Transport of resistance-inducing sterols in phloem sap of barley.
After root application of [7alpha-3H]-7beta-hydroxysitosterol and [3alpha,6beta-3H2]-6alpha-hydroxylathosterol these sterols could be detected in the leaves and phloem sap feeding aphids. These results imply that the phloem sap is a sterol transport system in barley plants.
Lehrer
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AT
University of Bayreuth, Organic Chemistry I/2, Germany.
Dugassa-Gobena
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D
Vidal
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S
Seifert
K
K
D000818:Animals; D001042:Aphids; D001692:Biological Transport; D002784:Cholesterol / Q000031:analogs & derivatives / Q000378:metabolism*; D008401:Gas Chromatography-Mass Spectrometry; D001467:Hordeum / Q000502:physiology*; D008958:Models, Molecular; D015394:Molecular Structure; D018515:Plant Leaves / Q000502:physiology; D018517:Plant Roots / Q000502:physiology; D012855:Sitosterols / Q000378:metabolism*; D014316:Tritium
C421175:6-hydroxylathosterol; D012855:Sitosterols; D014316:Tritium; C011486:hydroxysitosterol; D002784:Cholesterol