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פותח על ידי קלירמאש פתרונות בע"מ -
The fate of radiolabelled C28 and C29 phytosterols in the honey bee
Year:
1981
Source of publication :
Journal of Insect Physiology
Authors :
סבובודה, ג'יימס
;
.
Volume :
27
Co-Authors:
Svoboda, J.A., Insect Physiology Laboratory, Agricultural Research, SEA, Beltsville, MD 20705, United States
Herbert Jr., E.W., Bioenvironmental Bee Laboratory, Agricultural Research, SEA, Beltsville, MD 20705, United States
Thompson, M.J., Insect Physiology Laboratory, Agricultural Research, SEA, Beltsville, MD 20705, United States
Shimanuki, H., Bioenvironmental Bee Laboratory, Agricultural Research, SEA, Beltsville, MD 20705, United States
Facilitators :
From page:
183
To page:
188
(
Total pages:
6
)
Abstract:
The fate of radiolabelled campesterol, sitosterol and 24-methylenecholesterol fed in chemically-defined diets to honey bee (Apis mellifera L.) workers was determined. At various intervals, sterols of prepupae, newly emerged adults and queens were analyzed qualitatively, quantitatively and radiochemically and it was determined that there was not sufficient radioactivity associated with cholesterol and/or desmosterol in any of the samples to verify that any of the three C28 and C29 sterols was dealkylated and converted to cholesterol. Similarly, there was no evidence for the conversion of campesterol or sitosterol to 24-methylenecholesterol. It was concluded that the major portion of the sterols incorporated into the tissues of the brood larvae originated from the worker bees used to establish the colony. There is good evidence supporting the premise that the workers can make available sterols from their endogenous pools to the nutrient in the hive and that they can replenish these sterols with those from the artificial diet. The queen is also able to replenish sterols utilized in egg production from those obtained by the workers from the artificial diet, and at the end of nine weeks queens contained more than four times as much sterol, on a 'μg sterol per g fresh weight' basis, than was found in fertile queens at the beginning of the test period. © 1981.
Note:
Related Files :
defined diet
honey bee
prepupae
queens
radiolabelled sterols
sterol metabolism
workers
עוד תגיות
תוכן קשור
More details
DOI :
10.1016/0022-1910(81)90126-8
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
32105
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 01:07
Scientific Publication
The fate of radiolabelled C28 and C29 phytosterols in the honey bee
27
Svoboda, J.A., Insect Physiology Laboratory, Agricultural Research, SEA, Beltsville, MD 20705, United States
Herbert Jr., E.W., Bioenvironmental Bee Laboratory, Agricultural Research, SEA, Beltsville, MD 20705, United States
Thompson, M.J., Insect Physiology Laboratory, Agricultural Research, SEA, Beltsville, MD 20705, United States
Shimanuki, H., Bioenvironmental Bee Laboratory, Agricultural Research, SEA, Beltsville, MD 20705, United States
The fate of radiolabelled C28 and C29 phytosterols in the honey bee
The fate of radiolabelled campesterol, sitosterol and 24-methylenecholesterol fed in chemically-defined diets to honey bee (Apis mellifera L.) workers was determined. At various intervals, sterols of prepupae, newly emerged adults and queens were analyzed qualitatively, quantitatively and radiochemically and it was determined that there was not sufficient radioactivity associated with cholesterol and/or desmosterol in any of the samples to verify that any of the three C28 and C29 sterols was dealkylated and converted to cholesterol. Similarly, there was no evidence for the conversion of campesterol or sitosterol to 24-methylenecholesterol. It was concluded that the major portion of the sterols incorporated into the tissues of the brood larvae originated from the worker bees used to establish the colony. There is good evidence supporting the premise that the workers can make available sterols from their endogenous pools to the nutrient in the hive and that they can replenish these sterols with those from the artificial diet. The queen is also able to replenish sterols utilized in egg production from those obtained by the workers from the artificial diet, and at the end of nine weeks queens contained more than four times as much sterol, on a 'μg sterol per g fresh weight' basis, than was found in fertile queens at the beginning of the test period. © 1981.
Scientific Publication
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