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Copper-induced oxidative stress in the chlorophycean microalga Chlorella vulgaris: response of the antioxidant system.
J Plant Physiol. 2004 May; 161(5):591-7.JP

Abstract

A concentration dependent increase in lipid peroxidation, carotenoid content and activity of superoxide dismutase was observed in the green microalga Chlorella vulgaris following copper exposure. In contrast, activities of catalase, ascorbate peroxidase and glutathione reductase, and the cellular GSH, ascorbate and K+ pool depicted a reverse trend. However, a significant rise in intracellular proline content was also evident in copper supplemented cultures. Though this study depicted the malfunction of the major antioxidant system of C. vulgaris under copper stress the test organism was found to survive and grow even at 3.0 microg mL(-1) of Cu treatment (32% growth). Further study is needed to establish the role of proline in metal toxicity regulation.

Authors+Show Affiliations

Mallick N
Agricultural and Food Engineering Department, Indian Institute of Technology, Kharagpur-721302, India. nm@agfe.iitkgp.ernet.in

MeSH

Ascorbate PeroxidasesCarotenoidsCatalaseChlorellaCopperCulture MediaGlutathione ReductaseHydrogen PeroxideLipid PeroxidationOxidative StressPeroxidasesProlineSuperoxide Dismutase

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15202716

Citation

Mallick, Nirupama. "Copper-induced Oxidative Stress in the Chlorophycean Microalga Chlorella Vulgaris: Response of the Antioxidant System." Journal of Plant Physiology, vol. 161, no. 5, 2004, pp. 591-7.
Mallick N. Copper-induced oxidative stress in the chlorophycean microalga Chlorella vulgaris: response of the antioxidant system. J Plant Physiol. 2004;161(5):591-7.
Mallick, N. (2004). Copper-induced oxidative stress in the chlorophycean microalga Chlorella vulgaris: response of the antioxidant system. Journal of Plant Physiology, 161(5), 591-7.
Mallick N. Copper-induced Oxidative Stress in the Chlorophycean Microalga Chlorella Vulgaris: Response of the Antioxidant System. J Plant Physiol. 2004;161(5):591-7. PubMed PMID: 15202716.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Copper-induced oxidative stress in the chlorophycean microalga Chlorella vulgaris: response of the antioxidant system. A1 - Mallick,Nirupama, PY - 2004/6/19/pubmed PY - 2004/8/31/medline PY - 2004/6/19/entrez SP - 591 EP - 7 JF - Journal of plant physiology JO - J Plant Physiol VL - 161 IS - 5 N2 - A concentration dependent increase in lipid peroxidation, carotenoid content and activity of superoxide dismutase was observed in the green microalga Chlorella vulgaris following copper exposure. In contrast, activities of catalase, ascorbate peroxidase and glutathione reductase, and the cellular GSH, ascorbate and K+ pool depicted a reverse trend. However, a significant rise in intracellular proline content was also evident in copper supplemented cultures. Though this study depicted the malfunction of the major antioxidant system of C. vulgaris under copper stress the test organism was found to survive and grow even at 3.0 microg mL(-1) of Cu treatment (32% growth). Further study is needed to establish the role of proline in metal toxicity regulation. SN - 0176-1617 UR - https://www.unboundmedicine.com/medline/citation/15202716/Copper_induced_oxidative_stress_in_the_chlorophycean_microalga_Chlorella_vulgaris:_response_of_the_antioxidant_system_ DB - PRIME DP - Unbound Medicine ER -