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Literature DB >> 846322

Sterol composition and phytosterol utilization and metabolism in the milkweed bug.

J A Svoboda, S R Dutky, W E Robbins, J N Kaplanis.

Abstract

Analysis of the sterols of the milkweed bug, Oncopeltus fasciatus (Dallas) and dietary sunflowerseeds revealed that there is little, if any, conversion of dietary C28 OR C29 phytosterols to cholesterol in this phytophagous insect. The dietary sterols are apparently utilized with little alteration both during development to the adult stage and egg production, and cholesterol comprises less than 1% of the sterols in either adult males and females or in the eggs. The significance of these findings are discussed in light of the recent discovery that the C28-ecdysone, makisterone A, is the predominant molting hormone inthe embryonated egg of the milkweed bug.

Entities: Chemical Species

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Year: 1977 PMID： 846322 DOI： 10.1007/BF02533356

Source DB: PubMed Journal: Lipids ISSN： 0024-4201 Impact factor: 1.880

5 in total

Review 1. Recent developments in insect steroid metabolism.

Authors: J A Svoboda; J N Kaplanis; W E Robbins; M J Thompson
Journal: Annu Rev Entomol Date: 1975 Impact factor: 19.686

2. Makisterone A:a 28-carbon hexahydroxy molting hormone from the embryo of the milkweed bug.

Authors: J N Kaplanis; S R Dutky; W E Robbins; M J Thompson; E L Lindquist; D H Horn; M N Galbraith
Journal: Science Date: 1975-11-14 Impact factor: 47.728

3. Unusual composition of sterols in a phytophagous insect, Mexican bean beetle reared on soybean plants.

Authors: J A Svoboda; M J Thompson; T C Elden; W E Robbins
Journal: Lipids Date: 1974-10 Impact factor: 1.880

4. Desmosterol, an intermediate in dealkylation of beta-sitosterol in the tobacco hornworm.

Authors: J A Svoboda; M J Thompson; W E Robbins
Journal: Life Sci Date: 1967-02-15 Impact factor: 5.037

5. Unique pathways of sterol metabolism in the Mexican bean beetle, a plant-feeding insect.

Authors: J A Svoboda; M J Thompson; W E Robbins; T C Elden
Journal: Lipids Date: 1975-09 Impact factor: 1.880

5 in total

7 in total

Sterol composition and phytosterol utilization and metabolism in the milkweed bug.

Review 1. Recent developments in insect steroid metabolism.

2. Makisterone A:a 28-carbon hexahydroxy molting hormone from the embryo of the milkweed bug.

3. Unusual composition of sterols in a phytophagous insect, Mexican bean beetle reared on soybean plants.

4. Desmosterol, an intermediate in dealkylation of beta-sitosterol in the tobacco hornworm.

5. Unique pathways of sterol metabolism in the Mexican bean beetle, a plant-feeding insect.

1. The sterols of the khapra beetle, Trogoderma granarium Everts.

2. Neutral sterols of sawflies (Symphyta): their relationship to other Hymenoptera.

3. Insect steroid metabolism.

4. Same host-plant, different sterols: variation in sterol metabolism in an insect herbivore community.

5. Utilization and metabolism of dietary sterols in the honey bee and the yellow fever mosquito.

6. Selective sterol transfer in the honey bee: Its significance and relationship to other hymenoptera.

7. Maternal effects and maternal selection arising from variation in allocation of free amino acid to eggs.