0000000000001792
AUTHOR
Julio Salinas
Putrescine as a signal to modulate the indispensable ABA increase under cold stress.
2 páginas -- PAGS nros. 219-220
Prefoldins contribute to maintaining the levels of the spliceosome LSM2–8 complex through Hsp90 in Arabidopsis
14 p.-7 fig.-2 tab.
A genetic approach reveals different modes of action of prefoldins
17 p.-7 fig.
The Arabidopsis CBF Gene Family Is Composed of Three Genes Encoding AP2 Domain-Containing Proteins Whose Expression Is Regulated by Low Temperature but Not by Abscisic Acid or Dehydration1
Abstract We have identified two genes from Arabidopsis that show high similarity withCBF1, a gene encoding an AP2 domain-containing transcriptional activator that binds to the low-temperature-responsive element CCGAC and induces the expression of some cold-regulated genes, increasing plant freezing tolerance. These two genes, which we have named CBF2 and CBF3, also encode proteins containing AP2 DNA-binding motifs. Furthermore, like CBF1, CBF2 and CBF3 proteins also include putative nuclear-localization signals and potential acidic activation domains. The CBF2 andCBF3 genes are linked to CBF1,constituting a cluster on the bottom arm of chromosome IV. The high level of similarity among the t…
A genetic approach to dissect the role of prefoldins in Arabidopsis
SummaryThe prefoldin complex (PFDc) was identified in humans as co-chaperone of the cytosolic chaperonin TRiC/CCT. It is conserved in eukaryotes and is composed of subunits PFD1 to 6. PFDc-TRiC/CCT operates folding actin and tubulins. In addition to this function, PFDs participate in a wide range of cellular processes, both in the cytoplasm and in the nucleus, and their malfunction cause developmental alterations and disease in animals, and altered growth and environmental responses in yeast and plants. Genetic analyses in yeast indicate that not all functions performed by PFDs require the participation of the canonical complex. The lack of systematic genetic analyses in higher eukaryotes m…
Integration of polyamins in the cold acclimation response
8 páginas, 1 figura, 3 tablas -- PAGS nros. 31-38