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Ethylene-Insensitive Arabidopsis Mutants etr1-1 and ein2-1 Have a Decreased Freezing Tolerance

  • BIOCHEMISTRY, BIOPHYSICS, AND MOLECULAR BIOLOGY
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Abstract

The freezing tolerance of Arabidopsis thaliana (L.) Heynh. was studied in relation to functioning of the ethylene signaling pathway. Constitutive freezing tolerance was compared in wild-type plants (ecotype Col-0) and ethylene-insensitive mutants etr1-1 and ein2-1. For the first time it was established that the ethylene-insensitive mutants had a 25–30% lower net photosynthesis rate, a decreased content of soluble sugars, and, as a result, a lower freezing tolerance. Our work provides evidence that the perception and transduction of ethylene signal are necessary for constitutive tolerance of Arabidopsis to low temperature.

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Authors and Affiliations

  1. Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, ul. Botanicheskaya 35, 127276, Moscow, Russia

    V. N. Popov, A. N. Deryabin, N. V. Astakhova, O. V. Antipina, T. A. Suvorova, G. P. Alieva & I. E. Moshkov

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  1. V. N. Popov
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  2. A. N. Deryabin
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  3. N. V. Astakhova
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  4. O. V. Antipina
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  5. T. A. Suvorova
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  6. G. P. Alieva
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  7. I. E. Moshkov
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Correspondence to V. N. Popov.

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The authors declare that they have no conflict of interest. This article does not contain any studies involving animals or human participants performed by any of the authors.

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Translated by M. Batrukova

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Popov, V.N., Deryabin, A.N., Astakhova, N.V. et al. Ethylene-Insensitive Arabidopsis Mutants etr1-1 and ein2-1 Have a Decreased Freezing Tolerance. Dokl Biochem Biophys 487, 269–271 (2019). https://doi.org/10.1134/S1607672919040069

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  • DOI: https://doi.org/10.1134/S1607672919040069

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