Foliar application of the leaf-colonizing yeast Pseudozyma churashimaensis elicits systemic defense of pepper against bacterial and viral pathogens

Lee, Gahyung; Lee, Sang‐Heon; Kim, Kyung Mo; Ryu, Choong‐Min

doi:10.1038/srep39432

Cited by 49 publications

(27 citation statements)

References 72 publications

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“…Finally, oomycete biocontrol efficiency and plant growth promoters are related to the capacity of the microorganisms to colonize and persist in plant roots and displace the host phytopathogen [59,60]. Therefore, it is important to select organisms that are capable of colonizing the plant rhizosphere rapidly and have prolonged persistence though time [61].…”

Section: Discussionmentioning

confidence: 99%

Efficiency of Marine Bacteria and Yeasts on the Biocontrol Activity of Pythium ultimum in Ancho-Type Pepper Seedlings

et al. 2020

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Ancho-type pepper (Capsicum annuum L.) is a crop susceptible to Pythium ultimum, which has already been controlled with synthetic fungicide applications; however, marine antagonist microorganisms could be an alternative source of control. The efficiency in vitro and in vivo of marine bacteria and yeasts was determined against P. ultimum. The inhibition of the radial growth of P. ultimum was quantified in vitro by the bacteria Stenotrophomonas rhizophila KM01 and KM02; Bacillus subtilis RBM01 and RBM02, B. amyloliquefaciens 2RLBF and 3R4CF; and Pseudomonas spp. 2R6BF and 2RE9CF, as well as the yeasts Debaryomyces hansenii 1R11AB, 1R11CB, and LL01 and Cryptococcus laurentii 2R3BF and 2R1CB. The β-1,3-glucanase activity of the marine microorganisms was quantified in the presence of the phytopathogen. The disease index (DI), growth parameters, and colony forming units (CFU) were determined in ancho-type pepper plants inoculated with marine bacteria, yeasts, and P. ultimum. The radial zone of the phytopathogen was inhibited by 80% and 75% by S. rhizophila KM01 and C. laurentii 2R1CB, respectively. D. hansenii LL01 and S. rhizophila KM02 showed the highest activity of β-1,3-glucanase, with 6060 U/mL and 47 U/mL, respectively. B. subtilis RBM02 protected 100% of the plants from the oomycete, and an increase was quantified in all the growth parameters and CFU. The use of these marine bacteria and yeasts are, therefore, an option for P. ultimum biocontrol in ancho-type pepper plants, thereby minimizing the application of synthetic fungicides.Agronomy 2020, 10, 408 2 of 12 by immediate infection makes management of this phytopathogen very difficult [7]. Several Pythium species, including P. aphanidermatum, P. irregular, and P. ultimum, are known to cause damping-off and root rot diseases in pepper [8][9][10]. Although synthetic fungicides have shown promising results in controlling damping-off disease, phytotoxicity and fungicide residues pose serious problems to human and animal health, as well as the environment. In this context, phytosanitary measures and the management of pepper cultivation should include the application of microorganisms as biocontrol agents to minimize the use of synthetic fungicides [11].Bacteria and yeasts have a high capacity to control phytopathogens without causing damage to human and animal health and the environment [12,13]. Several mechanisms have been proposed for the biocontrol of phytopathogens by bacteria and yeasts, including competition for space and nutrients [14,15], lytic enzyme production such as β-1,3-glucanase [16,17], and induction of host resistance [18,19], among others. Both microorganisms have been isolated in different terrestrial ecosystems, mainly in plants, fruits, and soils; the main bacteria used as biocontrol agents are species of Stenotrophomonas, Bacillus, and Pseudomonas, which have already been reported for the control of Fusarium proliferatum in melon [20]; Sclerotium rolfsii [21] and Rhizoctonia solani in wheat [22]; and F. solani in cassava [23], among others. O...

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Section: Discussionmentioning

confidence: 99%

Efficiency of Marine Bacteria and Yeasts on the Biocontrol Activity of Pythium ultimum in Ancho-Type Pepper Seedlings

et al. 2020

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“…The yeast was able to boost plant immunity through the induction of plant pathogenesis-related genes involved in the salicylic/jasmonic acid signaling pathway (CaPR4) and ethylene (CaPR5) signaling pathway (Lee et al 2017). Whenever microbes succeed in infecting a plant, the cellular level of hydrogen peroxide will increase as well as the deposition of callose in the affected plant part as a first line of defense response by the plant (Nie et al 2017).…”

Section: Microbial Induction Of Systemic Resistance In Plant To Biotimentioning

confidence: 99%

The impact of microbes in the orchestration of plants’ resistance to biotic stress: a disease management approach

Enebe

Babalola

2018

Appl Microbiol Biotechnol

122

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The struggle for survival is a natural and a continuous process. Microbes are struggling to survive by depending on plants for their nutrition while plants on the other hand are resisting the attack of microbes in order to survive. This interaction is a tug of war and the knowledge of microbe-plant relationship will enable farmers/agriculturists improve crop health, yield, sustain regular food supply, and minimize the use of agrochemicals such as fungicides and pesticides in the fight against plant pathogens. Although, these chemicals are capable of inhibiting pathogens, they also constitute an environmental hazard. However, certain microbes known as plant growth-promoting microbes (PGPM) aid in the sensitization and priming of the plant immune defense arsenal for it to conquer invading pathogens. PGPM perform this function by the production of elicitors such as volatile organic compounds, antimicrobials, and/or through competition. These elicitors are capable of inducing the expression of pathogenesis-related genes in plants through induced systemic resistance or acquired systemic resistance channels. This review discusses the current findings on the influence and participation of microbes in plants’ resistance to biotic stress and to suggest integrative approach as a better practice in disease management and control for the achievement of sustainable environment, agriculture, and increasing food production.

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“…Thus, G. LEE & al. [34] indicated the biosurfactant produced by Pseudozyma spp. as possible factor in the lipid-mediated pepper plants systemic defense against Xanthomonas axonopodis infection.…”

Section: Biocontrolmentioning

confidence: 99%

Candida –produced biosurfactants– beneficial agents for environmental remediation biotechnologies

Corbu¹,

Csutak²

2019

Rom Biotechnol Lett.

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Although the Candida genus is extensively studied mainly due to its pathogenicity and virulence, the genus comprises numerous species and strains isolated from industrial or natural environments (soil, plants, a.s.o.). Due to their specific metabolic abilities, these strains are able to synthesize compounds with high economic value such as lipids, lipases, fatty acids and biosurfactants using low cost substrates including industrial and household wastes. The biosurfactants represent an advantageous ecologic alternative for synthetic surfactants for a wide range of biotechnological and industrial applications. Bioremediation of polluted soils, including those used in agriculture, represent a challenging domain in which the Candida-produced biosurfactants can be successfully used for in situ as well as ex situ technologies. The biosurfactants are also important biocontrol agents for crop protection. Therefore, during the last decades many studies were developed concerning the classification, gene regulation and optimization of parameters for obtaining biosurfactants from Candida sp.

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Foliar application of the leaf-colonizing yeast Pseudozyma churashimaensis elicits systemic defense of pepper against bacterial and viral pathogens

Cited by 49 publications

References 72 publications

Efficiency of Marine Bacteria and Yeasts on the Biocontrol Activity of Pythium ultimum in Ancho-Type Pepper Seedlings

Efficiency of Marine Bacteria and Yeasts on the Biocontrol Activity of Pythium ultimum in Ancho-Type Pepper Seedlings

The impact of microbes in the orchestration of plants’ resistance to biotic stress: a disease management approach

Candida –produced biosurfactants– beneficial agents for environmental remediation biotechnologies

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