Functional analysis of <i>TRI17</i> in <i>Trichoderma arundinaceum</i>.

<p>(<b>A</b>) Quantitation of harzianum A production in the wild-type strain Ta37, <i>tri17</i> mutant strain tri17.139, and three tri17.139-derived strains (tri17.C1, tri17.C4 and tri17.C10) that were complemented with a wild-type copy of <i>T</i>. <i>arundinaceum TRI17</i>. (<b>B</b> and <b>C</b>) Total ion chromatograms of culture extracts of (<b>B</b>) wild-type progenitor strain Ta37 and (<b>C</b>) <i>tri17</i> deletion mutant tri17.139. The trichothecene biosynthetic intermediate trichodermol (4-hydroxy EPT) is indicated at 5.268 min. 4OH indicates trichodermol (4-hydroxy EPT).