Synthesis of extracellular (1 → 3)- and (1 → 6)-β-glucanase activities in carbon limiting chemostat culture by the fungus Acremonium sp IMI 383068

被引：5
|
作者：
Jayus [1 ]
Jumadi, O [1 ]
McDougall, BM [1 ]
Seviour, RJ [1 ]
机构：
[1] La Trobe Univ, Biotechnol Res Ctr, Bendigo, Vic 3552, Australia
来源：
ENZYME AND MICROBIAL TECHNOLOGY | 2005年 / 36卷 / 5-6期
关键词：
Acremonium sp; chemostat; hyphal growth unit; beta-glucanases;
D O I：
10.1016/j.enzmictec.2004.12.010
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
When Acremonium sp. IMI 383068 was grown under chemostat conditions with scleroglucan as sole carbon source, the fungus produced four (1 -> 3)-beta-glucanases and a single (1 -> 6)-beta-glucanase. Production of the (1 -> 3)-beta-glucanase was growth rate related while the (1 -> 6)-beta-glucanase was growth rate unrelated. Specific activities of both were affected by increasing agitation speed, independently of dissolved oxygen tension (DOT) or growth rates, falling at the higher speeds examined. They also increased as DOT levels increased. No evidence was obtained to substantiate any relationship between enzyme specific activities and hyphal branching frequencies. (c) 2004 Elsevier Inc. All rights reserved.
引用
收藏
页码：680 / 686
页数：7
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