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Makisterone C: A 29‐carbon ecdysteroid from developing embryos of the cotton stainer bug, Dysdercus fasciatus
Year:
1991
Authors :
סבובודה, ג'יימס
;
.
Volume :
18
Co-Authors:
Feldlaufer, M.F., Insect Neurobiology and Hormone Laboratory, USDA, Agricultural Research Service, Beltsville, Maryland, United States
Weirich, G.F., Insect Neurobiology and Hormone Laboratory, USDA, Agricultural Research Service, Beltsville, Maryland, United States
Lusby, W.R., Insect Neurobiology and Hormone Laboratory, USDA, Agricultural Research Service, Beltsville, Maryland, United States
Svoboda, J.A., Insect Neurobiology and Hormone Laboratory, USDA, Agricultural Research Service, Beltsville, Maryland, United States
Facilitators :
From page:
71
To page:
79
(
Total pages:
9
)
Abstract:
An ecdysteroid RIA was used to determine the ecdysteroid titer in developing embryos of Dysdercus fasciatus and revealed that peak titer occurred approximately 120 h post‐oviposition. Analysis of neutral sterols at this time indicated sitosterol to be the predominant neutral sterol with lesser amounts of campesterol. Embryonic sterols were highly reflective of the sterols found in the cotton seed diet upon which previous generations of the bugs had fed. Analysis of the embryonic extract for ecdysteroids indicated the presence of both makisterone A and the 29‐carbon ecdysteroid makisterone C. Isolation of these compounds was accomplished by reversed‐phase and silica HPLC in conjunction with RIA, and the identification of both compounds was confirmed by mass spectrometry. No ecdysone or 20‐hydroxyecdysone was detected in the embryonic sample. Copyright © 1991 Wiley‐Liss, Inc.
Note:
Related Files :
campesterol
makisterone a
molting hormone
sitosterol
Sterols
עוד תגיות
תוכן קשור
More details
DOI :
10.1002/arch.940180202
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
18461
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:21
Scientific Publication
Makisterone C: A 29‐carbon ecdysteroid from developing embryos of the cotton stainer bug, Dysdercus fasciatus
18
Feldlaufer, M.F., Insect Neurobiology and Hormone Laboratory, USDA, Agricultural Research Service, Beltsville, Maryland, United States
Weirich, G.F., Insect Neurobiology and Hormone Laboratory, USDA, Agricultural Research Service, Beltsville, Maryland, United States
Lusby, W.R., Insect Neurobiology and Hormone Laboratory, USDA, Agricultural Research Service, Beltsville, Maryland, United States
Svoboda, J.A., Insect Neurobiology and Hormone Laboratory, USDA, Agricultural Research Service, Beltsville, Maryland, United States
Makisterone C: A 29‐carbon ecdysteroid from developing embryos of the cotton stainer bug, Dysdercus fasciatus
An ecdysteroid RIA was used to determine the ecdysteroid titer in developing embryos of Dysdercus fasciatus and revealed that peak titer occurred approximately 120 h post‐oviposition. Analysis of neutral sterols at this time indicated sitosterol to be the predominant neutral sterol with lesser amounts of campesterol. Embryonic sterols were highly reflective of the sterols found in the cotton seed diet upon which previous generations of the bugs had fed. Analysis of the embryonic extract for ecdysteroids indicated the presence of both makisterone A and the 29‐carbon ecdysteroid makisterone C. Isolation of these compounds was accomplished by reversed‐phase and silica HPLC in conjunction with RIA, and the identification of both compounds was confirmed by mass spectrometry. No ecdysone or 20‐hydroxyecdysone was detected in the embryonic sample. Copyright © 1991 Wiley‐Liss, Inc.
Scientific Publication
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