Current status and perspectives of fungal entomopathogens used for microbial control of arthropod pests in Brazil

Mascarin, Gabriel Moura; Lopes, Rogério Biaggioni; Delalibera, Ítalo; Fernandes, Éverton K. K.; Luz, Christian

doi:10.1016/j.jip.2018.01.001

Cited by 163 publications

(99 citation statements)

References 70 publications

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“…Entomopathogenic fungi are typically present within natural insect populations and are often solely considered as effective microbial control agents in integrated pest management [1][2][3][4]. The use of fungal insect pathogens may have certain advantages over the use of parasitoids and insecticides such as efficiency and environmental safety [5].…”

Section: Introductionmentioning

confidence: 99%

Effects of the Entomopathogenic Fungus Metarhizium anisopliae on the Mortality and Immune Response of Locusta migratoria

Jiang

Peng

et al. 2019

Insects

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Entomopathogenic fungi are the key regulators of insect populations and some of them are important biological agents used in integrated pest management strategies. Compared with their ability to become resistant to insecticides, insect pests do not easily become resistant to the infection by entomopathogenic fungi. In this study, we evaluated the mortality and immune response of the serious crop pest Locusta migratoria manilensis after exposure to a new entomopathogenic fungus strain, Metarhizium anisopliae CQMa421. M. anisopliae CQMa421 could effectively infect and kill the L. migratoria adults and nymphs. The locust LT50 under 1 × 108 conidia/mL concentration of M. anisopliae was much lower than that under conidial concentration 1 × 105 conidia/mL (i.e., 6.0 vs. 11.2 and 5.0 vs. 13.8 for adults and nymphs, respectively). The LC50 (log10) of M. anisopliae against locust adults and nymphs after 10 days was 5.2 and 5.6, respectively. Although the number of hemocytes in L. migratoria after exposure to M. anisopliae did not differ with that in the controls, the enzymatic activity of superoxide dismutase (SOD) and prophenoloxidase (ProPO) did differ between the two treatments. The activities of both SOD and ProPO under the M. anisopliae treatment were lower than that in the controls, except for the ProPO activity at 72 h and the SOD activity at 96 h. Further, the expression of the L. migratoria immune-related genes defensin, spaetzle, and attacin differed after exposure to M. anisopliae for 24 h to 96 h. Taken together, this study indicated that infection with M. anisopliae CQMa421 could cause the death of L. migratoria by interacting with the immune responses of the host, demonstrating that this fungal strain of M. anisopliae can be an efficient biocontrol agent against L. migratoria.

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Section: Introductionmentioning

confidence: 99%

Effects of the Entomopathogenic Fungus Metarhizium anisopliae on the Mortality and Immune Response of Locusta migratoria

Jiang

Peng

et al. 2019

Insects

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“…Efforts to develop specific mycoinsecticide for mosquito control are still in early stages (Faria and Wraight ; Mascarin et al . ). There is now a first commercialized product based on Beauveria bassiana (Hypocreales, Cordycipitaceae) intended for use against A. aegypti in over 30 countries worldwide (http://www.in2care.org/mosquito-trap/registrations/ accessed 30 May 2018).…”

Section: Introductionmentioning

confidence: 97%

Characterization of Tolypocladium cylindrosporum (Hypocreales, Ophiocordycipitaceae) isolates from Brazil and their efficacy against Aedes aegypti (Diptera, Culicidae)

et al. 2018

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“…Tropical environments support impressive microbial biodiversity (Thompson et al, 2017), including many parasites of arthropods (Mahe et al, 2017). However, by far the most common commercially available EPF in tropical and subtropical agroecosystems belong to two genera: Beauveria and Metarhizium (Ascomycota: Hypocreales) (Faria and Wraight, 2007;Li et al, 2010;Kumar et al, 2018;Mascarin et al, 2019). Here, we review literature focused on controlling arthropod pests with entomopathogens, with particular emphasis on these two genera.…”

Section: Introductionmentioning

confidence: 99%

Tropical Occurrence and Agricultural Importance of Beauveria bassiana and Metarhizium anisopliae

McGuire

Northfield

2020

Front. Sustain. Food Syst.

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Entomopathogenic fungi are often relied on as important components of integrated pest management in tropical agriculture, either as biopesticides or as naturally occurring microbes conserved in the environment. Tropical abiotic conditions are often well-suited for microbial growth, and tropical habitats can be teeming with microbial biodiversity. However, competitive interactions with other fungi and the need to overcome defenses of hosts adapted to high fungal loads may inhibit the ability of insect pathogens to control tropical pests. Here, we review the current literature on Beauveria bassiana and Metarhizium anisopliae inhabiting tropical environments and their potential use as biological control agents. In some cases there is not a clear distinction between temperate and tropical agroecosystems, such as in the level of organic matter or soil texture in agricultural soils. Therefore, the effects of these soil characteristics in temperate agroecosystems are likely applicable to tropical systems as well. In contrast, factors such as microbial biodiversity and seasonal fluctuation in environmental conditions can differ dramatically between temperate and tropical systems. Therefore, we discuss literature that can be generalized to tropical systems. Where temperate and tropical systems are likely to differ we synthesize the literature specifically for tropical agroecosystems. We also provide hypotheses to stimulate future work on latitudinal gradients and the relative importance of biotic and abiotic factors in governing entomopathogen prevalence and community composition. These hypotheses provide a path forward to developing theory guiding the conservation and augmentation of entomopathogenic fungi to prevent pest outbreaks.

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Current status and perspectives of fungal entomopathogens used for microbial control of arthropod pests in Brazil

Cited by 163 publications

References 70 publications

Effects of the Entomopathogenic Fungus Metarhizium anisopliae on the Mortality and Immune Response of Locusta migratoria

Effects of the Entomopathogenic Fungus Metarhizium anisopliae on the Mortality and Immune Response of Locusta migratoria

Characterization of Tolypocladium cylindrosporum (Hypocreales, Ophiocordycipitaceae) isolates from Brazil and their efficacy against Aedes aegypti (Diptera, Culicidae)

Tropical Occurrence and Agricultural Importance of Beauveria bassiana and Metarhizium anisopliae

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