Reactive Oxygen Species and Plant Disease Resistance

Künstler, András; Bacsó, Renáta; Hafez, Y. M.; Király, Lóránt

doi:10.1007/978-3-319-20421-5_11

Cited by 13 publications

(9 citation statements)

References 204 publications

(229 reference statements)

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“…Plant exposure to biotic and abiotic stresses leads to the generation of reactive oxygen species (ROS) to trigger the stress response and defense pathways. ROS overaccumulation causes oxidative damage, impaired membrane lipid functions, enzyme inactivation, impeded metabolic activities, and, ultimately, plant death [111]. We found that H 2 O 2 and MDA levels increased in infected plants, which was in accordance with the results of previous studies [111].…”

Section: Discussionsupporting

confidence: 91%

“…ROS overaccumulation causes oxidative damage, impaired membrane lipid functions, enzyme inactivation, impeded metabolic activities, and, ultimately, plant death [111]. We found that H 2 O 2 and MDA levels increased in infected plants, which was in accordance with the results of previous studies [111]. PGPR-inoculated plants showed lower H 2 O 2 and MDA levels when under pathogen attack.…”

Section: Discussionsupporting

confidence: 90%

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Biocontrol Potential of Bacillus amyloliquefaciens against Botrytis pelargonii and Alternaria alternata on Capsicum annuum

Kazerooni

Maharachchikumbura

Al-Sadi

et al. 2021

JoF

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The aim of this study was to assess the ability of Bacillus amyloliquefaciens, to augment plant growth and suppress gray mold and leaf spot in pepper plants. Morphological modifications in fungal pathogen hyphae that expanded toward the PGPR colonies were detected via scanning electron microscope. Furthermore, preliminary screening showed that PGPR could produce various hydrolytic enzymes in its media. Treatments with B. amyloliquefaciens suppressed Botrytis gray mold and Alternaria leaf spot diseases on pepper caused by Botrytis pelargonii and Alternaria alternata, respectively. The PGPR strain modulated plant physio-biochemical processes. The inoculation of pepper with PGPR decreased protein, amino acid, antioxidant, hydrogen peroxide, lipid peroxidation, and abscisic acid levels but increased salicylic acid and sugar levels compared to those of uninoculated plants, indicating a mitigation of the adverse effects of biotic stress. Moreover, gene expression studies confirmed physio-biochemical findings. PGPR inoculation led to increased expression of the CaXTH genes and decreased expression of CaAMP1, CaPR1, CaDEF1, CaWRKY2, CaBI-1, CaASRF1, CaSBP11, and CaBiP genes. Considering its beneficial effects, the inoculation of B. amyloliquefaciens can be proposed as an eco-friendly alternative to synthetic chemical fungicides.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 90%

Biocontrol Potential of Bacillus amyloliquefaciens against Botrytis pelargonii and Alternaria alternata on Capsicum annuum

Kazerooni

Maharachchikumbura

Al-Sadi

et al. 2021

JoF

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“…H 2 O 2 can directly or indirectly disrupt membrane lipid peroxidation and can also rapidly accumulate in cells to induce plant resistance (Torres et al, 2006). It has been reported that Si can regulate ROS levels to improve the ability to resist disease (Künstler et al, 2015). Si can significantly increase ROS levels in rice leaves to increase resistance to bacterial wilt (X. oryzae pv.…”

Section: Discussionmentioning

confidence: 99%

Physiological Mechanisms of Improved Smut Resistance in Sugarcane Through Application of Silicon

Deng

Chen

et al. 2020

Front. Plant Sci.

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“…Potato late blight, which is caused by phytopathogenic oomycetes, has become the most serious disease of this worldwide food crop, and it has the potential to reduce potato production and lower or even destroy the quality of potatoes. For plants, the development of disease symptoms is correlated with changes in the content of reactive oxygen species (ROS) [4][5][6] . An excessive accumulation of ROS is toxic and always has a negative impact on the plant.…”

Section: Introductionmentioning

confidence: 99%

Kinetic models of peroxidase activity in potato leaves infected with late blight based on hyperspectral data

Li¹,

Hu²

2019

International Journal of Agricultural and Biological Engineering

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Potato late blight, which is caused by Phytophthorainfestans (Mont.) de Bary, is a worldwide devastating disease for potato. It decreased yields of potato and caused unpredictable losses all over the world. Various simple statistical methods and forecasting models have been developed to predict and manage potato late blight. Meanwhile, there is a rising need to develop prediction models reflecting peroxidase (POD) activity, which is an important health index that varies with infection and correlated with stress resistance in plants. Thus, the aim of this research was to develop kinetic models to predict POD activity. Infection-induced changes in potato leaves stored in an artificial climate chest at 25°C were analyzed using hyperspectroscopy. Four prediction models were developed by using linear partial least squares (PLS) and nonlinear support vector machine (SVM) methods based on the full spectrum and effective wavelengths. The effective wavelengths were selected by the successive projection algorithm (SPA). In this study, the prediction model developed by means of SPA-SVM method obtained the best performance, with a R p (correlation coefficient of prediction) value of 0.923 and a RMSEp (root mean square error of prediction) value of 24.326. Five-order kinetics models according to the prediction model were developed, and late blight disease can be predicted using this model. This study provided a theoretical basis for the prediction of latencies of late blight.

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Reactive Oxygen Species and Plant Disease Resistance

Cited by 13 publications

References 204 publications

Biocontrol Potential of Bacillus amyloliquefaciens against Botrytis pelargonii and Alternaria alternata on Capsicum annuum

Biocontrol Potential of Bacillus amyloliquefaciens against Botrytis pelargonii and Alternaria alternata on Capsicum annuum

Physiological Mechanisms of Improved Smut Resistance in Sugarcane Through Application of Silicon

Kinetic models of peroxidase activity in potato leaves infected with late blight based on hyperspectral data

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