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Table 5 Effect of different doses of gamma irradiation on the antibacterial activity (expressed as diameter of inhibition zone in mm) of A. sydowii AUMC14506 and A. flavus AUMC14507

From: Bioprospecting endophytic fungi for bioactive metabolites and use of irradiation to improve their bioactivities

Gamma irradiation dose

A. sydowii AUMC14506

A. flavus AUMC14507

(Gy)

E. coli

S. aureus

E. coli

S. aureus

0.00 (C)

18.33 ± 1.53c

16.33 ± 1.00c

17.33 ± 0.58c

15.67 ± 1.67c

250

20.67 ± 0.58c

18.67 ± 1.67c

19.33 ± 1.58c

19.67 ± 2.05c

500

25.33 ± 1.53b

25.67 ± 1.05b

25.00 ± 1.00b

26.33 ± 0.58b

1000

34.00 ± 1.00a

33.67 ± 2.56a

31.67 ± 2.05a

32.67 ± 2.57a

2000

12.33 ± 0.58d

11.00 ± 1.78d

12.00 ± 1.00d

11.33 ± 1.06d

4000

0.00e

0.00e

0.00e

0.00e

  1. Calculated mean is for triplicate measurements from two independent experiments ± SD, a−e means with different superscripts in the same column for each nanoparticle are considered statistically different (LSD test, P ≤ 0.05)