Abstract:

To explore new approaches for the application of efficient cellulose-degrading microorganisms in agriculture, this study conducted a literature review and analysison the screening of cellulose degrading bacteria and the optimization of enzyme production in recent years, summarizing and analyzing four key aspects: strain types, enzyme production condition optimization, construction of composite microbial communities, and applications of these microbial communities in agriculture. The study outlines different screening strategies and advantages of various strains, analyzes the raw material types and strain specificity for optimizing cellulose-degrading enzyme production conditions, and discusses the necessity and significance of constructing composite microbial communities. Additionally, it provides a comprehensive overview of the applications of cellulose-degrading microorganisms (or communities) in three areas: biofertilizers, crop residue utilization, and bioenergy. The study identifies current limitations, such as the limited variety of cellulases produced by single strains and the need for optimized enzyme production conditions in composite microbial communities. To address these issues, the study proposes focusing on enhancing the screening of efficient cellulose-degrading microorganisms, utilizing molecular biology techniques to construct gene banks for cellulose-degrading microorganisms, and studying their degradation mechanisms. These efforts aim to improve the efficiency of screening for cellulose-degrading microorganisms, reduce the waste of agricultural resources, and promote rapid agricultural development and resource recycling.

Key words: microorganisms, cellulose-degrading microorganisms, cellulase, community, composite microbial system construction, synergistic effect, agricultural residues, biological degrading