Olfactory and biophysical assessment of the oviposition stimulating potential of host and non-host plants for the yellow peach moth, Conogethes punctiferalis (Lepidoptera: Crambidae)

Wang

et al. 2016

Sci Rep

The yellow peach moth, Conogethes punctiferalis, is an extremely important polyphagous insect in Asia. The chemosensory systems of moth play an important role in detecting food, oviposition sites and mate attraction. Several antennal chemosensory receptors are involved in odor detection. Our study aims to identify chemosensory receptor genes for potential applications in behavioral responses of yellow peach moth. By transcriptomic analysis of male and female antennae, 83 candidate chemosensory receptors, including 62 odorant receptors, 11 ionotropic receptors and 10 gustatory receptors were identified. Through Blast and sequence alignment, the highly conserved co-receptor Orco was annotated, eight unigenes clustered into pheromone receptors, and two clustered as sugar receptor. Among the IRs, one unigenes was similar with co-receptors IR25a. Expression levels of 50 odorant receptors were further evaluated by quantitative real-time PCR in antennae. All the ORs tested were detected in antennae and some of which were associated with sex-biased expression. The chemosensory receptors identified in C. punctiferalis provide a foundational resource for further analysis on olfaction for behavior. The expression profiles of ORs in antennae indicated variant functions in olfactory recognition, and our results provided the possibility for the potential application of semiochemical to control this pest moth.

mentioning

confidence: 99%

Identification of putative chemosensory receptor genes from yellow peach moth Conogethes punctiferalis (Guenée) antennae transcriptome

Wang

et al. 2016

Sci Rep

“…In laboratory experiments, caged insects have been used to evaluate their behavioural responses to different odours and visual cues (Bunchu et al, 2008;Chen et al, 2020;Gaviraghi & Oliveira, 2020;Lapis & Borden, 1993;Luo & Honda, 2015;Milet-Pinheiro et al, 2015). In our caged bioassay of ALB adults, in both singlechoice and two-choice scenarios, the average time ALB males took to find PDB was shorter than the females took, respectively (Table 1), and it also showed that ALB males found PDB leaves faster than they found PAP leaves in either single-choice or two-choice scenarios.…”

Section: Discussionmentioning

confidence: 99%

Anoplophora glabripennis: Host choice, oviposition and performance of new hatched larvae on ‘resistant’ poplar species

Yan

Liu

et al. 2021

J Applied Entomology

Most western regions of China are arid or semi-arid. To reduce encroachment by sandstorms in these areas, tens of thousands of forest belts have been established since the 1970s. The majority of these forests are comprised of different varieties or clones of poplar which are tall, fast-growing and resistant to environmental stress (Lv et al., 2000). To date, poplar is still the first choice when planting

“…Furthermore, the current strategies of interrupting their normal mating with sex pheromones are not effective for mated YPM females. So other strategies, including plant-derived attractants and/or repellents as allelochemicals that selectively manipulate the behavior of YPM females, are demand for the integrated pest management (IPM) of YPMs (Luo & Honda, 2015;Xiao et al, 2012). Keeping the above in view, we determined the effects of three Penicillium fungi (P. citrinum, P. sumatrense, and P. digitatum) on the VOCs of apples, and the cascading effects on the behavioral responses of the mated YPM females.…”

Section: Introductionmentioning

confidence: 99%

Penicillium fungi mediate behavioral responses of the yellow peach moth, Conogethes punctiferalis (Guenée) to apple fruits via altering the emissions of host plant VOCs

Guo

Han

Arch Insect Biochem Physiol

et al. 2022

Plant‐associated microbes have been reported as important but overlooked drivers of plant–herbivorous insect interactions. Influence of plant‐associated microbes on plant–insect interactions is diverse, including beneficial, detrimental, and neutral. Here, we determined the effects of three Penicillium fungi, including Penicillium citrinum, Penicillium sumatrense, and Penicillium digitatum, on the oviposition selection and behavior of the yellow peach moth (YPM), Conogethes punctiferalis (Guenée). Compared with fungi noninfected apples (NIA), mechanically damaged apples (MDA), and P. citrinum in potato dextrose agar medium (PC), the oviposition selection and four‐arm olfactometer experiments both showed that mated YPM females preferred to P. citrinum‐infected apples (PCA). For P. sumatrense or P. digitatum, we also found that mated YPM females preferred to P. sumatrense‐infected apples (PSA) or P. digitatum‐infected apples (PDA), respectively. Among three Penicillium fungi‐infected apples, the selection rates including oviposition and olfactometer behavior of mated YPM females on PDA were both higher than those on PSA and PCA. Further analyses of host plant volatile organic compounds (VOCs) by GC‐MS showed that the absolute contents of ethyl hexanoate and (Z, E)‐α‐farnesene in PCA, PSA, and PDA were all higher than those in NIA, and a total of 16 novel VOCs were detected in fungi‐infected apples (PCA, PSA, and PDA), indicating that fungi infection changed the components and proportions of apple VOCs. Taken together, three Penicillium fungi play significant roles in mediating the host selection of YPMs via altering the emissions of VOCs. These findings will be beneficial for developing formulations for field trapping of YPMs in the future.