Occurrence of arbuscular mycorrhizal fungi in saline soils of the Tabriz Plain of Iran in relation to some physical and chemical properties of soil

被引:176
作者
Aliasgharzadeh, N [1 ]
Rastin, NS
Towfighi, H
Alizadeh, A
机构
[1] Univ Tabriz, Fac Agr, Dept Soil Sci, Tabriz 51664, Iran
[2] Univ Tehran, Fac Agr, Dept Soil Sci, Karaj, Iran
[3] Univ Tarbiat Modarres, Fac Agr, Dept Plant Pathol, Tehran, Iran
关键词
arbuscular mycorrhizal fungi; glycophytes; halophytes; salinity; salt tolerance;
D O I
10.1007/s005720100113
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The abundance and distribution of arbuscular mycorrhizal fungi (AMF) were evaluated in the Tabriz Plain, where soil salinity levels range from 7.3 to 92.0 dS/m. Soil and root samples were collected from the rhizosphere of several glycophytes (Allium cepa L., Medicago sativa L., Triticum aestivum L. and Hordeum vulgare L.) and halophytes (Salicornia sp. and Salsola sp.) and were analysed for spore number in soil, root colonization with AMF and some physical and chemical soil properties. The number of AMF spores was not correlated significantly with soil salinity but suffered adverse effects from the accumulation of some anions and cations. Cluster analysis of correlation matrices showed that root colonization, soil pH, sand and clay percent, and soil-available P, rather than soil salinity and ion concentrations, were closely related with spore number. The percentage of root length colonized in glycophytes significantly decreased with increasing soil salinity. Barley roots showed 5% mycorrhizal colonization in high soil salinity (similar to 20 dS/m). Halophyte roots were not mycorrhizal but more spores were found in rhizosphere than in non-rhizosphere soil.
引用
收藏
页码:119 / 122
页数:4
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