Virus and Fungal Resistance: From Laboratory to Field

Virus and fungal resistance traits are important targets in the genetic engineering of agricultural and horticultural crops. We have engineered resistance against potato virus X in important commercial potato cultivars. Four years of field trials with resistant potatoes have demonstrated the commerc...

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Bibliographic Details
Published in:Philosophical transactions of the Royal Society of London. Series B. Biological sciences 1993-11, Vol.342 (1301), p.271-278
Main Authors: Peter J. M. Van Den Elzen, Jongedijk, Erik, Melchers, Leo S., Ben J. C. Cornelissen
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Antifungals
Biological and medical sciences
Biotechnology
Crops
Disease resistance
Fundamental and applied biological sciences. Psychology
Fungi
Fusarium
Genetic engineering
Genetic technics
Genetics and breeding of economic plants
Infections
Methods. Procedures. Technologies
Pathogens
Pest resistance
Plant pathogens
Plants
Transgenic animals and transgenic plants
Transgenic plants
Varietal selection. Specialized plant breeding, plant breeding aims
Viruses
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Summary:Virus and fungal resistance traits are important targets in the genetic engineering of agricultural and horticultural crops. We have engineered resistance against potato virus X in important commercial potato cultivars. Four years of field trials with resistant potatoes have demonstrated the commercial feasibility of improving potato cultivars by selectively adding new traits while preserving intrinsic properties. In our pursuit for a broad resistance against fungi we have focused on the exploitation of genes encoding antifungal proteins. We present results demonstrating the antifungal effect of some of these proteins in vitro, as well as the synergy between specific chitinases and $\beta $-1,3-glucanases. We also report high level resistance against Fusarium oxysporum in transgenic tomato plants expressing a specific combination of genes encoding these enzymes.
ISSN:0962-8436
1471-2970
DOI:10.1098/rstb.1993.0157