Harnessing Beneficial Microbes for Drought Tolerance: A Review of Ecological and Agricultural Innovations DOI Creative Commons
Grzegorz Mikiciuk, Tymoteusz Miller, Anna Kisiel

et al.

Agriculture, Journal Year: 2024, Volume and Issue: 14(12), P. 2228 - 2228

Published: Dec. 5, 2024

Drought is an increasingly critical global challenge, significantly impacting agricultural productivity, food security, and ecosystem stability. As climate change intensifies the frequency severity of drought events, innovative strategies are essential to enhance plant resilience sustain systems. This review explores vital role beneficial microbes in conferring tolerance, focusing on Plant Growth-Promoting Rhizobacteria (PGPR), mycorrhizal fungi, endophytes, actinomycetes, cyanobacteria. These microorganisms mitigate stress through diverse mechanisms, including osmotic adjustment, enhancement root architecture, modulation phytohormones, induction antioxidant defenses, regulation stress-responsive gene expression. Ecological innovations leveraging these have demonstrated significant potential bolstering resilience. Strategies such as soil microbiome engineering, bioaugmentation, integration microbial synergies within pest management frameworks sustainability. Additionally, advancements practices, seed coating, amendments, development consortia, precision agriculture technologies, validated effectiveness scalability interventions farming Despite promising advancements, several challenges hinder widespread adoption solutions. Environmental variability can affect performance, necessitating robust adaptable strains. Scale-up commercialization hurdles, economic constraints, regulatory safety considerations also pose barriers. Furthermore, complex interactions between microbes, plants, their environments require a deeper understanding optimize benefits consistently. Future research should focus integrating cutting-edge technologies genomics, synthetic biology, refine interventions. Collaborative efforts among academia, industry, government bridge gap practical implementation. By addressing harnessing innovations, it possible develop resilient sustainable systems capable thriving water-scarce world.

Language: Английский

The role of plant growth promoting rhizobacteria in plant drought stress responses DOI Creative Commons

Maha Chieb,

Emma W. Gachomo

BMC Plant Biology, Journal Year: 2023, Volume and Issue: 23(1)

Published: Aug. 25, 2023

Abstract Climate change has exacerbated the effects of abiotic stresses on plant growth and productivity. Drought is one most important stress factors that interfere with development. Plant selection breeding as well genetic engineering methods used to improve crop drought tolerance are expensive time consuming. Plants use a myriad adaptative mechanisms cope adverse including association beneficial microorganisms such promoting rhizobacteria (PGPR). Inoculation roots different PGPR species been shown promote through variety interconnected physiological, biochemical, molecular, nutritional, metabolic, cellular processes, which include enhanced growth, root elongation, phytohormone production or inhibition, volatile organic compounds. Therefore, colonization by an eco-friendly agricultural method Notably, processes regulated can enhance tolerance. This review addresses current knowledge how affects development describes trigger responses at morphological, molecular levels.

Language: Английский

Citations

157
Plant Growth-Promoting Rhizobacteria (PGPR): A Rampart against the Adverse Effects of Drought Stress DOI Open Access

Naoual Bouremani,

Hafsa Cherif‐Silini, Allaoua Silini

et al.

Water, Journal Year: 2023, Volume and Issue: 15(3), P. 418 - 418

Published: Jan. 19, 2023

Abiotic stress significantly limits plant growth and production. Drought, in particular, is a severe constraint that affects agricultural productivity on global scale. Water induces plants set of morpho-anatomical (modification root leaf structure), physiological, biochemical (relative water content, membrane stability, photosynthesis, hormonal balance, antioxidant systems, osmolyte accumulation) changes mainly employed to cope with the drought stress. These strategies allow overcome unfavorable period limited availability. Currently, promising alternative available improve tolerance under conditions. The use osmotolerant growth-promoting rhizobacteria (PGPR) as inoculants can alleviate by increasing efficiency plant. PGPR drought, through morphology architecture system, production phytohormones, extracellular polysaccharides, ACC 1-(aminocyclopropane-1-carboxylate) deaminase, volatile chemicals, accumulation. They may also enhance defense system induce transcriptional regulation response genes. This review addresses effects growth, adaptation, conditions discusses significant potential modulate physiological against scarcity, ensuring survival improving resistance crops.

Language: Английский

Citations

67
Recent advances in PGPR-mediated resilience toward interactive effects of drought and salt stress in plants DOI Creative Commons
Ahmad Alturki, M. Murali,

Ayman F. Omar

et al.

Frontiers in Microbiology, Journal Year: 2023, Volume and Issue: 14

Published: Sept. 27, 2023

The present crisis at hand revolves around the need to enhance plant resilience various environmental stresses, including abiotic and biotic ensure sustainable agriculture mitigate impact of climate change on crop production. One such promising approach is utilization growth-promoting rhizobacteria (PGPR) mediate these stresses. Plants are constantly exposed stress factors, as drought, salinity, pathogens, nutrient deficiencies, which can significantly reduce yield quality. PGPR beneficial microbes that reside in rhizosphere plants have been shown positively influence growth tolerance through mechanisms, solubilization, phytohormone production, induction systemic resistance. review comprehensively examines mechanisms promotes resilience, acquisition, hormonal regulation, defense induction, focusing recent research findings. advancements made field PGPR-mediated multi-omics approaches ( viz. , genomics, transcriptomics, proteomics, metabolomics) unravel intricate interactions between discussed their molecular pathways involved tolerance. Besides, also emphasizes importance continued implementation PGPR-based strategies address pressing challenges facing global food security commercialization bio-formulations for agricultural.

Language: Английский

Citations

52
Unveiling stress-adapted endophytic bacteria: Characterizing plant growth-promoting traits and assessing cross-inoculation effects on Populus deltoides under abiotic stress DOI
Anamika Jangra, Kishan Kumar,

Sandeep Maikhuri

et al.

Plant Physiology and Biochemistry, Journal Year: 2024, Volume and Issue: 210, P. 108610 - 108610

Published: April 9, 2024

Language: Английский

Citations

33
Synergistic interactions of nanoparticles and plant growth promoting rhizobacteria enhancing soil-plant systems: a multigenerational perspective DOI Creative Commons
Krishan K. Verma, Abhishek Joshi,

Xiu-Peng Song

et al.

Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 15

Published: April 29, 2024

Sustainable food security and safety are major concerns on a global scale, especially in developed nations. Adverse agroclimatic conditions affect the largest agricultural-producing areas, which reduces production of crops. Achieving sustainable is challenging because several factors, such as soil flooding/waterlogging, ultraviolet (UV) rays, acidic/sodic soil, hazardous ions, low high temperatures, nutritional imbalances. Plant growth-promoting rhizobacteria (PGPR) widely employed in-vitro they recognized more environmentally sustainably friendly approach to increasing crop yield contaminated fertile soil. Conversely, use nanoparticles (NPs) an amendment has recently been proposed economical way enhance texture improving agricultural yields. Nowadays, various research experiments have combined or individually applied with PGPR NPs for balancing elements response control adverse situations, expectation that both additives might perform well together. According findings, interactive applications significantly increase yields than alone. The present review summarized functional mechanistic basis role NPs. However, this article focused potential direction realize possible interaction at large scale upcoming years.

Language: Английский

Citations

20
Serratia spp. as plant growth-promoting bacteria alleviating salinity, drought, and nutrient imbalance stresses DOI Creative Commons
Iryna Kulkova, B. Wróbel, Jakub Dobrzyński

et al.

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

Published: March 18, 2024

In agricultural environments, plants are often exposed to abiotic stresses including temperature extremes, salt stress, drought, and heavy metal soil contamination, which leads significant economic losses worldwide. Especially stress drought pose serious challenges since they induce ionic toxicity, osmotic oxidative in plants. A potential solution can be the application of bacteria Serratia spp. known promote plant growth under normal conditions Thus mini-review aims summarize current knowledge on promotion by (under salinity nutrient deficit) highlight areas for development field. So far, it has been proven that strains exhibit a variety traits contributing enhanced tolerance, such as phytohormone production, ACC deaminase activity, nitrogen fixation, P Zn solubilization, antioxidant properties improvement, modulation gene expression. Nevertheless, further research is needed, especially two subjects: elucidating its mechanisms action at molecular level effects indigenous microbiota and, particularly, rhizosphere. both cases, advisable use omics techniques gain in-depth insights into issues. Additionally, some may phytopathogens, therefore studies rule out this possibility recommended prior field trials. It believed improving said stimulate will increase from genus serve an eco-friendly biofertilizer sustainable agriculture more often.

Language: Английский

Citations

18
Choreographing root architecture and rhizosphere interactions through synthetic biology DOI Creative Commons
Carin J. Ragland, Kevin Shih, José R. Dinneny

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Feb. 14, 2024

Abstract Climate change is driving extreme changes to the environment, posing substantial threats global food security and bioenergy. Given direct role of plant roots in mediating plant-environment interactions, engineering form function root systems their associated microbiota may mitigate these effects. Synthetic genetic circuits have enabled sophisticated control gene expression microbial for years a surge advances has heralded extension this approach multicellular species. Targeting tools affect structure, exudation, microbe activity on surfaces provide multiple strategies advancement climate-ready crops.

Language: Английский

Citations

17
Multilevel approach to plant–nanomaterial relationships: from cells to living ecosystems DOI Creative Commons
Halley Caixeta Oliveira, Amedea B. Seabra, Selahattin Kondak

et al.

Journal of Experimental Botany, Journal Year: 2023, Volume and Issue: 74(12), P. 3406 - 3424

Published: March 22, 2023

Abstract Due to their unique properties, nanomaterials behave peculiarly in biosystems. Regarding plants, the interactions of can be interpreted on a spatial scale: from local cells systemic effects whole plants and ecosystems. Interpreted time scale, may immediate or subsequent. At cellular level, composition structure cell wall membranes are modified by nanomaterials, promoting internalization. The germination seedling physiology primary secondary metabolism shoot realized at organ organism levels. Nanomaterials interact with beneficial ecological partners plants. plant growth-promoting rhizobacteria legume–rhizobia symbiosis stimulating inhibitory, depending concentration type nanomaterial. exert negative effect arbuscular mycorrhiza, vice versa. Pollinators exposed which affect reproduction. substances released roots influence availability rhizosphere, components trigger internalization, translocation, transformation nanomaterials. Understanding multilevel bidirectional relationship between is great relevance.

Language: Английский

Citations

36
PGPR-Mediated Breakthroughs in Plant Stress Tolerance for Sustainable Farming DOI
Arun Karnwal,

Seweta Shrivastava,

Abdel Rahman Al-Tawaha

et al.

Journal of Plant Growth Regulation, Journal Year: 2023, Volume and Issue: 43(9), P. 2955 - 2971

Published: May 1, 2023

Language: Английский

Citations

30
Mitigation of water scarcity with sustained growth of Rice by plant growth promoting bacteria DOI Creative Commons

Naima Mahreen,

Sumera Yasmin, Muhammad Asif

et al.

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 14

Published: Jan. 23, 2023

Climate change augments the risk to food security by inducing drought stress and a drastic decline in global rice production. Plant growth-promoting bacteria (PGPB) have been known improve plant growth under stress. Here present study, we isolated, identified, well-characterized eight drought-tolerant from rhizosphere that are tolerant 20% PEG-8000. These strains exhibited multiple traits, i.e., 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase activity, exopolysaccharide production, phosphate (P)-solubilizing activity (51–356 µg ml -1 ), indole-3 acetic (IAA) production (14.3–46.2 of organic acids (72–178 ). Inoculation bacterial consortium ( Bacillus subtilis NM-2, Brucella haematophilum NM-4, cereus NM-6) significantly improved seedling vigor index (1009.2-1100) as compared non-inoculated stressed plants (630-957). Through rhizoscanning, efficiency was validated root parameters such length (17%), diameter, surface area (18%) all tested genotypes with respective treatments. Furthermore, response inoculation on three positively correlated ameliorating traits accumulation osmoprotectant, proline (85.8%–122%), relative water content (51%), membrane stability (64%), antioxidant enzymes reduce oxidative damage reactive oxygen species. A decrease temperature chlorophyll inoculated were found using infrared thermal imaging soil analyzer development (SPAD), respectively. The key supporting role toward responses robust techniques like an gas analyzer. principal component analysis depicts contribution yield integration genotype (NIBGE-DT02) potential strains, NM-6, can serve effective bioinoculant cope scarcity current alarming issues related fluctuating climate.

Language: Английский

Citations

29