Arsenate tolerance mechanism of Oenothera odorata from a mine population involves the induction of phytochelatins in roots

Dae Yeon Kim; Hyun Park; Sang Hwan Lee; Namin Koo; Jeong Gyu Kim

doi:10.1016/j.chemosphere.2008.12.021

Arsenate tolerance mechanism of Oenothera odorata from a mine population involves the induction of phytochelatins in roots

Dae Yeon Kim, Hyun Park, Sang Hwan Lee, Namin Koo, Jeong Gyu Kim

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

We investigated the arsenate tolerance mechanisms of Oenothera odorata by comparing two populations [i.e., one population from the mine site (MP) and the other population from an uncontaminated site (UP)] via the exposure of hydroponic solution containing arsenate (i.e., 0-50 μM). The MP plants were significantly more tolerant to arsenate than UP plants. The UP plants accumulated more As in their shoots and roots than did the MP plants. The UP plants translocated up to 21 μg g^-1 of As into shoots, whereas MP plants translocated less As (up to 4.5 μg g^-1) to shoots over all treatments. The results of lipid peroxidation indicated that MP plants were less damaged by oxidative stress than were UP plants. Phytochelatin (PC) content correlated linearly with root As concentration in the MP (i.e., [PCs]_root = 1.69 × [As]_root, r² = 0.945) and UP (i.e., [PCs]_root = 0.89 × [As]_root, r² = 0.979) plants. This relationship means that increased PC to As ratio may be associated with increased tolerance. Our results suggest that PC induction in roots plays a critical role in As tolerance of O. odorata.

Original language	English
Pages (from-to)	505-512
Number of pages	8
Journal	Chemosphere
Volume	75
Issue number	4
DOIs	https://doi.org/10.1016/j.chemosphere.2008.12.021
Publication status	Published - 2009 Apr

Bibliographical note

Funding Information:
This research was financially supported by grant as “Eco-technopia 21 project” (2006-04003-0009-0) to J.G. Kim from the Korea Ministry of Environment and partly by a grant from Korea University.

Keywords

Arsenate tolerance
Lipid peroxidation
Mine soil
Oenothera odorata
Phytochelatins

ASJC Scopus subject areas

General Chemistry
Public Health, Environmental and Occupational Health
Pollution
Health, Toxicology and Mutagenesis
Environmental Engineering
Environmental Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.chemosphere.2008.12.021

Cite this

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title = "Arsenate tolerance mechanism of Oenothera odorata from a mine population involves the induction of phytochelatins in roots",

abstract = "We investigated the arsenate tolerance mechanisms of Oenothera odorata by comparing two populations [i.e., one population from the mine site (MP) and the other population from an uncontaminated site (UP)] via the exposure of hydroponic solution containing arsenate (i.e., 0-50 μM). The MP plants were significantly more tolerant to arsenate than UP plants. The UP plants accumulated more As in their shoots and roots than did the MP plants. The UP plants translocated up to 21 μg g-1 of As into shoots, whereas MP plants translocated less As (up to 4.5 μg g-1) to shoots over all treatments. The results of lipid peroxidation indicated that MP plants were less damaged by oxidative stress than were UP plants. Phytochelatin (PC) content correlated linearly with root As concentration in the MP (i.e., [PCs]root = 1.69 × [As]root, r2 = 0.945) and UP (i.e., [PCs]root = 0.89 × [As]root, r2 = 0.979) plants. This relationship means that increased PC to As ratio may be associated with increased tolerance. Our results suggest that PC induction in roots plays a critical role in As tolerance of O. odorata.",

keywords = "Arsenate tolerance, Lipid peroxidation, Mine soil, Oenothera odorata, Phytochelatins",

author = "Kim, {Dae Yeon} and Hyun Park and Lee, {Sang Hwan} and Namin Koo and Kim, {Jeong Gyu}",

note = "Funding Information: This research was financially supported by grant as “Eco-technopia 21 project” (2006-04003-0009-0) to J.G. Kim from the Korea Ministry of Environment and partly by a grant from Korea University.",

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AU - Kim, Dae Yeon

AU - Park, Hyun

AU - Lee, Sang Hwan

AU - Koo, Namin

AU - Kim, Jeong Gyu

N1 - Funding Information: This research was financially supported by grant as “Eco-technopia 21 project” (2006-04003-0009-0) to J.G. Kim from the Korea Ministry of Environment and partly by a grant from Korea University.

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N2 - We investigated the arsenate tolerance mechanisms of Oenothera odorata by comparing two populations [i.e., one population from the mine site (MP) and the other population from an uncontaminated site (UP)] via the exposure of hydroponic solution containing arsenate (i.e., 0-50 μM). The MP plants were significantly more tolerant to arsenate than UP plants. The UP plants accumulated more As in their shoots and roots than did the MP plants. The UP plants translocated up to 21 μg g-1 of As into shoots, whereas MP plants translocated less As (up to 4.5 μg g-1) to shoots over all treatments. The results of lipid peroxidation indicated that MP plants were less damaged by oxidative stress than were UP plants. Phytochelatin (PC) content correlated linearly with root As concentration in the MP (i.e., [PCs]root = 1.69 × [As]root, r2 = 0.945) and UP (i.e., [PCs]root = 0.89 × [As]root, r2 = 0.979) plants. This relationship means that increased PC to As ratio may be associated with increased tolerance. Our results suggest that PC induction in roots plays a critical role in As tolerance of O. odorata.

AB - We investigated the arsenate tolerance mechanisms of Oenothera odorata by comparing two populations [i.e., one population from the mine site (MP) and the other population from an uncontaminated site (UP)] via the exposure of hydroponic solution containing arsenate (i.e., 0-50 μM). The MP plants were significantly more tolerant to arsenate than UP plants. The UP plants accumulated more As in their shoots and roots than did the MP plants. The UP plants translocated up to 21 μg g-1 of As into shoots, whereas MP plants translocated less As (up to 4.5 μg g-1) to shoots over all treatments. The results of lipid peroxidation indicated that MP plants were less damaged by oxidative stress than were UP plants. Phytochelatin (PC) content correlated linearly with root As concentration in the MP (i.e., [PCs]root = 1.69 × [As]root, r2 = 0.945) and UP (i.e., [PCs]root = 0.89 × [As]root, r2 = 0.979) plants. This relationship means that increased PC to As ratio may be associated with increased tolerance. Our results suggest that PC induction in roots plays a critical role in As tolerance of O. odorata.

KW - Arsenate tolerance

KW - Lipid peroxidation

KW - Mine soil

KW - Oenothera odorata

KW - Phytochelatins

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ER -

Arsenate tolerance mechanism of Oenothera odorata from a mine population involves the induction of phytochelatins in roots

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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