Effect of Nano-ZnO Particle Suspension on Growth of Mung (<i>Vigna radiata</i>) and Gram (<i>Cicer arietinum</i>) Seedlings Using Plant Agar Method

Mahajan, Pramod V.; Dhoke, Shailesh K.; Khanna, A. S.

doi:10.1155/2011/696535

Cited by 295 publications

(122 citation statements)

References 13 publications

(13 reference statements)

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“…Such increment in plant growth is probably due to production of higher concentration of auxin under the influence of ZnO nanoparticles (Prasad et al 2012). Previous study also highlighted on retardation in early growth of chickpea seedlings at high dose of ZnO nanoparticles and low dose of ZnO nanoparticles which is sufficient to achieve positive response (Mahajan et al 2011;Burman et al 2013). Recently, Haghighi et al (2014) reported that up to 200 ppm TiO 2 nanoparticles can improve both root and shoot lengths for Lycopersicon esculentum and Allium cepa.…”

Section: Variation Of Root and Shoot Lengthmentioning

confidence: 96%

Effects of ZnO and TiO2 nanoparticles on germination, biochemical and morphoanatomical attributes of Cicer arietinum L

Hajra

Mondal

2017

Energ. Ecol. Environ.

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With the development of nanotechnology, metal oxide nanoparticles have been applied in many industries, increasing their potential exposure level in the environment, yet their environmental safety remains poorly evaluated. Present work demonstrated the effects of ZnO and TiO 2 nanoparticles on the germination, morphoanatomical attributes and biochemistry of Cicer arietinum. The nanoparticles are used in three doses, i.e., 100, 500 and 1000 ppm along with control and each dose has three replicates. Results demonstrated that ZnO nanoparticles did not aid in the germination of seed, whereas TiO 2 nanoparticles showed positive impact on germination at 48-h observation. But at 72-h observation both the nanoparticle-treated and control seeds showed 100% germination. Morphological parameters revealed that ZnO nanoparticles have drastic negative impact on both root and shoot length, root and shoot fresh and dry biomass. On the other hand, the status of chlorophyll is almost opposite, i.e., ZnO nanoparticle-treated plants showed higher pigment content than TiO 2 nanoparticle-treated plants. From the statistical point of view, it is revealed that ZnO nanoparticle-treated plant showed significantly different results than that of TiO 2 nanoparticle-treated plants in Chl 'a' (p \ 0.001), Chl 'b' (p \ 0.001), total Chl (p \ 0.001) and carotenoid (p \ 0.001) content. Therefore, from these observations it can be concluded that ZnO nanoparticles showed positive effect on plant pigment content.Transverse sections of root clearly revealed the formation of vascular bundle, and parenchyma tissue is hampered in all the ZnO nanoparticle-treated plants. However, wellformed vascular bundles and other tissue systems are clearly visible for TiO 2 nanoparticle-treated roots. This work shows a combination of both positive and negative effects of ZnO and TiO 2 nanoparticles on a dicot plant. Present observation is very much important to understand the morphological, biochemical and anatomical alteration of plant system under the influence of ZnO and TiO 2 nanoparticles. This will help to utilize the nanoparticles in a managed way where nanoparticles with harmful effect on biological systems can be used in such a way to reduce their exposure to environment, and on the other hand, nanoparticles showing positive effect on biological systems may be used as growth enhancers or biofertilizers. Moreover, these results further strengthen our understanding of environmental safety information with respect to metal oxide nanoparticle.

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Section: Variation Of Root and Shoot Lengthmentioning

confidence: 96%

Effects of ZnO and TiO2 nanoparticles on germination, biochemical and morphoanatomical attributes of Cicer arietinum L

Hajra

Mondal

2017

Energ. Ecol. Environ.

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“…Mahajan et al studied mung and Gram seed using nano-ZnO particle by plate agar method and found that the growth of mung and gram is different at different concentrations. The seedling growth was maximum at 20 ppm for mung and at 1 ppm for gram (Mahajan et al 2011). Wang et al (2012 carried out experiment on wheat and found that MWCNT significantly promote cell elongation and increases dehydrogenase activity.…”

Section: Introductionmentioning

confidence: 94%

“…Over last few years, there have been extensive studies to understand the influence of nanomaterials on the growth of different types of plants (Khodakovskaya et al 2009;Khodakovskaya et al 2013a, b;Lu et al 2002;Cañas et al 2008;Yang et al 2006;Hong et al 2005a, b;Tan et al 2009;Yuan et al 2011;Khodakovskaya et al 2013a, b;Mahajan et al 2011;Wang et al 2012;Larue et al 2012;Miralles et al 2012;Feizi et al 2012;Tripathi et al 2011;Sonkar et al 2012). Khodakovskaya et al (2009Khodakovskaya et al ( , 2013a demonstrated that at very low doses MWCNT can penetrate the seed coat and enhance the germination of tomato plant.…”

Section: Introductionmentioning

confidence: 99%

Influence of water soluble carbon dots on the growth of wheat plant

2014

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The effect of water soluble carbon nano-dots (wsCND) on the growth of root and shoot of wheat plants under light and dark conditions has been studied. The wsCND enhances the growth of root and shoot both in light and dark conditions. The effect of wsCND on the growth of root was relatively more compared to that of shoot. Scanning electron and Fluorescence microscopic analysis show that wsCNDs enter inside the plant. Raman spectroscopy also confirms this. The present study shows that wsCNDs are non-toxic to the wheat plant and can be used to enhance the production of this cereal crop.

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“…Using the plant agar method, Mahajan et al (2011) observed that ZnO-NPs enhanced growth of mung bean and chickpea (Cicer arietinum) seedlings at low concentrations, for the mung bean seedlings, the best growth response for root (a 42% increase in length or 41% in biomass) and shoot (98% in length or 76% in biomass) was observed at a concentration of 20 mg L −1 over those of the control; for the chickpea seedlings, concentration of 1 mg L −1 caused significant increases in root (53% in length or 37% in biomass) and shoot (6% in length or 27% in biomass) growth as compared to those of the control.…”

Section: Case Studiesmentioning

confidence: 99%