Table 1.

Grafting success (expressed as percentage of all grafts performed) between pea (Pisum sativum L.) plant hormone mutants and the parental wild-type line

			Graft type (scion/rootstock)
Hormone	Gene	Action	WT/WT	Mutant/Mutant	Mutant/WT	WT/Mutant	n
Gibberellin biosynthesis	NA	ent-Kaurenoic acid oxidase	67 %	88 %	63 %	67 %	24
	LE	Gibberellin 3-oxidase	67 %	58 %	67 %	42 %	12
	LH	ent-Kaurene oxidase	71 %	83 %	56 %	75 %	*
Brassinosteroid biosynthesis	LK	Steroidal 5α-reductase	60 %	40 %	40 %	73 %	15
Strigolactone biosynthesis	CCD8	Carotenoid cleavage dioxygenase 8	44 %	50 %	38 %	38 %	16
Strigolactone response	MAX2	F-box protein	45 %	35 %	50 %	45 %	20
Ethylene response	EIN2	N-RAMP metal transporter-like protein	63 %	44 %	57 %	nd	†
Auxin response	RMS2	Putative auxin receptor AFDB4/5	40 %	50 %	35 %	45 %	20
Auxin deficient	BSH	Unknown	93 %	93 %	93 %	80 %	15

Successful grafts are defined as those in which the scion developed through to flowering with active growth of the main stem. Results are mostly from epicotyl/epicotyl grafts, but in some instances involved leafy shoots and are aggregated across more than one experiment. The number of grafts attempted is shown (n). No significant differences in grafting success were observed between graft types for any mutant when tested by contingency χ². The results are from grafts done over many years including those done for other purposes reported in Reid et al. (1983), Reid and Ross (1989), Beveridge et al. (1996) and Symons et al. (1999) and unpublished results for ein2.

*n = 24 grafts for the self-grafts and 12 for the Mutant/WT and WT/Mutant grafts.

^† n = 24 grafts for WT/WT, 16 for Mutant/Mutant and 28 for Mutant/WT.

nd = not done.