Tocopheryl acetates from the pupal exocrine secretion of the squash beetle, Epilachna borealis (Coccinellidae)

A. B. Attygalle; S. R. Smedley; T. Eisner; J. Meinwald

doi:10.1007/BF01969741

Tocopheryl acetates from the pupal exocrine secretion of the squash beetle, Epilachna borealis (Coccinellidae)

A. B. Attygalle, S. R. Smedley, T. Eisner, J. Meinwald

Department of Chemistry and Chemical Biology

Cornell University

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

The oily droplets on the pupal integumental hairs of the squash beetle Epilachna borealis contain a mixture of α-, β-, γ-, and δ-tocopheryl acetates as major constituents. In addition, the secretion contains a number of minor components that appear to be dehydrocongeners of the major components. This is the first report of the occurrence of acetate esters of any tocopherol in nature.

Original language	English
Pages (from-to)	616-620
Number of pages	5
Journal	Experientia
Volume	52
Issue number	6
DOIs	https://doi.org/10.1007/BF01969741
State	Published - 1996

Keywords

Beetle
Coccinellidae
Defensive secretion
Tocopherol
Vitamin E acetate

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10.1007/BF01969741

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abstract = "The oily droplets on the pupal integumental hairs of the squash beetle Epilachna borealis contain a mixture of α-, β-, γ-, and δ-tocopheryl acetates as major constituents. In addition, the secretion contains a number of minor components that appear to be dehydrocongeners of the major components. This is the first report of the occurrence of acetate esters of any tocopherol in nature.",

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AU - Attygalle, A. B.

AU - Smedley, S. R.

AU - Eisner, T.

AU - Meinwald, J.

PY - 1996

Y1 - 1996

N2 - The oily droplets on the pupal integumental hairs of the squash beetle Epilachna borealis contain a mixture of α-, β-, γ-, and δ-tocopheryl acetates as major constituents. In addition, the secretion contains a number of minor components that appear to be dehydrocongeners of the major components. This is the first report of the occurrence of acetate esters of any tocopherol in nature.

AB - The oily droplets on the pupal integumental hairs of the squash beetle Epilachna borealis contain a mixture of α-, β-, γ-, and δ-tocopheryl acetates as major constituents. In addition, the secretion contains a number of minor components that appear to be dehydrocongeners of the major components. This is the first report of the occurrence of acetate esters of any tocopherol in nature.

KW - Beetle

KW - Coccinellidae

KW - Defensive secretion

KW - Tocopherol

KW - Vitamin E acetate

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VL - 52

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EP - 620

JO - Experientia

JF - Experientia

IS - 6

ER -

Tocopheryl acetates from the pupal exocrine secretion of the squash beetle, Epilachna borealis (Coccinellidae)

Abstract

Keywords

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