Table 1.
ATP, Ca2+, NO and protein kinase antagonists employed in the experiments and their putative functions in plant cells
| Targeted responses | Chemical name (abbreviation): function |
| Perception of extracellular ATP signal | Reactive blue (RB) and suramin: inhibitors of plasma membrane purinoceptors |
| Ca2+ influx through membrane | 1,2-bis(2-amino-5-bromophenoxy)ethane-N,N,N′,N′-tetra-acetic acid (EGTA): Ca2+ chelator; verapamil: Ca2+ channel blocker |
| NO production and release | L-ω-nitro-Arg-methyl-ester (L-NAME) and S,S’-1,3-phenylene-bis(1,2-ethanediyl)-bis-isothiourea (PBITU): NOS inhibitor; sodium azide (SoA): NR inhibitor; 2-phenyl-4,4,5,5-tetramethyl-imidazoline-1-oxyl-3-oxide (PTIO): NO scavenger |
| Protein phosphorylation | Staurosporine (ST): protein kinase inhibitor |
| Calmodulin (CaM) activation | N-(6-aminohexyl)-5-chloro-1-naphthalenesulphonamide (W-7) and trifluoperazine (TRF): CaM Inhibitor |