No abstract

Peroxiredoxins (Prxs) play major roles in preventing oxidative damage and their function is consistent with the presence of Prx isoforms in most, if not all, cellular compartments and their expression is dependent on environmental conditions. The aim of this study was to identify and characterize genes encoding Prxs in Vitis vinifera. Quantitative real time polymerase chain reaction (qRT PCR) was used to determine their response to irradiance, heat, and water stress. We identified seven vvprx genes, two of which were especially responsive to water stress, followed by heat stress, but no major changes were observed after high irradiance. The vvprxIIF targeted to mitochondria was the most responsive to water stress and it might be involved in drought tolerance through H 2 O 2 signalling. The vvprxII-2, a putative PrxII, is targeted to the chloroplasts and was the most responsive to heat stress. It might be related with abscisic acid-dependent thermotolerance.

Com este artigo, pretendemos laçar luz sobre os imperativos atuais que rondam o exercício da crítica de cinema, moldada e reconfigurada a partir das demandas e transformações advindas da emergência digital e dos fluxos da comunicação online. Partimos de pressupostos que enxergam a crescente busca dos críticos por uma autoridade perdida ou abalada nos últimos anos, tal qual formulada por Mattias Frey (2015). Seguimos um caminho metodológico baseado na Teoria dos Campos, de Pierre Bourdieu (2007; 1996a, 1996b), atentando para a necessidade de uma abordagem sociológica na investigação sobre a crítica de cinema, ao mesmo tempo em que mapeamos tal prática no cenário online brasileiro atual.