Growth promotional activity of green synthesized nanoparticles on Phyllosphere and Rhizosphere Microflora of Capsicum baccatum , Rosa species and Murraya koenigii
Keywords:
Zinc nanoparticles, Iron nanoparticles, Bacillus sps, PhyllosphereAbstract
Nanoparticle synthesis is identified to occur in nature, in presence of agents like bacteria, fungi, algae and other biologically derived substances that acts as a precursor. These naturally formed nanoparticles could establish in soil and on plants that may result in change of the characteristic features of plant physiology or morphology. Among the various metal nanoparticles, Zinc oxide and Iron nanoparticles have been found to have a profound effect on the plants since their metallic ions act as essential nutrients. These nanoparticles were proved to have significance in promotion of seed germination, impact on the shoot, root and foliage development due to enhanced absorption of these elements. One of the most important requisite for a growing plant is presence of the plant growth promoting rhizobacteria in the soil and surface of plants. The plant growth and susceptibility to pathogens is greatly influenced by microorganisms established on plant parts and rhizosphere. Many plants, with the antagonistic feature of their rhizobacteria against plant pathogens, remain resistant to certain diseases. Hence, one of the reasons for the growth promoting activity of nanomaterials could be due to their influence on the microorganisms. Therefore the present study was carried out to evaluate the effect of zinc oxide and iron oxide nanoparticles on the rhizobacteria and phyllosphere microorganisms of selected plants. Treatment of the Zinc oxide and Iron oxide nanoparticles to the rhizosphere and leaves of Capsicum baccatum (Chilli), Rosa species (Rose) and Murraya koenigii (curry) and Solanum tuberosum has indicated a change in the phyllosphere and rhizosphere characteristics and the bacterial consortium that naturally developed on it. A significant change in the phyllosphere and rhizophere bacteria indicated a profound effect of nanoparticles .
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