Examination of the interior of sand fly (Diptera: Psychodidae) abdomen reveals novel cuticular structures involved in pheromone release: Discovering the manifold.
The males of many species of New World Phlebotomines produce volatile terpenoid chemicals, shown in Lutzomyia longipalpis s.l. to be sex/aggregation pheromones. Pheromone is produced by secretory cells which surround a cuticular reservoir which collects the pheromone and passes it through a cuticula...
Published in: | PLOS Neglected Tropical Diseases |
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Language: | English |
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Public Library of Science (PLoS)
2021
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Online Access: | https://doi.org/10.1371/journal.pntd.0009733 https://doaj.org/article/4f9e25a5d3704b0a90200f4f65f2811d |
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ftdoajarticles:oai:doaj.org/article:4f9e25a5d3704b0a90200f4f65f2811d 2023-05-15T15:16:35+02:00 Examination of the interior of sand fly (Diptera: Psychodidae) abdomen reveals novel cuticular structures involved in pheromone release: Discovering the manifold. Gabriel B Tonelli José D Andrade-Filho Aldenise M Campos Carina Margonari Amanda R Amaral Petr Volf Elisabeth J Shaw James G C Hamilton 2021-12-01T00:00:00Z https://doi.org/10.1371/journal.pntd.0009733 https://doaj.org/article/4f9e25a5d3704b0a90200f4f65f2811d EN eng Public Library of Science (PLoS) https://doi.org/10.1371/journal.pntd.0009733 https://doaj.org/toc/1935-2727 https://doaj.org/toc/1935-2735 1935-2727 1935-2735 doi:10.1371/journal.pntd.0009733 https://doaj.org/article/4f9e25a5d3704b0a90200f4f65f2811d PLoS Neglected Tropical Diseases, Vol 15, Iss 12, p e0009733 (2021) Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 article 2021 ftdoajarticles https://doi.org/10.1371/journal.pntd.0009733 2022-12-31T15:11:51Z The males of many species of New World Phlebotomines produce volatile terpenoid chemicals, shown in Lutzomyia longipalpis s.l. to be sex/aggregation pheromones. Pheromone is produced by secretory cells which surround a cuticular reservoir which collects the pheromone and passes it through a cuticular duct to the surface of the insect. The pheromone then passes through specialised cuticular structures on the abdominal surface prior to evaporation. The shape and distribution of the specialised structures are highly diverse and differ according to species. In this study we used SEM to examine the interior cuticular pheromone collection and transport structures of 3 members of the Lu. longipalpis s.l. species complex and Migonemyia migonei. We found a new structure which we have called the manifold which appears to be a substantial extension of the interior tergal cuticle connected in-line with the cuticular duct and reservoir. The manifold of the Campo Grande member of the complex is longer and wider than the Jacobina member whereas the manifold of the Sobral member was shorter than both other members of the complex. Overall, the secretory apparatus of the Sobral member was smaller than the other two. The manifold of M. migonei was very different to those found in Lu. longipalpis s.l. and was positioned in a pit-like structure within the tergal cuticle. The secretory reservoir was connected by a short duct to the manifold. Differences in the size and shape of the manifold may be related to the chemical structure of the pheromone and may have taxonomic value. Examination of the interior cuticle by SEM may help to locate the secretory apparatus of vector species where pheromonal activity has been inferred from behavioural studies but the external secretory structures or pheromones have not yet been found. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Sobral ENVELOPE(-40.650,-40.650,-81.083,-81.083) PLOS Neglected Tropical Diseases 15 12 e0009733 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 |
spellingShingle |
Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 Gabriel B Tonelli José D Andrade-Filho Aldenise M Campos Carina Margonari Amanda R Amaral Petr Volf Elisabeth J Shaw James G C Hamilton Examination of the interior of sand fly (Diptera: Psychodidae) abdomen reveals novel cuticular structures involved in pheromone release: Discovering the manifold. |
topic_facet |
Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 |
description |
The males of many species of New World Phlebotomines produce volatile terpenoid chemicals, shown in Lutzomyia longipalpis s.l. to be sex/aggregation pheromones. Pheromone is produced by secretory cells which surround a cuticular reservoir which collects the pheromone and passes it through a cuticular duct to the surface of the insect. The pheromone then passes through specialised cuticular structures on the abdominal surface prior to evaporation. The shape and distribution of the specialised structures are highly diverse and differ according to species. In this study we used SEM to examine the interior cuticular pheromone collection and transport structures of 3 members of the Lu. longipalpis s.l. species complex and Migonemyia migonei. We found a new structure which we have called the manifold which appears to be a substantial extension of the interior tergal cuticle connected in-line with the cuticular duct and reservoir. The manifold of the Campo Grande member of the complex is longer and wider than the Jacobina member whereas the manifold of the Sobral member was shorter than both other members of the complex. Overall, the secretory apparatus of the Sobral member was smaller than the other two. The manifold of M. migonei was very different to those found in Lu. longipalpis s.l. and was positioned in a pit-like structure within the tergal cuticle. The secretory reservoir was connected by a short duct to the manifold. Differences in the size and shape of the manifold may be related to the chemical structure of the pheromone and may have taxonomic value. Examination of the interior cuticle by SEM may help to locate the secretory apparatus of vector species where pheromonal activity has been inferred from behavioural studies but the external secretory structures or pheromones have not yet been found. |
format |
Article in Journal/Newspaper |
author |
Gabriel B Tonelli José D Andrade-Filho Aldenise M Campos Carina Margonari Amanda R Amaral Petr Volf Elisabeth J Shaw James G C Hamilton |
author_facet |
Gabriel B Tonelli José D Andrade-Filho Aldenise M Campos Carina Margonari Amanda R Amaral Petr Volf Elisabeth J Shaw James G C Hamilton |
author_sort |
Gabriel B Tonelli |
title |
Examination of the interior of sand fly (Diptera: Psychodidae) abdomen reveals novel cuticular structures involved in pheromone release: Discovering the manifold. |
title_short |
Examination of the interior of sand fly (Diptera: Psychodidae) abdomen reveals novel cuticular structures involved in pheromone release: Discovering the manifold. |
title_full |
Examination of the interior of sand fly (Diptera: Psychodidae) abdomen reveals novel cuticular structures involved in pheromone release: Discovering the manifold. |
title_fullStr |
Examination of the interior of sand fly (Diptera: Psychodidae) abdomen reveals novel cuticular structures involved in pheromone release: Discovering the manifold. |
title_full_unstemmed |
Examination of the interior of sand fly (Diptera: Psychodidae) abdomen reveals novel cuticular structures involved in pheromone release: Discovering the manifold. |
title_sort |
examination of the interior of sand fly (diptera: psychodidae) abdomen reveals novel cuticular structures involved in pheromone release: discovering the manifold. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2021 |
url |
https://doi.org/10.1371/journal.pntd.0009733 https://doaj.org/article/4f9e25a5d3704b0a90200f4f65f2811d |
long_lat |
ENVELOPE(-40.650,-40.650,-81.083,-81.083) |
geographic |
Arctic Sobral |
geographic_facet |
Arctic Sobral |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
PLoS Neglected Tropical Diseases, Vol 15, Iss 12, p e0009733 (2021) |
op_relation |
https://doi.org/10.1371/journal.pntd.0009733 https://doaj.org/toc/1935-2727 https://doaj.org/toc/1935-2735 1935-2727 1935-2735 doi:10.1371/journal.pntd.0009733 https://doaj.org/article/4f9e25a5d3704b0a90200f4f65f2811d |
op_doi |
https://doi.org/10.1371/journal.pntd.0009733 |
container_title |
PLOS Neglected Tropical Diseases |
container_volume |
15 |
container_issue |
12 |
container_start_page |
e0009733 |
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1766346881752891392 |