Skip Navigation



JXB Advance Access published online on July 2, 2004
Journal of Experimental Botany, doi:10.1093/jxb/erh205
© 2004 by Oxford University Press
This Article
Right arrow FREE Full Text (PDF) Freely available
Right arrow All Versions of this Article:
55/403/1707    most recent
erh205v1
Right arrow E-letters: Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when E-letters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Disclaimer
Google Scholar
Right arrow Articles by Liu, W-J.
Right arrow Articles by Smith, S. E.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Liu, W-J.
Right arrow Articles by Smith, S. E.
Agricola
Right arrow Articles by Liu, W-J.
Right arrow Articles by Smith, S. E.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Received December 30, 2003
Accepted May 13, 2004

RESEARCH PAPER

Do iron plaque and genotypes affect arsenate uptake and translocation by rice seedlings (Oryza sativa L.) grown in solution culture?

W-J. Liu 1, Y-G. Zhu 2*, F. A. Smith 3, S. E. Smith 3

1 Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, China; College of Natural Resources and Environment, Hebei Agricultural University, Baoding, Hebei Province, China
2 Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, China
3 Soil and Land Systems, School of Environmental Sciences, The University of Adelaide, Adelaide, South Australia 5005, Australia

* To whom correspondence should be addressed. E-mail: ygzhu{at}mail.rcees.ac.cn.


  Abstract

The effects of Fe concentrations in the pretreatment solution on the induction of plaque and the differences between genotypes on arsenate uptake by and translocation within rice seedlings grown in nutrient solution in the greenhouse were investigated. After iron plaque on rice roots was induced in solutions containing 20, 40, 60, 80, and 100 mg Fe2+ l-1, seedlings were transplanted into nutrient solution with 0.5 mg As l-1. The formation of iron plaque was clearly visible as a reddish coating on the root surface after 12 h induction. Fe2+ concentrations in the pretreatment solution and 0.5 mg As l-1 in the treatment solutions did not significantly affect rice growth. There was a significant correlation between the concentrations of Fe and As in iron plaque on the root surface for the three genotypes. About 75-89% of total As was concentrated in iron plaque (DCB-extracts). There were no significant differences in As concentrations in the roots between the three genotypes; however, As concentrations in shoots differed significantly between them. Arsenic concentrations in shoots were positively correlated with iron concentrations in the shoots. The results suggest that iron plaque may act as a ‘buffer’ for As in the rhizosphere.

Keywords: Arsenic translocation; arsenic uptake; iron plaque; rice genotypes.
Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 Agron. J.Home page
H. Belefant-Miller and T. Beaty
Distribution of Arsenic and Other Minerals in Rice Plants Affected by Natural Straighthead
Agron. J., November 1, 2007; 99(6): 1675 - 1681.
[Abstract] [Full Text] [PDF]

Home page
 ANN BOT (LOND)Home page
R. F. CHEN, R. F. SHEN, P. GU, X. Y. DONG, C. W. DU, and J. F. MA
Response of Rice (Oryza sativa) with Root Surface Iron Plaque Under Aluminium Stress
Ann. Bot., August 1, 2006; 98(2): 389 - 395.
[Abstract] [Full Text] [PDF]


Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.