The role of iron plaque in transport and distribution of chromium by rice seedlings

X.-Z. Yu; M.-R. Lu; X.-H. Zhang

doi:10.1556/0806.45.2017.040

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Cereal Research Communications

Volume/Issue:: Volume 45: Issue 4

The role of iron plaque in transport and distribution of chromium by rice seedlings

Authors:

X.-Z. Yu

X.-Z. Yu Guilin University of Technology, Guilin 541004, People’s Republic of China

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M.-R. Lu

M.-R. Lu Guilin University of Technology, Guilin 541004, People’s Republic of China

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X.-H. Zhang

X.-H. Zhang Guilin University of Technology, Guilin 541004, People’s Republic of China

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Pages:: 598–609

Online Publication Date:: Dec 2017

Publication Date:: 01 Dec 2017

Article Category:: Research Article

DOI:: https://doi.org/10.1556/0806.45.2017.040

Keywords:: chromium; translocation; iron plaque; rice; DCB extract

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Hydroponic studies were conducted to investigate the role of iron plaque on transport and distribution of chromium (Cr) by rice seedlings. Microscopical observations indicate that iron plaque developed quickly at the root surface of rice seedlings, but the distribution of iron plaque was more intense near root base and less towards root tip. Results showed that rice seedlings exposed to Cr(III) depicted significantly higher capacity for Cr accumulation in plant tissues than Cr(VI) in the presence of iron plaque. However, transport of Cr within plant cells was more evident in Cr(VI) treatment with iron plaque than Cr(III) treatment. Results also showed that there are significant impact on transport of K, Mn and Zn in rice seedlings treated with Cr(VI) in the presence of iron plaque, while significant effect on transport of Mn and Zn were observed in Cr(III)-treated rice seedlings. Results from detached root test provide additional evidence to confirm the presence of iron plaque, that had different impact on Cr uptake when Cr(VI) or Cr(III) was supplied.

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Cereal Research Communications A Quarterly of the Cereal Research Non-Profit Ltd. Company

Print ISSN:: 0133-3720

Online ISSN:: 1788-9170

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Cereal Research Communications
Language	English
Size	A4
Year of Foundation	1973
Volumes per Year	1
Issues per Year	4
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0133-3720 (Print)
ISSN	1788-9170 (Online)