Regulatory Mechanisms of Plant Growth-Promoting Rhizobacteria and Plant Nutrition against Abiotic Stresses in Brassicaceae Family

Jalal, Arshad; Oliveira, Carlos Eduardo da Silva; Galindo, Fernando Shintate; Rosa, Poliana Aparecida Leonel; Gato, Isabela Martins Bueno; Lima, Bruno Horschut de; Filho, Marcelo Carvalho Minhoto Teixeira

doi:10.3390/life13010211

Cited by 33 publications

(14 citation statements)

References 231 publications

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“…Subtropical and temperate climates, such as those found in North America, Europe, and Asia, may present different challenges and opportunities for microbial inoculation compared to the tropical environments used in this research. Factors such as soil types, temperature fluctuations, and different crop varieties and rotations may influence the interaction between the PGPBs and the plants, potentially impacting the effectiveness of these inoculations [ 17 , 71 ]. The specific conditions tested in this study, such as no-till practices, the type of N fertilizer used (in our case urea), and the corn hybrid employed are important factors to consider when interpreting the results.…”

Section: Discussionmentioning

confidence: 99%

Impact of nitrogen fertilizer sustainability on corn crop yield: the role of beneficial microbial inoculation interactions

Galindo,

Pagliari,

da Silva

et al. 2024

BMC Plant Biol

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Background Considering the challenges posed by nitrogen (N) pollution and its impact on food security and sustainability, it is crucial to develop management techniques that optimize N fertilization in croplands. Our research intended to explore the potential benefits of co-inoculation with Azospirillum brasilense and Bacillus subtilis combined with N application rates on corn plants. The study focused on evaluating corn photosynthesis-related parameters, oxidative stress assay, and physiological nutrient use parameters. Focus was placed on the eventual improved capacity of plants to recover N from applied fertilizers (AFR) and enhance N use efficiency (NUE) during photosynthesis. The two-year field trial involved four seed inoculation treatments (control, A. brasilense, B. subtilis, and A. brasilense + B. subtilis) and five N application rates (0 to 240 kg N ha−1, applied as side-dress). Results Our results suggested that the combined effects of microbial consortia and adequate N-application rates played a crucial role in N-recovery; enhanced NUE; increased N accumulation, leaf chlorophyll index (LCI), and shoot and root growth; consequently improving corn grain yield. The integration of inoculation and adequate N rates upregulated CO2 uptake and assimilation, transpiration, and water use efficiency, while downregulated oxidative stress. Conclusions The results indicated that the optimum N application rate could be reduced from 240 to 175 kg N ha−1 while increasing corn yield by 5.2%. Furthermore, our findings suggest that replacing 240 by 175 kg N ha−1 of N fertilizer (-65 kg N ha−1) with microbial consortia would reduce CO2 emission by 682.5 kg CO2 −e ha−1. Excessive N application, mainly with the presence of beneficial bacteria, can disrupt N-balance in the plant, alter soil and bacteria levels, and ultimately affect plant growth and yield. Hence, highlighting the importance of adequate N management to maximize the benefits of inoculation in agriculture and to counteract N loss from agricultural systems intensification.

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Section: Discussionmentioning

confidence: 99%

Impact of nitrogen fertilizer sustainability on corn crop yield: the role of beneficial microbial inoculation interactions

Galindo,

Pagliari,

da Silva

et al. 2024

BMC Plant Biol

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“… Riaz et al (2021) stated that Bacillus thuringiensis (Bt) produces pest-killing proteins, which is why it is widely used to protect plants against pests. The intervention of biological agents such as PGPRs coupled with proper plant nutrition can improve the agricultural importance of different plant species ( Jalal et al, 2023 ). Biopesticides incorporating PGPRs offer a sustainable, environmentally-friendly approach to combating plant pests and diseases.…”

Section: Plant Growth-promoting Rhizobacteria (Pgpr)mentioning

confidence: 99%

“…PGPRs have demonstrated their ability to provide plants with essential nutrients to enhance their productivity, protect plants from stresses of abiotic and biotic origin, and prevent attacks by plant pathogens ( Agbodjato et al, 2021 ; Fasusi, Cruz & Babalola, 2021 ). Several different genera of micro-organisms are currently used in agriculture worldwide ( Jalal et al, 2023 ; Prasad et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Promoting sustainable agriculture by exploiting plant growth-promoting rhizobacteria (PGPR) to improve maize and cowpea crops

Agbodjato,

Babalola

2024

PeerJ

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Maize and cowpea are among the staple foods most consumed by most of the African population, and are of significant importance in food security, crop diversification, biodiversity preservation, and livelihoods. In order to satisfy the growing demand for agricultural products, fertilizers and pesticides have been extensively used to increase yields and protect plants against pathogens. However, the excessive use of these chemicals has harmful consequences on the environment and also on public health. These include soil acidification, loss of biodiversity, groundwater pollution, reduced soil fertility, contamination of crops by heavy metals, etc. Therefore, essential to find alternatives to promote sustainable agriculture and ensure the food and well-being of the people. Among these alternatives, agricultural techniques that offer sustainable, environmentally friendly solutions that reduce or eliminate the excessive use of agricultural inputs are increasingly attracting the attention of researchers. One such alternative is the use of beneficial soil microorganisms such as plant growth-promoting rhizobacteria (PGPR). PGPR provides a variety of ecological services and can play an essential role as crop yield enhancers and biological control agents. They can promote root development in plants, increasing their capacity to absorb water and nutrients from the soil, increase stress tolerance, reduce disease and promote root development. Previous research has highlighted the benefits of using PGPRs to increase agricultural productivity. A thorough understanding of the mechanisms of action of PGPRs and their exploitation as biofertilizers would present a promising prospect for increasing agricultural production, particularly in maize and cowpea, and for ensuring sustainable and prosperous agriculture, while contributing to food security and reducing the impact of chemical fertilizers and pesticides on the environment. Looking ahead, PGPR research should continue to deepen our understanding of these microorganisms and their impact on crops, with a view to constantly improving sustainable agricultural practices. On the other hand, farmers and agricultural industry players need to be made aware of the benefits of PGPRs and encouraged to adopt them to promote sustainable agricultural practices.

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“…Plant growth-promoting rhizobacteria employ various strategies to endure harsh weather conditions (Table 1). Plant growth-promoting rhizobacteria tackle abiotic stresses by boosting several physiological and biochemical processes (nutrient uptake, photosynthesis, and source-sink relationships), metabolism and the regulation of homeostasis, osmotic potential, protein function, phytohormone production (indole-3-acetic acid and 1-aminocyclopropane-1carboxylic acid deaminase), enzymatic activity, and nutrient solubilization [20][21][22]. To combat the punitive impact of abiotic stresses, numerous PGPR strains (including Bradyrhizobium sp.…”

Section: Introductionmentioning

confidence: 99%

Beneficial Microorganisms Improve Agricultural Sustainability under Climatic Extremes

Jalal

Oliveira

Rosa

et al. 2023

Life

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The challenging alterations in climate in the last decades have had direct and indirect influences on biotic and abiotic stresses that have led to devastating implications on agricultural crop production and food security. Extreme environmental conditions, such as abiotic stresses, offer great opportunities to study the influence of different microorganisms in plant development and agricultural productivity. The focus of this review is to highlight the mechanisms of plant growth-promoting microorganisms (especially bacteria and fungi) adapted to environmental induced stresses such as drought, salinity, heavy metals, flooding, extreme temperatures, and intense light. The present state of knowledge focuses on the potential, prospective, and biotechnological approaches of plant growth-promoting bacteria and fungi to improve plant nutrition, physio-biochemical attributes, and the fitness of plants under environmental stresses. The current review focuses on the importance of the microbial community in improving sustainable crop production under changing climatic scenarios.

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Regulatory Mechanisms of Plant Growth-Promoting Rhizobacteria and Plant Nutrition against Abiotic Stresses in Brassicaceae Family

Cited by 33 publications

References 231 publications

Impact of nitrogen fertilizer sustainability on corn crop yield: the role of beneficial microbial inoculation interactions

Impact of nitrogen fertilizer sustainability on corn crop yield: the role of beneficial microbial inoculation interactions

Promoting sustainable agriculture by exploiting plant growth-promoting rhizobacteria (PGPR) to improve maize and cowpea crops

Beneficial Microorganisms Improve Agricultural Sustainability under Climatic Extremes

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