Biogenic copper nanoparticles produced by using the Klebsiella pneumoniae strain NST2 curtailed salt stress effects in maize by modulating the cellular oxidative repair mechanisms

Noman, Muhammad; Ahmed, Temoor; Shahid, Muhammad; Niazi, Muhammad Bilal Khan; Qasim, Muhammad; Kouadrı, Fayza; Abdulmajeed, Awatif M.; Alghanem, Suliman Mohammed; Ahmad, Naveed; Zafar, Mohsin; Ali, Shehbaz

doi:10.1016/j.ecoenv.2021.112264

Cited by 40 publications

(11 citation statements)

References 46 publications

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“…Suspensions of bio-MnNPs (25, 50, and 100 µg mL −1 ) were prepared in sterile ddH 2 O and applied to watermelon plants (50 mL per pot) through soil drenching to the final concentration of bio-MnNPs up to 25, 50, and 100 mg kg −1 of potting mix per pot as described previously. [15,74] Plants treated with sterile ddH 2 O and bulk Mn(II) (100 µg mL −1 ) were used as controls. The experiments were conducted in a completely randomized design, and the treated plants were allowed to grow under an 8/16 h dark/light cycle at 22 °C and 65% relative humidity for 15 days.…”

Section: Methodsmentioning

confidence: 99%

Bio‐Functionalized Manganese Nanoparticles Suppress Fusarium Wilt in Watermelon (Citrullus lanatus L.) by Infection Disruption, Host Defense Response Potentiation, and Soil Microbial Community Modulation

Noman

Ijaz

Shahid

et al. 2022

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The use of nanofabricated materials is being explored for the potential in crop disease management. Chemically synthesized micronutrient nanoparticles (NPs) have been shown to reduce crop diseases; however, the potential of biogenic manganese NPs (bio‐MnNPs) in disease control is unknown. Here, the potential and mechanism of bio‐MnNPs in suppression of watermelon Fusarium wilt, caused by Fusarium oxysporum f. sp. niveum (Fon) are reported. Bio‐MnNPs are synthesized by cell‐free cultural filtrate of a waterrmelon rhizosphere bacterial strain Bacillus megaterium NOM14, and are found spherical in shape with a size range of 27.0–65.7 nm. Application of bio‐MnNPs at 100 µg mL−1 increases Mn content in watermelon roots/shoots and improves growth performance through enhancing multiple physiological processes, including antioxidative capacity. Bio‐MnNPs at 100 µg mL−1 suppress Fusarium wilt through inhibiting colonization and invasive growth of Fon in watermelon roots/stems, and inhibit Fon vegetative growth, conidiation, conidial morphology, and cellular integrity. Bio‐MnNPs potentiate watermelon systemic acquired resistance by triggering the salicylic acid signaling upon Fon infection, and reshape the soil microbial community by improving fungal diversity. These findings demonstrate that bio‐MnNPs suppress watermelon Fusarium wilt by multiple ex planta and in planta mechanisms, and offer a promising nano‐enabled strategy for the sustainable management of crop diseases.

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Section: Methodsmentioning

confidence: 99%

Bio‐Functionalized Manganese Nanoparticles Suppress Fusarium Wilt in Watermelon (Citrullus lanatus L.) by Infection Disruption, Host Defense Response Potentiation, and Soil Microbial Community Modulation

Noman

Ijaz

Shahid

et al. 2022

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“…For instance, biosynthesized AgNPs enhanced plant growth and development by improving seed germination, growth parameters, water content, photosynthetic pigments, osmolytes, and antioxidant pigments [ 112 ]. Similarly, Noman et al [ 113 ] reported biogenic CuNPs alleviated salt stress in maize by modulating cellular oxidative repair mechanisms. Del Buono et al [ 44 ] also described biogenic ZnNPs synthesized from Lemna minor (duckweed) enhanced the physiochemical and biochemical traits in maize.…”

Section: Biogenic Nanoscale Materials As a Nano-enabled Tool For Stre...mentioning

confidence: 99%

“…Biogenic copper nanoparticles CuNPs (22.44–44.26 nm) synthesized from Klebsiella pneumoniae were applied (100 mg/kg) on maize under a saline-treated potted condition, and there was an increase in plant morphological parameters, namely, root length (43.52%), shoot length (44.06%), fresh weight (46.05%), and dry weight (51.82%). Improvement in the antioxidant activity along with the reduction in ionic contents, i.e., Na + and Cl − , was observed, indicating the role of nanomaterial in the alleviation of abiotic stress [ 113 ]. AgNPs of spherical and semispherical shapes and with 15–30 nm size distribution were synthesized by employing Capparis spinosa as the source of reducing and stabilizing agents.…”

Section: Biogenic Nanoscale Materials As a Nano-enabled Tool For Stre...mentioning

confidence: 99%

A Review of Sustainable Use of Biogenic Nanoscale Agro-Materials to Enhance Stress Tolerance and Nutritional Value of Plants

Giri

Shukla

Tripathi

et al. 2023

Plants

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Climate change is more likely to have a detrimental effect on the world’s productive assets. Several undesirable conditions and practices, including extreme temperature, drought, and uncontrolled use of agrochemicals, result in stresses that strain agriculture. In addition, nutritional inadequacies in food crops are wreaking havoc on human health, especially in rural regions of less developed countries. This could be because plants are unable to absorb the nutrients in conventional fertilizers, or these fertilizers have an inappropriate or unbalanced nutrient composition. Chemical fertilizers have been used for centuries and have considerably increased crop yields. However, they also disrupt soil quality and structure, eventually impacting the entire ecosystem. To address the situation, it is necessary to develop advanced materials that can release nutrients to targeted points in the plant-soil environment or appropriate receptors on the leaf in the case of foliar applications. Recently, nanotechnology-based interventions have been strongly encouraged to meet the world’s growing food demand and to promote food security in an environmentally friendly manner. Biological approaches for the synthesis of nanoscale agro-materials have become a promising area of research, with a wide range of product types such as nanopesticides, nanoinsecticides, nanoherbicides, nanobactericides/fungicides, bio-conjugated nanocomplexes, and nanoemulsions emerging therefrom. These materials are more sustainable and target-oriented than conventional agrochemicals. In this paper, we reviewed the literature on major abiotic and biotic stresses that are detrimental to plant growth and productivity. We comprehensively discussed the different forms of nanoscale agro-materials and provided an overview of biological approaches in nano-enabled strategies that can efficiently alleviate plant biotic and abiotic stresses while potentially enhancing the nutritional values of plants.

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“…Importantly, we previously reported that alcoholic, carboxylic, and halo groups were important to the stability and functionalization of bio-CuNPs. [33] The crystalline features of bio-CuNPs were obtained through X-ray diffraction (XRD) spectra. Different spectral peaks were observed at 45.16°, 56.78°, and 75.47° at 2θ degree, which were indexed to standard planes of face-centered cubic crystals of Cu (i.e., (311), (200), and (220)) (JCPDS card no.…”

Section: Physio-chemical Characteristics Of Bio-cunpsmentioning

confidence: 99%

Bacillus altitudinis‐Stabilized Multifarious Copper Nanoparticles Prevent Bacterial Fruit Blotch in Watermelon (Citrullus lanatus L.): Direct Pathogen Inhibition, In Planta Particles Accumulation, and Host Stomatal Immunity Modulation

Noman

White

Nazir

et al. 2023

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The nano‐enabled crop protecting agents have been emerging as a cost‐effective, eco‐friendly, and sustainable alternative to conventional chemical pesticides. Here, the antibacterial activity and disease‐suppressive potential of biogenic copper nanoparticles (bio‐CuNPs) against bacterial fruit blotch (BFB), caused by Acidovorax citrulli (Ac), in watermelon (Citrullus lanatus L.) is discussed. CuNPs are extracellularly biosynthesized using a locally isolated bacterial strain Bacillus altitudinis WM‐2/2, and have spherical shapes of 29.11–78.56 nm. Various metabolites, such as alcoholic compounds, carboxylic acids, alkenes, aromatic amines, and halo compounds, stabilize bio‐CuNPs. Foliar application of bio‐CuNPs increases the Cu accumulation in shoots/roots (66%/27%), and promotes the growth performance of watermelon plants by improving fresh/dry weight (36%/39%), through triggering various imperative physiological and biochemical processes. Importantly, bio‐CuNPs at 100 µg mL−1 significantly suppress watermelon BFB through balancing reactive oxygen species system, improving photosynthesis capacity, and modulating stomatal immunity. Bio‐CuNPs show obvious antibacterial activity against Ac by inducing oxidative stress, biofilm inhibition, and cellular integrity disruption. These findings demonstrate that bio‐CuNPs can suppress watermelon BFB through direct antibacterial activity and induction of active immune response in watermelon plants, and highlight the value of this approach as a powerful tool to increase agricultural production and alleviate food insecurity.

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Biogenic copper nanoparticles produced by using the Klebsiella pneumoniae strain NST2 curtailed salt stress effects in maize by modulating the cellular oxidative repair mechanisms

Cited by 40 publications

References 46 publications

Bio‐Functionalized Manganese Nanoparticles Suppress Fusarium Wilt in Watermelon (Citrullus lanatus L.) by Infection Disruption, Host Defense Response Potentiation, and Soil Microbial Community Modulation

Bio‐Functionalized Manganese Nanoparticles Suppress Fusarium Wilt in Watermelon (Citrullus lanatus L.) by Infection Disruption, Host Defense Response Potentiation, and Soil Microbial Community Modulation

A Review of Sustainable Use of Biogenic Nanoscale Agro-Materials to Enhance Stress Tolerance and Nutritional Value of Plants

Bacillus altitudinis‐Stabilized Multifarious Copper Nanoparticles Prevent Bacterial Fruit Blotch in Watermelon (Citrullus lanatus L.): Direct Pathogen Inhibition, In Planta Particles Accumulation, and Host Stomatal Immunity Modulation

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