Tolerance to ozone might impose restrictions to plant disease management in tomato

Tropospheric ozone (O3) is considered a major air pollutant having negative effects on plant growth and productivity. Background concentrations are expected to rise in several regions of the world in the next 50 years, affecting plant responses to diseases, thus requiring new management strategies f...

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Otros Autores: Romero, Ana María, Menéndez, Analía Inés, Folcia, Ana María, Martínez Ghersa, María Alejandra
Formato: Artículo
Lenguaje:Inglés
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Acceso en línea:http://ri.agro.uba.ar/files/intranet/articulo/2020romero1.pdf
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Aporte de:Registro referencial: Solicitar el recurso aquí
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245 1 0 |a Tolerance to ozone might impose restrictions to plant disease management in tomato 
520 |a Tropospheric ozone (O3) is considered a major air pollutant having negative effects on plant growth and productivity. Background concentrations are expected to rise in several regions of the world in the next 50 years, affecting plant responses to diseases, thus requiring new management strategies for food production. • The effects of elevated O3 on the severity of a bacterial disease, and the effectiveness of a chemical defence inducer, were examined in two cultivars of tomato, Roma and Moneymaker, which present different tolerance to this pollutant. The two cultivars differ in their ability to produce and accumulate reactive oxygen species (ROS) in leaf tissues. Tomato plants were challenged with a strain of Xanthomonas vesicatoria, Xv9, which is pathogenic on tomato. • Ozone consistently increased severity of the disease by over 40% in both cultivars. In the more tolerant cultivar, O3 pollution increased disease intensity, even after applying a commercially available product to enhance resistance (acibenzolar-S-methyl, BTH). In the more susceptible cultivar, level of disease attained depended on the oxidative balance that resulted from other stress factors. • The antioxidant capacity of the plant at the time of infection was relevant for controlling development of the disease. Our results suggest that development of O3 tolerance in commercial crops might impose a penalty cost in terms of disease management under projected higher O3 concentrations. 
653 |a BACTERIAL DISEASE 
653 |a PLANT–PATHOGEN INTERACTIONS 
653 |a TROPOSPHERIC OZONE 
653 |a XANTHOMONAS VESICATORIA 
700 1 |9 25212  |a Romero, Ana María  |u Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Buenos Aires, Argentina. 
700 1 |a Menéndez, Analía Inés  |u Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Buenos Aires, Argentina.  |9 33439 
700 1 |a Folcia, Ana María  |u Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Buenos Aires, Argentina.  |9 19352 
700 1 |9 7113  |a Martínez Ghersa, María Alejandra  |u Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Buenos Aires, Argentina.  |u Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.  |u CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina. 
773 0 |t Plant Biology  |g vol.22, no.1 (2020), p.47–54, tbls., grafs., fot. 
856 |f 2020romero1  |i en reservorio  |q application/pdf  |u http://ri.agro.uba.ar/files/intranet/articulo/2020romero1.pdf  |x ARTI202003 
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