Characterization of FaSPT, a SPATULA gene encoding a bHLH transcriptional factor from the non-climacteric strawberry fruit

Viktória Tisza, László Kovács, Andrea Balogh, László Heszky, Erzsébet Kiss

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The involvement of basic-helix-loop-helix (bHLH) transcription factors in essential physiological and developmental processes is well established. Although a lot of animal bHLH proteins were characterized functionally, much less bHLHs of plant origin have been studied so far. Using a cDNA-AFLP approach, a ripening-related SPATULA gene was identified from strawberry fruit (Fragaria× ananassa Duch.), which encodes a bHLH protein. It is an orthologue of an Arabidopsis SPATULA protein, which has an important role in carpel and fruit development. Our experiments revealed that FaSPT is repressed by auxin in green fruits, and shows different expression patterns in receptacles at various stages of fruit ripening by ethylene treatment. Moreover, we applied a reverse genetic tool to elucidate the in planta function of FaSPT in early fruit development. To our knowledge, this work is the first report for the characterization of a SPATULA gene from a non-climacteric fruit.

Original languageEnglish
Pages (from-to)822-826
Number of pages5
JournalPlant Physiology and Biochemistry
Volume48
Issue number10-11
DOIs
Publication statusPublished - Oct 1 2010

Keywords

  • BHLH
  • Non-climacteric ripening
  • SPATULA
  • Strawberry

ASJC Scopus subject areas

  • Physiology
  • Genetics
  • Plant Science

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