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Cited by 256

The DOI matches its Crossref record; 61 of the 61 references it cites were found in a registry or an index.

Glycolate Oxidase Modulates Reactive Oxygen Species–Mediated Signal Transduction during Nonhost Resistance in Nicotiana benthamiana and Arabidopsis

Open access
Rojas, Clemencia M., Senthil-Kumar, Muthappa, Wang, Keri, Ryu, Choong-Min, Kaundal, Amita, Mysore, Kirankumar S.·2012·The Plant Cell

Abstract

In contrast to gene-for-gene disease resistance, nonhost resistance governs defense responses to a broad range of potential pathogen species. To identify specific genes involved in the signal transduction cascade associated with nonhost disease resistance, we used a virus-induced gene-silencing screen in Nicotiana benthamiana, and identified the peroxisomal enzyme glycolate oxidase (GOX) as an essential component of nonhost resistance. GOX-silenced N. benthamiana and Arabidopsis thaliana GOX T-DNA insertion mutants are compromised for nonhost resistance. Moreover, Arabidopsis gox mutants have lower H2O2 accumulation, reduced callose deposition, and reduced electrolyte leakage upon inoculation with hypersensitive response–causing nonhost pathogens. Arabidopsis gox mutants were not affected in NADPH oxidase activity, and silencing of a gene encoding NADPH oxidase (Respiratory burst oxidase homolog) in the gox mutants did not further increase susceptibility to nonhost pathogens, suggesting that GOX functions independently from NADPH oxidase. In the two gox mutants examined (haox2 and gox3), the expression of several defense-related genes upon nonhost pathogen inoculation was decreased compared with wild-type plants. Here we show that GOX is an alternative source for the production of H2O2 during both gene-for-gene and nonhost resistance responses.

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Metadata

Authors
Rojas, C. M., Senthil-Kumar, M., Wang, K., Ryu, C.-M., Kaundal, A., & Mysore, K. S.
Venue
The Plant Cell
Published
2012-01-01
Volume
24
Issue
1
Pages
336-352
ISSN
  • 1040-4651 (ISSN-L)
  • 1532-298X
OpenAlex
W2102476539
Cited by
256
References
61
FWCI
25.73
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Glycolate Oxidase Modulates Reactive Oxygen Species–Mediated Signal Transduction during Nonhost Resistance in Nicotiana benthamiana and Arabidopsis. https://app.cochat.ai/papers/10.1105/tpc.111.093245
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Rojas, C. M., Senthil-Kumar, M., Wang, K., Ryu, C.-M., Kaundal, A., & Mysore, K. S. (2012). Glycolate Oxidase Modulates Reactive Oxygen Species–Mediated Signal Transduction during Nonhost Resistance in Nicotiana benthamiana and Arabidopsis. The Plant Cell. https://doi.org/10.1105/tpc.111.093245

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