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Influences of phosphorus starvation on OsACR2.1 expression and arsenic metabolism in rice seedlings

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Influences of phosphorus starvation on OsACR2.1 expression and arsenic metabolism in rice seedlings. / Wang, Li-Hong ; Duan, Gui-Lan; Williams, Paul et al.
In: Plant and Soil, Vol. 313, No. 1-2, 2008, p. 129-139.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

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Wang LH, Duan GL, Williams P, Zhu YG. Influences of phosphorus starvation on OsACR2.1 expression and arsenic metabolism in rice seedlings. Plant and Soil. 2008;313(1-2):129-139. doi: 10.1007/s11104-008-9685-2

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Wang, Li-Hong ; Duan, Gui-Lan ; Williams, Paul et al. / Influences of phosphorus starvation on OsACR2.1 expression and arsenic metabolism in rice seedlings. In: Plant and Soil. 2008 ; Vol. 313, No. 1-2. pp. 129-139.

Bibtex

@article{3028327802374a1ca4292fba1edf5ac5,
title = "Influences of phosphorus starvation on OsACR2.1 expression and arsenic metabolism in rice seedlings",
abstract = "The effects of phosphorus (P) status on arsenate reductase gene (OsACR2.1) expression, arsenate reductase activity, hydrogen peroxide (H2O2) content, and arsenic (As) species in rice seedlings which were exposed to arsenate after −P or +P pretreatments were investigated in a series of hydroponic experiments. OsACR2.1 expression increased significantly with decreasing internal P concentrations; more than 2-fold and 10-fold increases were found after P starvation for 30 h and 14 days, respectively. OsACR2.1 expression exhibited a significant positive correlation with internal root H2O2 accumulation, which increased upon P starvation or exposure to H2O2 without P starvation. Characterization of internal and effluxed As species showed the predominant form of As was arsenate in P-starved rice root, which contrasted with the +P pretreated plants. Additionally, more As was effluxed from P-starved rice roots than from non-starved roots. In summary, an interesting relationship was observed between P-starvation induced H2O2 and OsACR2.1 gene expression. However, the up-regulation of OsACR2.1 did not increase arsenate reduction in P-starved rice seedlings when exposed to arsenate.",
author = "Li-Hong Wang and Gui-Lan Duan and Paul Williams and Yong-Guan Zhu",
year = "2008",
doi = "10.1007/s11104-008-9685-2",
language = "English",
volume = "313",
pages = "129--139",
journal = "Plant and Soil",
issn = "0032-079X",
publisher = "Springer International Publishing AG",
number = "1-2",

}

RIS

TY - JOUR

T1 - Influences of phosphorus starvation on OsACR2.1 expression and arsenic metabolism in rice seedlings

AU - Wang, Li-Hong

AU - Duan, Gui-Lan

AU - Williams, Paul

AU - Zhu, Yong-Guan

PY - 2008

Y1 - 2008

N2 - The effects of phosphorus (P) status on arsenate reductase gene (OsACR2.1) expression, arsenate reductase activity, hydrogen peroxide (H2O2) content, and arsenic (As) species in rice seedlings which were exposed to arsenate after −P or +P pretreatments were investigated in a series of hydroponic experiments. OsACR2.1 expression increased significantly with decreasing internal P concentrations; more than 2-fold and 10-fold increases were found after P starvation for 30 h and 14 days, respectively. OsACR2.1 expression exhibited a significant positive correlation with internal root H2O2 accumulation, which increased upon P starvation or exposure to H2O2 without P starvation. Characterization of internal and effluxed As species showed the predominant form of As was arsenate in P-starved rice root, which contrasted with the +P pretreated plants. Additionally, more As was effluxed from P-starved rice roots than from non-starved roots. In summary, an interesting relationship was observed between P-starvation induced H2O2 and OsACR2.1 gene expression. However, the up-regulation of OsACR2.1 did not increase arsenate reduction in P-starved rice seedlings when exposed to arsenate.

AB - The effects of phosphorus (P) status on arsenate reductase gene (OsACR2.1) expression, arsenate reductase activity, hydrogen peroxide (H2O2) content, and arsenic (As) species in rice seedlings which were exposed to arsenate after −P or +P pretreatments were investigated in a series of hydroponic experiments. OsACR2.1 expression increased significantly with decreasing internal P concentrations; more than 2-fold and 10-fold increases were found after P starvation for 30 h and 14 days, respectively. OsACR2.1 expression exhibited a significant positive correlation with internal root H2O2 accumulation, which increased upon P starvation or exposure to H2O2 without P starvation. Characterization of internal and effluxed As species showed the predominant form of As was arsenate in P-starved rice root, which contrasted with the +P pretreated plants. Additionally, more As was effluxed from P-starved rice roots than from non-starved roots. In summary, an interesting relationship was observed between P-starvation induced H2O2 and OsACR2.1 gene expression. However, the up-regulation of OsACR2.1 did not increase arsenate reduction in P-starved rice seedlings when exposed to arsenate.

U2 - 10.1007/s11104-008-9685-2

DO - 10.1007/s11104-008-9685-2

M3 - Journal article

VL - 313

SP - 129

EP - 139

JO - Plant and Soil

JF - Plant and Soil

SN - 0032-079X

IS - 1-2

ER -