Journal
CROP PROTECTION
Volume 30, Issue 3, Pages 265-271Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.cropro.2010.12.010
Keywords
AM fungi; Antioxidant enzymes; Chlorophyll; Growth; Proline; Salt stress
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Funding
- UGC New Delhi
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Arbuscular mycorrhizal (AM) fungi alleviating the adverse salt effects on growth was tested in bajra (Pennisetum glaucum). Towards this objective we analyzed the photosynthetic activity, proline, phosphatase activity and various antioxidant enzymes such as peroxidase, catalase and superoxide dismutase at 0, 100, 200 and 300 mM salinity levels in AM inoculated and non inoculated bajra plants. Total chlorophyll content was significantly higher in moderate salinity condition in AM fungus (Glomus fasciculatum) inoculated plants, which lead to increase in growth and nutrient uptake capacity of mycorrhizal plants. Antioxidant activity was either increased or decreased due to responses to different salinity stress conditions. Praline accumulation was induced by salt and it was more in shoot of non-AM inoculated plants, but in roots praline accumulation was higher in AM plants at all levels of salinity. This work suggests that the AM fungus helps bajra plants to perform better under moderate salinity levels by enhancing the antioxidant activity and praline accumulation as compared to non-mycorrhizal plants. (c) 2010 Elsevier Ltd. All rights reserved.
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