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פותח על ידי קלירמאש פתרונות בע"מ -
Unique pathways of sterol metabolism in the Mexican bean beetle, a plant-feeding insect
Year:
1975
Source of publication :
Lipids
Authors :
סבובודה, ג'יימס
;
.
Volume :
10
Co-Authors:
Svoboda, J.A., Insect Physiology Laboratory, U.S. Department of Agriculture, Agricultural Research Service, Beltsville, 20705, Maryland, United States
Thompson, M.J., Insect Physiology Laboratory, U.S. Department of Agriculture, Agricultural Research Service, Beltsville, 20705, Maryland, United States
Robbins, W.E., Insect Physiology Laboratory, U.S. Department of Agriculture, Agricultural Research Service, Beltsville, 20705, Maryland, United States
Elden, T.C., Applied Plant Genetics Laboratory, U.S. Department of Agriculture, Agricultural Research Service, Beltsville, 20705, Maryland, United States
Facilitators :
From page:
524
To page:
527
(
Total pages:
4
)
Abstract:
Radiolabeled sterols,14C-cholesterol,14C-cholestanol,3H-stigmasterol,3H-stigmastanol, and3H-sitosterol, were fed to larvae of the Mexican bean beetle, Epilachna varivestis Mulsant, by coating soybean leaves. Free sterol and sterol ester fractions from treated insects were isolated and analyzed, and in each case nearly 30% or more of total radiolabeled sterols retained by the insect were found in the sterol ester fraction after 8 days. Δ5 sterols were readily reduced to stanols, and C29-stanols thus produced were dealkylated to cholestanol. Significant amounts of labeled lathosterol were formed from Δ5-C29 sterols; little, if any, radiolabeled cholesterol was detected in insects fed either of the labeled Δ5-phytosterols, stigmasterol or sitosterol. Sterol metabolism of this insect thus differs considerably from that found for most phytophagous insects. © 1975 American Oil Chemists' Society.
Note:
Related Files :
Animal
arthropod
larva
metabolism
phytosterol
radioisotope
Sitosterols
Sterols
stigmasterol
theoretical study
עוד תגיות
תוכן קשור
More details
DOI :
10.1007/BF02532353
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
21329
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:43
Scientific Publication
Unique pathways of sterol metabolism in the Mexican bean beetle, a plant-feeding insect
10
Svoboda, J.A., Insect Physiology Laboratory, U.S. Department of Agriculture, Agricultural Research Service, Beltsville, 20705, Maryland, United States
Thompson, M.J., Insect Physiology Laboratory, U.S. Department of Agriculture, Agricultural Research Service, Beltsville, 20705, Maryland, United States
Robbins, W.E., Insect Physiology Laboratory, U.S. Department of Agriculture, Agricultural Research Service, Beltsville, 20705, Maryland, United States
Elden, T.C., Applied Plant Genetics Laboratory, U.S. Department of Agriculture, Agricultural Research Service, Beltsville, 20705, Maryland, United States
Unique pathways of sterol metabolism in the Mexican bean beetle, a plant-feeding insect
Radiolabeled sterols,14C-cholesterol,14C-cholestanol,3H-stigmasterol,3H-stigmastanol, and3H-sitosterol, were fed to larvae of the Mexican bean beetle, Epilachna varivestis Mulsant, by coating soybean leaves. Free sterol and sterol ester fractions from treated insects were isolated and analyzed, and in each case nearly 30% or more of total radiolabeled sterols retained by the insect were found in the sterol ester fraction after 8 days. Δ5 sterols were readily reduced to stanols, and C29-stanols thus produced were dealkylated to cholestanol. Significant amounts of labeled lathosterol were formed from Δ5-C29 sterols; little, if any, radiolabeled cholesterol was detected in insects fed either of the labeled Δ5-phytosterols, stigmasterol or sitosterol. Sterol metabolism of this insect thus differs considerably from that found for most phytophagous insects. © 1975 American Oil Chemists' Society.
Scientific Publication
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