Growth Stimulation in Wheat and Brinjal by Impact of Water-Soluble Carbon Nanotubes (original) (raw)
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Applications of Carbon Nanotubes in Plant Growth and Development: A Review
Research Journal of Agricultural Sciences, 2023
A subsidiary discipline that arose as a combination of biotechnology and nano-science is of "nano-biotechnology", which involves wide-ranging applications of the physicochemical properties of nanostructures in the agricultural and biomedical domains. Nanotechnology has seen numerous breakthroughs and developments in a short course of time and given rise to newer branches of scientific research. Carbon derived nanomaterials, especially nanotubes (CNTs) have arisen as extremely promising nanostructures with a wide range of applications because of their unique properties. The thoughtful employment of CNTs, in the arena of plant development has resulted in an improvement in the growth parameters of diverse groups of plants. The uptake of carbon nanotubes (CNTs) influences the output of plants, potentially through interactions between the plant DNA and CNTs. The current review suggests the possibility of employing CNTs as a growth stimulating additive when administered in low doses, along with explaining the background of their occurrence and useful attributes. The review focusses on the potential of CNTs in transforming agricultural practices in the near future and providing sustainable solutions to some of the most serious problems plaguing plant growth and development. Finally, it emphasizes on the need for a detailed understanding of the molecular mechanisms which would pave the way for the use of these materials in agriculture, emerging as a novel technology.
D. K. Tiwari et al. Nano Studies, 2013, 7, 87-96., 2013
Carbon Nanotubes (CNTs) have attracted a major interest because of their unique properties which led them in exploitation to diverse applications. Most studies of CNTs in bioscience have focused on their influences in animal and human cells but relatively scant attention has focused on the effect of CNTs in the development of agricultures; plant growth and their influences with plant cells. Recent studies show the penetration of Carbon Nanotubes with plant cells and delivery of necessary elements to plants in support of their growth. The study on the effects of nanoparticles in plant science is a newly emerging area of research and compared to plant cell walls and membranes, the penetration of nanoparticles into seeds is expected to be difficult due to the significantly thick seed coat. This study shows the effect of multi-walled carbon nanotubes (MWCNTs) in tomato seed germination and their interaction with elements. MWCNTs were used as an additional promoter mixed in a substrate medium and the medium prepared for tomato seedlings were different in each set of experiments. The experiments carried out for samples containing MWCNTs of concentrations 0, 10, 20, 40 and 60 mg/l and germination were carried out for one week, two week and four weeks. The use of MWCNTs were showed higher rate of growth in comparison to the medium containing no MWCNT and the percentage element concentrations transported during germination were analyzed by pEDXRF analytical technique. The samples assisted with MWCNT interact differently for macro/micro elements than those without MWCNT.
2018
Nanotechnology has been found to revolutionize the agriculture with new techniques to enhance the supply of nutrients to the plants. The uses of nano particles as modern agricultural practice favor the growth of plants. Carbon Nano Tubes (CNTs) have the potential to increase the germination and growth of some plants, extending the applicability of the new field of nano-biotechnology to enhance productivity. CNTs can be used for boosting up the early germination process as well as disease resistance by providing desired molecules and reducing the lifecycle of the crop. In present experiment attempts were made to find out the response of Multiwalled Carbon Nanotubes (MWCNTs) upon the vegetative growth of Triticum aestivum L. at experimental farm of Dayalbagh, Agra. Total four treatments i.e., 20 (T1), 30 (T2), 40 (T3) and 50 (T4) μgm/ml along with control (T0) were applied in triplicates. Germination percentage, plant height, no of tillers /unit area were observed at 30, 60, 90 Days a...
Journal of the science of food and agriculture, 2017
Reports of multi-walled carbon nanotubes (MWCNTs) incorporated into plants have indicated better yield and productivity, yet the phenomena need in-depth understanding especially when agricultural crops are tested. We primed wheat seeds with MWCNTs to understand the effects on germination, growth, anatomy, physiology and yield. This study, carried out in field conditions, is a step forward over the previous reports. Early germination, excessive root hair, denser stomata and larger root length result in faster growth and higher yield of wheat plants. Denser root hair facilitated the uptake of both water and essential minerals such as phosphorus (P) and potassium (K), which boosted the crop yield by significantly improving grain yield per plant from 1.53 to 2.5 g, a 63% increase. Increase in cell elongation by 80% was recorded, while xylem and phloem sizes dilated to almost 83% and 85% of control, thus enhancing their capacity to conduct water and nutrients. Augmented growth of MWCNT-p...
Interaction of carbon nanotubes with plant system: a review
Carbon Letters, 2020
Recent years have witnessed remarkable development in the field of nanotechnology and it has been affirmed that carbonbased nanomaterials have wide applications in agriculture, industrial, biomedical and environmental sectors. Due to distinctive physicochemical properties of the carbon nanotubes (CNTs), they have been extensively utilized in plant science as a growth promoter, and thus, could be a boon for biomass production of agricultural products. Studies suggest that CNTs help increase the plant's ability to absorb water and essential nutrients, thereby increasing growth. Apart from this, CNTs have been scrutinized for their utilization in genetic engineering for the delivery of genes, proteins or drugs. However, the literature discloses mixed effects of CNTs exposure on plants like in inducing oxidative stress by generating reactive oxygen species (ROS). Moreover, studies concerning CNTs interaction with plant system is at a nascent stage and needs further investigations to explore the mechanisms influencing the growth and toxicity in plants. Therefore, this review attempts to highlight the current literature on CNTs (including both single walled and multi walled) exposure on plants. It also explores unresolved challenges, as well as recommendations to ensure sustainable development of CNTs while minimizing any possible adverse health impacts.
Beneficial role of carbon nanotubes on mustard plant growth: an agricultural prospect
2011
Nowadays an increasing application of nanotechnology in different fields has arisen an extensive debate about the effect of the engineered nanoparticles on environment. Phytotoxicity of nanoparticles has come into limelight in the last few years. However, very few studies have been done so far on the beneficial aspects of nanoparticles on plants. In this article, we report the beneficial effect of multi-walled carbon nanotubes (MWCNTs) having diameter of *30 nm on Brassica juncea (mustard) seeds. Measurements of germination rate, T 50 (time taken for 50% germination), shoot and root growth have shown encouraging results using low concentration of oxidized MWCNT (OMWCNT) treated seeds as compared to non-oxidized as well as high concentration OMWCNT treated seeds. For toxicity study we measured the germination index and relative root elongation, while conductivity test and infra-red spectra were also performed to study the overall effect of oxidized and non-oxidized nanotubes on mustard seeds and seedlings.
Impacts of multi-walled carbon-nanotubes on the growth of pearl millet
Journal of applied biology and biotechnology, 2023
Nanotubes (NTs) penetrate plant cells and trigger plant growth. Recent research has shown that carbon NTs (CNTs) play an important factor in mitigating the oxidative stress and strengthening plant growth. In the present study, the effect of pearl millet seed priming with CNTs was evaluated based on seed germination, photosynthetic pigmentation, proline concentration, and Indole acetic acid (IAA) content of Pennisetum glaucum (pearl millet) during the seedling stage was investigated in this work. Different concentrations of NT's were used, including 30, 60, 90, 120, and 150 parts per million (ppm). In seed germination, 90 ppm multi-walled carbon nanotubes (MWCNTs) resulted in 80% germination. The substantial enhancements in the seedlings shoot and root length, fresh weight, and dry weight were seen at 90 ppm. With increasing MWCNTs treatment, the proline concentration continually increased. MWCNTs 90 ppm treatment decreased the quantity of malondialdehyde. At 90 ppm, the total chlorophyll content in seedling leaves was 27.74 mg/g fresh weight, which was greater than the other treatment levels. When compared to the control, the IAA concentration in the seedlings increased to 37 µg/g at 150 ppm, up from 21.5 µg/g. In conclusion, the results demonstrated that MWCNTs can promote plant growth and plant growth-promoting features to a certain extent. It may trigger special metabolic activities. As a consequence, employing CNTs as nano-fertilizers in agriculture to increase plant development may be preferable along with chemical fertilizers. However, a more in-depth examination of the mechanism of action of CNTs through seed priming is suggested, possibly using omics sciences.
Journal of Plant Protection Research, 2017
Carbon nanotubes act as regulators of plant germination and growth and are able to change the morphology and physiology of plant cells. The castor plant (Ricinus communis L.) belongs to the Euphorbiaceae family and is a very important medicinal plant. The aim of this study was to investigate the effect of 10 different concentrations of multi-walled carbon nanotubes (MWCNTs) (2, 5, 10, 20, 50, 75, 100, 125, 250 and 500 μg · ml−1) alongside the control under laboratory conditions on the germination and growth of castor seedlings. The results demonstrated that the maximum percentage of germination (96.7%) and relative germination percentage (100%) were found in the concentrations of 50 and 100 μg · ml−1, respectively, and the highest germination rate (53.3%) and the mean germination time (4.6 days) was seen in the concentration of 75 μg · ml−1. However, no statistically significant differences were found between the different concentrations in any of the germination factors. In the con...