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פותח על ידי קלירמאש פתרונות בע"מ -
Honeybees Dufour's gland - idiosyncrasy of a new queen signal
Year:
2002
Source of publication :
Apidologie
Authors :
סורוקר, ויקטוריה
;
.
Volume :
33
Co-Authors:

Katzav-Gozansky, T. and Hefetz, A.

Facilitators :
From page:
525
To page:
537
(
Total pages:
13
)
Abstract:

Dufour's gland (DG) secretion of queens in Apis mellifera is normally caste specific. In queenright (QR) workers it is composed of odd n alkanes, while in queens it also possesses long chain esters. However, glandular expression is plastic since queenless (QL) workers produce a queen-like secretion. Moreover, QR gland incubated in vitro produced these esters, indicating that glandular activity is regulated. We tested the hypothesis that the secretion is an egg marking pheromone. Chemical analysis of the egg coating revealed minute amounts of the queen esters, but neither queen secretion nor the synthetic esters were able to protect worker-laid eggs from policing, refuting the hypothesis. Analysis of abdominal tips further revealed that Dufour's egg secretion is also smeared on the abodominal cuticle, suggesting that its presence on egg surface may be due to passive contamination. Next, we tested the hypothesis that the secretion serves as a queen signal. Indeed queens, but not worker glandular secretion were attractive to workers.

Note:
Related Files :
bees
caste-specificity
Dufour's gland
honeybee, queen-signal
Honey bees
retinue behavior
עוד תגיות
תוכן קשור
More details
DOI :
https://doi.org/10.1051/apido:2002035
Article number:
0
Affiliations:
Database:
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
55575
Last updated date:
02/03/2022 17:27
Creation date:
13/07/2021 14:48
Scientific Publication
Honeybees Dufour's gland - idiosyncrasy of a new queen signal
33

Katzav-Gozansky, T. and Hefetz, A.

Honeybees Dufour's gland - idiosyncrasy of a new queen signal

Dufour's gland (DG) secretion of queens in Apis mellifera is normally caste specific. In queenright (QR) workers it is composed of odd n alkanes, while in queens it also possesses long chain esters. However, glandular expression is plastic since queenless (QL) workers produce a queen-like secretion. Moreover, QR gland incubated in vitro produced these esters, indicating that glandular activity is regulated. We tested the hypothesis that the secretion is an egg marking pheromone. Chemical analysis of the egg coating revealed minute amounts of the queen esters, but neither queen secretion nor the synthetic esters were able to protect worker-laid eggs from policing, refuting the hypothesis. Analysis of abdominal tips further revealed that Dufour's egg secretion is also smeared on the abodominal cuticle, suggesting that its presence on egg surface may be due to passive contamination. Next, we tested the hypothesis that the secretion serves as a queen signal. Indeed queens, but not worker glandular secretion were attractive to workers.

Scientific Publication
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