2002年12月
Possible roles of phytochelatins and glutathione metabolism in cadmium tolerance in chickpea roots
JOURNAL OF PLANT RESEARCH
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- ,
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- 巻
- 115
- 号
- 1122
- 開始ページ
- 429
- 終了ページ
- 437
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1007/s10265-002-0055-5
- 出版者・発行元
- SPRINGER-VERLAG TOKYO
The possible roles of phytochelatin (PC) and glutathione (GSH) in the heavy metal detoxification in plants were examined using two varieties (CSG-8962 and C-235) of chickpea (Cicer arietinum L.). The seedlings were grown for 5 days and the roots were treated with 0-20 muM CdSO4 for 3 days. The CSG-8962 seedlings exhibited more Cd-tolerant characteristics than did the C-235, where the roots, rather than shoots, suffered from more toxic effects by Cd. Both the seedlings synthesized the large amounts of PCs and homo-phytochelatins (hPCs) in roots, but only a little in shoots in response to Cd. The Cd treatments also caused a marked increase in the levels of GSH and cysteine in both the root and shoot tissues, suggesting that Cd may activate the GSH biosynthesis and, hence, enhance PC synthesis in the plants. Such a Cd-sensitive PC synthesis in chickpea plants does not explain the difference in Cd sensitivity in the varieties, but can be used as a biochemical indicator for Cd contamination in various environments. In the chickpea plants, possible PC-dependent and independent mechanisms for Cd tolerance are discussed.
- リンク情報
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- DOI
- https://doi.org/10.1007/s10265-002-0055-5
- CiNii Articles
- http://ci.nii.ac.jp/naid/10019238834
- PubMed
- https://www.ncbi.nlm.nih.gov/pubmed/12579446
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000180239000004&DestApp=WOS_CPL
- ID情報
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- DOI : 10.1007/s10265-002-0055-5
- ISSN : 0918-9440
- CiNii Articles ID : 10019238834
- PubMed ID : 12579446
- Web of Science ID : WOS:000180239000004