A piece of the pie: engineering microbiomes by exploiting division of labor in complex polysaccharide consumption.

A piece of the pie: engineering microbiomes by exploiting division of labor in complex polysaccharide consumption.
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DOI:
10.1016/j.coche.2020.08.004
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发表时间:
2020-12
影响因子:
6.6
通讯作者:
Lindemann SR
Lindemann SR
中科院分区:
工程技术2区
文献类型:
--
作者:
Lindemann SR

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虽然众所周知,微生物竞争简单的底物遵循生态竞争排斥原则,但对于复杂底物如何影响微生物群落的生态却知之甚少。多糖的巨大结构多样性使它们成为微生物协同降解的理想底物。消耗多糖的微生物群落代谢分工的潜在机制有:1)基因含量的互补差异;2)多糖降解基因的交替调节;3)水解酶功能的细微差异;4)水解产物运输和消耗的专门化。利用这些机制作为控制点的多糖降解工程分工可能会提高我们设计微生物组的能力,以提高在不同环境下的生产力和稳定性。
Although microbes competing for simple substrates are well-known to obey the ecological competitive exclusion principle, little is known regarding how complex substrates influence the ecology of microbial communities. The vast structural diversity of polysaccharides makes them ideal substrates for cooperative microbial degradation. Potential mechanisms for division of metabolic labor in microbial communities consuming polysaccharides are 1) complementary differences in gene content, 2) alternate regulation of polysaccharide degradation genes, 3) subtle differences in hydrolytic enzyme functionality, and 4) specialization in transport and consumption of hydrolysis products. Engineering division of labor in polysaccharide degradation using these mechanisms as control points may improve our ability to engineer microbiomes for improved productivity and stability in diverse environments.
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