Sites of Synthesis and Transport Pathways of Insect Hydrocarbons: Cuticle and Ovary as Target Tissues

Schal, Coby; Sevala, Veeresh L.; Young, Hugh P.; Bachmann, Jane A.S.

doi:10.1093/icb/38.2.382

Cited by 123 publications

(99 citation statements)

References 67 publications

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“…The close linkage between cuticular hydrocarbons and surface hydrocarbons of eggs is based on specific transport mechanisms in the hemolymph (34). Hydrocarbons are transported by lipoproteins to different tissues in the insect body, including the ovaries and the cuticle.…”

Section: Discussionmentioning

confidence: 99%

“…Hydrocarbons are transported by lipoproteins to different tissues in the insect body, including the ovaries and the cuticle. In the ovaries they are incorporated in developing oocytes (34). Differences between the profiles of the eggs and the cuticle in C. floridanus may be due to a different transport mechanism of hydrocarbons or to changes after oviposition.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Surface hydrocarbons of queen eggs regulate worker reproduction in a social insect

Endler

Liebig

Schmitt

et al. 2004

Proc. Natl. Acad. Sci. U.S.A.

258

219

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A hitherto largely unresolved problem in behavioral biology is how workers are prevented from reproducing in large insect societies with high relatedness. Signals of the queen are assumed to inform the nestmates about her presence in the colony, which leads to indirect fitness benefits for workers. In the ant Camponotus floridanus, we found such a signal located on queen-laid eggs. In groups of workers that were regularly provided with queen-laid eggs, larvae, and cocoons, with larvae and cocoons alone, or with no brood, only in the groups with queen-laid eggs did workers not lay eggs. Thus, the eggs seem to inform the nestmates about the queen's presence, which induces workers to refrain from reproducing. The signal on queen-laid eggs is presumably the same that enables workers to distinguish between queen-and worker-laid eggs. Despite their viability, the latter are destroyed by workers when given a choice between both types. Queen-and worker-laid eggs differ in their surface hydrocarbons in a way similar to the way fertile queens differ from workers in the composition of their cuticular hydrocarbons. When we transferred hydrocarbons from the queen cuticle to worker-laid eggs, the destruction of those eggs was significantly mitigated. We conclude that queen-derived hydrocarbon labels inform workers about the presence of a fertile queen and thereby regulate worker reproduction.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Surface hydrocarbons of queen eggs regulate worker reproduction in a social insect

Endler

Liebig

Schmitt

et al. 2004

Proc. Natl. Acad. Sci. U.S.A.

258

219

View full text Add to dashboard Cite

show abstract

“…Oenocytes are large abdominal cells that are rich in smooth endoplasmic reticulum and mitochondria and have been implicated in hydrocarbon and lipid synthesis (Chapman 1998;Fan et al 2002). Cuticular hydrocarbons and pheromones are produced by abdominal oenocytes and are shuttled through the hemolymph by high-density lipophorin (Gu et al 1995;Schal et al 1998;Sevala et al 1999). In mosquitoes, oenocytes might produce AT or might be a target for the peptide.…”

Section: Discussionmentioning

confidence: 99%

Immunostaining for allatotropin and allatostatin-A and -C in the mosquitoes Aedes aegypti and Anopheles albimanus

Hernández‐Martínez

Lanz‐Mendoza

et al. 2005

Cell Tissue Res

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Confocal laser-scanning microscopy was used to carry out a comparative study of the immunostaining for three families of neuropeptides, viz., allatostatin-A (AS-A), allatostatin-C (AS-C) and allatotropin (AT), in adult female mosquitoes of Aedes aegypti and Anopheles albimanus. The specific patterns of immunostaining for each of the three peptides were similar in both species. The antisera raised against AT, AS-A, and AS-C revealed intense immunoreactivity in the cells of each protocerebral lobe of the brain and stained cells in each of the ventral ganglia and neuronal projections innervating various thoracic and abdominal tissues. Only the AS-A antiserum labeled immunoreactive endocrine cells in the midgut. The distribution of the peptides supports the concept that they play multiple regulatory roles in both species.

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“…These lipids then presumably reseal the cuticle by spreading out to fill in the scratches and furrows caused by abrasion (Lockey, 1988;Schal et al, 1998;Wigglesworth, 1945). The ability of insects to recover from abrasion probably depends on the amount of damage incurred and whether damage is restricted to surface layers or if it also extends to the cuticle (see Wigglesworth, 1937).…”

Section: Recovery From Cuticle Abrasionmentioning

confidence: 99%

Effect of cuticular abrasion and recovery on water loss rates in queens of the desert harvester ant Messor pergandei

Johnson

Kaiser

Quinlan

et al. 2011

Journal of Experimental Biology

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SUMMARYFactors that affect water loss rates (WLRs) are poorly known for organisms in natural habitats. Seed-harvester ant queens provide an ideal system for examining such factors because WLRs for mated queens excavated from their incipient nests are twofold to threefold higher than those of alate queens. Indirect data suggest that this increase results from soil particles abrading the cuticle during nest excavation. This study provides direct support for the cuticle abrasion hypothesis by measuring total mass-specific WLRs, cuticular abrasion, cuticular transpiration, respiratory water loss and metabolic rate for queens of the ant Messor pergandei at three stages: unmated alate queens, newly mated dealate queens (undug foundresses) and mated queens excavated from their incipient nest (dug foundresses); in addition we examined these processes in artificially abraded alate queens. Alate queens had low WLRs and low levels of cuticle abrasion, whereas dug foundresses had high WLRs and high levels of cuticle abrasion. Total WLR and cuticular transpiration were lowest for alate queens, intermediate for undug foundresses and highest for dug foundresses. Respiratory water loss contributed ~10% of the total WLR and was lower for alate queens and undug foundresses than for dug foundresses. Metabolic rate did not vary across stages. Total WLR and cuticular transpiration of artificially abraded alate queens increased, whereas respiratory water loss and metabolic rate were unaffected. Overall, increased cuticular transpiration accounted for essentially all the increased total water loss in undug and dug foundresses and artificially abraded queens. Artificially abraded queens and dug foundresses showed partial recovery after 14days.

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Sites of Synthesis and Transport Pathways of Insect Hydrocarbons: Cuticle and Ovary as Target Tissues

Cited by 123 publications

References 67 publications

Surface hydrocarbons of queen eggs regulate worker reproduction in a social insect

Surface hydrocarbons of queen eggs regulate worker reproduction in a social insect

Immunostaining for allatotropin and allatostatin-A and -C in the mosquitoes Aedes aegypti and Anopheles albimanus

Effect of cuticular abrasion and recovery on water loss rates in queens of the desert harvester ant Messor pergandei

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