Table 1.

Homeodomain deletions in the bE1-k-W2 fusion

Plasmid	Independent transformants in U. maydis (a2Δb)	Pathogenicity symptoms*		Filamentous growth†
		Strong	Weak
pbE1ΔHD-k-W2	20	0	0	3
pbE1-k-W2ΔHD	23	0	0	3
pE1ΔHD-k-W2ΔHD	15	0	0	2

^*Strong and weak pathogenicity symptoms scored as tumor formation and anthocyanin synthesis, respectively, were assayed as described. 

^†Filamentous growth was assayed by spotting cultures of the respective transformant on charcoal plates (see Material and Methods).