Cu-chitosan nanoparticle boost defense responses and plant growth in maize (Zea mays L.)

Choudhary, Rakesh; Kumaraswamy, R.V.; Kumari, Sarita; Sharma, Shilpa; Pal, Ajay; Raliya, Ramesh; Saharan͙, Vinod

doi:10.1038/s41598-017-08571-0

Cited by 255 publications

(98 citation statements)

References 44 publications

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“…We also found that chlorophyll content in CM334, LADO and 15080 cultivars increased when treated with specific concentrations of chitosan. Similarly, in maize, application of Cu-chitosan nanoparticle increased chlorophyll concentration and plant growth in general (Choudhary et al, 2017). Furthermore, the chloroplast is reported to be one of the major sites for chitosan action in Dendrobium Eiskul, as chloroplasts were enlarged after long-term chitosan use (Limpanavech et al, 2008).…”

Section: Discussionmentioning

confidence: 97%

Foliar application of chitosan enhances growth and modulates expression of defense genes in chilli pepper (Capsicum annuum L.)

Esyanti¹,

Dwivany²,

Mahani³

et al. 2019

Aust J Crop Sci

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Phytophthora capsici is one of the primary pathogens causing a global problem of severe losses in chilli production. The use of conventional fertilisers and fungicides to improve chilli production had been shown to elevate environmental and health issues. Hence, the foliar application of chitosan, natural deacylated chitin, to enhance growth and resistance in chilli pepper plants was investigated. The chilli plants were grown for 14 days before receiving chitosan application and 33 days before Phytophthora infection, physiological parameters were recorded during the growth period, and expression of resistance related genes was quantified at 72 hours after infection. Our results showed that physiological parameters, such as increment of height and leaves number, and chlorophyll content indicated an improved growth process in chitosan treated plants compared to the control. Plant resistance to Phytophthora infection was also investigated following chitosan application to highly (CM334), moderately (LABA), weakly (LADO) resistant and susceptible (15080) cultivars. The disease incidence and severity indices were reduced in chitosantreated plants, except in highly and moderately resistant cultivars. Further, expression was also quantified for defence-related genes, including 9-lipoxygenase (CaLOX), Ca2+-bound calmodulin 1 (CaCaM1), receptor-like cytoplasmic protein kinase (CaPIK), Pto-interacting1 (CaPTI1) and resistance gene analogue 2 (CaRGA2). The results suggest that CaLOX, CaPTI1 and CaRGA2 genes were involved in defence mechanism to Phytophthora, with increased expression during infection. However, expression levels were reduced when Phytophthora infection was coupled with foliar chitosan application, indicating that chitosan may play a direct role in decreasing the pathogenicity of Phytophthora. In conclusion, this study suggests the promising role of chitosan as an alternative to conventional fertiliser and fungicide in chilli pepper plant.

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Section: Discussionmentioning

confidence: 97%

Foliar application of chitosan enhances growth and modulates expression of defense genes in chilli pepper (Capsicum annuum L.)

Esyanti¹,

Dwivany²,

Mahani³

et al. 2019

Aust J Crop Sci

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“…Chitosan nanoparticles (prepared using sodium tripolyphosphate and loaded with Cu) act as an efficient photocatalyst by improving the photosynthetic co mplexes and nitrogen metabolism which can enhance cell growth as well as fresh and dry mass of treated maize plants (Choudhary et al, 2017). It is assumed that phytohormones, particularly cytokinins play a major role in increasing sink size by promoting cell division during the early phase of seed filling.…”

Section: Discussionmentioning

confidence: 99%

Foliar application of nano chitosan NPK fertilizer improves the yield of wheat plants grown on two different soils

Abdel-Aziz¹,

Hasaneen²,

Omer³

2018

Egypt. J. Exp. Biol. (Bot.)

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He b a M a h m o u d Mo h a m m a d A b d e l -A zi zM o h a m m e d N a g i b A b d e l -Gh a n y H a s a n e e n A ya Mo h e b O me r Foliar application of nano chitosan NPK fertilizer improves the yield of w heat plants grow n on tw o different soils ABSTRACT: Foliar application of nano chitosan nitrogen, phosphorus and potassium (NPK) fertilizer decreased the life cycle of wheat plants with the ratio of 23.5% (130 days for yield production from date of sowing). Treatment of wheat plants with nano chitosan NPK fertilizer induced signif icant increases in all yield parameters, as compared with control yield parameters of normal non -fertilized and normal fertilized NPK wheat plants. Transmission electron microscopy investigations showed that nanoparticles were present in phloem tissues whi ch mean that nanoparticles were taken up and transported through phloem route from leaves to stem down to roots. Clay-sandy soil showed better results than those obtained for clay soil. Foliar application of nano fertilizer to wheat plants proved to be important to improve yield parameters of wheat plants and shorten the life cycle of the crop. KEY WORDS:Nanofertilizers, Clay soil, Clay -sandy Soil, Uptake, W heat. CORRESPONDENCE:He

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“…This is especially relevant for copper‐based NPs which are used in many chemical and physicochemical processes, such as catalysis, electrocatalysis, and sensors . Moreover, copper‐based nanoparticles are employed in numerous industrial applications ranging from plants protection to antifouling,[4c] as well as in many biological applications as antimicrobial agents and biosensors . Because of their wide range of applications, copper‐based nanoparticles are thought to be discharged into the environment through industrial effluents and waters, therefore coming in contact with living organisms .…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Behavior of Single CuO Nanoparticles: Implications for the Assessment of their Environmental Fate

Zampardi

Thöming

Naatz

et al. 2018

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The electrochemical behavior of copper oxide nanoparticles is investigated at both the single particle and at the ensemble level in neutral aqueous solutions through the electrode-particle collision method and cyclic voltammetry, respectively. The influence of Cl and NO anions on the electrochemical processes occurring at the nanoparticles is further evaluated. The electroactivity of CuO nanoparticles is found to differ between the two types of experiments. At the single-particle scale, the reduction of the CuO nanoparticles proceeds to a higher extent in the presence of chloride ion than of nitrate ion containing solutions. However, at the multiparticle scale the CuO reduction proceeds to the same extent regardless of the type of anions present in solution. The implications for assessing realistically the environmental fate and therefore the toxicity of metal-based nanoparticles in general, and copper-based nanoparticles in particular, are discussed.

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Cu-chitosan nanoparticle boost defense responses and plant growth in maize (Zea mays L.)

Cited by 255 publications

References 44 publications

Foliar application of chitosan enhances growth and modulates expression of defense genes in chilli pepper (Capsicum annuum L.)

Foliar application of chitosan enhances growth and modulates expression of defense genes in chilli pepper (Capsicum annuum L.)

Foliar application of nano chitosan NPK fertilizer improves the yield of wheat plants grown on two different soils

Electrochemical Behavior of Single CuO Nanoparticles: Implications for the Assessment of their Environmental Fate

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