Artículos de revistas
Water Stress Reveals Differential Antioxidant Responses Of Tolerant And Non-tolerant Sugarcane Genotypes.
Registro en:
Plant Physiology And Biochemistry : Ppb / Société Française De Physiologie Végétale. v. 74, p. 165-75, 2014-Jan.
1873-2690
10.1016/j.plaphy.2013.11.016
24308986
Autor
Boaretto, Luis F
Carvalho, Giselle
Borgo, Lucélia
Creste, Silvana
Landell, Marcos G A
Mazzafera, Paulo
Azevedo, Ricardo A
Institución
Resumen
The biochemical responses of the enzymatic antioxidant system of a drought-tolerant cultivar (IACSP 94-2094) and a commercial cultivar in Brazil (IACSP 95-5000) grown under two levels of soil water restriction (70% and 30% Soil Available Water Content) were investigated. IACSP 94-2094 exhibited one additional active superoxide dismutase (Cu/Zn-SOD VI) isoenzyme in comparison to IACSP 95-5000, possibly contributing to the heightened response of IACSP 94-2094 to the induced stress. The total glutathione reductase (GR) activity increased substantially in IACSP 94-2094 under conditions of severe water stress; however, the appearance of a new GR isoenzyme and the disappearance of another isoenzyme were found not to be related to the stress response because the cultivars from both treatment groups (control and water restrictions) exhibited identical changes. Catalase (CAT) activity seems to have a more direct role in H2O2 detoxification under water stress condition and the shift in isoenzymes in the tolerant cultivar might have contributed to this response, which may be dependent upon the location where the excessive H2O2 is being produced under stress. The improved performance of IACSP 94-2094 under drought stress was associated with a more efficient antioxidant system response, particularly under conditions of mild stress. 74 165-75
Materias
Ítems relacionados
Mostrando ítems relacionados por Título, autor o materia.
-
Portacaval shunting causes differential mitochondrial superoxide production in brain regions
Kosenko E.A.; Tikhonova L.A.; Alilova G.A.; Montoliu C.; Barreto G.E.; Aliev G.; Kaminsky Y.G. (Elsevier Inc., 2017) -
Influence of sex on biomarkers of oxidative stress in the kidney, lungs, and liver of rabbits after exposure to diazinon
Hernández-Moreno D.; Míguez M.P.; Soler F.; Pérez-López M. (Springer Verlag, 2018) -
Biochemical biomarkers in Nile tilapia (Oreochromis niloticus) after short-term exposure to diesel oil, pure biodiesel and biodiesel blends
Nogueira, Lílian; Sanches, Ana Letícia Madeira; da Silva, Danilo Grünig Humberto; Ferrizi, Vítor Cid; Moreira, Altair Benedito; de Almeida, Eduardo Alves