ARS | Publication request: COMPARISON OF INDUCED PEROXIDASE ACTIVITY IN COTTON PLANTS RESISTANT AND SUSCEPTIBLE TO VERTICILLIUM DAHLIAE

Submitted to: National Cotton Council Beltwide Cotton Conference
Publication Type: Proceedings
Publication Acceptance Date: January 3, 2006
Publication Date: April 15, 2006
Citation: Golubenko, Z., Stipanovic, R.D., Akhunov, A., Veshkurova, O., Abdurashidova, N., Ibragimov, F., Beresneva, Y., Khashimova, N., Mustakimova, E., Bokov, A. 2006. Comparison of induced peroxidase activity in cotton plants resistant and susceptible to Verticillium dahliae. In: Proceedings of the Beltwide Cotton Conferences, January 3-6, 2006, San Antonio, Texas. 2006 CDROM.

Interpretive Summary: Peroxidases participate in many reactions and regulate multiple processes in the plant. Among these, chitin-binding peroxidases play a key role. We have investigated peroxidase activity in seven Upland cotton cultivars, and we found that a two-fold increase occurred in the resistant cotton variety AN-BAYAUT 2 after inoculation with Verticillium dahliae. The peroxidase activity in the resistant variety was due to biosynthesis of chitin binding peroxidase isozymes. The susceptible cotton line C-4727 also showed an increase in peroxidase activity, but most of these peroxidase isozymes did not bind to chitin.

Technical Abstract: Peroxidases participate in many reactions and regulate multiple processes in the plant. Among these, chitin-binding peroxidases play a key role. We have investigated peroxidase activity in seven Upland cotton cultivars, and we found that a two-fold increase occurred in the resistant cotton variety AN-BAYAUT 2 after inoculation with Verticillium dahliae. The peroxidase activity in the resistant variety was due to biosynthesis of chitin binding peroxidase isozymes. The susceptible cotton line C-4727 also showed an increase in peroxidase activity, but most of these peroxidase isozymes did not bind to chitin.