Fig. 1.

Screening of 90 morphological mutants in Neurospora crassa. Conidia from the wild type (WT) and morphological mutants were separately inoculated into Avicel medium and batch cultured for 7 days. The viscosities of culture broths altered by more than 50% compared with the WT are indicated as follows: blue dots, high-viscosity mutants; red dots, low-viscosity mutants