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ACTA HORTICULTURAE SINICA ›› 2004, Vol. 31 ›› Issue (6): 820-821.

• 研究报告 • Previous Articles     Next Articles

Effect of Heat Stress on Chloroplast Ultrastructure Changes in Mesophyll Cell of Tomato

Wang Dongmei1; Xu Xiangyang1; Li Jingfu1* ;Cui Lin2
  

  1. (1 Horticulture College of Northeast Agriculture University , Harbin 150030 , China ; 2 Electron Microscope Laboratory of Northeast Agriculture University , Harbin 150030 , China)
  • Received:2003-11-02 Revised:2004-09-20 Online:2004-12-25 Published:2004-12-25

Abstract: Chloroplast ultrastructures changes in mesophyll cells in response to heat stress in thermo-resistant (02276) and thermo-sensitive (L402) cultivars of tomato were investigated. Heat stress damaged the regular ultrastructure of the envelopes and thylakoid systemof chloroplasts in mesophyll cells of tomato. There existed significant differences in the effects of heat stress on chloroplast structure between thermo-resistant and thermo-sensitive cultivars. The changes of chloroplast ultrasture under heat stress could be used as an important index to appraise the heat-tolerablity at the cellular level .

Key words: Tomato, Heat stress, Chloroplast, Ultrastructure

CLC Number: