Epidemiology and Control of Plant Diseases Caused by Phytopathogenic Bacteria: The Case of Olive Knot Disease Caused by Pseudomonas savastanoi pv. savastanoi

Quesada, José Miguel; Penyalver, Ramón; López, Marı́a M.

doi:10.5772/32544

Cited by 6 publications

(2 citation statements)

References 74 publications

(138 reference statements)

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“…Pseudomonas savastanoi pv. savastanoi NCPPB 3335 is the causal agent of the olive knot disease that is characterized by the death of branches and progressive weakening, resulting in estimated production losses of 1.3% in Spain (Quesada et al, 2012). Two XopD-like proteins, HopBL1 and HopBL2, are secreted through the type III secretion system.…”

Section: Bacterial Effectors Displaying Sumo Protease Activitymentioning

confidence: 99%

SUMOylation in Phytopathogen Interactions: Balancing Invasion and Resistance

Sharma

Fuertes

Pérez-Gil

et al. 2021

Front. Cell Dev. Biol.

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Plants are constantly confronted by a multitude of biotic stresses involving a myriad of pathogens. In crops, pathogen infections result in significant agronomical losses worldwide posing a threat to food security. In order to enter plant tissues and establish a successful infection, phytopathogens have to surpass several physical, and chemical defense barriers. In recent years, post-translational modification (PTM) mechanisms have emerged as key players in plant defense against pathogens. PTMs allow a highly dynamic and rapid response in front of external challenges, increasing the complexity and precision of cellular responses. In this review, we focus on the role of SUMO conjugation (SUMOylation) in plant immunity against fungi, bacteria, and viruses. In plants, SUMO regulates multiple biological processes, ranging from development to responses arising from environmental challenges. During pathogen attack, SUMO not only modulates the activity of plant defense components, but also serves as a target of pathogen effectors, highlighting its broad role in plant immunity. Here, we summarize known pathogenic strategies targeting plant SUMOylation and, the plant SUMO conjugates involved in host-pathogen interactions. We also provide a catalog of candidate SUMO conjugates according to their role in defense responses. Finally, we discuss the complex role of SUMO in plant defense, focusing on key biological and experimental aspects that contribute to some controversial conclusions, and the opportunities for improving agricultural productivity by engineering SUMOylation in crop species.

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Section: Bacterial Effectors Displaying Sumo Protease Activitymentioning

confidence: 99%

SUMOylation in Phytopathogen Interactions: Balancing Invasion and Resistance

Sharma

Fuertes

Pérez-Gil

et al. 2021

Front. Cell Dev. Biol.

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“…The tree of olive faces many threats and diseases such as crown gall, wound canker, olive quick decline syndrome, and olive knot disease. Olive knot disease is caused by the Gramnegative phytopathogenic bacterium Pseudomonas savastanoi (Quesada et al, 2012). It is a severe disease that occurs where the wounds are caused by the damage through late winter frost and the injuries were caused by harvesting tools during wet weather or moist winds (Panagopoulos, 1993).…”

Section: Introductionmentioning

confidence: 99%

Biocontrol Activities of Olive Endophytic Bacteria Isolates Against Pseudomonas savastanoi

Rashid

2023

Polytechnic j.

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Background and objectives: Olive knot disease caused by the phytopathogenic bacterium Pseudomonas savastanoi affects olive cultivation in both quality and quantity. Endophytic bacteria are candidates for biocontrol agents according to previous research. Methods: In this study we collected samples (leaves and galls) randomly for pathogen and endophytic bacteria isolation from the different olive growing areas around Erbil including (Qucha Blbas, Grdasor, Sami Abdulrahman Park, and College of Agricultural Engineering Sciences) on June - October 2021. Results: Forty-six isolates of endophytic bacteria were obtained and tested against P. savastanoi. The result indicated that five isolates showed growth inhibition of the pathogen among them two of the most effective isolates selected (Oq5 and Og2) with the pathogenic isolate molecularly identified using amplified 16S rDNA. The pathogenic isolate identified as P. savastanoi (Accession No. OP001734), isolate Oq5 P. fluorescens (Accession No. OP001733), and Og2 as Bacillus sp. (Accession No. OP001732). Also, their secondary metabolites extracted at different times of incubation and tested using the agar well diffusion method showed great inhibition of the pathogen. Both isolates showed the highest inhibition zone (25-26mm) after 10 days of incubation. Conclusions: Our results suggest that both endophytic bacteria isolate effective biocontrol of olive knot disease.

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Trends in Biomathematics: Modeling, Optimization and Computational Problems

Berardo

Bulai

Venturino

et al. 2018

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Epidemiology and Control of Plant Diseases Caused by Phytopathogenic Bacteria: The Case of Olive Knot Disease Caused by Pseudomonas savastanoi pv. savastanoi

Cited by 6 publications

References 74 publications

SUMOylation in Phytopathogen Interactions: Balancing Invasion and Resistance

SUMOylation in Phytopathogen Interactions: Balancing Invasion and Resistance

Biocontrol Activities of Olive Endophytic Bacteria Isolates Against Pseudomonas savastanoi

Trends in Biomathematics: Modeling, Optimization and Computational Problems

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