Actinobacteria isolated from Tunisian forest soils show high diversity and biotechnological potential

Hamdi, Chadlia; Arous, Fatma; Boudagga, Soumaya; Harrath, Nouha; Nwodo, Uchechukwu; Jaouani, Atef

doi:10.1007/s11756-023-01515-2

Biologia

2023

DOI: 10.1007/s11756-023-01515-2

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Actinobacteria isolated from Tunisian forest soils show high diversity and biotechnological potential

Chadlia Hamdi,

Fatma Arous,

Soumaya Boudagga

et al.

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2024

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Bioactive Potential of Actinobacteria Strains Isolated from the Rhizosphere of Lavender, Lemon Balm, and Oregano

Sáhó,

Karikás,

Ásványi

et al. 2024

Agriculture

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The objective of this study was to isolate and characterize actinobacteria from the rhizosphere of medicinal and aromatic plants, specifically lavender (Lavandula angustifolia Mill.), lemon balm (Melissa officinalis L.), and oregano (Origanum vulgare L.). Rhizospheric soil samples revealed a high abundance of culturable actinobacteria (6.97–7.23 log10 CFU/g). Six isolates were selected for their promising enzymatic activities (lignin peroxidase, carboxymethyl cellulase) and antimicrobial properties. Isolates M345 and M162 exhibited the highest cellulase activity indices (3.19 ± 0.71 and 2.54 ± 0.22, respectively), with five isolates producing lignin peroxidase. These actinobacteria also demonstrated plant growth-promoting traits such as phosphate solubilization and nitrogen fixation, along with strong antimicrobial activity against Gram-negative bacteria and phytopathogenic fungi. Additionally, they significantly enhanced maize seed germination, increasing the vigor index from 4283.33 ± 1264.37 to 6248.28 ± 1661.94 compared to that of the control. These results indicate that the isolated actinobacteria strains hold potential as microbial inoculants for sustainable agriculture, contributing to soil health, plant growth, and pathogen management.

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Bioactive Potential of Actinobacteria Strains Isolated from the Rhizosphere of Lavender, Lemon Balm, and Oregano

Sáhó,

Karikás,

Ásványi

et al. 2024

Agriculture

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Actinobacteria isolated from Tunisian forest soils show high diversity and biotechnological potential

Cited by 1 publication

References 59 publications

Bioactive Potential of Actinobacteria Strains Isolated from the Rhizosphere of Lavender, Lemon Balm, and Oregano

Bioactive Potential of Actinobacteria Strains Isolated from the Rhizosphere of Lavender, Lemon Balm, and Oregano

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