Diversity, Biocontrol, and Plant Growth Promoting Abilities of Xylem Residing Bacteria from Solanaceous Crops

Table 1

Overview of diversity and functionality of XRB obtained from eggplant, chilli, and S. torvum.

Plant host	Number of samples	Total isolates obtained	Gram-negative	Gram-positive	Haplotypes^a obtained	Antagonistic strains^b	Antagonistic strains with BCE > 25%	Biocontrol strains with GPE > 10%	Method of isolation
BW susceptible eggplant	24	89	53	36	31	16	5	2	VI or M
BW resistant eggplant	12	36	20	16	17	6	6	5	VI or M
Chilli (Capsicum annuum)	7	33	20	13	19	3	2	1	M only
Solanum torvum	2	9	6	3	7	3	3	1	VI only
Total	45	167	99	68		28	16	9

aHaplotypes were determined using ARDRA.
^bAntagonism to R. solanacearum tested in vitro as described in Section 2.
BCE (biocontrol efficacy) and GPE (growth promotion efficacy) were determined under greenhouse conditions in eggplant as described in Section 2.
VI: Vacuum infiltration, M: maceration.