Biological control of bacterial canker of tomato (<i>Lycopersicon esculentum</i> Mill.) by use of non-native strains of plant growth-promoting rhizobacteria

Oloyede, A. R.; Ogbuagor, Chiedu J.; Afolabi, C. G.; Akintokun, A.K.

doi:10.1080/03235408.2021.1895477

Cited by 9 publications

(6 citation statements)

References 24 publications

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“…PGPRs can produce a variety of cell wall degrading enzymes, and hydrolytic enzymes that suppress the pathogen through cell lysis and parasitism [ 58 , 79 ]. As well, recent research by Oloyede et al [ 51 ] reported that the non-indigenous strains Alcaligenes faecalis and Acinetobacter sp. were very effective in decreasing the severity of bacterial canker, as these strains could attack the bacterial cell wall by secreting a variety of enabling enzymes such as cellulase, protease, pectinase, and β-1,3-glucanase.…”

Section: The Use Of Pgprs As An Alternative Biocontrol Strategymentioning

confidence: 80%

“…This could be due to the sporadic nature of bacterial canker, which makes its management extremely complicated once it is triggered. [ 14 ] Unfortunately, to date, no control method has proven to be completely effective [ 51 ], as there are no commercially available Cmm -resistant cultivars yet, as well as because of the pathogen’s genetic diversity and genomic heterogeneity [ 36 ]. In addition, research investigating the chemical control of Cmm is scarce and has shown variable results] [ 36 , 52 ].…”

Section: Disease Management Strategiesmentioning

confidence: 99%

“…Its production was found to be associated with an improved capacity of P. brassicacearum to colonize the rhizosphere of tomato plants, thus resulting in greater biofilm formation [ 66 ]. HCN suppresses the growth and metabolism of Cmm , thereby delaying disease development and protecting tomato plants from damage [ 51 ]. Deng et al [ 69 ] showed that P. chlororaphis UFB2 exhibited effective biocontrol activity against C. michiganensis because its genome sequencing has shown that the UFB2 strain harbored genetic islands encoding various secondary metabolites with an antibiotic function [ 69 ].…”

Section: The Use Of Pgprs As An Alternative Biocontrol Strategymentioning

confidence: 99%

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Modes of Action of Biocontrol Agents and Elicitors for sustainable Protection against Bacterial Canker of Tomato

et al. 2023

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Tomato is one of the world’s most commonly grown and consumed vegetables. However, it can be attacked by the Gram-positive bacterium Clavibacter michiganensis subsp. michiganensis (Cmm), which causes bacterial canker on tomato plants, resulting in significant financial losses in field production and greenhouses worldwide. The current management strategies rely principally on the application of various chemical pesticides and antibiotics, which represent a real danger to the environment and human safety. Plant growth-promoting rhizobacteria (PGPR) have emerged as an attractive alternative to agrochemical crop protection methods. PGPR act through several mechanisms to support plant growth and performance, while also preventing pathogen infection. This review highlights the importance of bacterial canker disease and the pathogenicity of Cmm. We emphasize the application of PGPR as an ecological and cost-effective approach to the biocontrol of Cmm, specifying the complex modes of biocontrol agents (BCAs), and presenting their direct/indirect mechanisms of action that enable them to effectively protect tomato crops. Pseudomonas and Bacillus are considered to be the most interesting PGPR species for the biological control of Cmm worldwide. Improving plants’ innate defense mechanisms is one of the main biocontrol mechanisms of PGPR to manage bacterial canker and to limit its occurrence and gravity. Herein, we further discuss elicitors as a new management strategy to control Cmm, which are found to be highly effective in stimulating the plant immune system, decreasing disease severity, and minimizing pesticide use.

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Section: The Use Of Pgprs As An Alternative Biocontrol Strategymentioning

confidence: 80%

Section: Disease Management Strategiesmentioning

confidence: 99%

Section: The Use Of Pgprs As An Alternative Biocontrol Strategymentioning

confidence: 99%

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Modes of Action of Biocontrol Agents and Elicitors for sustainable Protection against Bacterial Canker of Tomato

et al. 2023

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“…Several inoculation methods have been used by different research groups. The main methods used are the scalpel or scissors previously dipped in bacterial suspension (Bulk et al, 1991;Poysa 1993;Francis et al, 2001;Kaneishiro et al,2006;Mohd Nadzir et al, 2019), the root-dipping in bacterial suspension (Poysa 1993;Abo-Elyousr et al, 2019), stem injection of the bacterial suspension with a syringe (Milijašević-Marčić et al, 2012;EPPO, 2016;Osdaghi et al, 2018;Takishita et al, 2018), the soil/media drench method (Mohd Nadzir et al, 2019;Oloyede et al, 2021), and the application of a bacterial solution to a wound (Chalupowicz et al 2017;Thapa et al 2020). Some studies have compared more than one method, finding, for example, that plants showed more symptoms when inoculated with scissors dipped in bacterial suspension than the roots-dipping method (Poysa, 1993).…”

Section: Discussionmentioning

confidence: 99%

Diet and injection, our recommendation to characterizeClavibacter michiganensis- tomato interactions

Brochu

Durivage

Garcia

et al. 2023

Preprint

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Tomato (Solanum lycopersicum L.) is one of the most important vegetables in the world. Its extensive cultivation has made this plant the target of many viral, fungal, and bacterial diseases. Among them, the bacterial canker of tomato caused by Clavibacter michiganensis (Cm) has been named one of the most devastating diseases affecting the tomato industry worldwide. It can significantly reduce the yields and profitability of this crop. One of the big challenges we found when working with Cm and trying to characterize the virulence of different isolates was the lack of a consensus methodology to inoculate tomato plants, how to fertilize them and characterize Cm virulence. This research aimed to identify an artificial inoculation method to induce bacterial canker on tomato plants in greenhouse conditions to homogenize the results of different studies with Cm. We compared two inoculation methods, including the scalpel and syringe method with two levels of fertilization, low and high fertilization. After evaluating several variables like the percentage of necrotic leaves and the height of the plants, the results showed that the syringe inoculation with low fertilization was the most effective inoculation method allowing the development of a multilevel scale that can be used to study the interaction between tomato plants and Cm isolates.

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“…on two micro-propagated bananas and concluded that bacterial consortium is the best-anticipated method to improve vegetative health and survival rates in commercial nurseries. Four isolates, Bacillus subtilis, Pseudomonas aeruginosa, Klebsiella pneumoniae, and Citrobacter youngae were the most effective and consistent PGPR identified ( Tzirita et al, 2018 ; Oloyede et al, 2021 ).…”

Section: Rhizobacterial Consortiummentioning

confidence: 93%

Enhancing plant growth promoting rhizobacterial activities through consortium exposure: A review

Singh

Yadav

Chundawat

et al. 2023

Front. Bioeng. Biotechnol.

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Plant Growth Promoting Rhizobacteria (PGPR) has gained immense importance in the last decade due to its in-depth study and the role of the rhizosphere as an ecological unit in the biosphere. A putative PGPR is considered PGPR only when it may have a positive impact on the plant after inoculation. From the various pieces of literature, it has been found that these bacteria improve the growth of plants and their products through their plant growth-promoting activities. A microbial consortium has a positive effect on plant growth-promoting (PGP) activities evident by the literature. In the natural ecosystem, rhizobacteria interact synergistically and antagonistically with each other in the form of a consortium, but in a natural consortium, there are various oscillating environmental conditions that affect the potential mechanism of the consortium. For the sustainable development of our ecological environment, it is our utmost necessity to maintain the stability of the rhizobacterial consortium in fluctuating environmental conditions. In the last decade, various studies have been conducted to design synthetic rhizobacterial consortium that helps to integrate cross-feeding over microbial strains and reveal their social interactions. In this review, the authors have emphasized covering all the studies on designing synthetic rhizobacterial consortiums, their strategies, mechanism, and their application in the field of environmental ecology and biotechnology.

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Biological control of bacterial canker of tomato (Lycopersicon esculentum Mill.) by use of non-native strains of plant growth-promoting rhizobacteria

Cited by 9 publications

References 24 publications

Modes of Action of Biocontrol Agents and Elicitors for sustainable Protection against Bacterial Canker of Tomato

Modes of Action of Biocontrol Agents and Elicitors for sustainable Protection against Bacterial Canker of Tomato

Diet and injection, our recommendation to characterizeClavibacter michiganensis- tomato interactions

Enhancing plant growth promoting rhizobacterial activities through consortium exposure: A review

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