通过不同的细菌和真菌共同培养物降解纤维素
Julian Detain1, Ludovic Besaury1
1Université de Reims Champagne Ardennes, INRAE, FARE, UMR A 614, Chaire AFERE, 51097 Reims, France.
Current research in microbial sciences
|September 18, 2024
概括
菌类和细菌的域间共同培养增强了菌纤维素的降解. 在Trichoderma reesei QM6a/Streptomyces coelicolor A3(2) 配对中显示出显著的协同作用的西兰酶和过氧化酶活动,证明了共培的可行性.
科学领域:
- 生物技术是生物技术.
- 微生物学 微生物学
- 生物炼油工艺是生物炼油工艺的过程.
背景情况:
- 农业副产品越来越多地被用于生物炼油厂.
- 共同培养是一种新兴的策略,以改善纤维素蛋白降解和生物产品的产生.
研究的目的:
- 建立具有增强基纤维素降解能力的跨领域共同培养.
- 为了研究真菌和细菌菌株之间的协同作用.
主要方法:
- 使用了多学科的方法:生物信息学,酶学和转录学.
- 测试的个体菌株 (Trichoderma reesei QM6a,Streptomyces coelicolor A3(2),Rhizobium sp.XylPr11,Sphingobacterium prati AraPr2) 以及它们的共同培养.
- 量化酶活性 (氧化酶,过氧化酶) 和分析基质变化 (ATR-FTIR).
主要成果:
- 在共同培养中观察到协同效应,特别是增加了西兰酶和过氧化酶活动.
- 在T. reesei QM6a/S. 色素A3(2) 共同培养实现了高酶水平 (2 IU/mL西兰酶,430 IU/mL过氧化酶).
- 与单一培养相比,ATR-FTIR证实在共同培养中增强了半纤维素降解.
- 转录学揭示了S. coelicolor中特定碳水化合物活性酶 (CAZyme) 基因的过度表达,这是由于真菌伙伴的活性.
结论:
- 证明了跨领域共同培养的技术可行性和实用性,用于基纤维素价值化.
- 突出了真菌-细菌合作伙伴关系在生物炼油应用中的潜力.
- 提供了通过协同微生物相互作用改善生物产品产量的概念证明.
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