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Publication Type J
Authors Barin, M., N. Aliasgharzad, P. A. Olsson, M. Rasouli-Sadaghiani and M. Moghddam
Title Abundance of arbuscular mycorrhizal fungi in relation to soil salinity around Lake Urmia in northern Iran analyzed by use of lipid biomarkers and microscopy
Source Pedobiologia
Author Keywords Fatty acids NLFA PLFA Mycorrhizal symbiosis Salinity Soil properties salt stress nutrient-uptake water status fatty-acids growth plants tolerance biomass photosynthesis colonization
Abstract Saline soils around Lake Urmia in northern Iran constitute a stressed environment for plants and microbial communities, including arbuscular mycorrhizal (AM) fungi. Soil and root samples were collected from fields cultivated with the glycophytes Allium cepa L. and Medicago sativa L, and sites dominated by the halophyte Salicornia europaea L. Soil and root samples were analyzed for the AM fungal signature neutral lipid fatty acid (NLFA) 16:1 omega 5. The roots were also examined microscopically for mycorrhizal colonization. Each plant species was sampled across a salt gradient. Microscopic examination showed no AM fungal structures in the roots of S. europaea. The highest root colonization was recorded for M. sativa. The highest NLFA 16:1 omega 5 values were found in soil around M. sativa roots and the lowest in soil around S. europaea roots. We found evidence for stimulation of vesicle formation at moderate salinity levels in M. sativa, which is an indication of increased carbon allocation to mycorrhiza. On the other hand, we found a negative correlation between salinity and arbuscule formation in A. cepa, which may indicate a less functional symbiosis in saline soils. (C) 2013 Elsevier GmbH. All rights reserved.
Author Address [Barin, Mohsen; Aliasgharzad, Nasser] Univ Tabriz, Dept Soil Sci, Fac Agr, Tabriz, Iran. [Olsson, Pal Axel] Lund Univ, Dept Biol, SE-22362 Lund, Sweden. [Rasouli-Sadaghiani, MirHassan] Univ Urmia, Dept Soil Sci, Fac Agr, Orumiyeh, Iran. [Moghddam, Mohammad] Univ Tabriz, Dept Plant Breeding, Fac Agr, Tabriz, Iran. Barin, M (reprint author), Univ Tabriz, Dept Soil Sci, Fac Agr, Tabriz, Iran. barin.mohsen@yahoo.com
ISSN 0031-4056
ISBN 0031-4056
29-Character Source Abbreviation Pedobiologia
Year Published 2013
Volume 56
Issue 4-6
Beginning Page 225-232
Digital Object Identifier (DOI) 10.1016/j.pedobi.2013.09.001
Unique Article Identifier WOS:000328526500009
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