Table 1. Bacterial strains used in this study.

Strain designation	Source of isolation, geographic origin	Culture media and growth conditions	Reference
Bacillus velezensis MBY2	Z. album Kerkennah, Tunisa	LBA: Peptone 10 g/l, yeast extract 5 g/l, NaCl 5 g/l, pH = 7.2 at 28°C	this study
Agrobacterium fabrum C58	America	YPG: Yeast extract 5g/l; peptone 5g/l; glucose 10g/l; pH = 7.2 at 28°C
Agrobacterium fabrum C58Gmr			[20]
Agrobacterium radiobacter K84	Australia
Agrobacterium radiobacter K1026			[13]