title: Biogenic green synthesis of monodispersed gum kondagogu (Cochlospermum gossypium) iron nanocomposite material and its application in germination and growth of mung bean (Vigna radiata) as a plant model.
abstract: An eco-friendly green and one-pot synthesis of highly monodispersed iron (Fe) nanoparticles (NPs) by using a natural biopolymer, gum kondagogu (GK) as reducing and capping agent is proposed. The NPs synthesised were characterised by ultra-violet-visible spectroscopy, transmission electron microscopy, scanning electron microscopy and X-ray diffraction. As the concentration of gum and time increases, the intensity of NPs formation increased. The NPs were highly monodispersed with uniform circular shapes of 2-6 nm in size. The formed NPs were crystalline in nature which was confirmed by diffraction analysis. The conversion ratio of Fe ionic form to NPs was 21% which was quantified by inductively coupled plasma mass spectroscopy (ICP-MS). Fe is essential for plant growth and development. A study was conducted to examine the effect of these NPs on the growth of mung bean (Vigna radiata). The radical length and biomass was increased in seeds exposed to Fe NPs than the ions. The uptake of Fe NPs by the sprouts was also quantified by ICP-MS, in which Fe was more in mung bean seeds exposed to NPs. The α-amylase activity was increased in the seeds exposed to NPs. The observed increase in the biomass by Fe NPs and seed germination may facilitate its application in the agriculture as an important cost-effective method for plant growth.
authors.affiliation: Department of Biochemistry, University College of Science, Osmania University, Hyderabad 500 007, Telangana, India.
authors.forename: Dugyala
authors.initials: D
authors.lastname: Raju
authors.affiliation: Plant Tissue Culture Division, CSIR-National Chemical Laboratory, Pune 411008, Maharashtra, India.
authors.forename: Urmil J
authors.initials: UJ
authors.lastname: Mehta
authors.affiliation: Department of Biochemistry, University College of Science, Osmania University, Hyderabad 500 007, Telangana, India. sashi_rao@yahoo.com.
authors.forename: Sashidhar Rao
authors.initials: SR
authors.lastname: Beedu
mesh_terms: D031212:Bixaceae / Q000737:chemistry*; D007887:Fabaceae / Q000187:drug effects; D018525:Germination / Q000187:drug effects; D055772:Green Chemistry Technology; D007501:Iron / Q000737:chemistry* / Q000494:pharmacology; D008954:Models, Biological; D053761:Nanocomposites / Q000737:chemistry*; D053149:Plant Gums / Q000737:chemistry* / Q000494:pharmacology*; D010940:Plant Proteins / Q000032:analysis / Q000378:metabolism; D000516:alpha-Amylases / Q000032:analysis / Q000378:metabolism
chemical_list: D053149:Plant Gums; D010940:Plant Proteins; D007501:Iron; D000516:alpha-Amylases