Purification and characterization of two xylanases from alkalophilic Cephalosporium sp. strain RYM-202
Article Abstract:
The two xylanases, CX-I and CX-II, from alkalophilic fungus, Cephalosporium sp. strain RYM-202, have homogeneous characteristics and optimal pHs and optimal temperature. The pH for CX-I is 7.5 and for CX-II is 8.0, and their temperature is 50 degree centigrade. Both enzymes are cellulase-free endoxylanases with transglycosidation activity. They remain stable over 5.5 to 12.0 pHs and exhibit high affinities for less-branched xylans. The xylanases contain similar amino acid compositions with relatively high levels of Gly, Asx and Glx, and little Met.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1996
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Morphological and molecular identification of Trichoderma isolates on North American mushroom farms
Article Abstract:
A total of 160 isolates of Trichoderma from mushroom farms across North America were analyzed to determine their morphological, cultural, and molecular characteristics and to classify them into phenotypic groups. Results revealed that the most common group constituted 40% of the isolates and was identified as a strain of Trichoderma harzianum which causes green mold disease. The strain demonstrated very similar randomly amplified polymorphic DNA patterns as those found in Ireland and the UK.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1998
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