Table I.

pMtENOD11-gusA induction

	Percentage of MtENOD11-Expressing Roots
	Secondary lateral roots	Tertiary lateral roots
−AM	0 ± 0 a	5 ± 2 a
+AM	7 ± 2 b	25 ± 4 b

Percentage of Ri T-DNA-transformed roots of M. truncatula expressing pMtENOD11-gusA after 10 d of membrane-separated coculture with G. rosea (+AM) and without (−AM). Roots were counted in the “corridor” of dense fungal growth and hyphal ramifications. Values listed are means ± se. Data presented are from a single representative experiment. Similar results were obtained in at least five independent experiments. Data in each column followed by a different letter (a or b) are significantly different according to Student's t test (P < 0.05, n = 12).