Impact of plant growth-promoting rhizobacteria (PGPR) on plant nutrition and root characteristics: Current perspective

Plant Stress, Journal Year: 2023, Volume and Issue: 11, P. 100341 - 100341

Published: Dec. 28, 2023

Through a variety of mechanisms, including increasing the amount readily available mineral nutrients, regulating phytohormone levels, and biocontrol phytopathogens, plant growth-promoting rhizobacteria (PGPR) associated with rhizosphere either directly or indirectly stimulates growth development. The establishment, survival, persistence PGPR inoculants are widely acknowledged to be contingent upon these two parameters, in addition intricate network interactions within rhizosphere. In general, soil is moist environment significant amounts carbon that have been degraded harbors large population microbes. rhizo-microbiome crucial agriculture because wide root exudates cell debris attract unique distinct patterns microbial colonization. plays role manufacture regulation extracellular molecules, hormones, secondary metabolites, antibiotics, various signaling chemicals. Additionally, composition influences texture enhancement. Research has shown can used treat plants inoculate promote alters physiology entire plant, which enhances nutrient uptake affects effectiveness activity. specific biochemical processes involved this phenomenon often not well understood. Nevertheless, new studies shed light on mechanisms via by induce responses, both at local systemic levels. Insufficient information regarding impact mechanism molecules metabolic pathways characteristics. Consequently, review will concentrate elucidating identifying essential exert influence root-microbe interactions.

Language: Английский

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Plant-Microbe Interactions under the Extreme Habitats and Their Potential Applications

Microorganisms, Journal Year: 2024, Volume and Issue: 12(3), P. 448 - 448

Published: Feb. 22, 2024

Plant-microbe associations define a key interaction and have significant ecological biotechnological perspectives. In recent times, plant-associated microbes from extreme environments been extensively explored for their multifaceted benefits to plants the environment, thereby gaining momentum in global research. Plant-associated extremophiles highlight ubiquitous occurrences, inhabiting habitats exhibiting enormous diversity. The remarkable capacity of exist environmental conditions is attributed evolution adaptive mechanisms these at genetic physiological levels. addition, major impact promoting plant growth development conferring stress tolerance host plant, contributing immensely adaptation survival conditions. Considering socio-economic perspective, article discusses significance emerging biotechnologies with focus on role dynamic plants. Through this article, authors aim discuss understand favorable dynamics utilities.

Language: Английский

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Plant-microbe interactions in the rhizosphere for smarter and more sustainable crop fertilization: the case of PGPR-based biofertilizers

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 15

Published: Aug. 8, 2024

Biofertilizers based on plant growth promoting rhizobacteria (PGPR) are nowadays gaining increasingly attention as a modern tool for more sustainable agriculture due to their ability in ameliorating root nutrient acquisition. For many years, most research was focused the screening and characterization of PGPR functioning nitrogen (N) or phosphorus (P) biofertilizers. However, with increasing demand food using far fewer chemical inputs, new investigations have been carried out explore potential use such bacteria also potassium (K), sulfur (S), zinc (Zn), iron (Fe) In this review, we update biofertilizers smarter crop production deliberate prospects microbiome engineering-based methods tools shed light improvement mineral nutrition. The current era omics revolution has enabled design synthetic microbial communities (named

Language: Английский

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Light-emitting plants development by inoculating of Vibrio campbellii RMT1 on the rhizospheric zone of Aglaonema cochinchinense

Photochemical & Photobiological Sciences, Journal Year: 2024, Volume and Issue: 23(5), P. 973 - 985

Published: April 16, 2024

Language: Английский

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Rhizobacterial Volatile Organic Compounds: Implications for Agricultural Ecosystems' Nutrient Cycling and Soil Health

Heliyon, Journal Year: 2024, Volume and Issue: 10(23), P. e40522 - e40522

Published: Nov. 20, 2024

Plant growth-promoting rhizobacteria (PGPR) have emerged as key players in sustainable agriculture due to their ability enhance plant growth, nutrient uptake, and disease resistance. A significant aspect of PGPR is the emission volatile organic compounds (VOCs), which serve signaling molecules that influence various physiological processes plants. This review article explores complex interactions between rhizobacterial VOCs soil health, focusing particularly on role cycling within agricultural ecosystems. By investigating mechanism production release by rhizobacteria, along with impacts properties microbial communities. We aim highlight potential (VOCs) for management. Additionally, we discuss promoting root enhancing processes. providing insights into these mechanisms, this offers tailored strategies exploring optimize availability, fertility, address environmental challenges agriculture. Exploring presents an opportunity establish resilient systems significantly global food security promote stewardship.

Language: Английский

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Co-inoculation of Trichoderma viride with Azospirillum brasilense could suppress the development of Harpophora maydis-infected maize in Egypt

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 15

Published: Feb. 6, 2025

Plant diseases caused by fungal pathogens are responsible for severe damage to strategic crops worldwide. Late wilt disease (LWD) is a vascular that occurs late in maize development. Harpophora maydis, the causative agent of LWD, significant economic losses Egypt. Therefore, aim this study was control LWD using an alternative approach reduce use chemical pesticides. A combination Trichoderma viride, biocontrol agent, and Azospirillum brasilense, bacterial endophytic plant growth promoter, applied vitro planta. T. viride showed high mycoparasitic potential against H. maydis via various antagonistic activities, including production lytic enzymes, secondary metabolites, volatile compounds, siderophores. A. brasilense filtrates were also shown suppress growth, addition their ability produce gibberellic indole acetic acids. change metabolites secreted observed GC/MS presence maydis. field experiment conducted on susceptible resistant hybrids evaluate activity combined with incidence as well promotion under conditions. The data revealed decrease both severity plants treated and/or brasilense. Further, there noticeable increase all yield parameters. An anatomical examination inoculated roots reflective responses biotic stress. Taken together, obtained results provide successful eco-friendly management strategies maize.

Language: Английский

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Characterization of the Priestia megaterium ZS-3 siderophore and studies on its growth-promoting effects

BMC Microbiology, Journal Year: 2025, Volume and Issue: 25(1)

Published: March 12, 2025

The ability of plant growth-promoting rhizobacteria (PGPR) to alleviate iron deficiency-induced chlorosis in plants has been widely reported, but the role siderophores re-greening process rarely investigated. In this study, Priestia megaterium ZS-3 (ZS-3) siderophore was first characterized, and a 100-fold concentration crude extract extracted by solid-phase extraction used inoculate Arabidopsis thaliana investigate whether could presence an insoluble source determine how it promoted growth. results indicated that -Fe + Fe2O3 (Fe2O3) treatment induced decrease growth nutritional status compared with those 1/2 MS (one-half-strength Murashige Skoog medium). Expression levels representative genes for chlorophyll synthesis, CHLM CHLG, increased 85.41% 77.05% treatment; IRT1 FRO2 inoculated (T2 treatment) were upregulated 88.1% 87.20%, respectively. These indicate upregulates expressions increases photosynthesis helps increase transcription activity ferric-chelate reductase. Compared treatment, T2 group soluble protein contents 2.64- 3.47-fold, improved activities reductase peroxidase (POD) 3.69- 2.9-fold, respectively, indicating maintained normal under stress increasing antioxidant enzymes. This study revealed Ferrioxamine E [M Fe-2 H] enhances uptake transport at transcriptional level, confirming important deficiency status, suggest acquire iron, alleviates promotes through mechanism I acquisition. we closely linked structural characterization quantification Fe elucidate promotional Fe-deficient environments.

Language: Английский

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Bacillus velezensis HR6-1 enhances salt tolerance in tomato by increasing endogenous cytokinin content and improving ROS scavenging

Microbiological Research, Journal Year: 2025, Volume and Issue: unknown, P. 128143 - 128143

Published: March 1, 2025

Language: Английский

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Plant Growth Promoting Rhizobacteria (PGPR) induced protection: A plant immunity perspective

Physiologia Plantarum, Journal Year: 2024, Volume and Issue: 176(5)

Published: Sept. 1, 2024

Abstract Plant‐environment interactions, particularly biotic stress, are increasingly essential for global food security due to crop losses in the dynamic environment. Therefore, understanding plant responses stress is vital mitigate damage. Beneficial microorganisms and their association with plants can reduce damage associated pathogens. One such group PGPR (Plant growth‐promoting rhizobacteria), which influences immunity significantly by interacting factors signalling compounds. This review explores types, metabolism, mechanisms of action PGPR, including enzyme pathways compounds secreted that modulate gene protein expression during defence. Furthermore, will delve into crosstalk between other growth regulators compounds, elucidating physiological, biochemical, molecular insights PGPR's impact on under multiple stresses, interactions fungi, bacteria, viruses. Overall, comprehensively adds our knowledge about role its application agricultural resilience security.

Language: Английский

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Remediation of Saline Soils Using Halo-Tolerant Plant Growth Promoting Rhizobacteria

International Journal of Environment and Climate Change, Journal Year: 2024, Volume and Issue: 14(6), P. 24 - 35

Published: June 4, 2024

Soil salinization poses a significant threat to global agriculture, affecting approximately 6.73m Ha land area in India. Salinity stress impacts plant growth and soil health negatively, leading reduced crop yields degradation. This review examines the sources effects of salinity, highlighting intricate interplay between salinity nutrients its remediation. Traditional methods for remediation often have detrimental long-term effects, prompting exploration alternative strategies such as use halo-tolerant growth-promoting rhizobacteria. HT-PGPR offer promising solution sustainable agriculture by enhancing fertility resilience through various mechanisms. Furthermore, this identifies research gaps understanding metabolic pathways strain selection HT-PGPR, well their interactions with microbiota. Future directions include field-scale experiments validate effectiveness economic viability inoculation large-scale application saline soils. Overall, leveraging potential represents critical step towards mitigating challenge ensuring food security face climate change.

Language: Английский

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