A rapid and efficient method for growth measurement of filamentous fungi

Growth of filamentous fungi may be measured very efficiently using 96 well microtiter plates and a microplate reader. The relationship between Absorbance reading at 630 nm and dry weight is linear. This relationship seems to be similar for different fungi with a slope of about 4.2 mg/ml dry weight per Absorbance unit. The 8 wells in each column were used as parallels.