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ACTA HORTICULTURAE SINICA ›› 2004, Vol. 31 ›› Issue (1): 16-20.

• 研究论文 • Previous Articles     Next Articles

Accumulation of Jasmonic Acid in Apple Seedlings under Water Stress

Lan Yanping; Han Zhenhai*; Xu Xuefeng   

  1. ( Institute of Horticultural Plants, China Agricultural University, Beijing 100094, China)
  • Received:2003-03-10 Revised:2003-07-08 Online:2004-02-25 Published:2004-02-25

Abstract: Two apple species with different drought resistance were exposed to a polyethylene glycol-induced water deficit . The concentration of jasmonic acid (JA) in roots , leaves and xylem sap were measured by gas chromatograph. Sensitive increases of JA in roots , leaves or xylem sap were showed in two species. A significant logarithm correlation existed between leaf stomatal resistance and concentration of JA in xylem sap or roots. This suggest that JA in xylem sap may be the signal responsible for communication between roots and shoots in apple trees under water stress.

Key words: Malus, Water stress, Malus sieversii, Malus hupehensis, Jasmonic acid

CLC Number: