Can silicon improve defense responses of cucumber seedlings to pythium-induced damping off disease?

Al-Sadi, A. M., Al-Said, F. A., Deadman, M. L., Drenth, A. and Aitken, E. A. B. (2010). Can silicon improve defense responses of cucumber seedlings to pythium-induced damping off disease?. In: Proceedings of the Fourth International Symposium on Cucurbits. The 4th International Cucurbit Symposium, Changsha, China, (441-444). 21-26 September 2009.

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Author Al-Sadi, A. M.
Al-Said, F. A.
Deadman, M. L.
Drenth, A.
Aitken, E. A. B.
Title of paper Can silicon improve defense responses of cucumber seedlings to pythium-induced damping off disease?
Conference name The 4th International Cucurbit Symposium
Conference location Changsha, China
Conference dates 21-26 September 2009
Proceedings title Proceedings of the Fourth International Symposium on Cucurbits   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 2010
Year available 2010
Sub-type Fully published paper
ISBN 9789066055131
ISSN 0567-7572
Volume 871
Start page 441
End page 444
Total pages 4
Collection year 2011
Language eng
Formatted Abstract/Summary
Laboratory experiments were established to study the influence of silicon on improvements in the defense response of cucumber seedlings to Pythium-induced damping-off disease. Supplementing cucumber seedlings with different concentrations of silicon (0, 100, 200, 500, 1000 and 2500 ppm) for 7 days prior to inoculation with P. aphanidermatum isolates did not result in a significant reduction in seedling mortality at 20 and 25°C. Extending the period of supplementation to 14 days also did not result in any improvement of defense responses. In addition, mortality levels in the presence of silicon were not reduced when cucumber seedlings were inoculated with three isolates of P. aphanidermatum differing in their aggressiveness levels (weak, moderate and very aggressive). This could be related to a rapid infection by Pythium of cucumber seedlings in relation to a slower rate of induction of defense responses by silicon.
Copyright © 2011 Elsevier B.V. All rights reserved.
Keyword Pythium
Kasil 2040
Resistance
Damping-off
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status Non-UQ

Document type: Conference Paper
Collections: Non HERDC
School of Agriculture and Food Sciences
 
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Created: Wed, 09 Mar 2011, 10:13:59 EST by Dr Andre Drenth on behalf of ___Unknown Unit