Home > Archive>Volume 28, Issue 3, 2020 >285-291. DOI:10.11926/jtsb.4147
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Comparison of Thermo-sensitivity among Six Mutants of Arabidopsis thaliana
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Shandong Normal University

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The National Natural Science Foundation of China (Grant No. 31270298)

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    Abstract:

    In order to understand the thermo-sensitivity of heat sensitive mutants of Arabidopsis thaliana, the thermo-sensitivities were compared among six mutants, including hsp70-15, apx2, hop1-2-3, hsfa7a, fes1a and hot1. The results showed that the thermo-sensitivities of six mutants were higher than that of WT, but there were significant difference among them. The 8-day-old seedlings were adapted at 38℃ for 2 h at first, then they were under heat stress at 45℃. Seedlings of mutant hot1 showed albinism with high mortality under 45℃ for 90 min. Seedlings of mutant fes1a also suffered high death rate under 45℃ for 105 min. Further, seedlings of mutants apx2, hsfa7a and hop1-2-3 showed almost identical injury phenomenon under 45℃ for 135 min, their heat injury were more severe than that of mutant hsp70-15. Therefore, the thermo-sensitivities of six mutants were in the order of hot1>fes1a>apx2, hsfa7a and hop1-2-3>hsp70-15.

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陈梦雪,葛晶晶,刘箭.6种拟南芥突变体热敏感性差异的比较分析[J].热带亚热带植物学报,2020,28(3):285~291

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History
  • Received:September 07,2019
  • Revised:January 10,2020
  • Adopted:January 13,2020
  • Online: June 29,2020
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