Chromium Resistant Bacteria: Impact on Plant Growth in Soil Microcosm
| Autor: | Nezha Tahri Joutey, Hanane Sayel, Naïma El Ghachtouli, Wifak Bahafid |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Microcosms
Chromate conversion coating lcsh:Environmental protection chemistry.chemical_element plant General Medicine Biology Soil contamination Microbiology soil Chromium Horticulture Bioremediation Enterobacter amnigenus chemistry Cr(VI) reduction Germination bioremediation Shoot lcsh:TD169-171.8 Microcosm bacteria |
| Zdroj: | Archives of Environmental Protection, Vol 40, Iss 2, Pp 81-89 (2014) |
| ISSN: | 2083-4810 |
| Popis: | Three chromium resistant bacterial strains, Pseudomonas fluorescens PF28, Enterobacter amnigenus EA31 and Enterococcus gallinarum S34 isolated from tannery waste contaminated soil were used in this study. All strains could resist a high concentration of K2Cr2O7 that is up to 300 mg/L. The effect of these strains on clover plants (Trifolium campestre) in the presence of two chromium salts CrCl3 and K2Cr2O7 was studied in soil microcosm. Application of chromium salts adversely affected seed germination, root and shoot length. Bacterial inoculation improved the growth parameters under chromate stress when compared with non inoculated respective controls. There was observed more than 50% reduction of Cr(VI) in inoculated soil microcosms, as compared to the uninoculated soil under the same conditions. The results obtained in this study are significant for the bioremediation of chromate pollution. |
| Databáze: | OpenAIRE |
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