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TdERF1, an ethylene response factor associated with dehydration responses in durum wheat (Triticum turgidum L. subsp. durum)

Makhloufi, Emna and Yousfi, Fatma-Ezzahra and Pirrello, Julien and Bernadac, Anne and Ghorbel, Abdelwahed and Bouzayen, Mondher TdERF1, an ethylene response factor associated with dehydration responses in durum wheat (Triticum turgidum L. subsp. durum). (2015) Plant Signaling and Behavior, 10 (10). 1-4. ISSN 1559-2316

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Official URL: http://dx.doi.org/10.1080/15592324.2015.1065366

Abstract

Water deficit and increasing salinization reduce productivity of wheat, the leading crop for human diet. While the complete genome sequence of this crop has not been deciphered, a BAC library screening allowed the isolation of TdERF1, the first ethylene response factor gene from durum wheat. This gene is putatively involved in mediating salt stress tolerance and its characterization provides clues towards understanding the mechanisms underlyning the adaptation/tolerance of durum wheat to suboptimal growth conditions. TdERF1 expression is differentially induced by high salt treatment in two durum wheat varieties, the salt-tolerant Grecale (GR) and the salt-sensitive Om Rabiaa (OR). To further extend these findings, we show here that the expression of this ERF is correlated with physiological parameters, such as the accumulation of osmo-regulators and membrane integrity, that discriminate between the two contrasted wheat genotypes. The data confirm that GR and OR are two contrasted wheat genotypes with regard to salt-stress and show that TdERF1 is also induced by water stress with an expression pattern clearly discriminating between the twogenotypes. These findings suggest that TdERF1 might be involved in responses to salt and water stress providing a potential genetic marker discriminating between tolerant and sensitive wheat varieties.

Item Type:Article
Additional Information:Thanks to Taylor & Francis. The definitive version is available at http://www.tandfonline.com/doi/full/10.1080/15592324.2015.1065366
HAL Id:hal-01244794
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Other partners > Centre de Biotechnologie de Borj Cédria - CBBC (TUNISIA)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
French research institutions > Institut National de la Recherche Agronomique - INRA (FRANCE)
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Deposited On:16 Dec 2015 10:36

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