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Superoxide Dismutase, Catalase, and α-Tocopherol Content of Stored Potato Tubers
Open accessAbstract
Activated oxygen or oxygen free radical mediated damage to plants has been established or implicated in many plant stress situations. The extent of activated oxygen damage to potato (Solanum tuberosum L.) tubers during low temperature storage and long-term storage is not known. Quantitation of oxygen free radical mediated damage in plant tissues is difficult. However, it is comparatively easy to quantitate endogenous antioxidants, which detoxify potentially damaging forms of activated oxygen. Three tuber antioxidants, superoxide dismutase, catalase, and alpha-tocopherol were assayed from four potato cultivars stored at 3 degrees C and 9 degrees C for 40 weeks. Tubers stored at 3 degrees C demonstrated increased superoxide dismutase activities (up to 72%) compared to tubers stored at 9 degrees C. Time dependent increases in the levels of superoxide dismutase, catalase, and alpha-tocopherol occurred during the course of the 40 week storage. The possible relationship between these increases in antioxidants and the rate of activated oxygen production in the tubers is discussed.
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Cites
DNA damage and oxygen radical toxicity
Imlay, J. A., & Linn, S. (1988) · Science · doi:10.1126/science.3287616 · Cited by 1,974
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Metadata
- Authors
- Spychalla, J. P., & Desborough, S. L.
- Venue
- Plant Physiology
- Publisher
- Oxford University Press (OUP)
- Published
- 1990-11-01
- Volume
- 94
- Issue
- 3
- Pages
- 1214-1218
- ISSN
- 0032-0889 (ISSN-L)
- 1532-2548
- OpenAlex
- W1999541720
- Cited by
- 200
- References
- 1
- FWCI
- 2.77
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Spychalla, J. P., & Desborough, S. L. (1990). Superoxide Dismutase, Catalase, and α-Tocopherol Content of Stored Potato Tubers. Plant Physiology. https://doi.org/10.1104/pp.94.3.1214
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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