Northern blot analysis of transcripts of <i>cel5A</i> (A), <i>cel44O</i> (B), <i>cel5I</i> (C) and <i>cel5D</i> (D).

<p>Total RNAs purified from cells grown on cellulose-containing medium (ten micrograms in A, B, C and 40 micrograms in D) were separated by denaturing electrophoresis, transferred to nylon membrane and hybridized with gene-specific radioactive riboprobes.