Production of free sterols by infected tubers of Ophrys lutea Cav.: identification by gas chromatography-mass spectrometry

Ergosterol, 24-ethyl-cholest-7,22-dien-3-β-ol, campesterol, sitosterol and cycloartenol could be detected in the infected tubers of Ophrys lutea Cav. by capillary gas chromatography and gas chromatography-mass spectrometry of the corresponding O-trimethylsilyl ethers and acetates. The uninfected tub...

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Bibliographic Details
Published in:	The New phytologist Vol. 106; no. 1; pp. 147 - 152
Main Authors:	Barroso, J, Neves, H.C, Pais, M.S.S
Format:	Journal Article
Language:	English
Published:	Oxford Academic Press 01-05-1987 Blackwell
Subjects:	Biological and medical sciences Cell membranes endophytes Endosymbionts Ethers Fundamental and applied biological sciences. Psychology Gas chromatography Infections mycorrhizae Ophrys lutea Parasitism and symbiosis Plant biochemistry Plant physiology and development Plants Sitosterols Sterols Tubers Monocotyledones Spermatophyta Orchidaceae Angiospermae Mycorrhiza Sterol
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Summary:	Ergosterol, 24-ethyl-cholest-7,22-dien-3-β-ol, campesterol, sitosterol and cycloartenol could be detected in the infected tubers of Ophrys lutea Cav. by capillary gas chromatography and gas chromatography-mass spectrometry of the corresponding O-trimethylsilyl ethers and acetates. The uninfected tubers only contained demethylsterols. No free sterols could be detected in the endophyte maintained in pure culture. The possible role of sterols in the stability of the host cell membranes in mycorrhizas of O. lutea is discussed.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0028-646X 1469-8137
DOI:	10.1111/j.1469-8137.1987.tb04798.x