Explants were treated for 4 weeks in each experimental condition.
The culture medium was replaced once a week and the
weight of explants was recorded. The daily growth rate of G. changii
was determined according to Yong et al. (2013b) using formula
GR = [(Wt/W0)1/t –1] × 100% where W0 is the initial fresh weight,
andWt is the final fresh weight of the explants after t days of culture.
One-way analysis of variance (ANOVA) was conducted for each
treatment group in order to verify if the differences between the
control and treated samples were statistically significant. The statistical
analyses were performed using statistical package software
SPSS version 16, (SPSS, Chicago, IL).