Genome characterisation of three mycorrhizal helper bacterial strains isolated from a polycyclic aromatic hydrocarbon polluted site.

IF 2.3 3区生物学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY

Molecular Genetics and Genomics Pub Date : 2025-02-22 DOI:10.1007/s00438-025-02232-y

Klaudia Peczyk, Piotr Siupka, Franco Magurno, Monika Malicka, Zofia Piotrowska-Seget

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引用次数: 0

Abstract

The study aimed to explore the genetic and functional potential of mycorrhizal helper bacteria (MHB) strains isolated from polluted soil, focusing on their ability to enhance plant growth and ameliorate the adverse effects of polycyclic aromatic hydrocarbons (PAHs). We sequenced the genomes of three MHB strains isolated from soil contaminated with PAHs and phenol. Moreover, experiments were carried out to check if these bacteria have ability to stimulate the growth of arbuscular mycorrhizal fungi (AMF) and promote plant development. Phylogenomic analysis identified the strains as belonging to the Streptomyces, Pantoea, and Bacillus genera, all exhibiting high tolerance to hydrocarbons. Genome mining revealed genes encoding enzymes for the degradation of aromatic compounds, alongside biosynthetic gene clusters for secondary metabolites such as siderophores and antibiotics. Laboratory experiments confirmed that the studied MHB strains enhance AMF development and spore production while exhibiting plant growth-promoting mechanisms such as siderophore and ammonia production, phosphate solubilization, and cellulolytic enzyme synthesis. These findings highlight the potential application of MHB in microbial-assisted remediation of hydrocarbon-contaminated soils through the tripartite plant-MHB-AMF system.

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从多环芳烃污染区分离的三种菌根辅助菌株的基因组特征。

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来源期刊

Molecular Genetics and Genomics 生物-生化与分子生物学

CiteScore

5.10

自引率

3.20%

发文量

134

审稿时长

1 months

期刊介绍： Molecular Genetics and Genomics (MGG) publishes peer-reviewed articles covering all areas of genetics and genomics. Any approach to the study of genes and genomes is considered, be it experimental, theoretical or synthetic. MGG publishes research on all organisms that is of broad interest to those working in the fields of genetics, genomics, biology, medicine and biotechnology. The journal investigates a broad range of topics, including these from recent issues: mechanisms for extending longevity in a variety of organisms; screening of yeast metal homeostasis genes involved in mitochondrial functions; molecular mapping of cultivar-specific avirulence genes in the rice blast fungus and more.