Table 6.

Effect of the RYR Antagonist Ruthenium Red on MtENOD12 Induction

ElicitorEffectorConcentration (μM)% GUS-Staining Plants
NodRma100
(10−9 M)Ruthenium red293b
1012c
500
CAd1010c
+15 mine1050b
+ 60 mine10100
Mastoparana93
(10−6 M)Ruthenium red105c
  • a Control experiment in the absence of effector.

  • b Clearly reduced response.

  • c Very weak response.

  • d CA, concomitant addition of elicitor and effector.

  • e Timing of effector addition with respect to elicitor.