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Table 5 Phosphate solubilization and organic acid production capability of soil fungal isolates

From: Multifarious functional traits of free-living rhizospheric fungi, with special reference to Aspergillus spp. isolated from North Indian soil, and their inoculation effect on plant growth

Isolates

Phosphate solubilization

Organic acid production

Colony diameter (mm)

Halo zone (mm)

Solubilization index (SI)

Colony diameter (mm)

Halo zone (mm)

Solubilization index (SI)

Aspergillus sp-01

10 ± 0.65

14 ± 0.78

2.40 ± 0.09

+

-

-

Aspergillus sp-02

19 ± 0.98

24 ± 1.0

2.26 ± 0.14

21 ± 1.2

25 ± 1.6

2.19 ± 0.12

Aspergillus sp-03

17 ± 0.74

22 ± 0.99

2.29 ± 0.16

+

-

-

Aspergillus sp-04

15 ± 0.68

18 ± 0.95

2.20 ± 0.10

+

-

-

Aspergillus sp-05

15 ± 0.71

17 ± 0.78

2.13 ± 0.08

+

-

-

Aspergillus sp-06

18 ± 0.89

21 ± 0.89

2.16 ± 0.07

24 ± 1.4

29 ± 1.8

2.20 ± 1.13

Aspergillus sp-07

26 ± 1.5

33 ±1.9

2.26 ± 0.15

23 ± 1.3

30 ± 2.0

2.30 ± 0.15

Aspergillus sp-10

+

-

-

14 ± 0.80

16 ± 0.86

2.14 ± 0.10

Aspergillus sp-16

20 ± 0.96

23 ± 1.2

2.15 ± 0.06

17 ± 0.89

19 ± 0.96

2.11 ± 0.09

Aspergillus sp-17

19 ± 0.86

21 ± 1.1

2.10 ± 0.08

18 ± 0.98

21 ± 0.99

2.16 ± 0.08

Alternaria sp-01

12 ± 0.9

16 ± 1.1

2.33 ± 0.13

18 ± 0.94

21 ± 0.96

2.16 ± 0.07

Alternaria sp-02

15 ±1.1

20 ± 1.7

2.33 ± 0.11

17 ± 0.82

23 ± 0.99

2.35 ± 0.12

Curvularia sp-02

19 ± 0.1.3

26 ± 2.0

2.36 ± 0.15

+

-

-

Curvularia sp-03

17 ±1.0

23 ± 1.5

2.35 ± 0.10

+

-

-

Curvularia sp-06

21 ±1.4

26 ± 1.8

2.23 ± 0.14

+

-

-

Fusarium sp-01

22 ±1.5

27 ± 1.6

2.22 ± 0.12

16 ± 0.85

20 ± 0.88

2.25 ± 0.06

Hormodendrum sp-01

25 ± 1.8

33 ± 2.1

2.32 ± 0.15

+

-

-

Microsporum sp-01

16 ±1.2

21 ± 1.3

2.31 ± 0.10

+

-

-

Monotospora sp-01

10 ± 0.8

14 ± 0.7

2.40 ± 0.16

24 ± 0.90

26 ± 1.3

1.66 ± 0.07

Mycelia Sterilia sp-01

+

-

-

15 ± 0.65

25 ± 1.1

2.66 ± 0.11

Mucor sp-01

14 ± 0.9

22 ± 1.5

2.57 ± 0.13

+

-

-

Penicillium sp-02

15 ± 0.8

23 ± 1.4

2.53 ± 0.13

+

-

-

Penicillium sp-03

13 ± 1.0

18 ± 1.1

2.38 ± 0.11

+

-

-

Rhizopus sp-02

14 ± 1.1

20 ± 1.3

2.42 ± 0.15

18 ± 0.78

22 ± 1.0

2.22 ± 0.08

Trichoderma sp-01

16 ± 1.2

20 ± 1.2

2.25 ± 0.15

26 ± 1.2

29 ± 1.5

2.11 ± 0.09

Trichophyton sp-01

24 ± 1.7

30 ± 2.0

2.25 ± 0.09

+

-

-

Trichophyton sp-02

23 ± 1.3

32 ± 2.3

2.34 ± 0.14

+

-

-

Trichothecium sp-01

+

-

-

15 ± 0.79

20 ± 0.96

2.33 ± 0.10

Verticillium sp-01

25 ± 1.5

30 ± 1.9

2.20 ± 0.10

17 ± 0.95

20 ± 0.98

2.17 ± 0.09

Unidentified sp-02

14 ± 0.8

21 ± 1.0

2.50 ± 0.08

29 ± 1.4

36 ± 2.0

2.24 ± 0.07

Unidentified sp-03

15 ± 0.7

21 ± 1.3

2.40 ± 0.07

13 ± 0.52

22 ± 1.4

2.69 ± 0.13

Unidentified sp-06

+

-

-

13 ± 0.55

15 ± 0.66

2.15 ± 0.09

Unidentified sp-07

+

-

-

18 ± 0.87

24 ± 0.98

2.33 ± 0.13

Unidentified sp-08

10 ± 0.6

16 ± 0.8

2.60 ± 0.15

14 ± 0.50

17 ± 0.78

2.21 ± 0.08

Unidentified sp-10

16 ± 1.0

23 ± 1.5

2.43 ± 0.13

+

-

-

Unidentified sp-13

+

-

-

25 ± 1.6

32 ± 2.1

2.28 ± 0.09

Unidentified sp-14

18 ± 1.2

24 ± 1.4

2.33 ± 0.11

+

-

-

  1. + indicates the presence of fungal growth
  2. - indicates no solubilization zone; ± indicates SD of three replicates