Ectopic expression of Arabidopsis H+-pyrophosphatase AVP1 enhances drought resistance in bottle gourd (Lagenaria siceraria Standl.)

Mehea Park, Jeungsul Han, Yeulkyun Ahn, Jeongho Kim, Hyeeun Lee, Yoonah Jang, Roberto Gaxiola, Kendal D. Hirschi, Sunghun Park

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Bottle gourd (Lagenaria sicerar ia Standl.) has been used as a source of rootstock for grafting watermelon to improve its fruit quality. We report here the development of a bottle gourd with resistance to drought by ectopic expression of the Arabidopsis AVP1 gene that encodes a vacuolar H+-pyrophosphatase. The drought resistance of AVP1-expressing and wild-type plants was assessed by growing plants under drought conditions. After 12 days of water deprivation, both AVP1-expressing and wild-type plants demonstrated reduced growth. After 10 days of re-watering, wild-type plants showed minimal growth while the AVP1-expressing plants resumed rapid growth. Further, AVP1-expressing plants displayed longer primary roots and more robust root systems than wild-type plants.

Original languageEnglish (US)
Pages (from-to)383-389
Number of pages7
JournalPlant Cell, Tissue and Organ Culture
Volume118
Issue number3
DOIs
StatePublished - Sep 2014

Keywords

  • Bottle gourd
  • Drought stress
  • Rootstock
  • Watermelon

ASJC Scopus subject areas

  • Horticulture

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