Pathogenicity of three entomopathogenic fungi, to the aphid species, Metopolophium dirhodum (Walker) (Hemiptera: Aphididae), and their Alkaline protease activities

Abdelaziz, Ouidad; Senoussi, Mohamed Mourad; Oufroukh, Amar; Birgücü, Ali Kemal; Karaca, İsmail; Benkenana, Naima; Bensegueni, Abderrahmane

doi:10.1186/s41938-018-0030-7

Cited by 18 publications

(12 citation statements)

References 20 publications

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“…Efficacy of B. bassiana against M. persicae aphids was evaluated under controlled conditions with the concentration of 1 × 10 7 conidia mL −1 and found that three isolates of B. bassiana (BAU004, BAU018 and BAU019) showed high virulence against test aphids with a mortality of more than 75% [36]. Similarly, the results of our study are in accordance with those found by [29,[37][38][39]. However, the findings of some studies are different from ours.…”

Section: Discussionsupporting

confidence: 90%

In Vitro Pathogenicity of Some Entomopathogenic Fungal Strains against Green Peach Aphid Myzus persicae (Homoptera: Aphididae)

et al. 2018

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Green peach aphid, Myzus persicae (Hemiptera: Aphididae), is an economically important pest of crops within more than 40 plant families all over the world. This study encompasses in-vitro pathogenicity of two strains of Beauveria bassiana (BB-72 and BB-252) and one strain of Lecanicillium lecanii (V-4) against green peach aphid (M. persicae). Using a leaf-dip method, three different bioassays were conducted comprised of filtrates and conidial concentrations of BB-72, BB-252 and V-4 fungal strains and their binary combinations. Infiltrate bioassays, 2 mL fungal filtrate of each strain was used. In conidial bioassays, three different concentrations (i.e., 1 × 106, 1 × 107 and 1 × 108 conidia mL−1) of each fungal strain were used, while in binary combination bioassays, LC50 and LC33 of these fungal strains were evaluated. According to the results, maximum pathogenicity against test aphids was observed at 10th day of all treatments. Both strains of B. bassiana (BB-72 and BB-252) exhibited higher mortality of aphids (up to 95 and 91%, respectively) than L. lecanii (V-4) strain (87%) in all three types of bioassays. Moreover, binary combinations of BB-72 and BB-252 strains showed significantly higher aphid mortality (94%) than other combinations. Reduced mortality in case of fungal combinations of V-4 strain might be due to the antagonistic effect of L. lecanii strain along with both strains of B. bassiana. Nevertheless, evaluation of combined pathogenicity of the fungal strains constitutes the novelty of this in-vitro study which revealed that both strains of B. bassiana (i.e., BB-72 and BB-252) are mutually compatible and can be utilized together as new biocontrol tools against destructive insect pests such as M. persicae.

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Section: Discussionsupporting

confidence: 90%

In Vitro Pathogenicity of Some Entomopathogenic Fungal Strains against Green Peach Aphid Myzus persicae (Homoptera: Aphididae)

et al. 2018

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“…It was also reported that at concentrations of 10 7 and 10 8 conidia mL −1 of V. lecanii, the maximum mortality rate of M. persicae was recorded as 100% after 12 days of application [40]. Similarly, the effect of B. bassiana on M. persicae was also determined under the controlled condition with the concentration of 1 × 10 7 conidia mL −1 and showed that three strains of B. bassiana (BAU019, BAU004, and BAU018) showed high effect on aphids, with a mortality of over 75% [34,[41][42][43][44]. According to filtrate treatment, our results are similar to results which revealed that degradation of the insect body was observed at higher infiltrate treated aphids, and the reduction of aphid population was higher in higher dose filtrate treatment [27].…”

Section: Discussionmentioning

confidence: 99%

Biocontrol Potential of Some Entomopathogenic Fungal Strains Against Bean Aphid Megoura japonica (Matsumura)

Trinh

Qiu

2020

Agriculture

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This research reported the in vitro pathogenicity of Verticillium lecanii strains, L2 and L5, and Beauveria bassiana strains, B76 and B252, against Megoura japonica using leaf-dip method. The virulence potential of these four entomopathogenic fungal strains of V. lecanii and of B. bassiana were compared between fungi conidia (concentrations 1 × 106, 1 × 107, and 1 × 108 conidia mL−1) and culture filtrate. Moreover, binary combination of four different fungal strains (L2 + B76, B76 + L5, L2 + B252, and L2 + B76 + B252 + L5) were evaluated against M. japonica under control condition. Aphid mortality was recorded after two, four, six, and eight days of post-treatment. In the conidial concentration bioassay, strain B76 showed maximal mortality (85.3%) against bean aphid, and strain L5 showed the lowest effect (60.0%) at the highest concentration (1 × 108 conidia mL−1) at eight days post-treatment. Whereas, binary combinations of B76 and L2 strains showed the highest effect against M. japonica (90.5%) than other combinations. Moreover, in comparison with the effect of filtrate and conidia bioassay, 91.4% and 84.1% were achieved in strain B76, and the lowest effect (63.8% and 55.1%) was recorded in strain L5.

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“…Preparation of fungi cultures and spore suspensions B. bassiana, V. alfalfae, and T. viride were defined morphologically and isolated from the soil of a wheat field at the National Plant Protection Institute (INPV-National Institute of Plant Protection of Constantine, Constantine, Algeria) following the method of Vinayaga Moorthi et al (2015) and Abdelaziz et al (2018). To isolate the fungi, 1 g of the soil was diluted in 9 ml of sterile distilled water; then, 100 μl from the 10 −3 , 10 −4 , and 10 −5 dilutions of these suspensions was planted on potato dextrose agar (PDA: 200 g potatoes, 20 g glucose, and 20 g agar), supplemented with chloramphenicol (10 mg l −1 ).…”

Section: Production Of Host Plants and Aphidsmentioning

confidence: 99%

Effects of some entomopathogenic fungi on the aphid species, Aphis gossypii Glover (Hemiptera: Aphididae)

Erol

Abdelaziz

Birgücü

et al. 2020

Egypt J Biol Pest Control

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Background Effects of the entomopathogenic fungi Beauveria bassiana, Verticillium alfalfae, and Trichoderma viride; secondary metabolites of MS1 (B. bassiana) and MS2 (V. alfalfae); and Dimethoate active substances on the aphid species, Aphis gossypii Glover (Hemiptera: Aphididae), were tested. Main body of the abstract Fungus isolates were prepared as 107 conidia ml−1 of spore suspensions and applied on the 2nd instar nymphs of A. gossypii. After the applications, evaluations were made on the 1st, 3rd, 5th, and 7th days by counting the live individuals. Obtained data were 100 and 93% mortality rate at MS1 (B. bassiana) and MS2 (V. alfalfae), and secondary metabolites were recorded in the 3rd day count results. On the 5th day counts, the highest mortality rates after secondary metabolites were statistically at the same group with B. bassiana, T. viride, and dimethoate. On the 7th day, counting results of all experiment groups were analyzed statistically and were found effective. Short conclusion Obtained results showed that the fungal secondary metabolites might be useful when utilized as a biocontrol agent against the aphids.

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Pathogenicity of three entomopathogenic fungi, to the aphid species, Metopolophium dirhodum (Walker) (Hemiptera: Aphididae), and their Alkaline protease activities

Cited by 18 publications

References 20 publications

In Vitro Pathogenicity of Some Entomopathogenic Fungal Strains against Green Peach Aphid Myzus persicae (Homoptera: Aphididae)

In Vitro Pathogenicity of Some Entomopathogenic Fungal Strains against Green Peach Aphid Myzus persicae (Homoptera: Aphididae)

Biocontrol Potential of Some Entomopathogenic Fungal Strains Against Bean Aphid Megoura japonica (Matsumura)

Effects of some entomopathogenic fungi on the aphid species, Aphis gossypii Glover (Hemiptera: Aphididae)

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