<scp>GroEL</scp> protein from the potential biocontrol agent <i>Rhodopseudomonas palustris</i> enhances resistance to rice blast disease

Wu, Xiyang; Chen, Yue; Li, Chenggang; Zhang, Xin; Tan, Xinqiu; Lv, Liang; Liu, Yong; Zhang, Deyong

doi:10.1002/ps.6584

Cited by 10 publications

(3 citation statements)

References 26 publications

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“…A GroEL protein, separated and purified from photosynthetic bacteria Rhodopseudomonas palustris, had an obvious antagonistic effect on the appressorial formation and pathogenicity of M. oryzae. This evidence shows that this photosynthetic bacterium could be a potential biocontrol agent against rice blast control [149]. Cellulose, an organic polysaccharide, has been investigated and applied in different fields [150].…”

Section: Factors Limiting Appressorium Formation and Their Potential ...mentioning

confidence: 90%

Appressoria—Small but Incredibly Powerful Structures in Plant–Pathogen Interactions

Shi

Zhao

2023

IJMS

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Plant-pathogenic fungi are responsible for many of the most severe crop diseases in the world and remain very challenging to control. Improving current protection strategies or designating new measures based on an overall understanding of molecular host–pathogen interaction mechanisms could be helpful for disease management. The attachment and penetration of the plant surface are the most important events among diverse plant–fungi interactions. Fungi evolved as small but incredibly powerful infection structure appressoria to facilitate attachment and penetration. Appressoria are indispensable for many diseases, such as rusts, powdery mildews, and blast diseases, as well as devastating oomycete diseases. Investigation into the formation of plant–pathogen appressoria contributes to improving the understanding of the molecular mechanisms of plant–pathogen interactions. Fungal host attachment is a vital step of fungal pathogenesis. Here, we review recent advances in the molecular mechanisms regulating the formation of appressoria. Additionally, some biocontrol agents were revealed to act on appressorium. The regulation of fungal adhesion during the infective process by acting on appressoria formation is expected to prevent the occurrence of crop disease caused by some pathogenic fungi.

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Section: Factors Limiting Appressorium Formation and Their Potential ...mentioning

confidence: 90%

Appressoria—Small but Incredibly Powerful Structures in Plant–Pathogen Interactions

Shi

Zhao

2023

IJMS

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“…Many methods have been adopted for the management of this disease. Major methods include using resistant cultivars, application of fungicides and certain bio-control methods 10,12 . However, these methods did not prove effective owing to newly evolved fungicideresistant races of P. oryzae, which also break resistance of varieties 13 .…”

Section: Introductionmentioning

confidence: 99%

Predicting Rice Blast (Pyriculariaoryzae) Severity Using Epidemiological Data with Advanced Regression Modeling Strategies

Arooj,

Ahmad,

Ali

et al. 2024

Preprint

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Rice blast is a detrimental disease widely prevalent in the world. Many disease predictive models have been developed for Rice blast disease (RBD) in different regions, but the disease prediction modeling in semi-arid areas is less characterized. Here, we focused on developing a disease predictive model (DPM) for rice blast disease (RBD) based on eight-year (2009–2016) environmental variables and their correlation with the RBD severity data, followed by validation with two-year (2017–2018) field trial data in a semi-arid region of Pakistan. Besides the correlation analysis, the model implied multiple linear regression analysis. The DPM indicated that five environmental variables maximum (Max) and minimum (Min) temperature, rainfall (RF), relative humidity (RH) and windspeed (WS), significantly contributed to the development of RBD during eight years. The obtained values of standard statistical indicators, coefficient of determination (R2) low standard error (SE) ≤ 10, and significance of F-distribution of regression statistics proved the effectiveness in predicting RBD for eight years. Furthermore, the criteria of root-mean square error (RMSE) and error (%) of 8 year data and observed data suggested a striking closeness between old and observed values of RBD severity, indicating the effective reliability of the model in both contexts. The analysis of 8 year DPM data showed that five environmental variables (max and min temps, RF, RH and WS) could cause up to 92% variability in RBD. Except for min temp, which showed a negative correlation suggesting a minor influence on disease development, the other four environmental factors exhibited a positive correlation with RBD severity, indicating the maximum contributing factors in disease development. The developed model helped us to predict the ranges of environmental factors, Max and Min temp 40–42°C and 22–24°C, RF 2-2.5 mm, RH 50–70%, and WS 9–11 Km/h, significantly favorable for RBD. The current prototype DPM of RBD has the potential for practical application if combined with a weather prediction system, which could be useful in developing rice blast disease warning system in the semi-arid zone of Punjab and predicting the appropriate time of the fungicidal sprays.

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“…The fungus M. oryzae causes rice blast, which is the most widespread and serious disease affecting rice [1,2] and one of the most destructive and economically harmful diseases affecting rice production worldwide [3,4]. At present, the methods of diseaseresistant variety breeding and chemical control are mainly used for the prevention and control of M. oryzae in China [5].…”

Section: Introductionmentioning

confidence: 99%

The Antifungal Effects of Citral on Magnaporthe oryzae Occur via Modulation of Chitin Content as Revealed by RNA-Seq Analysis

Song

Zhao

Zhou

et al. 2021

JoF

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The natural product citral has previously been demonstrated to possess antifungal activity against Magnaporthe oryzae. The purpose of this study was to screen and annotate genes that were differentially expressed (DEGs) in M. oryzae after treatment with citral using RNA sequencing (RNA-seq). Thereafter, samples were reprepared for quantitative real-time PCR (RT-qPCR) analysis verification of RNA-seq data. The results showed that 649 DEGs in M. oryzae were significantly affected after treatment with citral (100 μg/mL) for 24 h. Kyoto Encyclopedia of Genes and Genomes (KEGG) and a gene ontology (GO) analysis showed that DEGs were mainly enriched in amino sugar and nucleotide sugar metabolic pathways, including the chitin synthesis pathway and UDP sugar synthesis pathway. The results of the RT-qPCR analysis also showed that the chitin present in M. oryzae might be degraded to chitosan, chitobiose, N-acetyl-D-glucosamine, and β-D-fructose-6-phosphate following treatment with citral. Chitin degradation was indicated by damaged cell-wall integrity. Moreover, the UDP glucose synthesis pathway was involved in glycolysis and gluconeogenesis, providing precursors for the synthesis of polysaccharides. Galactose-1-phosphate uridylyltransferase, which is involved in the regulation of UDP-α-D-galactose and α-D-galactose-1-phosphate, was downregulated. This would result in the inhibition of UDP glucose (UDP-Glc) synthesis, a reduction in cell-wall glucan content, and the destruction of cell-wall integrity.

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GroEL protein from the potential biocontrol agent Rhodopseudomonas palustris enhances resistance to rice blast disease

Cited by 10 publications

References 26 publications

Appressoria—Small but Incredibly Powerful Structures in Plant–Pathogen Interactions

Appressoria—Small but Incredibly Powerful Structures in Plant–Pathogen Interactions

Predicting Rice Blast (Pyriculariaoryzae) Severity Using Epidemiological Data with Advanced Regression Modeling Strategies

The Antifungal Effects of Citral on Magnaporthe oryzae Occur via Modulation of Chitin Content as Revealed by RNA-Seq Analysis

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