Comamonas testosteroni 菌株对邻苯二甲酸和对苯二甲酸的生物降解。

IF 2.4 4区 生物学 Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY
Folia microbiologica Pub Date : 2024-12-01 Epub Date: 2024-05-29 DOI:10.1007/s12223-024-01176-x
Caner Vural, Hamza Ettadili
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引用次数: 0

摘要

邻苯二甲酸异构体是邻苯二甲酸酯分子的单体,也称为邻苯二甲酸酯,广泛应用于塑料工业。本研究旨在调查五种工业生产的 Comamonas testosteroni 菌株对邻苯二甲酸(PA)和对苯二甲酸(TPA)的生物降解情况:3APTOL、3ABBK、2B、3A1 和 C8。为了评估 C. testosteroni 菌株在发酵培养基中生物降解邻苯二甲酸异构体的能力,采用了一种分析方法,包括高效液相色谱(HPLC)分析。随后,对基因组和质粒 DNA 进行了分子筛选,以确定负责分解这些化学物质的降解基因。通过实时聚合酶链式反应(real-time PCR)筛选了包括ophA2、tphA2、tphA3、pmdA和pmdB在内的相关基因。五株 C. testosteroni 有效降解了 100 mg/L PA(p = 0.033)和 TPA(p = 0.0114)。分子分析表明,所有 C. testosteroni 菌株的基因组和质粒中都含有不同水平的相关基因,这反映在阈值周期(Ct)值上。此外,DNA 熔解温度(Tm)分析也发现了基因组和质粒 DNA 中各组基因之间的细微差别。C. testosteroni 菌株可能是从环境系统中去除邻苯二甲酸异构体的极佳候选菌株。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Biodegradation of phthalic acid and terephthalic acid by Comamonas testosteroni strains.

Biodegradation of phthalic acid and terephthalic acid by Comamonas testosteroni strains.

Phthalic acid isomers are the monomers of phthalate molecules, also known as phthalic acid esters, widely employed in the plastics industry. This study aims to investigate the biodegradation of phthalic acid (PA) and terephthalic acid (TPA) by five industry-borne Comamonas testosteroni strains: 3APTOL, 3ABBK, 2B, 3A1, and C8. To assess the ability of C. testosteroni strains to biodegrade phthalic acid isomers in fermentation media, an analytical method was employed, consisting of high-performance liquid chromatography (HPLC) analyses. Subsequently, molecular screening of the genomic and plasmid DNA was conducted to identify the degradative genes responsible for the breakdown of these chemicals. The genes of interest, including ophA2, tphA2, tphA3, pmdA, and pmdB, were screened by real-time PCR. The five C. testosteroni strains effectively degraded 100% of 100 mg/L PA (p = 0.033) and TPA (p = 0.0114). Molecular analyses indicated that all C. testosteroni strains contained the pertinent genes at different levels within their genomes and plasmids, as reflected in the threshold cycle (Ct) values. Additionally, DNA temperature of melting (Tm) analyses uncovered minor differences between groups of genes in genomic and plasmid DNA. C. testosteroni strains could be excellent candidates for the removal of phthalic acid isomers from environmental systems.

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来源期刊
Folia microbiologica
Folia microbiologica 工程技术-生物工程与应用微生物
CiteScore
5.80
自引率
0.00%
发文量
82
审稿时长
6-12 weeks
期刊介绍: Unlike journals which specialize ever more narrowly, Folia Microbiologica (FM) takes an open approach that spans general, soil, medical and industrial microbiology, plus some branches of immunology. This English-language journal publishes original papers, reviews and mini-reviews, short communications and book reviews. The coverage includes cutting-edge methods and promising new topics, as well as studies using established methods that exhibit promise in practical applications such as medicine, animal husbandry and more. The coverage of FM is expanding beyond Central and Eastern Europe, with a growing proportion of its contents contributed by international authors.
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