Distribution patterns and morphology of sensilla on the antennae of Plutella xylostella (L.)—A scanning and transmission electron microscopic study

Yan, Xin; Deng, Cai-Ping; Xie, Jingwen; Wu, Lan-Jun; Sun, Xuejun; Hao, Chi

doi:10.1016/j.micron.2017.08.002

Cited by 21 publications

(21 citation statements)

References 56 publications

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“…However, there are some significant differences in the sensilla dimensions between the sexes ( Table 2). The average antennal subsegment length is longer in males than that in females, with the same result as other species reported previously (Wee et al, 2016;Yan et al, 2017), which can be explained by the fact that males are often regarded as receptors in sexual chemical communication, so they need more antennal sensorial zone for pheromone and allelochemical perception (Romero-López et al, 2010). Besides, the lengths of ST, SB, SC, SA, and SS for males are greater than those for females, whereas BB is shorter for males than that for females.…”

Section: Differences Between Sexessupporting

confidence: 89%

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Ultrastructure of Antennal Morphology and Sensilla of Teak Skeletonizer, Eutectona machaeralis Walker (Lepidoptera: Crambidae)

et al. 2020

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Section: Differences Between Sexessupporting

confidence: 89%

“…The functions of these sensilla are not well documented. According to previous studies, they are likely related to the detection of host plant odors (Yan et al, 2017) or may act as mechanoreceptors (Faucheux, 1999).…”

Section: Morphology and Potential Functions Of Antennal Sensillummentioning

confidence: 97%

Ultrastructure of Antennal Morphology and Sensilla of Teak Skeletonizer, Eutectona machaeralis Walker (Lepidoptera: Crambidae)

et al. 2020

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“…800 m) and were reared in the laboratory of Shanxi Agricultural University. The rearing protocol was the same as that previously described by Yan et al (2017). The DBM pupae were collected and individually placed in transparent cylindrical glass tubes (8 cm in length, 2 cm in diameter), which were maintained at 25 ± 1°C, 70 ± 5% RH and a photoperiod of 14:10 hr (L:D).…”

Section: Methodsmentioning

confidence: 99%

Electroantennogram responses of Plutella xylostella (L.), to sex pheromone components and host plant volatile semiochemicals

AiHua

Yan

et al. 2020

J Applied Entomology

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The diamondback moth (DBM), Plutella xylostella (L.) (Lepidoptera: Plutellidae), is a notorious insect pest of cruciferous crops worldwide. Attract‐and‐kill strategies to manage the DBM based on insect pheromone and plant volatile semiochemicals have been explored and partially applied in the field. However, little is known about whether the attractant effects of insect pheromone and host plant volatile semiochemicals on insects are affected by insect age or volatile concentrations. Therefore, we examined the electroantennogram (EAG) responses of both DBM males and females varying in age and body size to a range of concentrations of seven host plant volatiles and two main female sex pheromone components. Our results showed that DBM age had no influence on EAG responses to trans‐2‐Hexenal, trans‐2‐Hexenol, Heptanal, cis‐3‐Hexen‐1‐ol and Z11‐16:Ald and significantly influenced the EAG responses to Z11‐16:Ac and three isothiocyanates. Age and sex had interaction effects on EAG responses of DBMs to some tested semiochemicals. DBM females had significantly stronger responses than males to all tested plant volatiles, and values were enhanced with increasing concentrations. Moreover, the degree of enhancement of EAG responses in females was larger than that in males for trans‐2‐Hexenal, trans‐2‐Hexenol, cis‐3‐Hexen‐1‐ol, 2‐Phenylethyl isothiocyanate and Methyl isothiocyanate treatments. Body size seemed to have no influence on EAG responses. Our results might provide a theoretical basis for optimizing attract‐and‐kill strategies for insect pests.

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“…In insects, the olfactory system plays a highly important role in detecting odorants involved in sexual communication, social integration, host recognition, and escaping from enemies over a distance (Lopes et al, 2002; Gill et al, 2013; Sun et al, 2014; Xu et al, 2016). The antennae are the primary olfactory organ and bear several types of sensilla (Galizia and Rossler, 2010; Yan et al, 2014, 2017a). The most prominent sensillum types have olfactory functions and contain olfactory receptor neurons (ORNs), which send projections directly to the antennal lobe (AL), the primary olfactory center of the insect brain.…”

Section: Introductionmentioning

confidence: 99%

Glomerular Organization of the Antennal Lobes of the Diamondback Moth, Plutella xylostella L.

et al. 2019

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The antennal lobe of the moth brain is the primary olfactory center processing information concerning pheromones and plant odors. Plutella xylostella is a major worldwide pest of cruciferous vegetables and its behavior is highly dependent on their olfactory system. However, detailed knowledge of the anatomy and function of the P. xylostella olfactory system remains limited. In the present study, we present the 3-Dimentional (3-D) map of the antennal lobe of P. xylostella, based on confocal microscopic analysis of glomerular segmentation and Neurobiotin backfills of Olfactory Receptor Neurons (ORNs). We identified 74–76 ordinary glomeruli and a macroglomerular complex (MGC) situated at the entrance of the antennal nerve in males. The MGC contained three glomeruli. The volumes of glomeruli in males ranged from 305.83 ± 129.53 to 25440.00 ± 1377.67 μm3. In females, 74–77 glomeruli were found, with the largest glomerulus ELG being situated at the entrance of the antennal nerve. The volumes of glomeruli in females ranged from 802.17 ± 95.68 to 8142.17 ± 509.46 μm3. Sexual dimorphism was observed in anomalous supernumerary, anomalous missing, shape, size, and array of several of the identified glomeruli in both sexes. All glomeruli, except one in the antennal lobe (AL), received projections of antennal ORNs. The glomeruli PV1 in both sexes received input from the labial palp nerve and was assumed as the labial pit organ glomerulus (LPOG). These results provide a foundation for better understanding of coding mechanisms of odors in this important pest insect.

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Distribution patterns and morphology of sensilla on the antennae of Plutella xylostella (L.)—A scanning and transmission electron microscopic study

Cited by 21 publications

References 56 publications

Ultrastructure of Antennal Morphology and Sensilla of Teak Skeletonizer, Eutectona machaeralis Walker (Lepidoptera: Crambidae)

Ultrastructure of Antennal Morphology and Sensilla of Teak Skeletonizer, Eutectona machaeralis Walker (Lepidoptera: Crambidae)

Electroantennogram responses of Plutella xylostella (L.), to sex pheromone components and host plant volatile semiochemicals

Glomerular Organization of the Antennal Lobes of the Diamondback Moth, Plutella xylostella L.

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