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Revista de Ciências Agrárias
versão impressa ISSN 0871-018X
Rev. de Ciências Agrárias v.31 n.2 Lisboa dez. 2008
Arabidopsis thaliana: uma pequena planta um grande papel
Arabidopsis thaliana: a small plant a big role
Carla Andréa Delatorre1, Adriano Alves da Silva2
RESUMO
Arabidopsis thaliana é uma das espécies mais utilizadas na pesquisa científica atualmente. Apesar de não apresentar importância econômica direta, esta espécie é o foco de pesquisas na área da genética, bioquímica e fisiologia. O número de trabalhos publicados sobre a mesma aumentou significativamente após o seqüenciamento de seu genoma. Apesar do grande número de estudos existe ainda muita desinformação sobre qual o seu verdadeiro papel na pesquisa científica de espécies cultivadas e de que maneira o avanço no conhecimento adquirido com A. thaliana pode auxiliar o desenvolvimento de cultivares cada vez mais resistentes, adaptados e produtivos. Os objetivos deste trabalho são discutir as razões do uso da A. thaliana como espécie modelo e a aplicabilidade deste modelo no estudo de espécies cultivadas.
Palavras-chave: Biotecnologia, estresses a fatores abióticos, melhoramento de plantas e organismo modelo.
ABSTRACT
Arabidopsis thaliana has been the species of choice for scientific research. Despite its lack of economic importance, it has been the focus of genetic, biochemical and physiological research worldwide. The number of published articles about arabidopsis has increased substantially after its genome was sequenced, and outgrew the number of articles related to economically important species. Despite the great number of studies involving arabidopsis, there is much disinformation about the actual role of this species in crop scientific research, as well as how the breakthroughs in arabidopsis research may help to develop more adapted and productive crops. This work aims to discuss reasons for using A. thaliana as a model species and the feasibility of this model for crop studies.
Key-words: Biotechnology, model organism, abiotic stress, plant breeding.
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1 Dra, Professora Adjunto do Departamento de Plantas de Lavoura, Departamento de Plantas de Lavoura, Faculdade de Agronomia da Universidade Federal do Rio Grande do Sul -UFRGS, Caixa Postal 15100, 90001-970, Porto Alegre-RS, Brasil, E-mail: cadtorre@ufrgs.br. Autor para correspondência.
2 Doutorando do Programa de Pós-Graduação em Fitotecnia, Faculdade de Agronomia-UFRGS. Porto Alegre, RS, Brasil. E-mail: agroadriano@terra.com.br.
Recepção/Reception: 2007.08.28 aceitação/acception: 2008.04.29