
TY  - JOUR
A1  - García, Pablo C. 
A1  - Rivero, Rosa M. 
A1  - López-Lefebre, Luis R. 
A1  - Sánchez, Esteban 
A1  - Ruiz, Juan M. 
A1  - Romero, Luis 
T1  - Response of oxidative metabolism to the application of carbendazim plus boron in tobacco
JF  - Functional Plant Biology
JO  - Functional Plant Biol.
Y1  - 2001
VL  - 28
IS  - 8
SP  - 801
EP  - 806
KW  - Boron, carbendazim, Nicotiana tabacum L., oxidative metabolism.
UR  - https://doi.org/10.1071/PP00098 
N2  - In view of the essential role of oxidative process in the development of pathogen resistance in plants, the aim of the present study was to determine the individual effect of a fungicide, as well as to determine the combined effect of the fungicide and boron (B) on superoxide dismutase (SOD), guaiacol peroxidase (GPX), catalase (CAT), and ascorbate peroxidase (APX) activities and H 2 O 2 levels in tobacco plants (Nicotiana tabacum L. cv. Tennessee 86). The fungicide applied was carbendazim (carb) at a concentration of 2.6 mM . Boron was applied as H 3 BO 3 at: 1.6 mM (B1), 4 mM (B2), 8 mM (B3), 16 mM (B4), 32 mM (B5), and 64 mM (B6). The results indicated that foliar application of carbendazim by itself does not increase SOD, GPX, CAT or APX activities or H2 O2 foliar accumulation. The combined application of carbendazim and B increased SOD, GPX, CAT, and APX activities, especially in carb-B3 and carb-B4 . This effect may signify an additional tolerance mechanism to pathogenic infection, given the participation of these enzymes in the early phases of the plant&#8211;pathogen interactions. 
ER  -

