Diminution of arsenic accumulation in rice seedlings co-cultured with Anabaena sp.: Modulation in the expression of lower silicon transporters, two nitrogen dependent genes and lowering of antioxidants activity
| Autor: | Ambedkar Gautam, Navin Kumar, Ruma Ranjan, Arvind Kumar Dubey, Shyam Narain Pandey, Shekhar Mallick |
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| Rok vydání: | 2017 |
| Předmět: |
inorganic chemicals
0106 biological sciences 0301 basic medicine Silicon Antioxidant Nitrogen Health Toxicology and Mutagenesis medicine.medical_treatment Oryza 01 natural sciences Antioxidants Arsenic 03 medical and health sciences Gene Expression Regulation Plant medicine Diminution Oryza sativa biology Anabaena Chemistry Public Health Environmental and Occupational Health food and beverages Membrane Transport Proteins General Medicine biology.organism_classification APX Pollution 030104 developmental biology Biochemistry Seedlings Shoot Toxicity bacteria 010606 plant biology & botany |
| Zdroj: | Ecotoxicology and environmental safety. 151 |
| ISSN: | 1090-2414 |
| Popis: | The present study was intended to investigate the role of algae, Anabaena sp. in the amelioration of As toxicity, when co-cultured with rice seedlings. The reduction of growth in rice seedlings against As(III) and As(V) was recovered with Anabaena sp. The Anabaena sp. also reduced the accumulation of As, where it was more efficient against 60µM As(III) (49%) than As(V) (23%) in rice shoot. Similarly, with reduction of As accumulation, lower silicon transporters (Lsi-1 and Lsi-2) was found to be suppressed against As treatments. However, the expression of two nitrogen dependent genes i.e., NR and SAMT were found to be enhanced with the Anabaena sp. Likewise, the activity of antioxidant enzyme, GST, was enhanced, whereas, the activity of other enzymes such as SOD, APX, GPX, GR and DHAR were decreased with As+Algae combinations. Overall, the result suggested that the Anabaena sp. reduces As accumulation, modulates gene expressions and antioxidants to ameliorate the As toxicity in Oryza sativa L. |
| Databáze: | OpenAIRE |
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