Abstract: Provided are methods and compositions useful for producing filamentous fungal cells and compounds produced by such cells that have utility in a variety of applications. In one aspect, provided herein is a method for producing a SLR from a filamentous fungal cell, wherein the method comprises the steps of: a) growing the filamentous fungal cell in a first medium comprising a first carbon source to obtain an actively growing mycelial culture, and b) replacing the first medium of the actively growing mycelial culture with a second medium comprising a second carbon source to induce production of the SLR; wherein the first carbon source comprises a metabolizable carbon compound, wherein the second carbon source comprises only non-metabolizable carbon compounds, and wherein the second medium comprises no other carbon source than the second carbon source.