info:eu-repo/semantics/article
Common sets of promoter elements determine the expression characteristics of three arabidopsis genes encoding isoforms of mitochondrial cytochrome c oxidase subunit 6b
Fecha
2009-07Registro en:
Mufarrege, Eduardo Federico; Curi, Graciela Cristina; Gonzalez, Daniel Hector; Common sets of promoter elements determine the expression characteristics of three arabidopsis genes encoding isoforms of mitochondrial cytochrome c oxidase subunit 6b; Oxford University Press; Plant And Cell Physiology; 50; 7; 7-2009; 1393-1399
0032-0781
CONICET Digital
CONICET
Autor
Mufarrege, Eduardo Federico
Curi, Graciela Cristina
Gonzalez, Daniel Hector
Resumen
The promoters of the three Arabidopsis nuclear genes encoding mitochondrial cytochrome c oxidase subunit 6b (AtCOX6b) have similar expression patterns, with preferential expression in anthers and meristems, and are induced by sucrose and etiolation. Additionally, induction of AtCOX6b-1 by GA3 and AtCOX6b-3 by 6-benzylaminopurine was observed. Site II elements (TGGGCC/T) present in the three promoters bind common nuclear proteins and are important for basal and induced expression. Induction by sucrose requires, in addition, the integrity of elements with the sequence TACTAA. The results imply the participation of common regulatory factors in the expression of the three Arabidopsis COX6b genes.