Influence of transgenic and non-transgenic cottonseeds on the peroxidase isozymes of Pleurotus ostreatus

There were differences of peroxidase isozyme patterns between the tissues of Pleurotus ostreatus cultured with non-transgenic cottonseeds and transgenic cottonseeds, but differences also existed among the tissue of P. ostreatus cultured with different varieties and amount of cottonseeds, and among the tissue from varieties of P. ostreatus. Differences of peroxidase isozyme between tissues cultured with non-transgenic cottonseeds and those cultured with transgenic cottonseeds were similar to the differences between tissues cultured with different varieties and amounts of cottonseed, and not larger than the differences between the tissues from different varieties of P. ostreatus. The results suggest that the effect of transgenic cottonseed on the peroxidase isozyme of P. ostreatus were not larger than the effects of different varieties of cottonseed and different varieties of P. ostreatus.