Ectopic Expression of StERF94 Transcription Factor in Potato Plants Improved Resistance to Fusarium solani Infection
ERF proteins (ethylene-responsive factors), which belong to the AP2/ERF superfamily, play essential roles in plant development, growth, and response to abiotic and biotic constraints. In a previous study, we cloned a cDNA encoding the StERF94 factor from potato plants and the phylogenetic analyses s...
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Veröffentlicht in: | Plant molecular biology reporter 2019-12, Vol.37 (5-6), p.450-463 |
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Sprache: | eng |
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Zusammenfassung: | ERF proteins (ethylene-responsive factors), which belong to the AP2/ERF superfamily, play essential roles in plant development, growth, and response to abiotic and biotic constraints. In a previous study, we cloned a cDNA encoding the
StERF94
factor from potato plants and the phylogenetic analyses showed that it belongs to group IX of the ERF family. Genes of this group are known to be involved in plant response to biotic stress. The
StERF94
cDNA was overexpressed in transgenic potato plants and the resulting transgenic plants showed a high tolerance to salinity. In this study, we investigated the response of
StERF94
transgenic plants to biotic stress by evaluating their resistance to
Fusarium solani
infection. A significant enhanced resistance to the fungus was noticed in the transgenic plants which displayed limited malondialdehyde and H
2
O
2
production and increasing antioxidant enzyme activities. Our findings also revealed that overexpression of
StERF94
in potato enhanced expression of relevant defense genes like those encoding PR proteins (pathogenesis related) which led to a protection against disease propagation and reduction of fungus development in plant tissues. |
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ISSN: | 0735-9640 1572-9818 |
DOI: | 10.1007/s11105-019-01171-4 |