Electronic Journal of Biotechnology ISSN: 0717-3458
  © 2007 by Universidad Católica de Valparaíso -- Chile
Vol. 10 No. 4, Issue of October 15, 2007

Figure 1. Protoplasts or spheroplasts obtained from Trichoderma harzianum by means of enzymatic action and STC buffer suspension of the native strains Th11 (a) and Th291 (b). Similar results were obtained for Th12 and Th650 (data not shown).