<p class=\"MsoNormal\" style=\"margin-bottom: .0001pt; line-height: 150%;\"><span style=\"font-size: 12.0pt; line-height: 150%; font-family: \'Times New Roman\',\'serif\'; mso-fareast-font-family: \'Times New Roman\'; color: #222222;\">Isolation and characterization of auxotrophic mutants of&nbsp;<em>Trichoderma harzianum&nbsp;</em>having<em>&nbsp;</em>improved bio-control activity</span></p>