TY  - JOUR
AU  - Mohamed, Heba I.
AU  - Aly, Aly A.
AU  - Omar, Moawad R.
T1  - Use of Phenols, Peroxidase and Polyphenoloxidase of Seed to Quantify Resistance of Cotton Genotypes to Damping-off Incited by Fusarium oxysporum
JO  - Journal of Stress Physiology & Biochemistry
Y1  - 2014
VL  - 10
IS  - 1
SP  - 37
EP  - 44
UR  - http://www.jspb.ru/issues/2014/N1/JSPB_2014_1_37-44.pdf

KW  - Fusarium oxysporum
KW  - Gossypium barbadense
KW  - peroxidase
KW  - phenol
KW  - polyphenol oxidase




N1  - Owner: Алексей
N1  - Added to JabRef: 2014.01.31
N2  - A greenhouse test was conducted in 2011 and 2012 growing seasons at Giza Agricultural Research Station to evaluate the reaction of six cotton genotypes to damping-off incited by Fusarium oxysporum. Damping-off incidence on the genotypes ranged from 70-88%. In general, the genotypes could be divided into highly susceptible, susceptible, and moderately susceptible. Data for damping-off incidence and level or activity of some biochemical components (phenols, peroxidase, and polyphenoloxidase) were entered into a computerized linear regression analysis. The analysis contrasted seven predictive models by using the biochemical components, singly or in combination, as biochemical predictors. It was evident that models nos. 2 and 6 were the best models for predicting incidence of damping-off. The superiority of these models was attributed to their high R² values (0.748 and 0.902, respectively) and the significance of their F. values (P = 0.026 and P = 0.031, respectively). The results of the present study suggest that peroxidase alone or both peroxidase and polyphenoloxidase, which may or may not parts of damping-off resistance mechanisms, can be used as biochemical markers to predict resistance to damping-off incited by F. oxysporum.
ER  -