Volume 10, Issue 4 (winter 2007)
2007, 10(4): 197-212 |
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M. Parsaeian, A. F. Mirlohi, A. M. Rezaie, M. Khayyam Nekoie. The Effect of Endophytic Fungi on Physiological Characteristics and Cold Tolerance of Two Species of Meadow Fescue and Tall Fescue. Journal of Crop Production and Processing 2007; 10 (4) :197-212
URL: http://jcpp.iut.ac.ir/article-1-616-en.html
URL: http://jcpp.iut.ac.ir/article-1-616-en.html
Abstract: (35333 Views)
To determine the role of endophytes in conferring valuable physiological characteristics on and induction inducing cold tolerance in two species of festuca, an experiment was done at Isfahan University of Technology in 2002. Endophyte-infected and non-infected clones from two genotypes of tall fescue and one meadow fescue were prepared and coded 75,83 and 60 respectively. The clones were exposed to cold treatments at 6, -2 and –10C and compared with control treatment at 20C. After three weeks of cold treatments, relative water content of leaf and crown, cell membrane stability (electrolyte leakage), percentage of membrane damage and finally proline content of leaf were measured. The presence of endophyt caused an slight increase in relative water content of leaf and crown. There was considerably higher proline in endophyte-infected plants compared with non-infected ones in both stress and non-stress conditions. Endophytic fungi had strong effects on maintenance of membrane stability and on the decrease of electrolyte leakage at all temperature levels. Among plant genotypes, 83 preformed better for some characteristics, specially in the presence of endophyte, and showed higher cold tolerance.
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