Inhibition of putrescine biosynthesis enhanced salt stress sensitivity and decreased spermidine content in rice seedlings
作者: A. YamamotoI.-S. ShimS. Fujihara
作者单位: 1University of Tsukuba
2University of Miyazaki
3University of Seoul
4National Agriculture Research Center
刊名: Biologia Plantarum, 2017, Vol.61 (2), pp.385-388
来源数据库: Springer Nature Journal
DOI: 10.1007/s10535-016-0676-5
关键词: Arginine decarboxylaseChlorophyll fluorescenceOrnithine decarboxylasePolyaminesSpermine
英文摘要: The effect of polyamine biosynthesis inhibitors on the salt stress response of rice seedlings was investigated. For this, DL-α-difluoromethylarginine (DFMA) and DL-α-difluoromethylornithine (DFMO), two competitive inhibitors of arginine decarboxylase (ADC) and ornithine decarboxylase (ODC), were used. The ADC and ODC are rate-limiting enzymes involved in synthesis of putrescine. The effective quantum yield of photosynthetic energy conversion (ΦPSII) decreased with the salt stress, and this decrease was highly significant in the treatments with DFMA and DFMO. Interestingly, addition of exogenous putrescine reduced the decline of ΦPSII. Putrescine content strongly decreased after one day of the inhibitor treatment. Although the content of spermidine (converted from...
原始语种摘要: The effect of polyamine biosynthesis inhibitors on the salt stress response of rice seedlings was investigated. For this, DL-α-difluoromethylarginine (DFMA) and DL-α-difluoromethylornithine (DFMO), two competitive inhibitors of arginine decarboxylase (ADC) and ornithine decarboxylase (ODC), were used. The ADC and ODC are rate-limiting enzymes involved in synthesis of putrescine. The effective quantum yield of photosynthetic energy conversion (ΦPSII) decreased with the salt stress, and this decrease was highly significant in the treatments with DFMA and DFMO. Interestingly, addition of exogenous putrescine reduced the decline of ΦPSII. Putrescine content strongly decreased after one day of the inhibitor treatment. Although the content of spermidine (converted from...
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影响因子:1.692 (2012)

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关键词翻译
关键词翻译
  • spermidine 精脒
  • putrescine 腐胺
  • stress 应力
  • biosynthesis 生物合成
  • polyamine 多聚胺
  • content 品位
  • spermine 精胺
  • decarboxylase 脱羧酶
  • photosynthetic 光合的
  • inhibitor 抑制剂