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      The mechanisms of desiccation tolerance in developing seeds

      , ,
      Seed Science Research
      Cambridge University Press (CUP)

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          Common amino acid sequence domains among the LEA proteins of higher plants.

          LEA proteins are late embryogenesis abundant in the seeds of many higher plants and are probably universal in occurrence in plant seeds. LEA mRNAs and proteins can be induced to appear at other stages in the plant's life by desiccation stress and/or treatment with the plant hormone abscisic acid (ABA). A role in protecting plant structures during water loss is likely for these proteins, with ABA functioning in the stress transduction process. Presented here are conserved tracts of amino acid sequence among LEA proteins from several species that may represent domains functionally important in desiccation protection. Curiously, an 11 amino acid sequence motif is found tandemly repeated in a group of LEA proteins of vastly different sizes. Analysis of this motif suggests that it exists as an amphiphilic α helix which may serve as the basis for higher order structure.
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            Stabilization of dry phospholipid bilayers and proteins by sugars.

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              Physiological Aspects of Desiccation Tolerance

              J D Bewley (1979)
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                Author and article information

                Journal
                applab
                Seed Science Research
                SSR
                Cambridge University Press (CUP)
                0960-2585
                1475-2735
                December 1993
                September 2008
                : 3
                : 04
                Article
                10.1017/S0960258500001859
                cf8f8a3b-57da-4454-bb1a-da0f40a9ad53
                © 1993
                History

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