Analysis of interactions of nitric oxide and polyamine under cadmium stress in wheat

Authors : Fatma MUTLU, Füsun YÜREKLİ

Pages : 778-785

View : 14 | Download : 8

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Wheat cultivars chosen for their cadmium insert ignore into journalissuearticles values(Cd); tolerance insert ignore into journalissuearticles values(Sönmez-2001); and sensitivity insert ignore into journalissuearticles values(Quality); were grown in Hoagland solution for 20 days and then they were treated with 100 μM 2-insert ignore into journalissuearticles values(4-carboxyphenyl);-4,4,5,5-tetramethylylimidazoline-1-oxyl insert ignore into journalissuearticles values(cPTIO);, a nitric oxide insert ignore into journalissuearticles values(NO); scavenger, or with 100 μM sodium nitroprusside insert ignore into journalissuearticles values(SNP);, a NO donor, with and without 9 mM Cd. NO, free polyamines, and Cd levels were analysed by using leaf and root samples taken 24 and 72 h after treatment. There was a significant increase in NO level in the Cd+SNP treatment in cv. Quality cultivars at 24 and 72 h. The NO level recorded in cv. Quality was higher in the Cd and Cd+SNP treatments at 24 h and in the SNP and Cd+SNP treatments at 72 h compared to cv. Sönmez-2001. Spermidine insert ignore into journalissuearticles values(Spd); had the highest amount of amine. In almost all treatments, the sensitive cultivar Quality included higher contents of Spd, putrescine, and spermine compared to cv. Sönmez-2001. Quality presented higher levels of Cd accumulation in root and leaf tissues in all treatments compared to Sönmez-2001.
Keywords : Triticum aestivum, cadmium, nitric oxide, polyamine, SNP, cPTIO