Oviposition attractants for Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae) in the volatiles of whole wheat flour

Uechi, K; Matsuyama, Sigeru; Suzuki, Takahisa

doi:10.1016/j.jspr.2006.05.002

Cited by 12 publications

(12 citation statements)

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“…Besides degrading sex pheromones, insect delta GSTs also play roles in degrading host volatiles and environmental odorants (Li et al, 2018;Wang et al, 2021a,b). To evaluate the degradation activity of PiGSTd1 to host volatiles, we selected various volatiles from wheat flour or grains as substrates, including alkanals, 2E-alkenals, isopentanol, and phenylacetaldehyde (Uechi et al, 2007;Buda et al, 2016), as well as their analogs. Among all tested volatiles, recombinant PiGSTd1 showed best degradation activities to hexanal (89.10 ± 2.21%), (E)-2-octenal (73.58 ± 3.92%), and (E)-2-nonenal (75.81 ± 1.90%), which could attract P. interpunctella (Uechi et al, 2007;Buda et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

“…To evaluate the degradation activity of PiGSTd1 to host volatiles, we selected various volatiles from wheat flour or grains as substrates, including alkanals, 2E-alkenals, isopentanol, and phenylacetaldehyde (Uechi et al, 2007;Buda et al, 2016), as well as their analogs. Among all tested volatiles, recombinant PiGSTd1 showed best degradation activities to hexanal (89.10 ± 2.21%), (E)-2-octenal (73.58 ± 3.92%), and (E)-2-nonenal (75.81 ± 1.90%), which could attract P. interpunctella (Uechi et al, 2007;Buda et al, 2016). Unexpectedly, PiGSTd1 showed lower efficiency in degrading common green leaf volatile (Z-3-hexenol) and flower fragrance (phenylacetaldehyde), with degradation rates of 30.91 ± 5.17% and 13.97 ± 2.76%, respectively.…”

Section: Discussionmentioning

confidence: 99%

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Identification and Characterization of an Antennae-Specific Glutathione S-Transferase From the Indian Meal Moth

et al. 2021

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Insect glutathione-S-transferases (GSTs) play essential roles in metabolizing endogenous and exogenous compounds. GSTs that are uniquely expressed in antennae are assumed to function as scavengers of pheromones and host volatiles in the odorant detection system. Based on this assumption, antennae-specific GSTs have been identified and functionally characterized in increasing number of insect species. In the present study, 17 putative GSTs were identified from the antennal transcriptomic dataset of the Indian meal moth, Plodia interpunctella, a severe stored-grain pest worldwide. Among the GSTs, only PiGSTd1 is antennae-specific according to both Fragments Per Kilobase Million (FPKM) and quantitative real-time PCR (qRT-PCR) analysis. Sequence analysis revealed that PiGSTd1 has a similar identity as many delta GSTs from other moths. Enzyme kinetic assays using 1-chloro-2,4-dinitrobenzene (CDNB) as substrates showed that the recombinant PiGSTd1 gave a Km of 0.2292 ± 0.01805 mM and a Vmax of 14.02 ± 0.2545 μmol·mg−1·min−1 under the optimal catalytic conditions (35°C and pH = 7.5). Further analysis revealed that the recombinant PiGSTd1 could efficiently degrade the sex pheromone component Z9-12:Ac (75.63 ± 5.52%), as well as aldehyde volatiles, including hexanal (89.10 ± 2.21%), heptanal (63.19 ± 5.36%), (E)-2-octenal (73.58 ± 3.92%), (E)-2-nonenal (75.81 ± 1.90%), and (E)-2-decenal (61.13 ± 5.24%). Taken together, our findings suggest that PiGSTd1 may play essential roles in degrading and inactivating a variety of odorants, especially sex pheromones and host volatiles of P. interpunctella.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Identification and Characterization of an Antennae-Specific Glutathione S-Transferase From the Indian Meal Moth

et al. 2021

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“…There is always an uncertainty connected with the interpretation of pheromone trap catches when trapping is done within MD treatments, especially if the same substance or blend is used in traps and for disruption. However, non‐pheromone lures are not yet available for the Mediterranean flour moth or the Indian meal moth (but see Phillips & Strand, 1994; Olsson et al., 2005a,b, 2006; Uechi et al., 2007), and presently we have to rely on various and repeated indications that MD is working also for these stored product moths. The accumulated data from studies discussed in this paper, as well as this study, all show the same pattern of reduced populations of moth pest due to MD.…”

Section: Discussionmentioning

confidence: 99%

Long‐term pheromone‐mediated mating disruption of the Mediterranean flour moth, Ephestia kuehniella, in a flourmill

Edyta

Ryne

Löfstedt

et al. 2009

Entomologia Exp Applicata

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Several studies have indicated that mating disruption (MD) successfully reduces population densities of stored product moths, for example, the Mediterranean flour moth, Ephestia kuehniella (Zeller) (Lepidoptera: Pyralidae). However, practical issues, such as finding control plots, replication, and lack of similarity between replicates, often incur problems in full‐scale investigations and often draw focus from the added results. We here present results from long‐term monitoring of E. kuehniella populations in two similar flourmills in Poland, one treated with pheromone for MD and one left untreated and used as control. Pheromone‐mediated MD was applied during 2 years. Thirty pheromone dispensers (one per 100 m3 factory volume), each releasing about 2 mg (Z,E)‐9,12‐tetradecadienyl acetate per day, were used. Pheromone‐baited traps were used to monitor the moth populations in the MD mill and in a nearby untreated mill. The reduction in trap catch during the MD treatment was about 90% or more, compared with the untreated mill or pre‐treatment periods of the MD mill. The reduction was larger during the 2nd year of MD than during the 1st year. These results contribute to the picture that MD is an effective method to control moth species infesting stored products.

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“…These volatile substances are released from different parts of a plant, and induce behavioural interactions between organisms. They are used by pest insects to identify, home-in on and utilise a preferred host type (Ignacimuthu et al, 2000;Uechi et al, 2007;Bruce et al, 2005;Webster et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Attraction of <<I>Callosobruchus maculates</I> fabricius (Coleoptera: Chrysomelidae: Bruchinae) to pods of cowpea plants at different developmental stages

Ahuchaogu¹,

Ojiako²

2020

Agro-Sci.

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The cowpea beetle, Callosobruchus maculatus Fab. is an economically important pest of stored grain and causes serious damage to stored peas. The application of pesticides has been the generic control measure due to its effectiveness, affordability and ease of application. However, due to the apparent health and environmental consequences with pesticides, stakeholders are advocating for an alternative management approach that has less social and environmental impact and is more sustainable. Consequently, this study examined the attraction of mated female to volatile blends collected from pods of cowpea plants (Borno-brown and black-eyed cultivars) at three developmental stages developing podsie; 15-17 days after anthesis (daa), fully developed pods (18-20 daa) and mature pods (> 20 daa). The beetles’ responses to the pods’ odour were determined using a two-arm olfactometer, and gas chromatography-mass spectrometry (GC-MS) was used to identify and quantify the volatile compounds collected from the pods. The results showed that female C. maculatus attraction increased with the pod’s age, and that the composition and abundance of volatile compounds varied between cowpea cultivars and the pod’s developmental stage. These findings form an important bases towards developing alternative approach for the management of bruchids. Key words: volatile compounds, cowpea plants, GC-MS, pod’s developmental stage, days after anthesis

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Oviposition attractants for Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae) in the volatiles of whole wheat flour

Cited by 12 publications

References 12 publications

Identification and Characterization of an Antennae-Specific Glutathione S-Transferase From the Indian Meal Moth

Identification and Characterization of an Antennae-Specific Glutathione S-Transferase From the Indian Meal Moth

Long‐term pheromone‐mediated mating disruption of the Mediterranean flour moth, Ephestia kuehniella, in a flourmill

Attraction of <<I>Callosobruchus maculates</I> fabricius (Coleoptera: Chrysomelidae: Bruchinae) to pods of cowpea plants at different developmental stages

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