Molecular aspects of leaf senescence

• Autor(a) principal: Quirino, Betânia Ferraz
• Data de Publicação: 2000
• Outros Autores: Yoo-Sun, Noh, Himelblau, Edward, Amasino, Richard M.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UCB
• Texto Completo: http://twingo.ucb.br:8080/jspui/handle/10869/662; https://repositorio.ucb.br:9443/jspui/handle/123456789/7911

Senescence is the last stage of leaf development and one type of programmed cell death that occurs in plants. The relationships among senescence programs that are induced by a variety of factors have been addressed at a molecular level in recent studies. Furthermore, an overlap between the pathogen-response and senescence programs is beginning to be characterized. The complexity of the senescence program is also evident in studies of senescence-specific gene regulation and the role of photosynthesis and plant hormones in senescence regulation. New molecular-genetic approaches are expected to be useful in unraveling the molecular mechanisms of the leaf senescence program.