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Title: Changes in peroxidase activities and soluble proteins in strawberry varieties under salt-stress
Authors: Turhan, Ece
Uludağ Üniversitesi/Ziraat Fakültesi/Bahçe Bitkileri Bölümü.
Gülen, Hatice
Eriş, Atilla
Keywords: Plant sciences
Salt stress
Osmotic adjustment
Persical batsch
Fragaria x ananassa
Issue Date: 2006
Publisher: Springer Heidelberg
Citation: Gülen, H. vd. (2006). ''Changes in peroxidase activities and soluble proteins in strawberry varieties under salt-stress''. Acta Physiologiae Plantarum, 28(2), 109-116.
Abstract: Effects of salt stress on the activity of peroxidase (PRX) isozyme and leaf proteins were studied in the three strawberry varieties, Camarosa, Tioga and Chandler. Plants were watered with modified 1/3 Hoagland nutrient solution containing 0 (control), 8.5, 17.0 and 34.0 mM NaCl for 30 days following 20 days acclimation. PRX activity was assayed in leaf extracts and PRX profiles of control and salt treated plants were performed by native polyacrylamide gel electrophoresis (PAGE). During the salt stress Tioga and Camarosa tolerated the cellular damage with less electrolyte leakage while Chandler exhibited a severe cellular damage with the highest (87.5% in 34.0 mM NaCl treatment) electrolyte leakage. Total soluble protein content was decreased by salinity in Tioga (from 11.35 to 5.86 mg center dot g(-1) DW) and Chandler (from 9.35 to 3.90 mg center dot g(-1) DW) while it was almost unchanged in Camarosa. Salt stress increased total and specific PRX activity as compared with the control in all the varieties. In native PAGE, one basic isoperoxidase band (Rf=0.27) was observed commonly with different band intensity in all the treatments. Therefore, it might be associated with lignification and recovery of cell membrane damage in strawberry plants under salt stress.
ISSN: 0137-5881
Appears in Collections:Scopus
Web of Science

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