title: Identification of a putative Solanum tuberosum transcriptional coactivator up-regulated in potato tubers by Fusarium solani f. sp. eumartii infection and wounding.
abstract: Coadaptors or coactivators are a new class of transcription factors capable of interconnecting a regulator DNA-binding protein with a component of the basal transcription machinery allowing transcriptional activation to proceed. We report the identification of a novel Solanum tuberosum ssp. tuberosum putative transcription coactivator, named StMBF1 (Solanum tuberosum multiprotein bridging factor 1). The StMBF1 cDNA was isolated from a Fusarium solani f. sp. eumartii-infected potato tuber cDNA library, using a differential screening approach. StMBF1 is up-regulated during fungal attack as well as on wounding. A Fusarium elicitor source and ethylene precursor and salicylic acid also regulate StMBF1 expression. The precise role of StMBF1 during the plant response against environmental stresses remains to be elucidated.
authors.affiliation: Instituto de Investigaciones Biológicas-Departamento de Biología, Universidad Nacional de Mar del Plata, Funes 3250, CC 1245, 7600 Mar del Plata, Argentina Instituto de Biología Molecular de Barcelona, Centro de Investigación y Desarrollo (CSIC), Jordi Girona 18-24, 08034 Barcelona, España.
authors.forename: Andrea V.
authors.initials: AV
authors.lastname: Godoy
authors.forename: María Eugenia
authors.initials: ME
authors.lastname: Zanetti
authors.forename: Blanca
authors.initials: B
authors.lastname: San Segundo
authors.forename: Claudia A.
authors.initials: CA
authors.lastname: Casalongué