In Vitro Evaluation of Extracellular Enzyme Activity and Its Biocontrol Efficacy of Bacterial Isolates from Pepper Plants for the Management of Phytophthora capsici
Table 3
Extracellular enzymatic activities of different bacterial isolates.
Isolate no
HOST PLANT
Diameters of the clear zone (mm)
Strain
Plant tissue
Protease
Cellulase
Chitinase
Lipase
C
Distilled H2O
0cd
0bc
0b
0c
AAUSR1
Bacillus spp.
Pepper
Rhizosphere
0cd
ab
0b
a
AAUSR2
Bacillus thuringiensis
Pepper
Rhizosphere
0cd
ab
ab
b
AAUSR5
Achromobacter denitrificans
Pepper
Rhizosphere
0cd
bc
0b
0c
AAUSR6
Pseudomonas aeruginosa
Pepper
Rhizosphere
0cd
a
0b
0c
AAUSR7
Stenotrophomonas maltophilia
Pepper
Rhizosphere
bc
0bc
b
0c
AAUSR8
Comamonas testosteroni
Pepper
Rhizosphere
0cd
0bc
ab
0c
AAUSR9
Pseudomonas aeruginosa
Pepper
Rhizosphere
a
0bc
0b
0c
AAURE10
Pseudomonas aeruginosa
Pepper
Root
ab
0bc
0b
0c
AARE 11
Pantoea cheilomeans
Pepper
Root
a
0bc
0b
0c
AAURE13
Pseudomonas aeruginosa
Pepper
Root
0cd
0bc
0b
0c
AAUSE14
Pseudomonas oryzihabitans
Pepper
Stem
0cd
0bc
0b
0c
AASR15
Serratia marcescens
Pepper
Rhizosphere
0cd
0bc
0b
c
AAURE16
Pseudomonas fluorescens
Pepper
Root
bc
0bc
0b
abc
AAUFE17
Enterobacter xiangfangensis
Pepper
Fruit
0cd
abc
0b
0c
AAUSR19
Pseudomonas stutzeri
Pepper
Rhizosphere
ab
bc
a
abc
AAUSR20
Pseudomonas stutzeri
Pepper
Rhizosphere
0cd
c
a
abc
AAUSR21
Pseudomonas stutzeri
Pepper
Rhizosphere
0cd
0bc
a
abc
AAUSR22
Enterobacter asburiae
Pepper
Rhizosphere
0cd
0bc
0b
abc
AAUSR23
Enterobacter hormaechei
Pepper
Rhizosphere
c
a
0b
0c
AAUSR25
Pseudomonas putida
Pepper
Rhizosphere
0cd
0bc
0b
abc
AAUSR26
Pantoea spp.
Pepper
Rhizosphere
0cd
0bc
0b
ab
AAUSE27
Pseudomonas aeruginosa
Pepper
Stem
0cd
0bc
0b
AAURE30
Enterobacter hormaechei
Pepper
Rhizosphere
bc
0bc
0b
abc
AAUSE31
Enterobacter hormaechei
Pepper
Stem
0cd
0bc
a
bc
AAUSE34
Enterobacter hormaechei
Pepper
Stem
0cd
0bc
0b
bc
AAURE35
Enterobacter cloacae
Pepper
Root
0cd
0bc
0b
bc
AAULE41
Pseudomonas fluorescens
Pepper
Rhizosphere
a
c
0b
0c
AAUSR42
Enterobacter cloacae
Pepper
Rhizosphere
0cd
ab
a
0c
AAUFE43
Aeromonas hydrophila/caviae
Pepper
Rhizosphere
ab
0bc
17+ 2a
0c
AAUSE44
Rhizobium radiobacter
Pepper
Rhizosphere
0cd
0bc
b
0c
AAUSR46
Rhizobium radiobacter
Pepper
Rhizosphere
0cd
0bc
a
0c
AAUSR47
Aeromonas hydrophila
Pepper
Rhizosphere
0cd
ab
a
0c
AAUSR48
Enterobacter cloacae
Pepper
Rhizosphere
0cd
ab
0b
0c
AAUSR49
Serratia marcescens
Pepper
Rhizosphere
ab
0bc
a
0c
AAULE51
Undetermined
Pepper
Leaf
a
ab
a
0c
AAUSR52
Pseudomonas stutzeri
Pepper
Rhizosphere
0cd
a
a
0c
AAUSR56
Pseudomonas stutzeri
Pepper
Rhizosphere
0cd
0bc
0b
0c
AAUSR58
Undetermined
Pepper
Rhizosphere
0cd
0bc
a
AAUSR59
Undetermined
Pepper
Rhizosphere
0cd
0bc
0b
bc
: Control without bacterial inoculation. The identities of the bacterial isolates are available in Table 3. Different letters between lines denote that mean values are significantly different () by Tukey’s test, (SE) ().