title: Selenite transiently represses transcription of photosynthesis-related genes in potato leaves.
abstract: A striking response of potato leaves to aspersion with selenite was observed at the transcriptional level by means of cDNA microarrays analysis. This response is characterized by a general transient repression of genes coding for components of photosynthetic systems and of other light-regulated genes. In particular, maximal repression was observed 8 h after selenite aspersion, while 24 h after the treatment a complete recovery of normal transcriptional levels was detected. Another general feature of the transcriptional response to selenite is represented by the transcriptional induction of genes related to amino acid metabolism, and to stress defense; interestingly, two genes coding for glutathione S-transferases were found early-induced upon selenite treatment.
authors.affiliation: Department of Industrial Chemistry, University of Bologna, Viale Risorgimento 4, Bologna (I), 40136, Italy.
authors.forename: Valeria
authors.initials: V
authors.lastname: Poggi
authors.forename: Valerio
authors.initials: V
authors.lastname: Del Vescovo
authors.forename: Claudio
authors.initials: C
authors.lastname: Di Sanza
authors.forename: Rodolfo
authors.initials: R
authors.lastname: Negri
authors.forename: Alejandro
authors.initials: A
authors.lastname: Hochkoeppler
mesh_terms: D005810:Multigene Family; D010788:Photosynthesis / Q000235:genetics* / Q000528:radiation effects; D018515:Plant Leaves / Q000187:drug effects* / Q000235:genetics* / Q000254:growth & development / Q000528:radiation effects; D018038:Sodium Selenite / Q000494:pharmacology*; D011198:Solanum tuberosum / Q000187:drug effects* / Q000235:genetics* / Q000254:growth & development / Q000528:radiation effects; D014158:Transcription, Genetic / Q000187:drug effects* / Q000235:genetics
chemical_list: D018038:Sodium Selenite