Quercetin-induced H2O2 mediates the pathogen resistance against Pseudomonas syringae pv. Tomato DC3000 in Arabidopsis thaliana

Jia, Zhenhua; Zou, Baohong; Wang, Xiaomeng; Qiu, Jian; Mā, Hong; Gou, Zhenhua; Song, Shuishan; Dong, Hansong

doi:10.1016/j.bbrc.2010.04.131

Cited by 63 publications

(55 citation statements)

References 35 publications

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“…The rivoflavin-induced resistance against Rhizoctonia solani in rice was also associated with an augmented accumulation of H 2 O 2 [37]. Jia et al [38] demonstrated that treatment with the flavonoid compound quercetin induced resistance against P. syringae pv. tomato DC3000 by increasing H 2 O 2 level in Arabidopsis .…”

Section: Discussionmentioning

confidence: 99%

Bacillus cereus AR156-Induced Resistance to Colletotrichum acutatum Is Associated with Priming of Defense Responses in Loquat Fruit

Wang

et al. 2014

PLoS ONE

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The effectiveness of a biocontrol agent Bacillus cereus AR156 for control of anthracnose rot caused by Colletotrichum acutatum in harvested loquat fruit and the possible mechanisms of its action have been investigated. Treatment of fruit with B. cereus AR156 resulted in lower disease incidence and smaller lesion diameters compared with that of untreated fruit. The treatment enhanced activities of defense-related enzymes including chitinase, β-1, 3-glucanase, phenylalanine ammonia-lyase, peroxidase and polyphenoloxidase, and promoted accumulation of H2O2. Total phenolic content and 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity were also increased by treatment. Transcripts of three defense-related genes were enhanced only in fruit undergoing both B. cereus AR156 treatment and C. acutatum inoculation compared with those receiving either intervention alone. These results suggest that the disease resistance against C. acutatum in loquat fruit is enhanced by B. cereus AR156 and that the induced resistance is associated with induction and priming of defense responses in the fruit.

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Section: Discussionmentioning

confidence: 99%

Bacillus cereus AR156-Induced Resistance to Colletotrichum acutatum Is Associated with Priming of Defense Responses in Loquat Fruit

Wang

et al. 2014

PLoS ONE

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“…Indeed, exogenous naringenin treatment led to increased drought tolerance (Pourcel et al, 2013), while quercetin and rutin priming led to increased resistance against bacterial pathogens in Arabidopsis (Jia et al, 2010; Yang et al, 2016). A screening of an array of mutants revealed that flavonoids are determinants of freezing tolerance and cold acclimation in Arabidopsis (Schulz et al, 2016).…”

Section: Damp Mixtures For Multistress Resistancementioning

confidence: 99%

Fructans As DAMPs or MAMPs: Evolutionary Prospects, Cross-Tolerance, and Multistress Resistance Potential

2017

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This perspective paper proposes that endogenous apoplastic fructans in fructan accumulating plants, released after stress-mediated cellular leakage, or increased by exogenous application, can act as damage-associated molecular patterns (DAMPs), priming plant innate immunity through ancient receptors and defense pathways that most probably evolved to react on microbial fructans acting as microbe-associated molecular patterns (MAMPs). The proposed model is placed in an evolutionary perspective. How this type of DAMP signaling may contribute to cross-tolerance and multistress resistance effects in plants is discussed. Besides apoplastic ATP, NAD and fructans, apoplastic polyamines, secondary metabolites, and melatonin may be considered potential players in DAMP-mediated stress signaling. It is proposed that mixtures of DAMP priming formulations hold great promise as natural and sustainable alternatives for toxic agrochemicals.

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“…These flavonoids could also be involved in moss defense responses, since quercetin induces a resistance mechanism in Arabidopsis tissues in response to Pseudomonas syringae pv. tomato DC3000 infection, evidenced by an oxidative burst, callose deposition, and induced expression of PR-1 and PAL [101]. In addition, the Pythium and B. cinerea inducible PpLOX1 [26,28] can use arachidonic acid as a substrate leading to the production of oxylipins, which are not present in flowering plants [102–104] and could contribute to the P. patens defense response.…”

Section: Induced Expression Of Defense-related Genes and Synthesismentioning

confidence: 99%

Activation of Defense Mechanisms against Pathogens in Mosses and Flowering Plants

León

Montesano²

2013

IJMS

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During evolution, plants have developed mechanisms to cope with and adapt to different types of stress, including microbial infection. Once the stress is sensed, signaling pathways are activated, leading to the induced expression of genes with different roles in defense. Mosses (Bryophytes) are non-vascular plants that diverged from flowering plants more than 450 million years ago, allowing comparative studies of the evolution of defense-related genes and defensive metabolites produced after microbial infection. The ancestral position among land plants, the sequenced genome and the feasibility of generating targeted knock-out mutants by homologous recombination has made the moss Physcomitrella patens an attractive model to perform functional studies of plant genes involved in stress responses. This paper reviews the current knowledge of inducible defense mechanisms in P. patens and compares them to those activated in flowering plants after pathogen assault, including the reinforcement of the cell wall, ROS production, programmed cell death, activation of defense genes and synthesis of secondary metabolites and defense hormones. The knowledge generated in P. patens together with comparative studies in flowering plants will help to identify key components in plant defense responses and to design novel strategies to enhance resistance to biotic stress.

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Quercetin-induced H2O2 mediates the pathogen resistance against Pseudomonas syringae pv. Tomato DC3000 in Arabidopsis thaliana

Cited by 63 publications

References 35 publications

Bacillus cereus AR156-Induced Resistance to Colletotrichum acutatum Is Associated with Priming of Defense Responses in Loquat Fruit

Bacillus cereus AR156-Induced Resistance to Colletotrichum acutatum Is Associated with Priming of Defense Responses in Loquat Fruit

Fructans As DAMPs or MAMPs: Evolutionary Prospects, Cross-Tolerance, and Multistress Resistance Potential

Activation of Defense Mechanisms against Pathogens in Mosses and Flowering Plants

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