Induction of Stress Tolerance in Crops by Applying Nanomaterials

González‐García, Yolanda; González-Moscoso, Magín; Hernández-Hernández, Hipólito; Méndez-López, Alonso; Juárez‐Maldonado, Antonio

doi:10.1002/9781119745884.ch8

Cited by 7 publications

(6 citation statements)

References 250 publications

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“…Also, the obtained results illustrated that in A. solani infection plants, the content of carotenoids was increased in response to the treatment with SiO 2 -NPs. This increase could be attributed to improved number of leaves, stomata conductance, transpiration rate and/or cell size and number [ 95 , 96 , 97 ]. This improvement in the level of photosynthetic pigments may be explained by the fact that SiO 2 -NPs have been described as plant immune-stimulants [ 94 , 98 ].…”

Section: Resultsmentioning

confidence: 99%

Mycosynthesis of Silica Nanoparticles Using Aspergillus niger: Control of Alternaria solani Causing Early Blight Disease, Induction of Innate Immunity and Reducing of Oxidative Stress in Eggplant

et al. 2022

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The threats to the life and production of crops are exacerbated by climate change and the misuse of chemical pesticides. This study was designed to evaluate the effectiveness of biosynthesized silica nanoparticles (SiO2-NPs) as an alternative to pesticides against early blight disease of eggplant. Antifungal activity, disease index, photosynthetic pigments, osmolytes, oxidative stress, antioxidant enzymes activities were tested for potential tolerance of eggplant infected with Alternaria solani. Silica nanoparticles were successfully biosynthesized using Aspergillus niger through green and ecofriendly method. Results revealed that SiO2-NPs exhibited promising antifungal activity against A. solani where MIC was 62.5 µg/mL, and inhibition growth at concentration 1000 µg/mL recorded 87.8%. The disease Index (DI) as a result of infection with A. solani reached 82.5%, and as a result, a severe decrease in stem and root length and number of leaves occurred, which led to a sharp decrease in the photosynthetic pigments. However, contents of free proline, total phenol and antioxidant enzymes activity were increased in infected plants. On the other hand, the treatment with SiO2-NPs 100 ppm led to a great reduction in the disease Index (DI) by 25% and a high protection rate by 69.69%. A clear improvement in growth characteristics and a high content of chlorophyll and total carotenoids was also observed in the plants as a result of treatment with silica nanoparticles in (healthy and infected) plants. Interestingly, the noticeable rise in the content of infected and healthy plants of proline and phenols and an increase in the activity of super oxide dismutase (SOD) and polyphenol oxidase (PPO). It could be suggested that foliar application of SiO2-NPs especially 100 ppm could be commercially used as antifungal and strong inducer of plant physiological immunity against early blight disease.

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Section: Resultsmentioning

confidence: 99%

Mycosynthesis of Silica Nanoparticles Using Aspergillus niger: Control of Alternaria solani Causing Early Blight Disease, Induction of Innate Immunity and Reducing of Oxidative Stress in Eggplant

et al. 2022

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“…In this study, we observed that TiO 2 -NPs improved plant tolerance mechanisms by upregulating antioxidant activity and modulating osmolyte levels in cells by increasing compatible organic osmolytes such as proline and sugar (Table 2 ), which are involved in stabilizing the cell wall and scavenging ROS 38 . Electrical leakage (EL) can be accelerated by a rise in ROS because it leads to increased cell destruction 38 , 61 . Our results indicate the highest EL was observed in SDI treatment without TiO 2 -NPs, and TiO 2 -NPs foliar application reduced EL (Table 2 ).…”

Section: Discussionmentioning

confidence: 99%

Deficit irrigation strategies (PRD, SDI) and titanium nanoparticles improve water use efficiency and flower quality in greenhouse-grown cut roses

Alavi,

Kamali,

Selahvarzi

et al. 2023

Sci Rep

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This study explored the use of deficit irrigation techniques for water management in the hydroponic greenhouse cultivation of cut roses. A factorial experiment was conducted using three irrigation treatments: full irrigation (FI), partial root drying (PRD), and sustained deficit irrigation (SDI), and three doses of titanium dioxide nanoparticle foliar application (0, 15, and 30 ppm) as stress alleviation. Results showed that drought stress increased biochemical parameters such as the plants' proline and total phenol content. Compared to SDI treatment, the PRD treatments have an increase in flower number by 40%. The PRD strategy has positive effects on drought tolerance by increasing osmotic and elastic adjustment. Therefore, higher relative water content and longer root length in PRD treatments were observed. Thus, Biomass water use efficiency significantly increased in PRD treatments compared to others. In the PRD treatment, yield WUE increases by 26% and 61% compared to FI and SDI, respectively. The results showed TiO2-NPs positively affected mitigating and even improving some traits in drought stress conditions. These results suggest the superiority of the PRD strategy, which improves growth characteristics and water use efficiency, leading to increased sustainability, reduced environmental impact of greenhouse toxic wastewater, and total profitability of the greenhouse.

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“…NPs can quickly interact with plants and stimulate molecular mechanisms [ 13 ]. In addition, the NMs function in a dual manner, first protecting against ROS while simultaneously acting as inducers of oxidative stress, which in turn causes the activation of the antioxidant defense system in plants [ 14 ]. NPs enable plants to adjust to stressful conditions more effectively and produce more yields by reducing the toxic effects of abiotic stress and by influencing various morphological, anatomical, physiological, biochemical and molecular attributes of plants.…”

Section: Response Of Plants To Nanoparticles Under Abiotic Stressmentioning

confidence: 99%

“…Given that plants are considered the living kingdom’s producers, conditions that have an adverse effect on plants raise concerns regarding food security [ 13 ]. Abiotic stressors have a significant role in yield losses, accounting for up to 50% of losses in the yield of major crops [ 14 ]. In this context, scientists are concentrating on research into approaches such as genetic engineering and plant breeding to reduce abiotic stress.…”

Section: Introductionmentioning

confidence: 99%

The Role of Nanoparticles in Response of Plants to Abiotic Stress at Physiological, Biochemical, and Molecular Levels

Al-Khayri

Rashmi

Ulhas

et al. 2023

Plants

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In recent years, the global agricultural system has been unfavorably impacted by adverse environmental changes. These changes in the climate, in turn, have altered the abiotic conditions of plants, affecting plant growth, physiology and production. Abiotic stress in plants is one of the main obstacles to global agricultural production and food security. Therefore, there is a need for the development of novel approaches to overcome these problems and achieve sustainability. Nanotechnology has emerged as one such novel approach to improve crop production, through the utilization of nanoscale products, such as nanofertilizer, nanofungicides, nanoherbicides and nanopesticides. Their ability to cross cellular barriers makes nanoparticles suitable for their application in agriculture. Since they are easily soluble, smaller, and effective for uptake by plants, nanoparticles are widely used as a modern agricultural tool. The implementation of nanoparticles has been found to be effective in improving the qualitative and quantitative aspects of crop production under various biotic and abiotic stress conditions. This review discusses various abiotic stresses to which plants are susceptible and highlights the importance of the application of nanoparticles in combating abiotic stress, in addition to the major physiological, biochemical and molecular-induced changes that can help plants tolerate stress conditions. It also addresses the potential environmental and health impacts as a result of the extensive use of nanoparticles.

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Induction of Stress Tolerance in Crops by Applying Nanomaterials

Cited by 7 publications

References 250 publications

Mycosynthesis of Silica Nanoparticles Using Aspergillus niger: Control of Alternaria solani Causing Early Blight Disease, Induction of Innate Immunity and Reducing of Oxidative Stress in Eggplant

Mycosynthesis of Silica Nanoparticles Using Aspergillus niger: Control of Alternaria solani Causing Early Blight Disease, Induction of Innate Immunity and Reducing of Oxidative Stress in Eggplant

Deficit irrigation strategies (PRD, SDI) and titanium nanoparticles improve water use efficiency and flower quality in greenhouse-grown cut roses

The Role of Nanoparticles in Response of Plants to Abiotic Stress at Physiological, Biochemical, and Molecular Levels

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