An updated overview on the regulatory circuits of polyhydroxyalkanoates synthesis.

An updated overview on the regulatory circuits of polyhydroxyalkanoates synthesis.
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聚羟基脂肪酸酯合成调节回路的最新概述

DOI:
10.1111/1751-7915.13915
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发表时间:
2022-05
影响因子:
5.7
通讯作者:
Han, Jing
Han, Jing
中科院分区:
工程技术2区
文献类型:
--
作者:
Mitra, Ruchira;Xu, Tong;Chen, Guo-Qiang;Xiang, Hua;Han, Jing

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聚羟基烷酸酯(PHA)是一种很有前途的、可持续发展的石油基合成塑料替代品。对PHA合成的调控正受到相当大的重视,因为工程化的调控因子可能有助于培育具有提高PHA合成能力的菌株。PHA的合成受到许多调控网络的专门调控。它们严格控制PHA的含量、颗粒大小及其在细胞中的分布。大多数积累PHA的微生物都有多个调节网络,这些网络对PHA的新陈代谢产生综合影响。其中,从全球监管机构到特定监管机构的几个因素,到目前为止已经被识别和表征。这篇综述试图分类总结在一些重要的PHA产生微生物中运行的不同调控回路。然而,在一些生物体中,参与调节PHA合成的详细机制还没有被很好地探索,因此需要进一步的研究。这篇综述中提供的信息可能有助于研究人员确定PHA法规中普遍存在的研究空白。对PHA合成的调控是多种多样的,由几个调节因子组成。大多数积累PHA的微生物都拥有多个调控网络,这些网络以一种集成的方式运行来调节PHA的合成。本文综述了如何利用一些最具特征的微生物菌株作为模式生物来调控PHA的合成。
Polyhydroxyalkanoates (PHA) are a promising and sustainable alternative to the petroleum‐based synthetic plastics. Regulation of PHA synthesis is receiving considerable importance as engineering the regulatory factors might help developing strains with improved PHA‐producing abilities. PHA synthesis is dedicatedly regulated by a number of regulatory networks. They tightly control the PHA content, granule size and their distribution in cells. Most PHA‐accumulating microorganisms have multiple regulatory networks that impart a combined effect on PHA metabolism. Among them, several factors ranging from global to specific regulators, have been identified and characterized till now. This review is an attempt to categorically summarize the diverse regulatory circuits that operate in some important PHA‐producing microorganisms. However, in several organisms, the detailed mechanisms involved in the regulation of PHA synthesis is not well‐explored and hence further research is needed. The information presented in this review might help researcher to identify the prevailing research gaps in PHA regulation. Regulation of PHA synthesis is very diverse, comprising of several regulatory factors. Most PHA‐accumulating microorganisms possess multiple regulatory networks that operate in an integrated manner to regulate PHA synthesis. This review provides an overview on how the PHA synthesis is regulated using some most characterized microbial strains as model organism.
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