applsci-logo

Journal Browser

Journal Browser

Plant Growth-Promoting Rhizobacteria (PGPR): Microbiological and Genomic Characterization, and Potential Applications

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Applied Biosciences and Bioengineering".

Deadline for manuscript submissions: closed (28 February 2024) | Viewed by 1625

Special Issue Editors


E-Mail Website
Guest Editor
1. Agricultural Research Council, Plant Health and Protection (ARC-PHP), Private Bag X134, Queenswood 0121, South Africa
2. Department of Plant and Soil Sciences, Faculty of Science, Engineering and Agriculture, University of Venda, Private Bag X5050, Thohoyandou 0950, South Africa
Interests: molecular biology; applied microbiology; PCR; microbiology; statistical data analysis; plant biotechnology; environment ecology; environmental microbiology; molecular microbiology

E-Mail Website
Guest Editor
Faculty of Natural & Agricultural Sciences, North-West University, Private Bag X2046, Mmabatho 2735, South Africa
Interests: microbial biotechnology; agriculture; rhizosphere; biofertilizers; metagenomics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Sustainable and increased agricultural production systems are one of the most dependable solutions to sufficiently feed the alarmingly increasing world population, which is estimated to be 10 billion in the next 50 years. In the past several decades, productivity in agriculture has been achieved through the prolonged usage of external chemical inputs. However, these production systems, coupled with the current threat of global climate change, are not sustainable. As one of the most effective and sustainable alternatives to this problem, research and development on plant-growth-promoting rhizobacteria (PGPR) have gained momentum in the past few decades. The rhizosphere of many wild and cultivated plant species harbor hundreds of PGPR strains with several beneficial genes and traits that could be exploited for biotechnological application in agriculture to increase crop productivity and improve soil health. Despite myriads of PGPR characterization studies in the past, several more beneficial strains have yet to be characterized. In this Special Issue, we invite manuscripts including original research articles and reviews that report high-throughput microbiological and genomic characterization to elucidate their phylogeny, metabolic and genomic features, as well as beneficial plant–microbe interactions and signaling methods in the rhizosphere. Moreover, manuscripts that address the biotechnological application of PGPR in sustainable agroecological systems are also invited under this Special Issue.

Dr. Ahmed Idris Hassen
Prof. Dr. Olubukola Oluranti Babalola
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • PGPR
  • rhizosphere
  • rhizobacteria
  • genome
  • formulation
  • phylogeny
  • next-generation sequencing
  • soil
  • inoculants
  • agriculture

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

19 pages, 4251 KiB  
Article
Modulation of Growth and Antioxidative Defense Mechanism in Wheat (Triticum aestivum L.) Mediated by Plant-Beneficial Strain Pseudomonas veronii MR-15 under Drought Conditions
by Maryam Rehman, Muhammad Shahid, Saqib Mahmood, Qasim Ali and Muhammad Azeem
Appl. Sci. 2024, 14(1), 128; https://doi.org/10.3390/app14010128 - 22 Dec 2023
Viewed by 992
Abstract
Drought stress severely influences plants in various ways and is considered an alarming threat to sustainable crop production worldwide. However, plant-growth-promoting rhizobacteria (PGPRs) have the natural ability to tolerate drought and enable plants to induce stress resistance by altering critical metabolic pathways. In [...] Read more.
Drought stress severely influences plants in various ways and is considered an alarming threat to sustainable crop production worldwide. However, plant-growth-promoting rhizobacteria (PGPRs) have the natural ability to tolerate drought and enable plants to induce stress resistance by altering critical metabolic pathways. In this study, we isolated and characterized a drought-tolerant rhizobacterium from the ground nut (Arachis hypogaea). Sequencing of the 16S rRNA gene traced its lineage to Pseudomonas veronii, named MR-15. The strain exhibited natural capabilities to solubilize phosphate, produce indole acetic acid, and grow a drought medium containing PEG (polyethylene glycol). The seeds of two wheat varieties (Triticum aestivum) inoculated with MR-15 were grown under drought and fully hydrated conditions and showed a significant increase in plant biomass, enhanced cellular antioxidant enzyme activity, and reduced reactive oxygen species. The MR-15 strain also significantly increased pigmentation and protein contents compared to plants raised from seeds grown without inoculation. These beneficial effects were consistent under drought stress conditions, indicating that MR-15 effectively alleviated wheat plants from drought-induced cellular oxidative damage. The findings suggest that MR-15 has the potential to serve as a biofertilizer, and further experiments should be conducted to explore its role in promoting plant growth and yield under drought conditions, particularly in semi-arid and arid zones. This is the first study reporting Pseudomonas veronii as a potential PGPR strain. Full article
Show Figures

Figure 1

Back to TopTop