Plant-derived Antibacterial Metabolites Suppressing Tomato Bacterial Wilt Caused by Ralstonia solanacearum

Vu, Thuy Thu; Choi, Gyung Ja; Kim, Jin-Cheol

doi:10.5423/rpd.2017.23.2.89

Cited by 6 publications

(6 citation statements)

References 45 publications

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“…Kubo also reported that compound 1 exhibited moderate antibacterial activity against Gram-positive bacteria such as Bacillus subtilis and Staphylococcus aureus , with minimum bactericidal concentration (MBC) values of 100 µg/mL; as well as against Gram-negative bacteria such as Salmonella choleraesuis and Escherichia coli , with MBC values of 50 µg/mL and 100 µg/mL, respectively [ 18 ]. Indeed, compound 1 inhibits the growth of phytopathogen bacteria Ralstonia solanacearum species complex (RSSC) with MIC at 25 μg/mL [ 19 ]. The mechanism of action of compound 1 involves membrane damage and inhibitory effects against ATP synthase in microorganisms.…”

Section: Introductionmentioning

confidence: 99%

“…The mechanism of action of compound 1 involves membrane damage and inhibitory effects against ATP synthase in microorganisms. As a nonionic surfactant, compound 1 first approaches the binding site with its electronegative aldehyde oxygen atom, a potent hydrogen bond acceptor that will disrupt existing hydrogen bonds [ 19 ]. Recently, Montenegro et al reported anti-phytopathogenic activity in compound 1 against two tomato plant bacteria pathogens, Clavibacter michiganensis subsp.…”

Section: Introductionmentioning

confidence: 99%

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Antimicrobial Activity of Drimanic Sesquiterpene Compounds from Drimys winteri against Multiresistant Microorganisms

Montenegro,

Pazmiño,

Araque

et al. 2024

Molecules

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In this work, a group of ten sesquiterpene drimanes, including polygodial (1), isopolygodial (2), and drimenol (3) obtained from the bark of Drimys winteri F. and seven synthetic derivatives, were tested in vitro against a unique panel of bacteria, fungi, and oomycetes with standardized procedures against bacterial strains K. pneumoniae, S. tiphy, E. avium, and E. coli. The minimum inhibitory concentrations and bactericidal activities were evaluated using standardized protocols. Polygodial (1) was the most active compound, with MBC 8 μg/mL and MIC 16 μg/mL in E. avium; MBC 16 μg/mL and MIC 32 μg/mL in K. pneumoniae; MBC 64 μg/mL and MIC 64 μg/mL in S. typhi; and MBC 8 μg/mL and MIC 16 μg/mL and MBC 32 μg/mL and MIC 64 μg/mL in E. coli, respectively. The observed high potency could be attributed to the presence of an aldehyde group at the C8–C9 position. The antifungal activity of 1 from different microbial isolates has been evaluated. The results show that polygodial affects the growth of normal isolates and against filamentous fungi and oomycetes with MFC values ranging from 8 to 64 μg/mL. Sesquiterpene drimanes isolated from this plant have shown interesting antimicrobial properties.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Antimicrobial Activity of Drimanic Sesquiterpene Compounds from Drimys winteri against Multiresistant Microorganisms

Montenegro,

Pazmiño,

Araque

et al. 2024

Molecules

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“…Lansiumamide B, isolated from the seeds of Clausena lansium, the minimum inhibitory concentration (MIC) of which is 0.13 mg/mL, and the control efficiency against tobacco bacterial wilt is nearly 40 times higher than streptomycin [18]. EOs contain a variety of chemicals that have inhibitory activity against R. solanacearum [19]. Thyme oil, marjoram oil, and caraway oil have a significant antibacterial effect against R. solanacearum of tomato.…”

Section: Introductionmentioning

confidence: 99%

Antibacterial Activity of Ferulic Acid Ester against Ralstonia solanacearum and Its Synergy with Essential Oils

Shi

et al. 2022

Sustainability

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Ralstonia solanacearum is one of the ten most harmful plant bacteria worldwide, and traditional agrochemicals are not very effective in controlling this pathogen. Moreover, excessive pesticides always bring organic residues and resistant strains, which cause the unsustainability of the environment. In this paper, ferulic acid and essential oils are used as antibacterial materials. These compounds are natural substances with low toxicity and environmental safety. Through the structural optimization and the analysis of binary combined bacteriostatic efficiency, the MIC values of chlorobutyl ferulate (2e) and peppermint essential oil (EO1) were 0.64 mg/mL and 2.02 mg/mL, respectively, and the MIC value of 2e-EO1 (mass ratio 1:1.5) was 0.40 mg/mL. The growth rate of bacteria treated with 2e-EO1 was inhibited, the OD590nm value of cell membrane decreased by 57.83%, and the expression levels of hrpB, pehC, pilT, polA, aceE, egl, and phcA were downregulated to 18.81%, 30.50%, 14.00%, 44.90%, 86.79%, 23.90%, and 27.56%, respectively. The results showed that 2e-EO1 had a synergistic inhibitory effect against R. solanacearum. It significantly affected the formation of the bacterial cell membrane and the expression of pathogenic genes. Consequently, 2e-EO1 provides the potential to become a green pesticide and can promote the sustainability of the agricultural ecological environment.

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“…Ralstonia solanacearum is an important phytopathogenic bacterium which causes bacterial wilt disease not only in potato but also in other crops in the Solanacea family, leading to significant production losses [1]. Once it invades the roots of the host plant, the pathogen aggressively colonizes the xylem vessels and eventually grows into a biofilm matrix that fills the vascular vessels leading to their obstruction and hence causing wilting [2].…”

Section: Introductionmentioning

confidence: 99%

Nanoencapsulation of Thymol and Eugenol with Chitosan Nanoparticles and the Effect against <i>Ralstonia solanacearum</i>

Oluoch¹,

Matiru²,

Mamati³

et al. 2021

AiM

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Essential oils (EOs) are natural bioactive compounds with antibacterial activity against a variety of microorganisms including phytopathogens. The use of EOs and their components as viable therapeutic antibacterials is however greatly compromised by their volatile nature, hydrophobicity and instability when exposed to environmental and physiological factors. Encapsulation of these compounds in an appropriate carrier system can alleviate these challenges. This study therefore aimed at developing, characterizing and evaluating the efficacy of antibacterial potential of thymol and eugenol loaded chitosan nanoparticles (TCNPs and ECNPs) against Ralstonia solanacearum, the bacterial wilt-causing pathogen in potatoes. Synthesis of TCNP and ECNP was achieved via ionic gelation method and the prepared nanoparticles characterized by their particle size distributions, encapsulation efficiency, loading capacity (LC) and in-vitro release characteristics.

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Plant-derived Antibacterial Metabolites Suppressing Tomato Bacterial Wilt Caused by Ralstonia solanacearum

Cited by 6 publications

References 45 publications

Antimicrobial Activity of Drimanic Sesquiterpene Compounds from Drimys winteri against Multiresistant Microorganisms

Antimicrobial Activity of Drimanic Sesquiterpene Compounds from Drimys winteri against Multiresistant Microorganisms

Antibacterial Activity of Ferulic Acid Ester against Ralstonia solanacearum and Its Synergy with Essential Oils

Nanoencapsulation of Thymol and Eugenol with Chitosan Nanoparticles and the Effect against <i>Ralstonia solanacearum</i>

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Plant-derived Antibacterial Metabolites Suppressing Tomato Bacterial Wilt Caused by Ralstonia solanacearum

Cited by 6 publications

References 45 publications

Antimicrobial Activity of Drimanic Sesquiterpene Compounds from Drimys winteri against Multiresistant Microorganisms

Antimicrobial Activity of Drimanic Sesquiterpene Compounds from Drimys winteri against Multiresistant Microorganisms

Antibacterial Activity of Ferulic Acid Ester against Ralstonia solanacearum and Its Synergy with Essential Oils

Nanoencapsulation of Thymol and Eugenol with Chitosan Nanoparticles and the Effect against &lt;i&gt;Ralstonia solanacearum&lt;/i&gt;

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Nanoencapsulation of Thymol and Eugenol with Chitosan Nanoparticles and the Effect against <i>Ralstonia solanacearum</i>