Bacillus megaterium-Mediated Synthesis of Selenium Nanoparticles and Their Antifungal Activity against Rhizoctonia solani in Faba Bean Plants

• DOI: 10.3390/jof7030195
• Publication Date: 2021-03-09T17:08:01Z
• Authors: Amr H. Hashem; Amer M. Abdelaziz; Ahmed A. Askar; Hossam M. Fouda; Ahmed M. A. Khalil; Kamel A. Abd-Elsalam; Mona M. Khaleil
• Keywords: Bacillus megaterium; Rhizoctonia

Rhizoctonia root-rot disease causes severe economic losses in a wide range of crops, including Vicia faba worldwide. Currently, biosynthesized nanoparticles have become super-growth promoters as well antifungal agents. In this study, selenium (Se-NPs) been examined growth agents against solani RCMB 031001 vitro and vivo. Se-NPs were synthesized biologically by Bacillus megaterium ATCC 55000 characterized using UV-Vis spectroscopy, XRD, dynamic light scattering (DLS), transmission electron microscopy (TEM) imaging. TEM DLS images showed that are mono-dispersed spheres with mean diameter 41.2 nm. improved healthy cv. Giza 716 seed germination, morphological, metabolic indicators, yield. Furthermore, exhibited influential activity R. Results revealed minimum inhibition fungicidal concentrations 0.0625 1 mM, respectively. Moreover, able to decrease the pre-and post-emergence damping-off minimize severity root rot disease. The most effective treatment method is found when soaking spraying used each other followed then individually. Likewise, improve morphological indicators yield significantly compared infected control. conclusion, B. promising agent diseases plant inducer.