Particular interest has been given to Trichoderma
harzianum T22, an effective strain characterized by good
rhizosphere competence and the ability to colonize plant roots in
different types of soil and pH (Harman and Bjorkman, 1998 € ), to
promote plant growth (Akladious and Abbas, 2014) and to stimulate
systemic defense responses in maize (Harman et al., 2004a;
Morris et al., 1998)