The results obtained in this study revealed that starch
content increased in both shoots and roots of maize
plants treated with T. harzianum strain T22. Increased
photosynthesis should have resulted in increased starch
accumulation in seedlings (Michal and Gary, 2008).
Shoots of Trichoderma-treated plants had higher starch
contents. All of these data are consistent with the concept
that in the presence of T. harzianum strain T22, energy
metabolism via glycolysis and the tricarboxylic acid cycle
is up-regulated. Trichoderma interaction with plant roots
results in controlled activation of carbohydrate metabolic
processes as well as enhancement of photosynthesis
(Duncan et al., 2006). T. harzianum strain T22 on roots
up-regulated maize proteins, the largest number of upregulated
proteins were involved in carbohydrate