Matsuzawa Tomohiko, Watanabe Akira, Shintani Takahiro, Gomi Katsuya, Yaoi Katsuro
Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8566, Japan.
Department of Bioindustrial Informatics and Genomics, Graduate School of Agricultural Science, Tohoku University, 468-1 Aoba, Aramaki, Aoba-ku, Sendai, 980-8572, Japan.
Appl Microbiol Biotechnol. 2021 Apr;105(7):2701-2711. doi: 10.1007/s00253-021-11236-8. Epub 2021 Mar 24.
Aspergillus species are closely associated with humanity through fermentation, infectious disease, and mycotoxin contamination of food. Members of this genus produce various enzymes to degrade plant polysaccharides, including starch, cellulose, xylan, and xyloglucan. This review focus on the machinery of the xyloglucan degradation using glycoside hydrolases, such as xyloglucanases, isoprimeverose-producing oligoxyloglucan hydrolases, and α-xylosidases, in Aspergillus species. Some xyloglucan degradation-related glycoside hydrolases are well conserved in this genus; however, other enzymes are not. Cooperative actions of these glycoside hydrolases are crucial for xyloglucan degradation in Aspergillus species. KEY POINTS: •Xyloglucan degradation-related enzymes of Aspergillus species are reviewed. •Each Aspergillus species possesses a different set of glycoside hydrolases. •The machinery of xyloglucan degradation of A. oryzae is overviewed.
曲霉属真菌通过发酵、传染病以及食物中的霉菌毒素污染与人类密切相关。该属成员产生多种酶来降解植物多糖，包括淀粉、纤维素、木聚糖和木葡聚糖。本综述聚焦于曲霉属真菌中使用糖苷水解酶（如木葡聚糖酶、产生异麦芽糖的低聚木葡聚糖水解酶和α-木糖苷酶）进行木葡聚糖降解的机制。一些与木葡聚糖降解相关的糖苷水解酶在该属中高度保守；然而，其他酶则不然。这些糖苷水解酶的协同作用对于曲霉属真菌中的木葡聚糖降解至关重要。要点：•综述了曲霉属真菌中与木葡聚糖降解相关的酶。•每个曲霉属物种都拥有一套不同的糖苷水解酶。•概述了米曲霉木葡聚糖降解的机制。
