Plant Pathology Journal1812-53871812-5425Asian Network for Scientific Information10.3923/ppj.2005.96.102Fusarium oxysporum Isolate Induces Polyphenoloxidase
Activity in the Date Palm Seedlings Allowing their Protection Against the Bayoud
Disease]]>HassniM. ElVerdeilJ.L. HadramiI. El2200542This study was conducted with the aim to determine the effect of an hypoaggressive isolate of Fusarium oxysporum on polyphenoloxidase activity in the interaction of date palm with Fusarium oxysporum albedinis, the agent causal of the Bayoud disease. Biochemical analyses indicated that treatment of resistant (BSTN) and susceptible (JHL) date palm seedlings with the hypoaggressive (AHD) or aggressive isolate (ZAG) of Fusarium oxysporum was correlated with the ability of roots to enhance their defense responses. The maximum of polyphenoloxidase activity was revealed to be 5 times higher than in control after 15 and 20 days for ZAG treatment and 3 times after 30 and 40 days for AHD treatment in BSTN and JHL cultivars, respectively. When seedlings were firstly treated by the hypoaggressive isolate and then by the aggressive one, the polyphenoloxidase activity was enhanced within 10 days and reached similar values as obtained by ZAG isolate alone. These results show that polyphenoloxidase induced by the hypoaggressive isolate of Fusarium oxysporum could have an important role in the establishment of date palm resistance against the Bayoud disease.]]>Sommer, A., E. Ne'eman, J.C. Steffens, A.M. Mayer and E. Harel,199410513011311Marques, L., A. Fleuriet and J.J. Macheix,199533193200Carbonaro, M. and M. Mattera,2001Prunus persica L., cv. Regina bianca) and pear (Pyrus communis L., cv. Williams).]]>72419424Li, L. and J.C. Steffens,2002215239247Goy, P.A., G. Felix, J.P. Metraux and F. Meins, Jr.,1992Nicotiana glutinosa x Nicotiana debneyi is associated with high constitutive levels of beta-1, 3-glucanase, chitinase, peroxidase and polyphenoloxidase.]]>411121Chen, C., R.R. Belanger, N. Benhamou and T.C. Paulitz,2000Pythium aphanidermatum.]]>561323Mohammadi, M. and H. Kazemi,2002Fusarium graminearum and induced resistance.]]>162491498Mayer, A.M. and E. Harel,197918193215Peter, M.G.,198928555570Nicholson, R.L. and R. Hammerschmidt,199230369389Fuch, J.G., Y. Moenne-Loccoz and G. Defago,1999Fusarium oxysporum strain Fo47 to protect tomato against Fusarium wilts.]]>14105110Tamietti, G., L. Ferraris, A. Matta and I.A. Gentile,19931386676Fuchs, J.G., Y. Moenne-Loccoz and G. Defago,1997Fusarium oxysporum strain Fo47 induces resistance to Fusarium wilt in tomato.]]>81492496Benhamou, N., C. Garand and A. Goulet,2002Fusarium oxysporum strain Fo47 to induce resistance against Pythium ultimum infection in cucumber.]]>6840444060Hammerschmidt, R.,1999557784El-Hassni, M., F.J. Aiti, A. Dihazi, E. Ait Barka, F. Daayf and I. El-Hadrami,2004Fusarium oxysporum isolate.]]>152182189El-Idrissi-Tourane, A.,1997Phoenix dactylifera L.) vis-a-vis de Fusarium oxysporum f. sp. albedinis, agent causal du Bayoud.]]>1997Bradford, M.M.,197672248254Gahan, P.B.,1984pp: 301pp: 301Stout, M.J., A.L. Fidantsef, S.S. Duffey and R.M. Bostock,1999Lycopersicon esculentum.]]>54115130Constabel, C.P., D. R. Bergey and C.A. Ryan,199592407411El-Hadrami, I.,2002Phoenix dactylifera L.) au Fusarium oxysporum albedinis, agent causal du bayoud.]]>221926Vaughn, K.C., A.R. Lax and S.O. Duke,198872659665Vaughn, K.C. and S.O. Duke,1981Sorghum.]]>108319327Thipyapong, P. and J.C. Steffens,1997115409418El Hassni, M., A. El Hadrami, F. Daayf, E.A. Barka and I. El Hadrami,2004Fusarium oxysporum f. sp. albedinis and elicitor of defence reactions in date palm roots.]]>43195204