadmium movement in Arabidopsis thaliana
PLANT SCIENCE
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- 巻
- 290
- 号
- 開始ページ
- 110304
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.plantsci.2019.110304
- 出版者・発行元
- ELSEVIER IRELAND LTD
Glutathione (GSH) is a thiol-containing compound involved in many aspects of plant metabolism. In the present study, we investigated how enhancing endogenous and exogenous GSH affects cadmium (Cd) movement and distribution in Arabidopsis plants cultured hydroponically. Transgenic Arabidopsis plants with a strong ability to synthesize GSH in roots were generated by transforming the gene encoding the bifunctional gamma-glutamylcysteine synthetase-glutathione synthetase enzyme from Streptococcus thermophiles (StGCS-GS). Enhancing endogenous and exogenous GSH decreased the Cd translocation ratio in different ways. Only exogenous GSH significantly inhibited Cd translocation from roots to shoots in wild-type and transgenic Arabidopsis plants. Our study demonstrated that GSH mainly functions outside root cells to inhibit Cd translocation from roots to shoots.
- リンク情報
- ID情報
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- DOI : 10.1016/j.plantsci.2019.110304
- ISSN : 0168-9452
- eISSN : 1873-2259
- Web of Science ID : WOS:000501940100029