Phenotypic and molecular characterization of resistance induction by single and combined application of chitosan and silicon in tomato against Ralstonia solanacearum
2013 | journal article. A publication with affiliation to the University of Göttingen.
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Phenotypic and molecular characterization of resistance induction by single and combined application of chitosan and silicon in tomato against Ralstonia solanacearum
Kiirika, L. M.; Stahl, F. & Wydra, K. (2013)
Physiological and Molecular Plant Pathology, 81 pp. 1-12. DOI: https://doi.org/10.1016/j.pmpp.2012.11.002
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Details
- Authors
- Kiirika, Leonard Muriithi; Stahl, Frank; Wydra, Kerstin
- Abstract
- Silicon (Si) and chitosan (Chi) treatments induced resistance in tomato against bacterial wilt caused by Ralstonia solanacearum. Gene expression analysis conducted at 72 h post inoculation via TOM2 microarray revealed regulation of 204 and 126 genes in genotypes King Kong 2 and L390, respectively, with their majority classified into the categories defense-related, signal transduction and transcription. In the microarrays, translationally-controlled tumor protein homolog involved in stress reaction of plants, the defense genes chitinases and peroxidases were highly up-regulated in combined Si and Chi treatment. Bacterial wilt incidence was reduced by 40% and 56.6% in Si and Chi treatment, respectively, in King Kong 2, and by 26.6% and 33.3% in Si and Chi treatment, respectively, in L390, and by 74.7% in King Kong 2 and 46.6% in L390 after combined application of Si and Chi. Evidence of their synergistic effects is reported. (C) 2012 Elsevier Ltd. All rights reserved.
- Issue Date
- 2013
- Status
- published
- Publisher
- Academic Press Ltd- Elsevier Science Ltd
- Journal
- Physiological and Molecular Plant Pathology
- ISSN
- 0885-5765