Localized stimulation of anthocyanin accumulation and delineation of pathogen ingress in maize genetically resistant toBipolaris maydisrace O

Reduction of Light-Induced Anthocyanin Accumulation in Inoculated Sorghum Mesocotyls1

“…5A). The 621 and 535 M r are consistent with those of the dimalonyl and monomalonyl derivatives of cyanidin 3-glucoside, respectively, previously identified in maize (Hipskind et al, 1996a) and in members of the Asteraceae (Takeda et al, 1986). The structure of cyanidin 3-dimalonyl glucoside is shown in Figure 6.…”

“…Accumulation of anthocyanins is induced by various environmental stimuli, including UV and red irradiation (Shichijo et al, 1993;Reddy et al, 1994), low temperature (Christie et al, 1994), pathogen attack (Harrison and Strictland, 1980;Heim et al, 1983;Hipskind et al, 1996a), and several plant-growth regulators, such as cytokinins (Deikman and Hammer, 1995), GA (Mealem-Beno et al, 1997), and ethylene (Woltering and Somhorst, 1990). Stimulation of anthocyanin accumulation has often been correlated with the activation of genes involved in the anthocyanin biosynthetic pathway.…”

Morphological and Physiological Responses of Maize (Zea mays L.) Seeds Grown under Increasing Concentrations of Chlorantraniliprole Insecticide

“…Similar accumulation of anthocyanin was observed by Alla and Younis [35] in maize and soybean exposed to pesticide stress. Anthocyanins are responsible for tolerance to various stress factors such as drought or resistance to pathogens [36]. Furthermore, anthocyanins known as being powerful antioxidants increased its accumulation when the plant was exposed to various stresses [37].…”

Quantificação das substâncias fenólicas totais em órgãos da aroeira Schinus Terebenthifolius (RADDI)

“…A acumulação de vários tipos de substâncias em resposta à uma infecção são muito estudadas atualmente. Hipskind et al (1996) concluíram que a resposta à infecção por Bipolares maydis provocou o acúmulo de antocianidinas nas células saudáveis que rodeiam o local infectado pelo patógeno, restringindo a infecção. O início da micorrização em cevada produziu uma acumulação de amidas como resposta defensiva (Peipp, 1997).…”