The effect of toxin-producing Fusarium fungi on behavior of the rice weevil Sitophilus oryzae (Coleoptera, Dryophthoridae)

Selitskaya, O. G.; Gavrilova, Olga; Schenikova, A. V.; Shamshev, I. V.; Gagkaeva, Tatiana

doi:10.1134/s0013873814060037

Cited by 7 publications

(4 citation statements)

References 9 publications

(7 reference statements)

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“…The detected VOCs emitted by Fusarium fungi most probably include metabolites which act as attractants or repellents for insects coexisting with then and, probably, favor their dispersal and adaptation to the environment. In the experiments aimed at revealing semiochemical interactions between various Fusarium species and the rice weevil, associated with their development with cereals, the beetles showed different reactions on the studied strains . The low pathogenic strains F. langsethiae MFG93001 and F. poae MFG103403, grown both on PSA and on autoclaved wheat kernels acted as attractants on insects.…”

Section: Discussionmentioning

confidence: 99%

Study of the Vapor Phase Over Fusarium Fungi Cultured on Various Substrates

Savelieva

Gustyleva

Kessenikh

et al. 2016

Chemistry & Biodiversity

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The compositions of volatile organic compounds (VOCs) emitted by Fusarium fungi (F. langsethiae, F. sibiricum, F. poae, and F. sporotrichioides) grown on two nutritive substrates: potato sucrose agar (PSA) and autoclaved wheat kernels (WK) were investigated. The culturing of fungi and study of their VOC emissions were performed in chromatographic vials at room temperature (23 - 24 °C) and the VOCs were sampled by a solid-phase microextraction on a 85 μm carboxen/polydimethylsiloxane fiber. GC/MS was performed using a 60-m HP-5 capillary column. Components of the VOC mixture were identified by electron impact mass spectra and chromatographic retention indices (RIs). The most abundant components of the VOC mixture emitted by Fusarium fungi are EtOH, AcOH, (i) BuOH, 3-methylbutan-1-ol, 2-methylbutan-1-ol, ethyl 3-methylbutanoate, terpenes with M 136, sesquiterpenes with M 204 (a total of about 25), and trichodiene. It was found that the strains grown on PSA emit a wider spectrum and larger amount of VOCs compared with those grown on wheat kernels. F. langsethiae strain is the most active VOC producer on both substrates. The use of SPME and GC/MS also offers the potential for differentiation of fungal species and strains.

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Section: Discussionmentioning

confidence: 99%

Study of the Vapor Phase Over Fusarium Fungi Cultured on Various Substrates

Savelieva

Gustyleva

Kessenikh

et al. 2016

Chemistry & Biodiversity

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“…The attractiveness of EPF for hosts or predators is much less common than repellency. Fungi Beauveria bronginiartii and M. anisopliae were attractive for collembolans [46], certain species of fungi of the genus Fusarium were attractive for rice weevil beetles [47]. The attractiveness of L. lecanii strain Vl 5 for O. laevigatus requires further study; it may be related to the peculiarities of the VOC composition of the mycelium of this strain.…”

Section: Resultsmentioning

confidence: 99%

Effect of entomopathogenic fungi of the genus Lecanicillium on behavioral reactions and average per-day fecundity of the predatory bug Orius laevigatus Fieber (Heteroptera, Anthocoridae)

2022

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The results of studying the effect of spores and mycelium of entomopathogenic fungi of the genus Lecanicillium on the behavioral responses of predatory bugs Orius laevigatus and their fecundity are provided. In a laboratory experiment, the location of the bug adults was assessed after 24 hours, as well as the average daily fecundity of females with a free choice between a bean leaf with agar (control) and a bean leaf with sporulating fungal mycelium (experiment). It was found that the neutral reaction prevailed in the behavior of the bugs. The repellent reaction of predators was caused by the mycelium of three strains: Vl 29 (L. lecanii), ARSEF 2332 (L. dimorphum), Vit 71 (L. attenuatum); the index of aggregation ranged from -40.7 to -50 (P<0.05). Strain Vl 5 (L. lecanii), index of aggregation+43.3, caused a significant attractive reaction. The strains causing a repellant reaction of bugs did not affect the average per-day fecundity of females. Only two strains Vl 72 of L. muscarium and Vl 79 of L. dimorphum caused a significant decrease in the fecundity of O. laevigatus, while the reaction of bugs to the mycelium of these strains was neutral. In the absence of a negative effect of fungi on the fecundity of bugs, the combined use of these biological agents may be promising.

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“…Results provided by this study show that the B. bassiana strain inflicted a repellent effect on both insect species. Many studies revealed that insects tend to avoid the presence of fungal entomopathogens (16,17,23). This behavior has been attributed to volatile compounds released by fungi and to the capacity of insects to detect these specific signals.…”

Section: Discussionmentioning

confidence: 99%

Susceptibility of Rhyzopertha dominica (Coleoptera: Bostrichidae) and Sitophilus oryzae (Coleoptera: Curculionidae) to the fungal entomopathogen Beauveria bassiana (Balsamo-Crivelli) Vuillemin s.l. (Hypocreales: Clavicipitaceae)

Vianna,

Russo,

Troncozo

et al. 2023

Rev. FCA UNCUYO

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Control measures of stored grain pests include the excessive utilization of chemical insecticides that generate negative environmental impact. Current trends in integrated pest management are oriented towards the preservation of the environment using natural biopesticides, among these products arise entomopathogenic fungi. This study aimed to test the efficacy of a native strain of Beauveria bassiana to control two main stored grain pests such as Sitophilus oryzae and Rhyzopertha dominica and also evaluate the persistence of the fungus on wheat grains. The B. bassiana strain controlled 89%±0.07 of R. dominica adults and 80% ±0.14 of S. oryzae. The survival analysis showed that MST was 4.27 ±0.19 days for R. dominica adults and 4.27 ±0.20 days for S. oryzae. Furthermore, results of long rank test for the comparison of the Kaplan-Meier curves did not present significant differences between the survival of both stored grain pests. Dual choice tests demonstrated that B. bassiana LPSc1227 presented a repellent action against both stored grain pests. The seed persistence of conidia was 100% in treated seeds after 45 days. Further research will contribute to elucidate more insecticidal features of the B. bassiana LPSc 1227 strain against S. oryzae and R. dominica, two main stored grain insect pests. Highlights: bassiana presented insecticidal activity against R. dominica and S. oryzae. bassiana demonstrated a repellent action against both stored grain pests. bassiana was able to persist on the surface of wheat grains after 45 days storage.

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The effect of toxin-producing Fusarium fungi on behavior of the rice weevil Sitophilus oryzae (Coleoptera, Dryophthoridae)

Cited by 7 publications

References 9 publications

Study of the Vapor Phase Over Fusarium Fungi Cultured on Various Substrates

Study of the Vapor Phase Over Fusarium Fungi Cultured on Various Substrates

Effect of entomopathogenic fungi of the genus Lecanicillium on behavioral reactions and average per-day fecundity of the predatory bug Orius laevigatus Fieber (Heteroptera, Anthocoridae)

Susceptibility of Rhyzopertha dominica (Coleoptera: Bostrichidae) and Sitophilus oryzae (Coleoptera: Curculionidae) to the fungal entomopathogen Beauveria bassiana (Balsamo-Crivelli) Vuillemin s.l. (Hypocreales: Clavicipitaceae)

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