Hydrocarbon circulation and colonial signature in Pachycondyla villosa.

Détails

ID Serval
serval:BIB_710CC6170389
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Hydrocarbon circulation and colonial signature in Pachycondyla villosa.
Périodique
Journal of Insect Physiology
Auteur(s)
Lucas C., Pho D.B., Fresneau D., Jallon J.M.
ISSN
0022-1910 (Print)
ISSN-L
0022-1910
Statut éditorial
Publié
Date de publication
2004
Peer-reviewed
Oui
Volume
50
Numéro
7
Pages
595-607
Langue
anglais
Notes
Publication types: Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Résumé
In ants, both cuticular and postpharyngeal gland (PPG) hydrocarbons (HCs) have been involved in nestmate recognition. However, no detailed comparison is available. A comparative study including also high density lipophorin (HDLp), an internal HC carrier, was therefore undertaken on Pachycondyla villosa. Purified HDLp is an 820 kDa lipoprotein with a density of 1.114 g/ml and two 245 and 80 kDa apo-proteins. Its hydrocarbon profile is very similar with the cuticular one, in agreement with its hydrocarbon carrier function. Conversely, n-alkanes and externally branched monomethylalkanes are markedly decreased in the PPG. According to their physical properties, this suggests that they are involved in waterproofing on the cuticle. The PPG actually contains only internally branched mono-, dimethylalkanes or monomethylalkenes; their greater fluidity is more adequate for chemical communication. The percentages of some of them are statistically not different between the cuticle and PPG. Their mixtures vary with colonies and they may thus be involved in colonial signature. A scheme for hydrocarbon circulation is discussed, involving lipophorin, cuticle, PPG and self-grooming in one individual, a pathway complementary or alternative to the selective delivery by lipophorin in some other insects. HCs are then distributed between nestmates' cuticles through allo-grooming and physical contacts.
Mots-clé
Animals, Exocrine Glands/chemistry, Exocrine Glands/physiology, Female, Hydrocarbons/isolation & purification, Hymenoptera/chemistry, Hymenoptera/physiology, Insect Proteins/isolation & purification, Insect Proteins/physiology, Lipoproteins/isolation & purification, Lipoproteins, HDL/isolation & purification, Male, Pheromones/isolation & purification, Pheromones/physiology, Recognition (Psychology)/physiology, Social Environment, Species Specificity
Pubmed
Web of science
Création de la notice
19/11/2007 10:32
Dernière modification de la notice
20/08/2019 14:29
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