Detection of Phylloxera infestation in grapevines by NMR methods

Tucker, D. J., Lamb, D. L., Powell, K. S., Blanchfield, A. L. and Brereton, I. M. (2007). Detection of Phylloxera infestation in grapevines by NMR methods. In: Kevin S. Powell and Carolyn J. Threthowan, Proceedings of the Third International Grapevine Phylloxera Symposium. III International Grapevine Phylloxera Symposium, Fremantle, Australia, (173-181). 2-7 October 2005.

Author Tucker, D. J.
Lamb, D. L.
Powell, K. S.
Blanchfield, A. L.
Brereton, I. M.
Title of paper Detection of Phylloxera infestation in grapevines by NMR methods
Conference name III International Grapevine Phylloxera Symposium
Conference location Fremantle, Australia
Conference dates 2-7 October 2005
Convener K. S. Powell
Proceedings title Proceedings of the Third International Grapevine Phylloxera Symposium   Check publisher's open access policy
Journal name Acta Horticulturae   Check publisher's open access policy
Place of Publication Leuven, Belgium
Publisher International Society for Horticultural Science
Publication Year 2007
Sub-type Fully published paper
ISBN 9789066051706
ISSN 0567-7572
Editor Kevin S. Powell
Carolyn J. Threthowan
Volume 733
Issue 733
Start page 173
End page 181
Total pages 9
Collection year 2008
Language eng
Abstract/Summary Principal component analysis of 1H NMR spectra of dichloromethane extracts taken from grapevine leaves reveals that phylloxera infestation of the root system causes metabolic changes in the leaves of infested grapevines, both in the field and in the glasshouse. A number of potential markers of phylloxera infestation were detected but their presence is transient and varies with the stage of the growing season. The changes in the metabolic profile caused by phylloxera infestation more closely resemble those caused by nitrogen deficiency than those induced by water stress. A reduction in the ratio of linoleic acid to linolenic acid in the triglyceride component of the leaf extract may provide an indicator of phylloxera infestation.
Subjects 250402 Analytical Spectrometry
780103 Chemical sciences
Keyword Daktulosphaira vitifoliae
Cabernet Sauvignon
Nuclear magnetic resonance
Principal component analysis
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Acta Horticulturae (CD-ROM) electronic resource; no. 733.

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Created: Fri, 11 Apr 2008, 11:07:43 EST by Lesley-Jayne Jerrard on behalf of Centre For Magnetic Resonance