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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Analysis of the stress-inducible transcription factor SsNAC23 in sugarcane plants

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Autor(es):
Ditt, Renata Fava [1] ; Gentile, Agustina [1] ; Tavares, Rafael Garcia [1] ; Camargo, Sandra Rodriguez [1] ; Fernandez, Jorge Hernandez [2] ; da Silva, Marcio Jose [3] ; Menossi, Marcelo [1]
Número total de Autores: 7
Afiliação do(s) autor(es):
[1] Univ Estadual Campinas, Inst Biol, Depto Genet Evolucao & Bioagentes, Lab Genoma Func, BR-13083875 Campinas, SP - Brazil
[2] UENF CBB LQFPP, BR-28013602 Campo Dos Goytacazes, RJ - Brazil
[3] Univ Estadual Campinas, Inst Biol, Ctr Biol Mol & Engn Genet, Dept Genet Evolucao & Bioagentes, BR-13083875 Campinas, SP - Brazil
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: Scientia Agricola; v. 68, n. 4, p. 454-461, JUL-AUG 2011.
Citações Web of Science: 5
Resumo

Stresses such as cold and drought can impair plant yield and induce a highly complex array of responses. Sugarcane (Saccharum spp.) is cultivated in tropical and subtropical areas and is considered a cold-sensitive plant. We previously showed that cold stress induces the expression of several genes in in vitro sugarcane plantlets. Here we characterize one of those genes, SsNAC23, a member of the NAG family of plant-specific transcription factors, which are induced by low temperature and other stresses in several plant species. The expression of SsNAC23 was induced in sugarcane plants exposed to low temperatures (4 degrees C). With the aim of further understanding the regulatory network in response to stress, we used the yeast two-hybrid system to identify sugarcane proteins that interact with SsNAC23. Using SsNAC23 as bait, we screened a cDNA expression library of sugarcane plants submitted to 4 degrees C for 48 h. Several interacting partners were identified, including stress-related proteins, increasing our knowledge on how sugarcane plants respond to cold stress. One of these interacting partners, a thioredoxin h1, offers insights into the regulation of SsNAC23 activity. (AU)

Processo FAPESP: 04/15865-8 - Caracterização do gene SsNAC23 em plantas transgênicas de cana-de-açúcar
Beneficiário:Marcelo Menossi Teixeira
Linha de fomento: Auxílio à Pesquisa - Regular