Inhibitory effect of Trichoderma harzianum on mycelial growth of Fusarium oxysporum f. sp. radicis-lycopersici and Alternaria solani

Lakhdari, Wassima; Dehliz, Abderrahmène; Mlik, Randa; Hamida, Hammi; Benlamoudi, Wiam; Acheuk, Fatma; Doumandji-Mitiche, Bahia

doi:10.1007/s13165-017-0186-6

Cited by 2 publications

(2 citation statements)

References 7 publications

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“…Higher concentrations (3% and 4%) resulted in more fatalities when compared to lower values (1% and 2%). This nding is similar with previous study that revealed concentration-dependent insecticidal activity in plant extracts(Lakhdari et al, 2015;Moustafa et al, 2021;Deka et al, 2022). Higher concentrations may result in higher quantities of bioactive chemicals in extracts, which may lead to enhanced toxicity against dust mites(Ngegba et al, 2022).…”

supporting

confidence: 92%

Acaridical activity of plant extracts to control Date palm fruit dust mite Oligonychus afrasiaticus (McGregor) (Acari Tetranchidae)

Ali

Fhaid

Awad

2023

Preprint

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This study aimed to determine the variables that influence the mortality rate of Oligonychus afrasiaticus (McGregor) (Acari Tetranchidae) dust mites and to explore potential control options for this pest. The important variables that were examined at included plant species, extraction method, concentration, and time. The findings indicated noteworthy impacts of these variables on the mortality rates of dust mites. The mortality rates of dust mites were significantly affected by the type of plant species (p < 0.01). The highest mortality rates were observed with Cymbopogon citratus, whereas there was no significant variation between Vitexm agnus-castus and Melilotus officinalis. The extraction method was Influential (p < 0.01), with ethanol extract performing better than aqueous and hexane extracts in terms of efficacy. Aqueous extraction had a lower efficacy than hexane extraction. The concentration of plant extract considerably affected the mortality rates of dust mites (p < 0.01). increased concentrations led to significantly increased mortality rates, demonstrating a concentration-dependent impact. Dust mite mortality rates were also affected by exposure duration (p 0.01). When the exposure period was increased, the mortality rate increased considerably. Significant differences in mortality rates have been observed for each time period (6, 12, 24, and 48 hours). These findings emphasize the importance of selecting appropriate plant species, utilizing effective extraction methods, optimizing concentration levels, and considering exposure duration for designing efficient dust mite control strategies. Cymbopogon citratus, especially when extracted with ethanol and applied at higher concentrations, has the potential to be a natural dust mite control treatment.

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supporting

confidence: 92%

Acaridical activity of plant extracts to control Date palm fruit dust mite Oligonychus afrasiaticus (McGregor) (Acari Tetranchidae)

Ali

Fhaid

Awad

2023

Preprint

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“…Production of Antifungal Enzymes and Compounds: T. harzianum produces various lysing enzymes and volatile organic compounds that have antifungal activity. Enhancement of Plant Resistance: T. harzianum can increase the systemic resistance of plants to F. oxysporum (Chen et al, 2019;Lakhdari et al, 2018;Meddad-Hamza et al, 2023). However, the effectiveness of T. harzianum against Capnodium fungi may differ and depends on several factors, such as the strain of T. harzianum used, environmental conditions, and the specific interaction between T. harzianum and Capnodium fungi.…”

Section: Morphological Observation Of Antagonistic and Pathogenic Moldsmentioning

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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Inhibitory effect of Trichoderma harzianum on mycelial growth of Fusarium oxysporum f. sp. radicis-lycopersici and Alternaria solani

Cited by 2 publications

References 7 publications

Acaridical activity of plant extracts to control Date palm fruit dust mite Oligonychus afrasiaticus (McGregor) (Acari Tetranchidae)

Acaridical activity of plant extracts to control Date palm fruit dust mite Oligonychus afrasiaticus (McGregor) (Acari Tetranchidae)

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

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