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Arsenic uptake and speciation in the rootless duckweed Wolffia globosa

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Arsenic uptake and speciation in the rootless duckweed Wolffia globosa. / Zhang, Xin; Zhao, Fang-Jie; Huang, Qing et al.

In: New Phytologist, Vol. 182, No. 2, 2009, p. 421-428.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Zhang, X, Zhao, F-J, Huang, Q, Williams, PN, Sun, G-X & Zhu, Y-G 2009, 'Arsenic uptake and speciation in the rootless duckweed Wolffia globosa', New Phytologist, vol. 182, no. 2, pp. 421-428. https://doi.org/10.1111/j.1469-8137.2008.02758.x

APA

Zhang, X., Zhao, F-J., Huang, Q., Williams, P. N., Sun, G-X., & Zhu, Y-G. (2009). Arsenic uptake and speciation in the rootless duckweed Wolffia globosa. New Phytologist, 182(2), 421-428. https://doi.org/10.1111/j.1469-8137.2008.02758.x

Vancouver

Zhang X, Zhao F-J, Huang Q, Williams PN, Sun G-X, Zhu Y-G. Arsenic uptake and speciation in the rootless duckweed Wolffia globosa. New Phytologist. 2009;182(2):421-428. doi: 10.1111/j.1469-8137.2008.02758.x

Author

Zhang, Xin ; Zhao, Fang-Jie ; Huang, Qing et al. / Arsenic uptake and speciation in the rootless duckweed Wolffia globosa. In: New Phytologist. 2009 ; Vol. 182, No. 2. pp. 421-428.

Bibtex

@article{be5bb2ba690e436bbd543d8d41ceee78,
title = "Arsenic uptake and speciation in the rootless duckweed Wolffia globosa",
abstract = "Duckweeds are a common macrophyte in paddy and aquatic environments. Here, we investigated arsenic (As) accumulation, speciation and tolerance of the rootless duckweed Wolffia globosa and its potential for As phytofiltration. When grown with 1 microm arsenate, W. globosa accumulated two to 10 times more As than four other duckweed or Azolla species tested. W. globosa was able to accumulate > 1000 mg As kg(-1) in frond dry weight (DW), and tolerate up to 400 mg As kg(-1) DW. At the low concentration range, uptake rate was similar for arsenate and arsenite, but at the high concentration range, arsenite was taken up at a faster rate. Arsenite was the predominant As species (c. 90% of the total extractable As) in both arsenate- and arsenite-exposed duckweed. W. globosa was more resistant to external arsenate than arsenite, but showed a similar degree of tolerance internally. W. globosa decreased arsenate in solution rapidly, but also effluxed arsenite. Wolffia globosa is a strong As accumulator and an interesting model plant to study As uptake and metabolism because of the lack of a root-to-frond translocation barrier.",
author = "Xin Zhang and Fang-Jie Zhao and Qing Huang and Williams, {Paul N} and Guo-Xin Sun and Yong-Guan Zhu",
year = "2009",
doi = "10.1111/j.1469-8137.2008.02758.x",
language = "English",
volume = "182",
pages = "421--428",
journal = "New Phytologist",
issn = "0028-646X",
publisher = "Wiley",
number = "2",

}

RIS

TY - JOUR

T1 - Arsenic uptake and speciation in the rootless duckweed Wolffia globosa

AU - Zhang, Xin

AU - Zhao, Fang-Jie

AU - Huang, Qing

AU - Williams, Paul N

AU - Sun, Guo-Xin

AU - Zhu, Yong-Guan

PY - 2009

Y1 - 2009

N2 - Duckweeds are a common macrophyte in paddy and aquatic environments. Here, we investigated arsenic (As) accumulation, speciation and tolerance of the rootless duckweed Wolffia globosa and its potential for As phytofiltration. When grown with 1 microm arsenate, W. globosa accumulated two to 10 times more As than four other duckweed or Azolla species tested. W. globosa was able to accumulate > 1000 mg As kg(-1) in frond dry weight (DW), and tolerate up to 400 mg As kg(-1) DW. At the low concentration range, uptake rate was similar for arsenate and arsenite, but at the high concentration range, arsenite was taken up at a faster rate. Arsenite was the predominant As species (c. 90% of the total extractable As) in both arsenate- and arsenite-exposed duckweed. W. globosa was more resistant to external arsenate than arsenite, but showed a similar degree of tolerance internally. W. globosa decreased arsenate in solution rapidly, but also effluxed arsenite. Wolffia globosa is a strong As accumulator and an interesting model plant to study As uptake and metabolism because of the lack of a root-to-frond translocation barrier.

AB - Duckweeds are a common macrophyte in paddy and aquatic environments. Here, we investigated arsenic (As) accumulation, speciation and tolerance of the rootless duckweed Wolffia globosa and its potential for As phytofiltration. When grown with 1 microm arsenate, W. globosa accumulated two to 10 times more As than four other duckweed or Azolla species tested. W. globosa was able to accumulate > 1000 mg As kg(-1) in frond dry weight (DW), and tolerate up to 400 mg As kg(-1) DW. At the low concentration range, uptake rate was similar for arsenate and arsenite, but at the high concentration range, arsenite was taken up at a faster rate. Arsenite was the predominant As species (c. 90% of the total extractable As) in both arsenate- and arsenite-exposed duckweed. W. globosa was more resistant to external arsenate than arsenite, but showed a similar degree of tolerance internally. W. globosa decreased arsenate in solution rapidly, but also effluxed arsenite. Wolffia globosa is a strong As accumulator and an interesting model plant to study As uptake and metabolism because of the lack of a root-to-frond translocation barrier.

U2 - 10.1111/j.1469-8137.2008.02758.x

DO - 10.1111/j.1469-8137.2008.02758.x

M3 - Journal article

C2 - 19210724

VL - 182

SP - 421

EP - 428

JO - New Phytologist

JF - New Phytologist

SN - 0028-646X

IS - 2

ER -