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פותח על ידי קלירמאש פתרונות בע"מ -
Sterol utilization in honey bees fed a synthetic diet: Analysis of prepupal sterols
Year:
1980
Source of publication :
Journal of Insect Physiology
Authors :
סבובודה, ג'יימס
;
.
Volume :
26
Co-Authors:
Svoboda, J.A., Insect Physiology Laboratory, Agricultural Research, SEA, Beltsville, MD 20705, United States
Thompson, M.J., Insect Physiology Laboratory, Agricultural Research, SEA, Beltsville, MD 20705, United States
Herbert Jr., E.W., Insect Physiology Laboratory, Agricultural Research, SEA, Beltsville, MD 20705, United States
Shimanuki, H., Insect Physiology Laboratory, Agricultural Research, SEA, Beltsville, MD 20705, United States
Facilitators :
From page:
291
To page:
294
(
Total pages:
4
)
Abstract:
The sterols of prepupal honey bees, Apis mellifera L., from brood reared by workers fed chemically-defined synthetic diets containing cholesterol, campesterol, sitosterol, stigmasterol, 24-methylenecholesterol, or no sterol over a 12-week period were isolated, identified, and quantified. The major sterol present in each prepupal sample was 24-methylenecholesterol, but significant levels of sitosterol and isofucosterol were also present in every case, as was a very small percentage of desmosterol (usually < 1%). This is the first report of isofucosterol being identified in the sterols of the honey bee. A considerably larger percentage of each dietary sterol was found in prepupae reared by workers fed that particular sterol in the diet. This was most dramatic in the case of the cholesterol diet in which case cholesterol content increased to as much as 17.2% of the prepupal sterols, whereas cholesterol had not exceeded 2.2% in samples from other diet regimens. However, stigmasterol comprised no more than 6.3% of the total sterols in any sample from prepupae fed the stigmasterol diet. The preponderance of 24-methylenecholesterol in all prepupae, regardless of the dietary sterol provided to the workers, as well as the lesser quantities of sitosterol and isofucosterol present in all samples, suggest a unique system of utilization and metabolism of these dietary sterols by the worker bees. Apparently they make available to the brood varying amounts of unchanged dietary sterol plus considerable and fairly constant portions of 24-methylenecholesterol, sitosterol, and isofucosterol drawn from their own sterol pools. © 1980.
Note:
Related Files :
24-methylenecholesterol
Apis mellifera L.
Dietary sterols
prepupae
prepupal sterols
sitosterol
sterol analysis
stigmasterol
עוד תגיות
תוכן קשור
More details
DOI :
10.1016/0022-1910(80)90136-5
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
18674
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:23
Scientific Publication
Sterol utilization in honey bees fed a synthetic diet: Analysis of prepupal sterols
26
Svoboda, J.A., Insect Physiology Laboratory, Agricultural Research, SEA, Beltsville, MD 20705, United States
Thompson, M.J., Insect Physiology Laboratory, Agricultural Research, SEA, Beltsville, MD 20705, United States
Herbert Jr., E.W., Insect Physiology Laboratory, Agricultural Research, SEA, Beltsville, MD 20705, United States
Shimanuki, H., Insect Physiology Laboratory, Agricultural Research, SEA, Beltsville, MD 20705, United States
Sterol utilization in honey bees fed a synthetic diet: Analysis of prepupal sterols
The sterols of prepupal honey bees, Apis mellifera L., from brood reared by workers fed chemically-defined synthetic diets containing cholesterol, campesterol, sitosterol, stigmasterol, 24-methylenecholesterol, or no sterol over a 12-week period were isolated, identified, and quantified. The major sterol present in each prepupal sample was 24-methylenecholesterol, but significant levels of sitosterol and isofucosterol were also present in every case, as was a very small percentage of desmosterol (usually < 1%). This is the first report of isofucosterol being identified in the sterols of the honey bee. A considerably larger percentage of each dietary sterol was found in prepupae reared by workers fed that particular sterol in the diet. This was most dramatic in the case of the cholesterol diet in which case cholesterol content increased to as much as 17.2% of the prepupal sterols, whereas cholesterol had not exceeded 2.2% in samples from other diet regimens. However, stigmasterol comprised no more than 6.3% of the total sterols in any sample from prepupae fed the stigmasterol diet. The preponderance of 24-methylenecholesterol in all prepupae, regardless of the dietary sterol provided to the workers, as well as the lesser quantities of sitosterol and isofucosterol present in all samples, suggest a unique system of utilization and metabolism of these dietary sterols by the worker bees. Apparently they make available to the brood varying amounts of unchanged dietary sterol plus considerable and fairly constant portions of 24-methylenecholesterol, sitosterol, and isofucosterol drawn from their own sterol pools. © 1980.
Scientific Publication
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