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Table 1 Taxonomic identity and physiological traits of selected hot pepper rhizosphere-associated bacteria

From: Characterization and identification of hot pepper-associated endospore-forming bacteria with potential applications as biofertilizers and in biocontrol of pepper wilt pathogens

Identity of rhizobacteria

PGPR traits

Isolates

Taxonomic status

PSI

CI

IAA(µg / ml)

HCN

JUBC1

Bacillus siamensis

3.3

1.5

38.39

 + 

JUBC5

Paenibacillus polymyxa

2.8

1.8

49.13

 + 

JUBC6

B. siamensis

3.2

3.0

36.21

 + 

JUBC7

B. cereus

4.2

7.5

39.91

 + + + 

JUBC8

B. velezensis

3.0

4.5

48.15

 + 

JUBC11

P. polymyxa

5.7

3.5

59.16

 + 

JUBC12

B. siamensis

3.4

6.3

36.26

 + + 

JUBC13

B. siamensis

3.0

5.3

34.33

 + 

JUBC14

B. siamensis

3.1

2

27.31

-

JUBC16

B. siamensis

3.8

3.5

36.50

-

JUBC17

B. velezensis

4.0

1

34.56

 + 

JUBC18

B. siamensis

3.3

2.5

49.91

 + 

JUBC19

B. cereus

3.3

3.5

36.11

 + + 

JUBC20

B. siamensis

4.0

1.0

32.60

-

JUBC24

B. cereus

10.0

0.7

36.86

 + + 

JUBC25

B. velezensis

4.0

0.6

35.32

 + 

JUBC26

B. velezensis

5.0

0.8

36.08

 + 

JUBC27

B. velezensis

3.1

1.2

36.84

 + + 

JUBC28

B. siamensis

2.8

1.5

37.47

 + 

JUBC32

B. velezensis

3.0

1.5

35.33

 + 

JUBC33

P. polymyxa

3.0

1.0

31.73

 + + 

  1. Data are only shown for the 21 bacterial isolates with the highest PSI values
  2. The symbols -, + , + + , and + + + denote no, weak, moderate, and strong hydrogen cyanide production, respectively
  3. JU Jimma University, PSI phosphate solubilization index, CI Chitinolytic index, IAA Indole acetic acid, HCN Hydrogen cyanide