Plant Growth-Promoting Bacteria

A special issue of Microorganisms (ISSN 2076-2607). This special issue belongs to the section "Plant Microbe Interactions".

Deadline for manuscript submissions: 31 March 2025 | Viewed by 1194

Special Issue Editor


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Guest Editor
Departamento de Agronomia, Universidade Federal Rural de Pernambuco, Rua Dom Manuel de Medeiros, s/n, Dois Irmãos, Recife 52171-900, PE, Brazil
Interests: ecosystem services; biological nitrogen fixation; plant growth-promoting bacteria
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Special Issue Information

Dear Colleagues,

Plant growth-promoting bacteria include endophytic and rhizospheric bacteria, which can increase plant growth and yield, reduce the impacts of biotic or abiotic stresses, and reduce the usage of external inputs, such as fertilizer, irrigation, or pesticides, while at least maintaining the current yield. These include bacteria isolated from different plant species. In this Special Issue, we will discuss both the diversity and taxonomical compositions of populations of these bacteria, as well as their mechanisms of action and their effects on major crops such as cereals, soybeans and pulses, oil crops, and major forage species, particularly under field conditions. We will also discuss potential strategies to evaluate them to increase the selection process' effectiveness. We are interested in biotechnological approaches that lead to their increased use in field production systems.

Prof. Dr. Mario De Andrade Lira Junior
Guest Editor

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Keywords

  • rhizobacteria
  • endophytic
  • rhizobia
  • biotic stress
  • abiotic stress
  • fertilizer
  • irrigation

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Published Papers (1 paper)

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Research

14 pages, 5075 KiB  
Article
Exploring the Potential of Bacillus subtilis IS1 and B. amyloliquificiens IS6 to Manage Salinity Stress and Fusarium Wilt Disease in Tomato Plants by Induced Physiological Responses
by Waheed Akram, Shama Sharif, Areeba Rehman, Tehmina Anjum, Basharat Ali, Zill-e-Huma Aftab, Ayesha Shafqat, Laiba Afzal, Bareera Munir, Humaira Rizwana and Guihua Li
Microorganisms 2024, 12(10), 2092; https://doi.org/10.3390/microorganisms12102092 - 19 Oct 2024
Viewed by 951
Abstract
The intensified concerns related to agrochemicals’ ecological and health risks have encouraged the exploration of microbial agents as eco-friendly alternatives. Some members of Bacillus spp. are potential plant-growth-promoting agents and benefit numerous crop plants globally. This study aimed to explore the beneficial effects [...] Read more.
The intensified concerns related to agrochemicals’ ecological and health risks have encouraged the exploration of microbial agents as eco-friendly alternatives. Some members of Bacillus spp. are potential plant-growth-promoting agents and benefit numerous crop plants globally. This study aimed to explore the beneficial effects of two Bacillus strains (B. subtilis strain IS1 and B. amyloliquificiens strain IS6) capable of alleviating the growth of tomato plants against salinity stress and Fusarium wilt disease. These strains were able to significantly promote the growth of tomato plants and biomass accumulation in pot trials in the absence of any stress. Under salinity stress conditions (150 mM NaCl), B. subtilis strain IS1 demonstrated superior performance and significantly increased shoot length (45.74%), root length (101.39%), fresh biomass (62.17%), and dry biomass (49.69%) contents compared to control plants. Similarly, B. subtilis strain IS1 (63.7%) and B. amyloliquificiens strain IS6 (32.1%) effectively suppressed Fusarium wilt disease and significantly increased plant growth indices compared to the pathogen control. Furthermore, these strains increased the production of chlorophyll, carotenoid, and total phenolic contents. They significantly affected the activities of enzymes involved in antioxidant machinery and the phenylpropanoid pathway. Hence, this study effectively demonstrates that these Bacillus strains can effectively alleviate the growth of tomato plants under multiple stress conditions and can be used to develop bio-based formulations for use in the fields. Full article
(This article belongs to the Special Issue Plant Growth-Promoting Bacteria)
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