Chemical composition and efficacy of cephalic gland secretion ofArmitermes chagresi (Isoptera: Termitidae)

1984 ◽  
Vol 10 (3) ◽  
pp. 531-543 ◽  
Author(s):  
James F. A. Traniello ◽  
Barbara L. Thorne ◽  
Glenn D. Prestwich
Keyword(s):  
Chemical Composition ◽  
Gland Secretion ◽  
Cephalic Gland

Chemical Composition of the Rectal Gland and Volatiles Released by Female Queensland Fruit Fly, Bactrocera tryoni (Diptera: Tephritidae)

2019 ◽  
Vol 48 (4) ◽  
pp. 807-814 ◽  
Author(s):  
Ashraf M El-Sayed ◽  
Uppala Venkatesham ◽  
C Rikard Unelius ◽  
Andrew Sporle ◽  
Jeanneth Pérez ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Chemical Analysis ◽  
Fruit Fly ◽  
Gland Secretion ◽  
Rectal Gland ◽  
Bactrocera Tryoni ◽  
Headspace Volatiles ◽  
Ethyl Palmitate ◽  
Minor Compounds

Abstract The composition of the rectal gland secretion and volatiles emitted by female Queensland fruit fly, Bactrocera tryoni was investigated. Esters were found to be the main compounds in the gland extracts and headspace, while amides were the minor compounds in the gland extracts and headspace. Ethyl dodecanoate, ethyl tetradecanoate, ethyl (Z9)-hexadecenoate and ethyl palmitate were the main esters in the gland extracts, while ethyl dodecanoate and ethyl tetradecanoate were the main esters in the headspace. Four amides (N-(3-methylbutyl)acetamide), N-(2-methylbutyl)propanamide, N-(3-methylbutyl)propanamide, and N-(3-methylbutyl)-2-methylpropanamide were found in the gland extracts and the headspace. Among the amides, N-(3-methylbutyl)acetamide and N-(3-methylbutyl)propanamide were the main amides in the gland extracts and the headspace. Traces of three spiroacetals were found both in the gland extracts and in the headspace. (E,E)-2,8-Dimethyl-1,7-dioxaspiro[5.5]undecane, (E,E)-2-ethyl-8-methyl-1,7-dioxaspiro[5.5]undecane, (E,E)-2-propyl-8-methyl-1,7-dioxaspiro[5.5]undecane. All compounds found in the headspace were present in the extract of the rectal gland suggesting that the rectal gland is the main source of the headspace volatiles, whose function remains to be elucidated. This is the first comprehensive chemical analysis of the rectal gland secretions and volatiles of female B. tryoni, and further laboratory and field bioassays are required to determine the function of compounds identified in this study. Discovery of the same amides previously identified in the male rectal gland in the female rectal gland raises questions about the pheromonal role previously suggested for these compounds.

Schistosoma mansoni Cercariae: Stimulation of Acetabular Gland Secretion Is Adapted to the Chemical Composition of Mammalian Skin

1997 ◽  
Vol 83 (6) ◽  
pp. 1079 ◽  
Author(s):  
Wilfried Haas ◽  
Dirk Diekhoff ◽  
Karin Koch ◽  
Gerold Schmalfuss ◽  
Christina Loy
Keyword(s):  
Chemical Composition ◽  
Schistosoma Mansoni ◽  
Gland Secretion ◽  
Mammalian Skin ◽  
Stimulation Of

Chemical Composition of the Nasal Gland Secretion from the Marsh Deer Odocoileus ( DorcelaphusJ dichotomus (Illiger)

1976 ◽  
Vol 31 (9-10) ◽  
pp. 496-498 ◽  
Author(s):  
Jürgen Jacob ◽  
Ernst Von Lehmann
Keyword(s):  
Fatty Acids ◽  
Chemical Composition ◽  
Hydroxy Fatty Acids ◽  
Gland Secretion ◽  
Cholesterol Esters ◽  
Double Bonds ◽  
Lipid Mixture

Abstract The secretion of the nasal gland from the marsh deer (Odocoileus dichotomus) has shown to be a lipid mixture predominantly containing cholesterol esters, mono-and diester waxes, the latter of which containing 2-hydroxy fatty acids. The alcoholic constituents of the mono-and diester waxes contain considerable amounts of mono-unsaturated homologues, all with double bonds in(ω-9) position.

scholarly journals Chemical analysis reveals sex differences in the preen gland secretion of breeding Blue Tits

2021 ◽  
Author(s):  
Barbara A. Caspers ◽  
Reinaldo Marfull ◽  
Tim Dannenhaus ◽  
Jan Komdeur ◽  
Peter Korsten
Keyword(s):  
Sex Differences ◽  
Chemical Composition ◽  
Mate Choice ◽  
Bird Species ◽  
Visual Signals ◽  
Gland Secretion ◽  
Preen Gland ◽  
Cyanistes Caeruleus ◽  
Social Lives ◽  
Blue Tits

AbstractAcoustic and visual signals are well known to play important roles in social communication in birds. Growing evidence suggests that many bird species, including species of songbirds, additionally have a well-developed sense of smell. However, we are still at the beginning of understanding the potential importance of chemical communication in the social lives of birds, for example in mate choice. The secretion of the preen gland may be an important contributor to the chemical phenotype of birds. Here, we report on a first characterisation of the chemical composition of the preen gland secretion of the Blue Tit (Cyanistes caeruleus), a common songbird which is an often used model species in animal behaviour and ecology, in particular also in studies of sexual selection and (extra-pair) mate choice. We found sex differences in the composition of the preen gland secretion in breeding Blue Tits. Females further tended to have a larger number of putative compounds in their secretions compared to males. We briefly discuss the possible implications of these findings and speculate that the chemical composition of the preen gland secretion may be a sexually selected trait in Blue Tits. Our preliminary findings warrant follow-up research into the patterns of within- and among individual variation in the chemical composition of the preen gland secretion as well as the identification of the main chemical compounds involved.

Lack of patriline-specific differences in chemical composition of the metapleural gland secretion in Acromyrmex octospinosus

2003 ◽  
Vol 50 (2) ◽  
pp. 113-119 ◽  
Author(s):  
D. Ortius-Lechner ◽  
H. C. Petersen ◽  
J. J. Boomsma ◽  
R. Maile ◽  
E. D. Morgan
Keyword(s):  
Chemical Composition ◽  
Gland Secretion ◽  
Acromyrmex Octospinosus ◽  
Metapleural Gland
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