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Mitigation Of Adverse Effects Of Salinity Stress In Plants Colonized By Arbuscular Mycorrhizal Fungi | 4561
ISSN: 2157-7625

Journal of Ecosystem & Ecography
Open Access

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Mitigation of adverse effects of salinity stress in plants colonized by arbuscular mycorrhizal fungi

Biodiversity & Sustainable Energy Development-2012

Bhoopander Giri

ScientificTracks Abstracts: J Ecosyst Ecogr

DOI: 10.4172/2157-7625.S1.002

Arbuscular mycorrhizal (AM) fungi are naturally prevalent in a wide range of habitats, including salt stress soils. AM fungi develop symbiotic relationship with the roots of their host plants. They play a vital role in maintaining plant water relations, acquiring mineral nutrients, improving the soil quality and the health and productivity of plant under salinity stress. The experiments were conducted to understand the influence of arbuscular mycorrhizal fungi on physiological parameters of different plants under salt stress conditions imposed by different concentrations of NaCl. The study revealed that mycorrhizal fungi diminish injurious effects of salinity stress on plant growth and development. The greater nutrient acquisition in mycorrhizal plants may be resulted in improved growth and biomass production as compared to nonmycorrhizal plants. In mycorrhizal plants, the concentrations of micro-nutrients particularly Cu, Fe, Zn decreased as the levels of salinity increased, however, at each salinity level, mycorrhizal plants had higher concentrations of these micro-nutrients than nonmycorrhizal plants. Mycorrhizal plants accumulated more chlorophylls and carotenoids content and maintained favorable ionic balance in the plant tissues than that of the non-mycorrhizal plants. The present study showed that AM fungi prevents excess uptake of Na + in root or shoot tissues as the levels of salinity increase in soil. Higher accumulation of osmo-protectants, maintenance of membrane integrity and osmotic adjustment, and prevention of oxidative damage in mycorrhizal plants substantiate the fact that AM fungi reduce adverse effects of salinity stress on plant growth and development under saline conditions. Author acknowledges financial assistance given by UGC, New Delhi for this work
Bhoopander Giri has completed his Ph.D on mycorrhization of stressed habitats. He is Assistant Professor, at the Department of Botany, SSN College, University of Delhi, Delhi. He is a recipient of CSIR Research Associate ship and DST Young Scientist fellowship. Dr Giri has been presented research papers in several national and international conferences held in Switzerland, Canada, Poland and New Delhi. He has received best paper presentation award during 98 th Indian Science Congress, SRM University, Chennai. He has published more than 25 papers in international peer- reviewed journals and books. He is member of many prestigious academic societies, such as Indian Science Congress, Association of Microbiologists of India (AMI), Indian Society of Mycology and Plant Pathology, Botanical Society of America, International Symbiosis Society, International Society of Applied Life Sciences, Turkey. Besides, he is member of reviewer forum of several prestigious international journals such as Experimental and Environmental Botany, Elsevier Science, Planta, Springer Verlag, Agroforestry System, Springer Verlag, Colloids and Surfaces B: Biointerfaces, Elsevier Science, Scientia Horticulture, Elsevier Science, Acta Physiologia Plantarum, Springer Verlag, Spanish Journal of Agricultural Research. Journal of Experimental Botany, Oxford University Press, Institute for Life Long Learning (ILLL), University of Delhi (e-content) and UGC-CEC (pre- view subject expert). He is presently involved in understanding salt tolerance strategies in mycorrhizal plants for which financial support has been provided by University Grant commission, New Delhi.
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