Halotolerant plant growth-promoting rhizobacteria improve soil fertility and plant salinity tolerance for sustainable agriculture—A review

Plant Stress, Journal Year: 2024, Volume and Issue: 12, P. 100482 - 100482

Published: May 14, 2024

Due to climate change, expansion of salt-affected arable lands has emerged as a major threat global food security and agricultural sustainability. Conventional crop breeding programs have proven insufficient for mitigating the risks salt stress in soil productivity. Research on improving health tolerance boost yield performance under by plant-associated microbiomes gained considerable attention over past few decades. In addition rehabilitation salt-degraded soils, halotolerant plant growth-promoting rhizobacteria (HT-PGPR) are effective stimulating growth, nutritional values yields, increasing tolerance/resistance abiotic/biotic conditions plants. To alleviate salinity stress, HT-PGPR employ wide range mechanisms, including production secondary metabolites siderophores, synthesis phytohormones enzymes, maintenance ion homeostasis, nutrient availability Because our goal is continuously improve understanding their impact agriculture, current review addresses challenges associated with salinity, updates scientific community solutions (e.g., HT-PGPR) sustainable agriculture farming practices.

Language: Английский

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Chitosan and Chitosan Nanoparticles Differentially Alleviate Salinity Stress in Phaseolus vulgaris L. Plants

Plants, Journal Year: 2024, Volume and Issue: 13(3), P. 398 - 398

Published: Jan. 29, 2024

Salinity stress can significantly cause negative impacts on the physiological and biochemical traits of plants and, consequently, a reduction in yield productivity crops. Therefore, current study aimed to investigate effects chitosan (Cs) nanoparticles (CsNPs) mitigate salinity (i.e., 25, 50, 100, 200 mM NaCl) improve pigment fractions, carbohydrates content, ions proline, hydrogen peroxide, lipid peroxidation, electrolyte leakage antioxidant system Phaseolus vulgaris L. grown clay–sandy soil. Methacrylic acid was used synthesize CsNPs, with an average size 40 ± 2 nm. negatively affected traits, carbohydrate content. However, under salt stress, application either Cs or CsNPs improved yield, system, while these treatments reduced leakage. The positive were shown be more beneficial than when applied exogenously stress. In this context, it could concluded that saline soils.

Language: Английский

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Nano-Hydroxyapatite and ZnO-NPs Mitigate Pb Stress in Maize

Agronomy, Journal Year: 2023, Volume and Issue: 13(4), P. 1174 - 1174

Published: April 20, 2023

Heavy metals (HMs) stress, particularly lead (Pb) is one of the most hazardous environmental stresses that can negatively affect plants’ growth, yield, and quality. Therefore, effects zinc oxide nanoparticles (ZnO-NPs; 50 mg L−1), nano-hydroxyapatite (HP-NPs; kg−1), their combination on physiological, yield traits maize grown in soil contaminated with Pb (i.e., 100 kg−1) were investigated. The results showed stress significantly reduced plant leaf area by 50.9% at 40 days after sowing (DAS), 55.5% 70 DAS, 54.2% DAS comparison to unstressed plants (control). However, combined application ZnO-NPs (50 L−1) + HP-NPs adverse growth terms increasing 117.6% Pb-contaminated (100 kg−1). Similarly, resulted increments total chlorophyll content 47.1%, photosynthesis rate 255.1%, stomatal conductance 380% obtained from stressed Pb. On other hand, antioxidants such as sodium dismutase (SOD; 87.1%), peroxidase (POX; 90.8%), catalase (CAT; 146%), proline (116%) increased a result compared plants. Moreover, N, P, K, Zn contents whole under decreased 38.7%, 69.9%, 46.8%, 82.1%, respectively, those control. Whereas treatment uptake nutrients and, consequently, highest values ear weight, grain harvest index obtained. Furthermore, biomass 77.6% grains 90.21% exposed stress. In conclusion, improved physiological traits, antioxidants, well elemental

Language: Английский

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Nanoparticles Mediated Salt Stress Resilience: A Holistic Exploration of Physiological, Biochemical, and Nano-omics Approaches

Reviews of Environmental Contamination and Toxicology, Journal Year: 2024, Volume and Issue: 262(1)

Published: Sept. 6, 2024

Language: Английский

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Zinc oxide nanoparticles influence on plant tolerance to salinity stress: insights into physiological, biochemical, and molecular responses

Environmental Geochemistry and Health, Journal Year: 2024, Volume and Issue: 46(5)

Published: April 5, 2024

Language: Английский

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Residual efficiency of iron-nanoparticles and different iron sources on growth, and antioxidants in maize plants under salts stress: life cycle study

Heliyon, Journal Year: 2024, Volume and Issue: 10(7), P. e28973 - e28973

Published: April 1, 2024

Exogenous application of iron (Fe) may alleviate salinity stress in plants growing saline soils. This comparative study evaluated the residual effects nanoparticles (FNp) with two other Fe sources including iron-sulphate (FS) and iron-chelate (FC) on maize (

Language: Английский

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Impact of Silicon Nanoparticle Priming on Metabolic Responses and Seed Quality of Chia (Salvia hispanica L.) under Salt Stress

Food Bioscience, Journal Year: 2025, Volume and Issue: unknown, P. 106119 - 106119

Published: Feb. 1, 2025

Language: Английский

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Integrative Effects of Zinc Nanoparticle and PGRs to Mitigate Salt Stress in Maize

Agronomy, Journal Year: 2023, Volume and Issue: 13(6), P. 1655 - 1655

Published: June 20, 2023

Salinity is one of the most critical problems for agricultural development and threatens future food safety. Therefore, we aimed to investigate root application zinc oxide nanoparticles (ZnO-NPs; 0, 50, 100 mg/L), 24-epibrassinolide (EBL; 0.02, 0.04 µM), their combinations on growth performance maize (Zea mays L.) as a model plant grown under salt stress (i.e., 5 10 dS m−1) in hydroponic system. The results showed that highest negatively affected growth, physiological, biochemical traits maize. However, EBL, ZnO-NPs, significantly mitigated improved physiological system plants. In particular, combination treatment mg/L ZnO-NPs + 0.02 µM EBL surpassed all other treatments resulted shoot leaf area, relative water content, net photosynthesis, total chlorophyll uptake (Zn) potassium (K). Furthermore, it minimized by reducing Na uptake, Na/K ratio, proline stressed For example, length +175%, +39%, area +181%, RWC +12%, photosynthesis +275, content +33%, phenolic +38%, comparison those obtained from control, respectively. enhanced roots leaves Zn high +125% +94%, K+ +39% +51%, compared without any NPs or treatments, Thus, can be potential option mitigate improve biochemical, strategy crops such

Language: Английский

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How Does Zinc Improve Salinity Tolerance? Mechanisms and Future Prospects

Plants, Journal Year: 2023, Volume and Issue: 12(18), P. 3207 - 3207

Published: Sept. 8, 2023

Salinity stress (SS) is a serious abiotic and major constraint to agricultural productivity across the globe. High SS negatively affects plant growth yield by altering soil physio-chemical properties physiological, biochemical, molecular processes. The application of micronutrients considered an important practice mitigate adverse effects SS. Zinc (Zn) nutrient that plays imperative role in growth, it could also help alleviate salt stress. Zn improves seed germination, seedling water uptake, relations, homeostasis, therefore improving performance saline conditions. protects photosynthetic apparatus from salinity-induced oxidative stomata movement, chlorophyll synthesis, carbon fixation, osmolytes hormone accumulation. Moreover, increases synthesis secondary metabolites expression responsive genes stimulates antioxidant activities counter toxic Therefore, better understand plants under SS, we have discussed various mechanisms which induces salinity tolerance plants. We identified diverse research gaps must be filled future programs. present review article will fill knowledge on mitigating This readers learn more about provide new suggestions how this can used develop using Zn.

Language: Английский

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Salinity Stress in Maize: Consequences, Tolerance Mechanisms, and Management Strategies

OBM Genetics, Journal Year: 2024, Volume and Issue: 08(02), P. 1 - 41

Published: April 29, 2024

Maize, along with rice and wheat, is a popular staple food crop worldwide, the most widely produced cereal crop. It versatile that may be utilized as source of raw materials for human animal fodders. Low agricultural yield rapid population expansion significantly threaten future security. Maize production hampered by biotic abiotic causes, factors being critical limitation to output worldwide. Soil salinity key factor reduces imposing negative impacts at several life cycle phases, including germination, seedling, vegetative, reproductive development. plants experience many physiological changes due osmotic stress, toxicity particular ions, nutritional imbalance induced salt stress. The degree duration growth genetic characteristics, soil conditions influence reduction. can tolerate stress involving complex mechanism changing their physiological, biochemical, metabolic activities like stomatal functioning, photosynthesis, respiration, transpiration, hormone regulation, enzymes, metabolite generation, etc. After studying tolerance mechanisms maize under integrated management techniques should developed agriculture in saline settings. Therefore, study plant responses mechanisms, strategies one imperative research fields biology, will focus on effects different stages, agronomic practices successful all over world.

Language: Английский

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