Isolation and characterization of multi-potentialRhizobiumstrain ND2 and its plant growth-promoting activities under Cr(VI) stress
| Autor: | Kumar Sathya, Chinnannan Karthik, Mohammad Oves, Padikasan Indra Arulselvi, Vijayan Sri Ramkumar |
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| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Root nodule biology Strain (chemistry) Soil Science chemistry.chemical_element biology.organism_classification Soil contamination 03 medical and health sciences Ammonia chemistry.chemical_compound Chromium 030104 developmental biology chemistry Catalase Botany biology.protein Rhizobium Food science Phaseolus Agronomy and Crop Science |
| Zdroj: | Archives of Agronomy and Soil Science. 63:1058-1069 |
| ISSN: | 1476-3567 0365-0340 |
| DOI: | 10.1080/03650340.2016.1261116 |
| Popis: | Soil contaminated by chromium (Cr) is a major concern for sustainable agriculture. Considering this as a basis, the present study was designed to isolate Cr(VI)-reducing and plant growth-promoting bacterial strain from contaminated sampling sources. In this study, Rhizobium strain ND2 was isolated from the root nodules of Phaseolus vulgaris grown in leather industrial effluent contaminated soil. The strain ND2 exhibited strong resistance to different heavy metals and reduced 30 and 50 µg ml−1 concentrations of Cr(VI) completely after 80 and 120 h of incubation, respectively, as well as chromium adsorption and immobilization were confirmed by scanning electron microscopic equipped with energy X-ray spectroscopy. In addition, the strain produced 21.73 and 36.86 µg ml−1 of indole-3-acetic acid at 50 and 100 µg ml−1 of L-tryptophan supplimentations, respectively. Strain ND2 positively affected the exo-polysaccharide, ammonia, protease and catalase production and stimulated root length of various test ... |
| Databáze: | OpenAIRE |
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