Microbial Antagonists from Different Environments Used in the Biocontrol of Plant Pathogens

Droby, Samir; González-Estrada, Ramsés R.; Ávila-Quezada, Graciela Dolores; Durán, Paola; Manzo-Sánchez, Gilberto; Hernández-Montiel, Luis Guillermo

doi:10.1007/978-3-030-87289-2_9

Cited by 5 publications

(3 citation statements)

References 86 publications

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“…Hence the application of e cient biological methods is essential to minimise the use of hazardous synthetic agents for post-harvest applications. Several microbial biocontrol agents have the potential to be applied against the pathogenic and spoilage causing microorganisms for post-harvest protection (Droby et al 2022).…”

Section: Discussionmentioning

confidence: 99%

Post-harvest protective applications of rhamnolipid producing phyllospheric Pseudomonas sp. MP 11 isolated from Musa acuminata

George¹,

Theresa²,

Geevarghese³

et al. 2022

Preprint

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Microorganisms residing within the diverse parts of plants play a significant role in the plant growth and defence response. Hence, the current study emphasized the isolation and screening of plant-beneficial traits of isolates obtained from leaves of Musa acuminata cultivated in Kottayam, Kerala. Among the many isolates obtained during screening, MP 11 was found to have promising activity against the tested phytopathogens viz. Fusarium rolfsii, Pythium aphanidermatum, Phytophthora infestans, Sclerotium rolfsii. This isolate was further identified as Pseudomonas sp. by the 16S rRNA-based sequence analysis. Additionally, the isolate was analysed for various plant growth promoting traits, whereby it showed its capability to solubilise zinc and phosphate, IAA, HCN and ACC deaminase production. MP 11 also showed potential to provide post-harvest protection to the rice seeds from P. aphanidermatum and S. rolfsii. Based on all these properties, the isolated PGPB could be developed into a formulation which would induce multiple beneficial impacts in the production of rice.

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Section: Discussionmentioning

confidence: 99%

Post-harvest protective applications of rhamnolipid producing phyllospheric Pseudomonas sp. MP 11 isolated from Musa acuminata

George¹,

Theresa²,

Geevarghese³

et al. 2022

Preprint

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“…According to Thambugala et al, (2020), a variety of fungal species possess defense mechanisms that allow them to effectively shield plants from diseases brought on by plant pathogenic fungi. It has been demonstrated that antagonistic microorganisms, which may be obtained from a variety of settings, are more effective than synthetic pesticides at managing plant diseases (Droby et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Antagonism and mycoparasitism mechanism of T. harzianum against pathogenic fungus species of F. oxysporum and Capnodium sp.

Mustofa,

Hastuti

2024

Inornatus Biol. Educ. J.

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The purpose of this study was to test the ability of T. harzianum to inhibit the growth of pathogenic mold species and to determine the effectiveness of T. harzianum mold species in inhibiting the growth of pathogenic molds, as well as investigate how T. harzianum and pathogenic molds interact with each other. The Microbiology Laboratory of the Department of Biology, Faculty of Mathematics and Natural Sciences, State University of Malang, is where this research was conducted. The dual culture method was used for this test by using Czapek Agar (CA) medium. The isolated molds were then incubated for 4x24 hours at 25O–27OC. After that, the antagonism power was calculated. The results of macroscopic and microscopic observations were used to assess the mechanism of T. harzianum mold antagonism against pathogenic molds. The results showed that Trichoderma mold species were more resistant to the pathogenic mold Fusarium oxysporum than the pathogenic mold Capnodium. The antagonistic power of T. harzianum was 80%, with the antagonistic power of Capnodium sp. at 66.7%. The mechanism of mycoparasitism occurs when the hyphae of T. harzianum attach or entangle the hyphae of pathogenic molds, causing damage to the hyphal structure and inhibiting the growth of pathogenic molds.

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“…On the other hand, antagonists have been used successfully for controlling important pathogens such as Colletotrichum gloeosporioides [15,16], Fusarium proliferatum [17], Botrytis cinerea [18], Penicillium digitatum [19] and Penicillium italicum [20]. Marine yeast Debaryomyces hansenii can control phytopathogens throughout several mechanisms of action such as the synthesis of hydrolytic enzymes (chitinase, glucanase, protease), competition for space and nutrients, production of killer toxins and biofilms onto the fruit surface, thus the use of antagonistic D. hansenii to manage fungal diseases is a promising alternative to chemical management [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Influence of Marine Yeast Debaryomyces hansenii on Antifungal and Physicochemical Properties of Chitosan-Based Films

García-Bramasco

Blancas‐Benítez

Montaño-Leyva

et al. 2022

JoF

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Chitosan-based film with and without antagonistic yeast was prepared and its effect against Penicillium italicum was evaluated. The biocompatibility of yeast cells in the developed films was assessed in terms of population dynamics. Furthermore, the impact on physicochemical properties of the prepared films with and without yeast cells incorporated were evaluated in terms of thickness, mechanical properties, color and opacity. Chitosan films with the antagonistic yeast entrapped exhibited strong antifungal activity by inhibiting the mycelial development (55%), germination (45%) and reducing the sporulation process (87%). Chitosan matrix at 0.5% and 1.0% was maintained over 9 days of cell viability. However, at 1.5% of chitosan the population dynamics was strongly affected. The addition of yeast cells only impacted color values such as a*, b*, chroma and hue angle when 1.0% of chitosan concentration was used. Conversely, luminosity was not affected in the presence of yeast cells as well as the opacity. Besides, the addition of antagonistic yeast improved the mechanical resistance of the films. The addition of D. hansenii in chitosan films improve their efficacy for controlling P. italicum, and besides showed desirable characteristics for future use as packaging for citrus products.

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Microbial Antagonists from Different Environments Used in the Biocontrol of Plant Pathogens

Cited by 5 publications

References 86 publications

Post-harvest protective applications of rhamnolipid producing phyllospheric Pseudomonas sp. MP 11 isolated from Musa acuminata

Post-harvest protective applications of rhamnolipid producing phyllospheric Pseudomonas sp. MP 11 isolated from Musa acuminata

Antagonism and mycoparasitism mechanism of T. harzianum against pathogenic fungus species of F. oxysporum and Capnodium sp.

Influence of Marine Yeast Debaryomyces hansenii on Antifungal and Physicochemical Properties of Chitosan-Based Films

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