Polygalacturonase, biomass and ascospore production by Byssochlamys fulva. II. Effects of sugars found in fruits

✍ Scribed by Stephen L. Rice; Larry R. Beuchat

• Book ID: 104774945
• Publisher: Springer Netherlands
• Year: 1978
• Tongue: English
• Weight: 421 KB
• Volume: 63
• Category: Article
• ISSN: 0301-486X
• DOI: 10.1007/bf00441253

✦ Synopsis

Polygalacturonase, biomass, and ascospore production by four strains of Byssochlamys fulva cultured in laboratory media supplemented with glucose, sucrose, or fructose was studied over a 20-day incubation period at 30 degrees C. The production of polygalacturonase was variable, but most activity was detected between 4 and 8 days in 1% sugar media at an initial pH of 4 or 5. The rate of biomass production was retarded early in the incubation period in media initially at pH 3 or 4 as compared to pH 5, but the amount of growth was about the same in media containing the test sugars after 20 days. Large numbers of ascospores were produced between 8 and 10 days in media containing 5% sugar initially at pH 5 and 4. Production of ascospores was retarded at pH 3 in media containing 5% sugar as compared to media initially at pH 5 and 4.