Ralstonia solanacearum: Biology and its Management in Solanaceous Vegetable Crops

Balamurugan, A.; Krishnan, Shekhar; Gautam, Raj Kumar; Sharma, Sushil; Kumar, Aundy

doi:10.1007/978-981-15-9154-9_10

Cited by 3 publications

(2 citation statements)

References 130 publications

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“…and pathogens will allow for identifying new strategies to be used to control the diseases without damaging the environment. Physical barriers, vulnerability, and phytoalexin yielding are some of the recognized traits used by Musa plants as defense mechanisms against pathogens [ 44 , 45 ]. Although the crops are indeed the most affected, plants possess different mechanisms to protect themselves, such as the development of secondary metabolites to eliminate the pathogen from its system.…”

Section: Discussionmentioning

confidence: 99%

Secondary Metabolites and Antioxidant Activity against Moko Disease as a Defense Mechanism of Musa spp. from the Ecuadorian Coast Area

Mihai,

Terán-Maza,

Portilla-Benalcazar

et al. 2024

Metabolites

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The Musa spp. represents the most commonly produced, transitioned, and consumed fruit around the globe, with several important applications in the biotechnology, pharmaceutical, and food industries. Moko disease is produced by Ralstonia solanacearum—a factor with a high impact on all crops in Ecuador, representing one of the biggest phytosanitary problems. Four of the most common varieties of Musa spp. were tested to identify the metabolic reaction of plants facing Moko disease. The phenolic and flavonoid content has been evaluated as a defense system, and the α-diphenyl-α-picrylhydrazyl free-radical-scavenging method (DPPH), free-radical-scavenging activity (ABTS), ferric-reducing antioxidant power (FRAP) assays, and liquid chromatography and mass spectrometry (LC-MS) have been adapted to analyze the active compounds with the antioxidant capacity necessary to counteract the pathogenic attack. Our results indicate that all the studied varieties of Musa spp. react in the same way, such that the diseased samples showed a higher accumulation of secondary metabolites with antioxidant capacity compared with the healthy ones, with high active compound synthesis identified during the appearance of Moko disease symptoms. More than 40 compounds and their derivatives (from kaempferol and quercetin glycosides) with protective roles demonstrate the implication of the Musa spp. defense system against R. solanacearum infection.

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Section: Discussionmentioning

confidence: 99%

Secondary Metabolites and Antioxidant Activity against Moko Disease as a Defense Mechanism of Musa spp. from the Ecuadorian Coast Area

Mihai,

Terán-Maza,

Portilla-Benalcazar

et al. 2024

Metabolites

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“…Biology of RS and its management in solanaceous vegetable crops was evaluated by Balamurugan et al (2020). In this study, in subtropical, tropical, and some warmer temperate regions, this bacterium is a soil-borne bacterium causing bacterial wilt disease on wider host plants.…”

Section: Remarkable Major Research Work Done On the Soil Borne Pathog...mentioning

confidence: 99%

A Review on Solanaceous Plant Diseases Caused by Ralstonia Solanacearum Having Serious Economic Impact

Dey,

Sen

2023

PLANT ARCHIVES

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The highly destructive soil-borne pathogen Ralstonia solanacerum (Smith) Yabuuchi et al. (RS) affects a variety of solanaceous plants and causes catastrophic diseases leading to massive economic losses across the globe. Biochemical assays separate this bacterium's strains into 5 races and 5 biovars by host range. This bacterium's race 1 biovar 1, which is endemic to the south-eastern United States, infects many different vegetable and ornamental species. Some solanaceous vegetables and ornamental crops are infected by RS race 3 biovar 2, which causes brown rot, bacterial wilt, and Moko disease. The race 3 biovar 3 is not hosted by tobacco. The most devastating RS diseases affect solanaceous crops like potatoes, tobacco, pepper, tomatoes, and eggplant. This review offers a thorough examination of this bacterium's impacts on solanaceous crops, emphasizing their economic impact. It also emphasizes the importance of integrated disease management, including current developments in control methods (biological, physical, chemical, cultural, and integrated) and bio-control effectiveness and suppression mechanisms, to combat deadly bacterial wilt diseases. Avirulent RS, Pseudomonas, Bacillus, and Streptomyces spp. strains are examples of well-known Biological Control Agents (BCAs). Research shows that plant waste, animal manure, and organic materials reduce bacterial wilt. It's crucial to incorporate pest management for bacterial wilt infections. This review also identifies intriguing possibilities for future study and collaboration on this bacterium. Understanding this bacterium's complexity and using effective management measures can lessen its detrimental effects on agriculture.

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New Strategy for Inducing Resistance against Bacterial Wilt Disease Using an Avirulent Strain of Ralstonia solanacearum

et al. 2022

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Ralstonia solanacearum is one of the globally significant plant pathogens that infect a wide host range of economically important plants. A study was conducted to evaluate the hypothesis that an avirulent strain of R. solanacearum can act as a biocontrol mediator for managing potato bacterial wilt. Virulent R. solanacearum was isolated and identified (GenBank accession number; OP180100). The avirulent strain was obtained from the virulent strain through storage for 3 weeks until the development of deep red colonies. The virulent strain had higher lytic activity than the avirulent strain. Tubers’ treatments by the avirulent strain of R. solanacearum, (supernatant, boiled supernatant, and dead cells) significantly reduced plant disease rating and increased the growth, physiological activities, and biomass of potato compared to the untreated, infected control. The major components detected by GC–MS in the supernatant revealed 10.86% palmitic acid (virulent), and 18.03% 1,3-dioxolane, 2,4,5-trimethyl- (avirulent), whereas the major component in the boiled supernatant was 2-hydroxy-gamma-butyrolactone in the virulent (21.17%) and avirulent (27.78%) strains. This is the first research that assessed the influence of boiled supernatant and dead cells of virulent and avirulent R.solanacearum strains in controlling bacterial wilt disease. Additional work is encouraged for further elucidation of such a topic.

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Ralstonia solanacearum: Biology and its Management in Solanaceous Vegetable Crops

Cited by 3 publications

References 130 publications

Secondary Metabolites and Antioxidant Activity against Moko Disease as a Defense Mechanism of Musa spp. from the Ecuadorian Coast Area

Secondary Metabolites and Antioxidant Activity against Moko Disease as a Defense Mechanism of Musa spp. from the Ecuadorian Coast Area

A Review on Solanaceous Plant Diseases Caused by Ralstonia Solanacearum Having Serious Economic Impact

New Strategy for Inducing Resistance against Bacterial Wilt Disease Using an Avirulent Strain of Ralstonia solanacearum

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