Acinetobacter: A versatile plant growth-promoting rhizobacteria (PGPR)

Mujumdar, Shilpa; Bhoyar, Jayshree; Akkar, Anuja; Hundekar, Shailja; Agnihotri, Neha; Jaybhay, Pratiksha; Bhuyan, Smita S.

doi:10.1016/b978-0-323-91875-6.00009-8

Plant-Microbe Interaction - Recent Advances in Molecular and Biochemical Approaches 2023

DOI: 10.1016/b978-0-323-91875-6.00009-8

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Acinetobacter: A versatile plant growth-promoting rhizobacteria (PGPR)

Shilpa Mujumdar¹,

Jayshree Bhoyar²,

Anuja Akkar³

et al.

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2024

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Cited by 5 publications

References 115 publications

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Novel report of Acinetobacter johnsonii as an indole-producing seed endophyte in Tamarindus indica L

Bhattacharya,

Hazra,

Dutta

et al. 2024

Arch Microbiol

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Novel report of Acinetobacter johnsonii as an indole-producing seed endophyte in Tamarindus indica L

Bhattacharya,

Hazra,

Dutta

et al. 2024

Arch Microbiol

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Key Chemical Soil Parameters for the Assembly of Rhizosphere Bacteria Associated with Avocado Cv Hass Grafted on Landrace Rootstocks

Córdoba-Agudelo,

Arboleda-Rivera,

Borrego-Muñoz

et al. 2024

Curr Microbiol

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Avocado cultivation holds significant economic importance in many countries, ranking Colombia as the fifth largest global producer. Particularly, the Hass cultivar plays a pivotal role in Colombia’s avocado industry, especially in the Department of Antioquia, the primary export region. This cultivar is grown under diverse soil and climate conditions and exhibits considerable genetic polymorphism due to the hybridization of varieties of agronomic significance, leading to a diverse array of landrace rootstocks. However, the role of soil conditions and rootstock genotype in structuring rhizosphere bacterial communities is still lacking. In addressing this knowledge gap, we investigated the influence of two soil conditions on the structure of rhizosphere bacterial communities associated with two landrace genotypes of Persea americana cv. Hass, utilizing 16S rRNA sequencing. Notably, no significant differences related to genotypes were observed. This study reports that the rhizosphere bacterial microbiome remains consistent across avocado landrace rootstocks, while variations in key parameters such as phosphorus, pH, Mg, and Ca drive distinct rhizosphere effects. Our results reveal that despite the soils having similar management, increases in these crucial parameters can lead to bacterial communities with lower alpha diversity and a more complex co-occurrence network. In addition, we found substantial variations in beta diversity, bacterial composition, and metagenome predictions between the two farms, underscoring the role of soil variables in shaping the bacterial microbiome. These findings provide valuable insights into the factors influencing the bacterial communities that may play a role in the health and productivity of crops with agro-industrial potential, such as Hass avocado.

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Bacteria from the skin of amphibians promote growth of Arabidopsis thaliana and Solanum lycopersicum by modifying hormone-related transcriptome response

Romero-Contreras,

González-Serrano,

Bello-López

et al. 2024

Plant Mol Biol

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Plants and microorganisms establish beneficial associations that can improve their development and growth. Recently, it has been demonstrated that bacteria isolated from the skin of amphibians can contribute to plant growth and defense. However, the molecular mechanisms involved in the beneficial effect for the host are still unclear. In this work, we explored whether bacteria isolated from three tropical frogs species can contribute to plant growth. After a wide screening, we identified three bacterial strains with high biostimulant potential, capable of modifying the root structure of Arabidopsis thaliana plants. In addition, applying individual bacterial cultures to Solanum lycopersicum plants induced an increase in their growth. To understand the effect that these microorganisms have over the host plant, we analysed the transcriptomic profile of A. thaliana during the interaction with the C32I bacterium, demonstrating that the presence of the bacteria elicits a transcriptional response associated to plant hormone biosynthesis. Our results show that amphibian skin bacteria can function as biostimulants to improve agricultural crops growth and development by modifying the plant transcriptomic responses.

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Acinetobacter: A versatile plant growth-promoting rhizobacteria (PGPR)

Cited by 5 publications

References 115 publications

Novel report of Acinetobacter johnsonii as an indole-producing seed endophyte in Tamarindus indica L

Novel report of Acinetobacter johnsonii as an indole-producing seed endophyte in Tamarindus indica L

Key Chemical Soil Parameters for the Assembly of Rhizosphere Bacteria Associated with Avocado Cv Hass Grafted on Landrace Rootstocks

Bacteria from the skin of amphibians promote growth of Arabidopsis thaliana and Solanum lycopersicum by modifying hormone-related transcriptome response

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