Table 4 Stability of gliotoxin in sterile soil.

From: Production, stability and degradation of Trichoderma gliotoxin in growth medium, irrigation water and agricultural soil

Days of incubation

Available gliotoxin in soil (µg/g of soil) (n = 3)*

Stability of gliotoxin (%) (n = 3)*

Wet condition

Semi dry condition

Dry condition

Wet condition

Semi dry condition

Dry condition

Acidic soil

Alkaline soil

Acidic soil

Alkaline soil

Acidic soil

Alkaline soil

Acidic soil

Alkaline soil

Acidic soil

Alkaline soil

Acidic soil

Alkaline soil

0

213.93**

212.75**

209.49**

207.51**

208.60**

210.72**

1

201.00a (6.05)

168.20b (21.03)

202.19a (3.99)

202.79a (2.50)

208.03a (0.04)

195.90a (7.15)

93.94b

78.96c

96.51ab

97.49ab

99.72a

92.84b

3

176.89ab (17.33)

147.44c (30.77)

177.99ab (15.04)

178.87a (14.00)

176.66ab (15.46)

160.35bc (24.00)

82.66ab

69.22c

84.96a

85.99a

84.69a

75.99bc

5

141.74a (33.76)

87.324b (59.00)

145.15a (30.71)

137.81a (33.74)

140.3a (32.83)

137.02a (35.05)

66.23a

40.99b

69.28a

66.25a

67.29a

64.94a

10

36.91c (82.75)

7.06d (96.68)

52.86b (74.77)

60.27ab (71.02)

59.47ab (71.54)

63.53a (69.88)

17.24 a

3.31b

25.23a

28.97a

28.51a

22.61a

  1. In each row, the mean values followed by a common letter or ** are not significantly different (p ≤ 0.05).
  2. Statistical analysis was carried out separately for available gliotoxin and stability of gliotoxin.
  3. Values in the parentheses are percent degradation of gliotoxin.
  4. *Values are means of three replications.