Differential gene responses in different varieties of pomegranate during the pathogenesis of Xanthomonas axonopodis pv. punicae

Kumar, Pavan; Dashyal, Mahesh S.; Doddaraju, Pushpa; Meti, Bharati S.

doi:10.1007/s13205-021-02721-y

Cited by 8 publications

(6 citation statements)

References 45 publications

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“…Climate anomalies are resulting in unstable conditions for plants’ growth since past years, which ultimately exert immense pressure on food production. The studies relating to epidemiological factors helps in management decisions by determining the conducive environmental conditions for the development of diseases such as citrus canker [ 34 , 35 ]. Hence, development and utilization of disease predictive model with relation to environmental factors is probably the most effective way to manage the prevalence of citrus canker disease.…”

Section: Introductionmentioning

confidence: 99%

Predicting the impact of environmental factors on citrus canker through multiple regression

et al. 2022

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Climatic conditions play a significant role in the development of citrus canker caused by Xanthomonas citri pv. citri (Xcc). Citrus canker is regarded as one of the major threats being faced by citrus industry in citrus growing countries of the world. Climatic factors exert significant impacts on growth stage, host susceptibility, succulence, vigor, survival, multiplication rate, pathogen dispersion, spore penetration rate, and spore germination. Predicting the impacts of climatic factors on these traits could aid in the development of effective management strategies against the disease. This study predicted the impacts of environmental variables, i.e., temperature, relative humidity, rainfall, and wind speed the development of citrus canker through multiple regression. These environmental variables were correlated with the development of canker on thirty (30) citrus varieties during 2017 to 2020. Significant positive correlations were noted among environment variables and disease development modeled through multiple regression model (Y = +24.02 + 0.5585 X1 + 0.2997 X2 + 0.3534 X3 + 3.590 X4 + 1.639 X5). Goodness of fit of the model was signified by coefficient determination value (97.5%). Results revealed the optimum values of environmental variables, i.e., maximum temperature (37°C), minimum temperature (27°C), relative humidity (55%), rainfall (4.7–7.1 mm) and wind speed (8 Km/h), which were conducive for the development of citrus canker. Current study would help researchers in designing better management strategies against citrus canker disease under changing climatic conditions in the future.

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Section: Introductionmentioning

confidence: 99%

Predicting the impact of environmental factors on citrus canker through multiple regression

et al. 2022

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“…Disease resistance in plants is closely related to their H 2 O 2 production and the activity of their defensive enzymes . SC and BT can promote increased H 2 O 2 production, increase rice defenses, promote the expression of related defensive genes, and improve the defensive ability of rice infected with Xoo . , The levels of defensive enzymes and defensive genes in plant hosts infested with bacteria represent a plant’s defense capability . Ethylicin induces resistance defense in rice by significantly accumulating H 2 O 2 and significantly promoting the activity of defensive enzymes (CAT and SOD), as well as increasing the expression of rice defensive genes ( catalase and copper/zinc SOD ) in Xoc -infected rice, and we hypothesize that ethylicin can trigger the immune system of rice and induce resistance defense in rice.…”

Section: Resultsmentioning

confidence: 99%

Ethylicin Inhibition of Xanthomonas oryzae pv. oryzicola In Vitro and In Vivo

Huang

Zhao

et al. 2023

J. Agric. Food Chem.

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Infestation of rice with the bacterium Xanthomonas oryzae pv. oryzicola (Xoc) causes the serious disease bacterial leaf streak (BLS). We studied the effect of ethylicin, a broad-spectrum bactericide, on Xoc both in vivo and in vitro. Ethylicin increases the defensive enzyme activities and defensive genes expression of rice. Ethylicin also significantly inhibited Xoc activity in vitro compared with other commercial bactericides. The half-maximal effective concentration (EC50) of ethylicin was 2.12 μg/mL. It has been shown that ethylicin can inhibit Xoc quorum sensing through the production of extracellular polysaccharides and enzymes, which disrupt the Xoc cell membrane. We used proteomic analysis to identify two oxidative phosphorylation pathway proteins (ACU12_RS13405 and ACU12_RS13355) which affected the virulence of Xoc and validated them using quantitative real-time polymerase chain reaction (qRT-PCR). The results indicate that ethylicin can increase the defense responses of rice and control Xoc proliferation.

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“…Eugenol treatment can improve fruit quality and enhance the activity of diseaseassociated enzymes during storage, thereby increasing disease resistance and prolonging the corresponding storage period. Under eugenol treatment, the resistance of tomato fruit [45] to yellow leaf curl virus could be significantly enhanced, and the expression of phenylalanine ammonia-lyase and CHI-related genes in pomegranate [46] could be significantly upregulated. The activity of disease resistance-related enzymes in passion fruit gradually decreases during the ripening process, and then the fruit gradually decays with aging.…”

Section: Discussionmentioning

confidence: 99%

The Inhibitory Mechanism of Eugenol on Lasiodiplodia theobromae and Its Induced Disease Resistance of Passion Fruit

et al. 2023

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The inhibitory effects and mechanisms of eugenol were studied in pathogenic fungi that were isolated from passion fruit affected with naturally occurring fruit rot; additionally, the effect of eugenol treatment on fruit rot resistance in passion fruit was investigated. The corresponding results demonstrated that the pathogenic fungus causing passion fruit rot was Lasiodiplodia theobromae and that the minimal inhibitory concentration of eugenol against L. theobromae was 0.30 mg/mL. Eugenol significantly inhibited mycelial growth and spore germination of this fruit rot fungus. Further, nucleic acid release, electrical conductivity, and protein and soluble sugar content of the fruit rot fungus gradually increased with increasing eugenol concentrations. Propidium iodide staining revealed that the cell membrane integrity of L. theobromae hyphae was disrupted when treated with eugenol. In addition, eugenol treatment inhibited the spread of disease spot diameter after inoculation with L. theobromae, effectively increased APX, SOD, CAT, POD, 4CL, C4H, and PAL activities, promoted the accumulation of disease-stage-related proteins CHI and GLU, and increased the total phenol and flavonoid content during storage in passion fruit. Overall, these results suggest that eugenol has good application prospects for the effective control of fruit rot in passion fruit.

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Differential gene responses in different varieties of pomegranate during the pathogenesis of Xanthomonas axonopodis pv. punicae

Cited by 8 publications

References 45 publications

Predicting the impact of environmental factors on citrus canker through multiple regression

Predicting the impact of environmental factors on citrus canker through multiple regression

Ethylicin Inhibition of Xanthomonas oryzae pv. oryzicola In Vitro and In Vivo

The Inhibitory Mechanism of Eugenol on Lasiodiplodia theobromae and Its Induced Disease Resistance of Passion Fruit

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