Reactive Oxygen Intermediates Mediate a Systemic Signal Network in the Establishment of Plant Immunity

Alvarez, María Elena; Pennell, Roger I.; Meijer, Per-Johan; Ishikawa, Atsushi; Dixon, Richard A.; Lamb, Chris

doi:10.1016/s0092-8674(00)81405-1

Cited by 1,050 publications

(704 citation statements)

References 38 publications

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“…To neutralize these potentially toxic compounds, ROI scavengers (such as the antioxidants catalase, superoxide dismutase and ascorbate peroxidase) are activated, thereby creating a shift toward reducing conditions in the plant cell [51][52][53]. Except for a single report [54], however, systemic activation of SAR in non-infected tissue has been associated neither with enhanced levels of ROI, nor with increases in antioxidant levels. In addition, Mou et al…”

Section: Resultsmentioning

confidence: 99%

NPR1: the spider in the web of induced resistance signaling pathways

Pieterse¹,

Loon²

2004

Current Opinion in Plant Biology

408

290

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Section: Resultsmentioning

confidence: 99%

NPR1: the spider in the web of induced resistance signaling pathways

Pieterse¹,

Loon²

2004

Current Opinion in Plant Biology

408

290

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“…For example, in response to pathogen attack plant cells utilize a burst of superoxide and H 2 O 2 to induce defensive measures (the so called hypersensitive response) that lead to a collapse of challenged plant cells and the formation of a restricted lesion (Levine et al, 1994). Furthermore, ROS are good candidates for second messengers that travel to distant sites in the plant resulting in the acquisition of systemic immunity to pathogen attack (Alvarez et al, 1998). Mammalian phagocytic cells employ an O 2 7´-generating plasma membrane NADPH-dependent oxidase capable of producing large amounts of ROS required for host defenses against microorganisms (Segal and Shatwell, 1997).…”

Section: Introductionmentioning

confidence: 99%

Redox control of AP-1-like factors in yeast and beyond

2001

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Cells have evolved complex and e cient strategies for dealing with variable and often-harsh environments. A key aspect of these stress responses is the transcriptional activation of genes encoding defense and repair proteins. In yeast members of the AP-1 family of proteins are required for the transcriptional response to oxidative stress. This sub-family of AP-1 (called yAP-1) proteins are sensors of the redox-state of the cell and are activated directly by oxidative stress conditions. yAP-1 proteins are bZIP-containing factors that share homology to the mammalian AP-1 factor complex and bind to very similar DNA sequence sites. The generation of reactive oxygen species and the resulting potential for oxidative stress is common to all aerobically growing organisms. Furthermore, many of the features of this response appear to be evolutionarily conserved and consequently the study of model organisms, such as yeast, will have widespread utility. The important structural features of these factors, signaling pathways controlling their activity and the nature of the target genes they control will be discussed. Oncogene (2001) 20, 2336 ± 2346.

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“…The Ca 2+ signal and kinase activity as well as reactive oxygen intermediates (ROIs) play important roles in plant HR (Alvarez et al, 1998;Torres et al, 2006;Ma and Berkowitz, 2007). To determine the relationship between Ca 2+ influx and kinase activity and response of the HSRE element to PBZ induction, we performed analyses by using a calcium signaling blocker and kinase activity inhibitors.…”

Section: Hypersensitive Response Is Involved In the Immune Response Tmentioning

confidence: 99%

Synthetic promoters consisting of defined cis-acting elements link multiple signaling pathways to probenazole-inducible system

Zhu

Gao

Yang

et al. 2015

J. Zhejiang Univ. Sci. B

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Probenazole (3-allyloxy-1,2-benzisothiazole-1,1-dioxide, PBZ), the active component of Oryzemate, could induce systemic acquired resistance (SAR) in plants through the induction of salicylic acid (SA) biosynthesis. As a widely used chemical inducer, PBZ is a good prospect for establishing a new chemical-inducible system. We first designed artificially synthetic promoters with tandem copies of a single type of cis-element (SARE, JERE, GCC, GST1, HSRE, and W-box) that could mediate the expression of the β-glucuronidase (GUS) reporter gene in plants upon PBZ treatment. Then we combined different types of elements in order to improve inducibility in the PBZ-inducible system. On the other hand, we were surprised to find that the cis-elements, which are responsive to jasmonic acid (JA) and ethylene, also responded to PBZ, implying that SA, JA, and ethylene pathways also would play important roles in PBZ's action. Further analysis demonstrated that PBZ also induced early events of innate immunity via a signaling pathway in which Ca 2+ influx and mitogen-activated protein kinase (MAPK) activity were involved. We constructed synthesized artificial promoters to establish a PBZ chemical-inducible system, and preliminarily explored SA, JA, ethylene, calcium, and MAPK signaling pathways via PBZ-inducible system, which could provide an insight for in-depth study.

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Reactive Oxygen Intermediates Mediate a Systemic Signal Network in the Establishment of Plant Immunity

Cited by 1,050 publications

References 38 publications

NPR1: the spider in the web of induced resistance signaling pathways

NPR1: the spider in the web of induced resistance signaling pathways

Redox control of AP-1-like factors in yeast and beyond

Synthetic promoters consisting of defined cis-acting elements link multiple signaling pathways to probenazole-inducible system

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