The effect of additional autopolyploidization in a slow growing cellulase hyperproducer of Trichoderma.
M14-2 is a cellulase hyperproducer derived from Trichderma reesei QM 6a, but with a growth rate lower than that of the original strain. When M14-2 was autopolyploidized followed by haploidization and selection, the strain with both a higher cellulase productivity per mycelia and a higher growth rate could be obtained as M14-2B. This strain seemed to be constructed using gene sources amplified by additional autopolyploidization.
Toyama
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Department of Food Science and Technology, Faculty of Horticulture, Minamikyushu University, Takanabe, Miyazaki, Japan. gaf00771@nifty.com
Toyama
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D002480:Cellulase / Q000096:biosynthesis*; D003470:Culture Media; D005821:Genetic Techniques; D011123:Polyploidy; D014242:Trichoderma / Q000201:enzymology* / Q000235:genetics* / Q000254:growth & development
D003470:Culture Media; D002480:Cellulase