Environmentally sensitive, SA-dependent defense responses in the cpr22 mutant of Arabidopsis.

  title={Environmentally sensitive, SA-dependent defense responses in the cpr22 mutant of Arabidopsis.},
  author={Keiko Yoshioka and Pradeep Kachroo and Frank Tsui and Shashi B. Sharma and Jyoti Shah and Daniel F Klessig},
  journal={The Plant journal : for cell and molecular biology},
  volume={26 4},
To investigate the signaling pathways through which defense responses are activated following pathogen infection, we have isolated and characterized the cpr22 mutant. This plant carries a semidominant, conditional lethal mutation that confers constitutive expression of the pathogenesis-related (PR) genes PR-1, PR-2, PR-5 and the defensin gene PDF1.2. cpr22 plants also display spontaneous lesion formation, elevated levels of salicylic acid (SA) and heightened resistance to Peronospora parasitica… CONTINUE READING


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A revised medium for growth and bioassays with tobacco culture

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