Das, Ratul Kumar; Brar, Satinder Kaur et Verma, Mausam P. (2015). Effects of Different Metallic Nanoparticles on Germination and Morphology of the Fungus Rhizopus oryzae 1526 and Changes in the Production of Fumaric Acid. BioNanoScience , vol. 5 , nº 4. pp. 217-226. DOI: 10.1007/s12668-015-0183-8.
Ce document n'est pas hébergé sur EspaceINRS.Résumé
La transcription des symboles et des caractères spéciaux utilisés dans la version originale de ce résumé n’a pas été possible en raison de limitations techniques. La version correcte de ce résumé peut être lue en PDF. The present study was undertaken to investigate the impact of different concentrations (200–1000 μg/mL) of micro- and nanoparticles of ZnO, Fe3O4 and MnO2 on spore germination and morphology of the fumaric acid (FA)-producing fungus Rhizopus oryzae 1526. Production profile of FA was also investigated as a response to micro- and nanoforms of these compounds. Glucose-basic salts media was used for the growth and FA production. Different incubation conditions were applied for growth (30 °C, 200 rpm and 24 h) and FA production (30 °C, 200 rpm and 72 h). Control experiments were designed without the micro- and nanoforms of the inorganic compounds. At 200 μg/mL of micro- and nanoparticles of ZnO, Fe3O4 and MnO2, percent of spore germination obtained were almost same (96–98 %) as control experiments, except microparticles of MnO2 (85 %). Higher concentrations (>200 μg/mL) of the micro- and nanoparticles caused inhibition in spore germination. The fungus exhibited changes in the pellet size and morphology at different concentrations of the particles. FA production was also influenced by micro- and nanoparticles of ZnO, Fe3O4 and MnO2. Overall, Fe3O4 was found to be the most biocompatible in both micro- and nanoform. Findings of the present research work suggested that the three essential cations (Zn2+, Fe2+/3+ and Mn2+) can have different impacts on the fungus when applied as micro- and nanoformulations.
| Type de document: | Article |
|---|---|
| Mots-clés libres: | Rhizopus oryzae 1526; microparticles; nanoparticles; germination; morphology; fumaric acid |
| Centre: | Centre Eau Terre Environnement |
| Date de dépôt: | 19 avr. 2018 19:53 |
| Dernière modification: | 08 juin 2023 18:15 |
| URI: | https://espace.inrs.ca/id/eprint/3830 |
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