The fungistatic and fungicidal effects of volatiles from metathoracic glands of soybean-attacking stink bugs (Heteroptera: Pentatomidae) on the entomopathogen Beauveria bassiana

Lopes, Rogério Biaggioni; Laumann, R. A.; Blassioli‐Moraes, Maria Carolina; Borges, Miguel; Faria, Marcos

doi:10.1016/j.jip.2015.08.011

Cited by 43 publications

(17 citation statements)

References 35 publications

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“…Previous studies described the proportions and release biases among species, genders, and developmental stages (Kuhar and Kamminga, 2017 ; Weber et al, 2017b ). A number of key components separated from several stink bug species have multiple functions, including prompting generalist predator avoidance (Noge and Becerra, 2012 ), delivering antifungal and antibacterial substances (Lopes et al, 2015 ; Sagun et al, 2016 ), and accelerating the locating of hosts by parasitoids (Zhong et al, 2017 ).…”

Section: Introductionmentioning

confidence: 99%

Behavioral Evidence and Olfactory Reception of a Single Alarm Pheromone Component in Halyomorpha halys

et al. 2018

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Halyomorpha halys is a major herbivore insect in the fruit orchards of China that has become a devastating invasive pest in North America and Europe since its accidental introductions in the 1990s and 2000s, respectively. Like other hemipteran insects, H. halys releases defensive chemicals against natural enemies, including (E)-2-decenal, which is an aldehyde associated with alarm pheromones. In this study, a series of electrophysiological and behavioral tests were conducted to characterize the alarm functions of (E)-2-decenal among H. halys adults and nymphs. An antennal transcriptome was obtained from a Chinese H. halys population, and 44 odorant-binding protein (OBP) genes were annotated. Among them, five putative alarm pheromone-binding proteins were screened and were extremely consistent with their homologs from US populations. These five OBPs were later expressed in a heterologous expression system, harvested, and then challenged with (E)-2-decenal in a binding assay. All five OBPs showed high binding activities to (E)-2-decenal, which demonstrated its behavioral significance as a defensive component in H. halys, as well as being the first report of its olfactory reception. These findings will help develop behavioral-mediating tools as part of integrated pest management approaches to control this invasive pest.

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Section: Introductionmentioning

confidence: 99%

Behavioral Evidence and Olfactory Reception of a Single Alarm Pheromone Component in Halyomorpha halys

et al. 2018

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“…To better understand this premise, the interactions among insect pests, their natural enemies and their host plants must be intensely studied. For example, susceptibility may be affected by components of the insect cuticle, seeing that conidia may suffer from toxicity, fungistatic effects and eventual stimulating effects (Sosa-Gómez et al 1997;Gillespie et al 2000;Santiago-Alvarez et al 2006) by compounds in the cuticle of the insects, those sequestrated from alimentary sources (Tallamy et al 1998), or even through volatiles produced by metathoracic glands (Lopes et al 2015). This effect has been demonstrated for fungi (Nishida et al 1992;Tallamy et al 1998;Poprawski et al 2000a;Poprawski et al 2000b;Klingen et al 2002).…”

Section: Discussionmentioning

confidence: 98%

Biological Parameters of Euschistus heros (F.) (Heteroptera: Pentatomidae) and its Susceptibility to Entomopathogenic Fungi When Fed on Different Diets

Oliveira¹,

Dudczak

Alves

et al. 2016

Braz. arch. biol. technol.

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“…Females of some insect species deposit antimicrobial chemicals (Vander Meer and Morel, 1995; Marchini et al, 1997) or antibiotics producing symbiotic bacteria (Flórez et al, 2017; Flórez et al, 2015) onto their eggs and ant workers can counter microbial infestation of the brood by applying venom (Tragust et al, 2013). Recently, the employment of volatile antimicrobials by insects as a means of external defense has gathered some interest (Gross et al, 2008; Gross and Schmidtberg, 2009; Weiss et al, 2014; Lopes et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

“…NO ⋅ seems to be a most suitable gaseous agent because it can obviously be produced by beewolf eggs in amounts that effectively kill mold fungi in their brood cell. Such volatile sanitation mechanisms that provide a front-line defense against microbes (Gross et al, 2008; Weiss et al, 2014; Lopes et al, 2015) will mostly be inconspicuous and might turn out to be a wider theme in nature.…”

Section: Discussionmentioning

confidence: 99%

Nitric oxide radicals are emitted by wasp eggs to kill mold fungi

Strohm

Herzner

Rüther

et al. 2019

eLife

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Detrimental microbes caused the evolution of a great diversity of antimicrobial defenses in plants and animals. Insects developing underground seem particularly threatened. Here we show that the eggs of a solitary digger wasp, the European beewolf Philanthus triangulum, emit large amounts of gaseous nitric oxide (NO⋅) to protect themselves and their provisions, paralyzed honeybees, against mold fungi. We provide evidence that a NO-synthase (NOS) is involved in the generation of the extraordinary concentrations of nitrogen radicals in brood cells (~1500 ppm NO⋅ and its oxidation product NO2⋅). Sequencing of the beewolf NOS gene revealed no conspicuous differences to related species. However, due to alternative splicing, the NOS-mRNA in beewolf eggs lacks an exon near the regulatory domain. This preventive external application of high doses of NO⋅ by wasp eggs represents an evolutionary key innovation that adds a remarkable novel facet to the array of functions of the important biological effector NO⋅.

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The fungistatic and fungicidal effects of volatiles from metathoracic glands of soybean-attacking stink bugs (Heteroptera: Pentatomidae) on the entomopathogen Beauveria bassiana

Cited by 43 publications

References 35 publications

Behavioral Evidence and Olfactory Reception of a Single Alarm Pheromone Component in Halyomorpha halys

Behavioral Evidence and Olfactory Reception of a Single Alarm Pheromone Component in Halyomorpha halys

Biological Parameters of Euschistus heros (F.) (Heteroptera: Pentatomidae) and its Susceptibility to Entomopathogenic Fungi When Fed on Different Diets

Nitric oxide radicals are emitted by wasp eggs to kill mold fungi

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