Antennal Sensillum Morphology and Electrophysiological Responses of Olfactory Receptor Neurons in Trichoid Sensilla of the Diamondback Moth (Lepidoptera: Plutellidae)

Wee, Suk‐Ling; Oh, Hyun Woo; Park, Kye Chung

doi:10.1653/024.099.sp118

Cited by 34 publications

(29 citation statements)

References 57 publications

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“…It has been suggested that the wall‐pores and longitudinal grooves are the entry points of odor molecules into the sensillum lumen (Maitani, Allara, Park, Lee, & Baker, ; Shields & Hildebrand, ; Steinbrecht, ; Zacharuk, ). Our study indicated that multiple nanoscale wall‐pores are present in trichoid and basiconic sensilla of male and female B. depressa , suggesting that their sensory function is olfactory, as demonstrated in other dipteran species such as P. tricuspis (Chen & Fadamiro, ), P. terraenovae (Setzu et al, ), and Stomoxys calcitrans (Muscidae; Tangtrakulwanich et al, ) as well as in other groups of insects (Roh et al, ; Wee et al, ). Extracellular recordings from coeloconic sensilla in some insect species have shown that their main function is olfactory (Hallberg et al, ; Pophof, ; Pophof et al, ; Yao et al, ), therefore, the main function of the coeloconic sensilla in the antennae of B. depressa is suggested to be olfactory.…”

Section: Discussionsupporting

confidence: 70%

“…Despite diverse external morphology, the olfactory sensilla in insects usually share a common feature containing multiple nanoscale wall-pores (Kim et al, 2016;Onagbola & Fadamiro, 2008;Roh et al, 2016;Wee, Oh, & Park, 2016). An exception is coeloconic sensilla, which exhibit longitudinal grooves instead of multiple wall-pores (Diongue, Yang, & Lai, 2013;Faucheux, Kristensen, & Yen, 2006;Roh et al, 2016).…”

Section: Fine Structure Of Olfactory Sensillamentioning

confidence: 99%

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Morphological and functional heterogeneity in olfactory perception between antennae and maxillary palps in the pumpkin fruit fly, Bactrocera depressa

Jeong

Kim

et al. 2019

Arch Insect Biochem Physiol

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The morphology and ultrastructure of the olfactory sensilla on the antennae and maxillary palps were investigated through scanning electron microscopy (SEM) and transmission electron microscopy (TEM), and their responses to five volatile compounds were measured using electroantenogram (EAG) and electropalpogram (EPG) techniques in the pumpkin fruit fly, Bactrocera depressa (Shiraki; Diptera: Tephritidae). Male and female B. depressa displayed distinct morphological types of olfactory sensilla in the antennae and maxillary palps, with predominant populations of trichoid, basiconic, and coeloconic sensilla. Basiconic sensilla, the most abundant type of olfactory sensilla in the antennae, could be further classified into two different types. In contrast, the maxillary palps exhibited predominant populations of a single type of curved basiconic sensilla. High‐resolution SEM observation revealed the presence of multiple nanoscale wall‐pores on the cuticular surface of trichoid and basiconic sensilla, indicating that their primary function is olfactory. In contrast, coeloconic sensilla displayed several longitudinal grooves around the sensillum peg. The TEM observation of individual antennal olfactory sensilla indicates that the basiconic sensilla are thin‐walled, while the trichoid sensilla are thick‐walled. The profile of EAG responses of male B. depressa was different from their EPG response profile, indicating that the olfactory function of maxillary palps is different from that of antennae in this species. The structural and functional variation in the olfactory sensilla between antennae and maxillary palps suggests that each plays an independent role in the perception of olfactory signals in B. depressa.

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Section: Discussionsupporting

confidence: 70%

Section: Fine Structure Of Olfactory Sensillamentioning

confidence: 99%

Morphological and functional heterogeneity in olfactory perception between antennae and maxillary palps in the pumpkin fruit fly, Bactrocera depressa

Jeong

Kim

et al. 2019

Arch Insect Biochem Physiol

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“…The antennae are the major olfactory sensory organ in insects, housing various types of olfactory sensilla of which olfactory function can be morphologically characterized as having multiple cuticular pores (Chen & Fadamiro, ; J. Kim et al, ; Onagbola & Fadamiro, ; Roh, Park, Oh, & Park., ; Setzu, Poddighe, & Angioy, ; Wee, Oh, & Park, ; Zacharuk, ). Pheromones and other semiochemicals are mainly detected by the olfactory sensilla in the antennae of insects (Baker et al, ; Larsson, Leal, & Hansson, ).…”

Section: Introductionmentioning

confidence: 99%

Olfactory attraction mediated by the maxillary palps in the striped fruit fly, Bactrocera scutellata: Electrophysiological and behavioral study

Park

Jeong

Kwon³

et al. 2018

Arch Insect Biochem Physiol

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Here, we report that the olfactory attraction of the striped fruit fly, Bactrocera scutellata (Hendel; Diptera: Tephritidae), a serious pest of pumpkin and other cucurbitaceae plants, to cue lure and raspberry ketone is mediated by the maxillary palps. The antennae, bearing three morphological types (basiconic, trichoid, and coeloconic) of olfactory sensilla, in male and female B. scutellata exhibited significant electroantennogram (EAG) responses to a plant volatile compound, 3-octanone, and methyl eugenol, whereas cue lure, raspberry ketone, and zingerone that are known to attract several other species of Bactrocera fruit flies elicited no significant EAG responses from both sexes. In contrast, maxillary palps, housing one morphological type of basiconic sensilla, displayed the largest electropalpogram (EPG) responses to cue lure followed by raspberry ketone among the five compounds tested in male and female B. scutellata, with only minor EPG responses to 3-octanone, which indicates that the maxillary palps are responsible for detecting cue lure and raspberry ketone in this species. In field trapping experiments, significant number of male B. scutellata were captured in the traps baited with cue lure or raspberry ketone, in which the attractiveness of cue lure was significantly higher than that of raspberry ketone. Methyl eugenol and zingerone were not behaviorally attractive to B. scutellata although they elicited significant EPG responses.Our study indicates that the behavioral attraction of B.Arch. Insect Biochem. Physiol. 2018;99:e21510. wileyonlinelibrary.com/journal/arch

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“…Difference between food related receptors and pheromone receptors (van der Goes van Naters and Carlson, 2007; Wee et al, 2016),…”

Section: The Spatio-temporal Structure Of Odor Stimuli In a Natural Ementioning

confidence: 99%

Odor Stimuli: Not Just Chemical Identity

Pannunzi

Nowotny

2019

Front. Physiol.

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In most sensory modalities the underlying physical phenomena are well understood, and stimulus properties can be precisely controlled. In olfaction, the situation is different. The presence of specific chemical compounds in the air (or water) is the root cause for perceived odors, but it remains unknown what organizing principles, equivalent to wavelength for light, determine the dimensions of odor space. Equally important, but less in the spotlight, odor stimuli are also complex with respect to their physical properties, including concentration and time-varying spatio-temporal distribution. We still lack a complete understanding or control over these properties, in either experiments or theory. In this review, we will concentrate on two important aspects of the physical properties of odor stimuli beyond the chemical identity of the odorants: (1) The amplitude of odor stimuli and their temporal dynamics. (2) The spatio-temporal structure of odor plumes in a natural environment. Concerning these issues, we ask the following questions: (1) Given any particular experimental protocol for odor stimulation, do we have a realistic estimate of the odorant concentration in the air, and at the olfactory receptor neurons? Can we control, or at least know, the dynamics of odorant concentration at olfactory receptor neurons? (2) What do we know of the spatio-temporal structure of odor stimuli in a natural environment both from a theoretical and experimental perspective? And how does this change if we consider mixtures of odorants? For both topics, we will briefly summarize the underlying principles of physics and review the experimental and theoretical Neuroscience literature, focusing on the aspects that are relevant to animals’ physiology and behavior. We hope that by bringing the physical principles behind odor plume landscapes to the fore we can contribute to promoting a new generation of experiments and models.

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Antennal Sensillum Morphology and Electrophysiological Responses of Olfactory Receptor Neurons in Trichoid Sensilla of the Diamondback Moth (Lepidoptera: Plutellidae)

Cited by 34 publications

References 57 publications

Morphological and functional heterogeneity in olfactory perception between antennae and maxillary palps in the pumpkin fruit fly, Bactrocera depressa

Morphological and functional heterogeneity in olfactory perception between antennae and maxillary palps in the pumpkin fruit fly, Bactrocera depressa

Olfactory attraction mediated by the maxillary palps in the striped fruit fly, Bactrocera scutellata: Electrophysiological and behavioral study

Odor Stimuli: Not Just Chemical Identity

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