1,3-ppGly	1,3-Diphosphoglycerate
3-pGly	3-Phosphoglycerate
4CL	4-coumarate:CoA ligase
AARS	Aminoacyl t-RNA synthetase
ABC transporter	ATP-binding cassette ABC transporter
AMP, pA	Adenosine 5′-monophosphate
Ap3A, ApppA	Diadenosine 5′,5′′′-P1,P3-triphosphate
Ap4A, AppppA	Diadenosine 5′,5′’’-P1,P4-tetraphosphate
Ap4C	P1-(5’-Adenosyl)-P4-(5’-cytidyl)-tetraphosphate
ApU	Adenosine-uridine monophosphate
APY1 and APY2	Apyrase 1 and 2
C4H	Cinnamate-4-hydroxylase
cAMP	Adenosine 3′,5′-cyclic monophosphate
CAMTA3	Calmodulin-binding transcription activator
CCR	Cinnamoyl-CoA:NADP oxidoreductase
cGMP	Guanosine 3′,5′-cyclic monophosphate
CHS	Chalcone synthase
Cp3C	Dicytosine 5′,5′′′-P1,P3-triphosphate
Cp4C	Dicytosine 5′,5′′′-P1,P4-tetraphosphate
DORN1	Does not Respond to Nucleotide
E	Enzyme
eATP	Extracellular ATP
eNAD+	Extracellular NAD+
eNADP+	Extracellular NADP+
Fhit	Fragile histidine triad
F-pA	Adenosine 5′-O-phosphorofluoridate
Gp3G	Diguanosine 5′,5′′′-P1,P3-triphosphate
Gp4G	Diguanosine 5′,5′′′-P1,P4-tetraphosphate
HIT	Histidine triad
ICS	Isochorismate synthase
ISR	Induced systemic resistance
JAR1	Jasmonate:amino acid synthetase
LecRK-1.9	L-type lectin receptor-like kinase 1.9
LysRS	Lysyl-tRNA synthetase
MAPK	Mitogen-activated protein kinases
MITF	Microphthalmia-associated transcription factor
MYC	Transcription factors
NAADP	Nicotinic acid adenine dinucleotide phosphate
NH2-pA	Adenosine 5′-phosphoramidate
NO	Nitric oxide
Non-AARS	Non-aminoacyl t-RNA synthetase
NpnN’	Dinucleoside polyphosphate
NTP, pppN	Nucleoside 5′-triphosphate
NUDT	Nudix hydrolase
Nudix	Nucleoside diphosphate linked to x (x: any moiety)
P2K1	P2 receptor kinase 1
P2X	Ligand-gated ion channel
P2Y	G protein-coupled receptor
P3, ppp	Triphosphate
P4, pppp	Tetraphosphate
p4A, ppppA	Adenosine 5′-tetraphosphate
p4C	Cytosine 5′-tetraphosphate
p4G	Guanosine 5′-tetraphosphate
p4U	Uridine 5′-tetraphosphate
p5A, pppppA	Adenosine 5′-pentaphosphate
PAL	Phenylalanine ammonia-lyase
PGP1	p-Glycoprotein 1
PM-ANT1	Plasma membrane-localized nucleotide transporters
pnN	Nucleoside 5′-polyphosphate
ppGpp	Guanosine 3′-diphosphate 5′-diphosphate
PPi	Pyrophosphate
(p)ppGpp	Guanosine 3′-diphosphate 5′-triphosphate
RBOHD	Respiratory burst oxidase homolog protein D
RNS	Reactive nitrogen species
ROS	Reactive oxygen species
SAR	Systemic acquired resistance
STS	Stilbene synthase
TF	Transcription factor
Up2U	Diuridine 5′,5′′′-P1,P2-diphosphate
UTP, pppU	Uridine 5′-triphosphate