Entomopathogenic Fusarium species: a review of their potential for the biological control of insects, implications and prospects

Santos, Ana Carla da Silva; Diniz, Athaline Gonçalves; Tiago, Patrícia Vieira; Oliveira, Neiva Tinti de

doi:10.1016/j.fbr.2019.12.002

Cited by 47 publications

(29 citation statements)

References 90 publications

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“…T. asahii may also help to establish a healthy microbiome, given its antimicrobial activity against the pathogenic yeasts Candida glabrata and C. lusitaniae ( Varotto Boccazzi et al, 2017 ). T. asahii and D. rugosa may also protect BSFL from Fusarium species, which are pathogenic to many insects, including the Diptera ( Santos et al, 2020 ). We detected abundant Fusarium species in all feed samples but these potential entomopathogens were completely absent from the guts of BSFL reared on chicken feed and scarce in the guts of BSFL reared on CPC.…”

Section: Discussionmentioning

confidence: 99%

Cottonseed Press Cake as a Potential Diet for Industrially Farmed Black Soldier Fly Larvae Triggers Adaptations of Their Bacterial and Fungal Gut Microbiota

et al. 2021

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Black soldier fly larvae (Hermetia illucens, Diptera: Stratiomyidae) are used for the bioconversion of organic side products into valuable compounds such as proteins, lipids and chitin. However, the economic competitiveness of farmed insects compared to conventional protein production systems in agriculture and aquaculture depends on the availability of large quantities of inexpensive insect feed. Cottonseed press cake (CPC) is a side-stream of cotton production that is rich in proteins and lipids but unsuitable as feed for several farmed animals, except ruminants, due to the presence of the anti-nutritional sesquiterpenoid gossypol. Here, we tested CPC as a feed for black soldier fly larvae and studied the impact of this diet on the gut microbiome. Larvae reared on CPC developed normally and even showed a shorter life-cycle, but were smaller at the end of larval development than control larvae reared on chicken feed. The adaptability of the larvae to different diets is mediated by their versatile gut microbiome, which facilitates digestion and detoxification. We therefore used amplicon sequencing to analyze the bacterial and fungal communities associated with larvae reared on each diet, revealing differences between the larval guts and frass (residual feed substrate) as well as differences between the two diet groups. For example, Actinomycetaceae and Aspergillaceae were significantly enriched in guts of the CPC diet group and may help to metabolize compounds such as gossypol. Potentially probiotic yeasts and beneficial Enterobacteriaceae, which presumably belong to the core microbiota, were detected in high relative abundance in the gut and frass, indicating a functional role of these microbes, especially the protection against pathogens. We conclude that CPC may be suitable as an inexpensive and environmentally sustainable feed for the industrial rearing of black soldier flies.

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Section: Discussionmentioning

confidence: 99%

Cottonseed Press Cake as a Potential Diet for Industrially Farmed Black Soldier Fly Larvae Triggers Adaptations of Their Bacterial and Fungal Gut Microbiota

et al. 2021

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“… 2011 ; Santos et al . 2020 ) and Aspergillus flavus (Leger, Staples and Roberts 1993 ; Seo, Akiyoshi and Ohnishi 1999 ). In comparison to the well-described β-1,3-glucan, the biological activities of α-1,3-glucan remain to be elucidated.…”

Section: Introductionmentioning

confidence: 99%

Activation of cellular immune response in insect model host Galleria mellonella by fungal α-1,3-glucan

Stączek

Zdybicka-Barabas

Wiater

et al. 2020

Pathogens and Disease

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Alpha-1,3-glucan, in addition to β-1,3-glucan, is an important polysaccharide component of fungal cell walls. It is reported for many fungal species, including human pathogenic genera: Aspergillus, Blastomyces, Coccidioides, Cryptococcus, Histoplasma, and Pneumocystis, plant pathogens, e.g. Magnaporthe oryzae, and entomopathogens, e.g. Metarhizium acridum. In human and plant pathogenic fungi, α-1,3-glucan is considered as a shield for the β-1,3-glucan layer preventing recognition of the pathogen by the host. However, its role in induction of immune response is not clear. In the present study, the cellular immune response of the greater wax moth Galleria mellonella to Aspergillus niger α-1,3-glucan was investigated for the first time. The changes detected in the total hemocyte count (THC) and differential hemocyte count (DHC), formation of hemocyte aggregates, and changes in apolipophorin III localization indicated activation of G. mellonella cellular mechanisms in response to immunization with A. niger α-1,3-glucan. Our results, which have clearly demonstrated the response of the insect immune system to this fungal cell wall component, will help in understanding the α-1,3-glucan role in immune response against fungal pathogens not only in insects but also in mammals, including humans.

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“…The FIESC and FFSC isolates obtained from the citrus blackfly showed excellent confirmed mortality values. These species complexes are reported in the literature as the richest in insecticolous lineages (O’Donnell et al., 2012), and in number of entomopathogenic isolates, including those with a high potential for controlling insect pests (Santos et al., 2020).…”

Section: Discussionmentioning

confidence: 99%

Entomopathogenicity of fungi in combination with Ricinus communis extract for the control of Aleurocanthus woglumi

Barbosa

Santos

Diniz

et al. 2021

Entomologia Exp Applicata

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Citrus is among the most important crops in the world, and has suffered losses of up to 80% due to the citrus blackfly, Aleurocanthus woglumi Ashby (Hemiptera: Aleyrodidae). The combined use of entomopathogenic fungi and plant extracts is a sustainable alternative to control this pest. The objectives of this study were to select entomopathogenic fungi to control A. woglumi and verify the insecticidal effect of the combined use of the selected fungi and aqueous extracts of castor bean leaves, Ricinus communis L. (Euphorbiaceae). Twenty fungal isolates obtained from field‐collected dead A. woglumi were identified and tested against the insect. Eight were identified as belonging to Fusarium incarnatum‐equiseti species complex, nine to Fusarium fujikuroi species complex, two to Cordyceps javanica (Bally) Kepler, B. Shrestha & Spatafora, and one to genus Akanthomyces. The five isolates that caused the maximum confirmed mortality were tested for compatibility with aqueous castor bean extract at 5, 10, and 20% (wt/vol) concentrations. Qualitative phytochemical analysis showed the presence of alkaloids, glycoside flavonoids, saponins, and tannins in the castor bean extract. Most of the isolates studied caused high confirmed mortality of citrus blackfly. In the compatibility tests, Fusarium volatile Al‐Hatmi, Sand.‐Den., SA Ahmed & de Hoog and Fusarium proliferatum (Matsush.) Nirenberg ex Gerlach & Nirenberg combined with the 5% aqueous extract were the most suitable for testing against A. woglumi. Additive interactions were observed for the combined control agents. The highest value of confirmed mortality (98.2%) was observed for the combination of 5% aqueous castor bean extract and F. volatile (URM 8051), the efficacy of which should be confirmed by field tests.

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Entomopathogenic Fusarium species: a review of their potential for the biological control of insects, implications and prospects

Cited by 47 publications

References 90 publications

Cottonseed Press Cake as a Potential Diet for Industrially Farmed Black Soldier Fly Larvae Triggers Adaptations of Their Bacterial and Fungal Gut Microbiota

Cottonseed Press Cake as a Potential Diet for Industrially Farmed Black Soldier Fly Larvae Triggers Adaptations of Their Bacterial and Fungal Gut Microbiota

Activation of cellular immune response in insect model host Galleria mellonella by fungal α-1,3-glucan

Entomopathogenicity of fungi in combination with Ricinus communis extract for the control of Aleurocanthus woglumi

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