Electrophysiological and Morphological Characterization of Contact Chemosensilla in Adults and Larvae of the Butterfly, <i>Atrophaneura alcinous</i>
Distribution and electrophysiological responses of contact chemosensilla were examined in the Aristolochiaceae-feeding butterfly <i>Atrophaneura</i><i>alcinous</i>. In adult butterflies, tarsal contact chemosensilla of the foreleg were classified into two groups based on leng...
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| Format: | Article |
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MDPI AG
2022-09-01
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| Series: | Insects |
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| Online Access: | https://www.mdpi.com/2075-4450/13/9/802 |
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| author | Kazuko Tsuchihara Takuma Takanashi Kiyoshi Asaoka |
| author_facet | Kazuko Tsuchihara Takuma Takanashi Kiyoshi Asaoka |
| author_sort | Kazuko Tsuchihara |
| collection | DOAJ |
| description | Distribution and electrophysiological responses of contact chemosensilla were examined in the Aristolochiaceae-feeding butterfly <i>Atrophaneura</i><i>alcinous</i>. In adult butterflies, tarsal contact chemosensilla of the foreleg were classified into two groups based on length: long- and short-type sensilla. Long-type sensilla were distributed much more widely in females than in males, whereas short-type sensilla were found at the edge of the tarsi in a similar manner in both sexes. Taste responses of the long- and short-type sensilla to methanol extracts of <i>Aristolochia debilis</i> and <i>Citrus</i> spp. were recorded. <i>Aristolochia</i> debilis extracts evoked spikes with different amplitudes, whereas Citrus spp. extracts evoked spikes with a single amplitude in the long-type sensilla. Short-type sensilla did not respond to either extract. Moreover, we recorded responses to different concentrations of sucrose and NaCl. Results suggest that adult butterflies can discriminate the taste of host plant components from other chemicals using long-type sensilla during oviposition and may recognize diets containing sugar and salts during feeding using short-type sensilla. In the larval mouthparts, there were lateral and medial styloconic sensilla on the maxillary galea and epipharyngeal sensillum on the epipharynx. Electrophysiological responses of these sensilla suggest that larvae can discriminate between host plant compounds. |
| first_indexed | 2024-03-09T23:39:02Z |
| format | Article |
| id | doaj.art-7fda6d6cac2e4bf88ee6156f09925cc9 |
| institution | Directory Open Access Journal |
| issn | 2075-4450 |
| language | English |
| last_indexed | 2024-03-09T23:39:02Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Insects |
| spelling | doaj.art-7fda6d6cac2e4bf88ee6156f09925cc92023-11-23T16:55:00ZengMDPI AGInsects2075-44502022-09-0113980210.3390/insects13090802Electrophysiological and Morphological Characterization of Contact Chemosensilla in Adults and Larvae of the Butterfly, <i>Atrophaneura alcinous</i>Kazuko Tsuchihara0Takuma Takanashi1Kiyoshi Asaoka2Department of Information Science, Faculty of Liberal Arts, Tohoku Gakuin University, Sendai 981-3193, JapanTohoku Research Center, Forestry and Forest Products Research Institute, Morioka 020-0123, JapanInstitute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba 305-8634, JapanDistribution and electrophysiological responses of contact chemosensilla were examined in the Aristolochiaceae-feeding butterfly <i>Atrophaneura</i><i>alcinous</i>. In adult butterflies, tarsal contact chemosensilla of the foreleg were classified into two groups based on length: long- and short-type sensilla. Long-type sensilla were distributed much more widely in females than in males, whereas short-type sensilla were found at the edge of the tarsi in a similar manner in both sexes. Taste responses of the long- and short-type sensilla to methanol extracts of <i>Aristolochia debilis</i> and <i>Citrus</i> spp. were recorded. <i>Aristolochia</i> debilis extracts evoked spikes with different amplitudes, whereas Citrus spp. extracts evoked spikes with a single amplitude in the long-type sensilla. Short-type sensilla did not respond to either extract. Moreover, we recorded responses to different concentrations of sucrose and NaCl. Results suggest that adult butterflies can discriminate the taste of host plant components from other chemicals using long-type sensilla during oviposition and may recognize diets containing sugar and salts during feeding using short-type sensilla. In the larval mouthparts, there were lateral and medial styloconic sensilla on the maxillary galea and epipharyngeal sensillum on the epipharynx. Electrophysiological responses of these sensilla suggest that larvae can discriminate between host plant compounds.https://www.mdpi.com/2075-4450/13/9/802chemoreceptiontastebutterflysensilla |
| spellingShingle | Kazuko Tsuchihara Takuma Takanashi Kiyoshi Asaoka Electrophysiological and Morphological Characterization of Contact Chemosensilla in Adults and Larvae of the Butterfly, <i>Atrophaneura alcinous</i> Insects chemoreception taste butterfly sensilla |
| title | Electrophysiological and Morphological Characterization of Contact Chemosensilla in Adults and Larvae of the Butterfly, <i>Atrophaneura alcinous</i> |
| title_full | Electrophysiological and Morphological Characterization of Contact Chemosensilla in Adults and Larvae of the Butterfly, <i>Atrophaneura alcinous</i> |
| title_fullStr | Electrophysiological and Morphological Characterization of Contact Chemosensilla in Adults and Larvae of the Butterfly, <i>Atrophaneura alcinous</i> |
| title_full_unstemmed | Electrophysiological and Morphological Characterization of Contact Chemosensilla in Adults and Larvae of the Butterfly, <i>Atrophaneura alcinous</i> |
| title_short | Electrophysiological and Morphological Characterization of Contact Chemosensilla in Adults and Larvae of the Butterfly, <i>Atrophaneura alcinous</i> |
| title_sort | electrophysiological and morphological characterization of contact chemosensilla in adults and larvae of the butterfly i atrophaneura alcinous i |
| topic | chemoreception taste butterfly sensilla |
| url | https://www.mdpi.com/2075-4450/13/9/802 |
| work_keys_str_mv | AT kazukotsuchihara electrophysiologicalandmorphologicalcharacterizationofcontactchemosensillainadultsandlarvaeofthebutterflyiatrophaneuraalcinousi AT takumatakanashi electrophysiologicalandmorphologicalcharacterizationofcontactchemosensillainadultsandlarvaeofthebutterflyiatrophaneuraalcinousi AT kiyoshiasaoka electrophysiologicalandmorphologicalcharacterizationofcontactchemosensillainadultsandlarvaeofthebutterflyiatrophaneuraalcinousi |