Pathway of terpene excretion by the appendix of Sauromatum guttatum
Electron microscopy of the cells of the thermogenic appendix of Sauromatum guttatum teas revealed a fusion event between pocket-like structures of the rough endoplasmic reticulum (rER) and the plasma membrane. As a result of the fusion event, many regions of the plasma membrane have paired unit memb...
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| Veröffentlicht in: | Proceedings of the National Academy of Sciences - PNAS 1995-10, Vol.92 (22), p.10084-10088 |
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| container_title | Proceedings of the National Academy of Sciences - PNAS |
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| creator | Skubatz, H. (University of Washington, Seattle, WA.) Kunkel, D.D Patt, J.M Howald, W.N Hartmen, T.G Meeuse, B.J.D |
| description | Electron microscopy of the cells of the thermogenic appendix of Sauromatum guttatum teas revealed a fusion event between pocket-like structures of the rough endoplasmic reticulum (rER) and the plasma membrane. As a result of the fusion event, many regions of the plasma membrane have paired unit membranes (four leaflets instead of two). The fusion allows the transfer of osmiophilic material from the rER pockets to the plasma membrane, where the osmiophilic material is confined to bilayer, pocket-like structures. A clear correlation is found between the presence of the osmiophilic compound and sesquiterpenes. Prior to heat production, the rER- and plasma-membrane pockets are electron dense, and sesquiterpenes are detectable only in tissue extracts. On the day of beat production, electron-translucent pockets are subsequently found and the stored sesquiterpenes are released to the atmosphere. Three sesquiterpenes have been identified by gas chromatography-mass spectrometry as alpha-copaene and beta- and alpha-caryophyllene |
| doi_str_mv | 10.1073/pnas.92.22.10084 |
| format | Article |
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(University of Washington, Seattle, WA.) ; Kunkel, D.D ; Patt, J.M ; Howald, W.N ; Hartmen, T.G ; Meeuse, B.J.D</creator><creatorcontrib>Skubatz, H. (University of Washington, Seattle, WA.) ; Kunkel, D.D ; Patt, J.M ; Howald, W.N ; Hartmen, T.G ; Meeuse, B.J.D</creatorcontrib><description>Electron microscopy of the cells of the thermogenic appendix of Sauromatum guttatum teas revealed a fusion event between pocket-like structures of the rough endoplasmic reticulum (rER) and the plasma membrane. As a result of the fusion event, many regions of the plasma membrane have paired unit membranes (four leaflets instead of two). The fusion allows the transfer of osmiophilic material from the rER pockets to the plasma membrane, where the osmiophilic material is confined to bilayer, pocket-like structures. A clear correlation is found between the presence of the osmiophilic compound and sesquiterpenes. Prior to heat production, the rER- and plasma-membrane pockets are electron dense, and sesquiterpenes are detectable only in tissue extracts. On the day of beat production, electron-translucent pockets are subsequently found and the stored sesquiterpenes are released to the atmosphere. 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(University of Washington, Seattle, WA.)</au><au>Kunkel, D.D</au><au>Patt, J.M</au><au>Howald, W.N</au><au>Hartmen, T.G</au><au>Meeuse, B.J.D</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Pathway of terpene excretion by the appendix of Sauromatum guttatum</atitle><jtitle>Proceedings of the National Academy of Sciences - PNAS</jtitle><addtitle>Proc Natl Acad Sci U S A</addtitle><date>1995-10-24</date><risdate>1995</risdate><volume>92</volume><issue>22</issue><spage>10084</spage><epage>10088</epage><pages>10084-10088</pages><issn>0027-8424</issn><eissn>1091-6490</eissn><abstract>Electron microscopy of the cells of the thermogenic appendix of Sauromatum guttatum teas revealed a fusion event between pocket-like structures of the rough endoplasmic reticulum (rER) and the plasma membrane. As a result of the fusion event, many regions of the plasma membrane have paired unit membranes (four leaflets instead of two). 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| identifier | ISSN: 0027-8424 |
| ispartof | Proceedings of the National Academy of Sciences - PNAS, 1995-10, Vol.92 (22), p.10084-10088 |
| issn | 0027-8424 1091-6490 |
| language | eng |
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| source | JSTOR Archive Collection A-Z Listing; PubMed Central; Alma/SFX Local Collection; Free Full-Text Journals in Chemistry |
| subjects | ARACEAE Botany Cell membranes Cell walls COMPOSE VOLATIL COMPUESTO VOLATIL Electron microscopy Epidermal cells ESTRUCTURA CELULAR EXCRECION EXCRETION INFLORESCENCE Inflorescences INFLORESCENCIAS Materials Plants RETICULO ENDOPLASMATICO RETICULUM ENDOPLASMIQUE Sesquiterpenes SESQUITERPENOIDE SESQUITERPENOS STRUCTURE CELLULAIRE TERMORREGULACION Terpenes Thermogenesis THERMOREGULATION ULTRAESTRUCTURA ULTRASTRUCTURE |
| title | Pathway of terpene excretion by the appendix of Sauromatum guttatum |
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