The DOI matches its Crossref record; 42 of the 42 references it cites were found in a registry or an index.
Degradation of Oxidized Proteins by Autophagy during Oxidative Stress in Arabidopsis
Open accessAbstract
Upon encountering oxidative stress, proteins are oxidized extensively by highly reactive and toxic reactive oxidative species, and these damaged, oxidized proteins need to be degraded rapidly and effectively. There are two major proteolytic systems for bulk degradation in eukaryotes, the proteasome and vacuolar autophagy. In mammalian cells, the 20S proteasome and a specific type of vacuolar autophagy, chaperone-mediated autophagy, are involved in the degradation of oxidized proteins in mild oxidative stress. However, little is known about how cells remove oxidized proteins when under severe oxidative stress. Using two macroautophagy markers, monodansylcadaverine and green fluorescent protein-AtATG8e, we here show that application of hydrogen peroxide or the reactive oxidative species inducer methyl viologen can induce macroautophagy in Arabidopsis (Arabidopsis thaliana) plants. Macroautophagy-defective RNAi-AtATG18a transgenic plants are more sensitive to methyl viologen treatment than wild-type plants and accumulate a higher level of oxidized proteins due to a lower degradation rate. In the presence of a vacuolar H+-ATPase inhibitor, concanamycin A, oxidized proteins were detected in the vacuole of wild-type root cells but not RNAi-AtATG18a root cells. Together, our results indicate that autophagy is involved in degrading oxidized proteins under oxidative stress conditions in Arabidopsis.
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Cites
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Cited by
Regulation of Mammalian Autophagy in Physiology and Pathophysiology
Ravikumar, B., Sarkar, S., Davies, J. E., Futter, M., Garcia-Arencibia, M., Green-Thompson, Z. W., Jimenez-Sanchez, M., Korolchuk, V. I., Lichtenberg, M., Luo, S., et al. (2010) · Physiological Reviews · doi:10.1152/physrev.00030.2009 · Cited by 1,727
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ROS, mitochondria and the regulation of autophagy
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Pisoschi, A. M., Pop, A., Iordache, F., Stanca, L., Predoi, G., & Serban, A. I. (2021) · European Journal of Medicinal Chemistry · doi:10.1016/j.ejmech.2020.112891 · Cited by 816
Autophagy: Pathways for Self-Eating in Plant Cells
Liu, Y., & Bassham, D. C. (2012) · Annual Review of Plant Biology · doi:10.1146/annurev-arplant-042811-105441 · Cited by 600
Self-citation
Metadata
- Authors
- Xiong, Y., Contento, A. L., Nguyen, P. Q., & Bassham, D. C.
- Venue
- Plant Physiology
- Publisher
- Oxford University Press (OUP)
- Published
- 2006-11-10
- Volume
- 143
- Issue
- 1
- Pages
- 291-299
- ISSN
- 0032-0889 (ISSN-L)
- 1532-2548
- OpenAlex
- W2024591380
- Cited by
- 464
- References
- 42
- FWCI
- 9.96
- Type
- journal article
- Language
- en
- Open access
- hybrid
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