Regulation of α-expansins genes in Arabidopsis thaliana seeds during post-osmopriming germination.

ABSTRACT: Seed osmopriming is a pre-sowing treatment that involves limitation of the seed water imbibition, so that pre-germinative metabolic activities proceed without radicular protrusion. This technique is used for improving germination rate, uniformity of seedling growth and hastening the time to start germination. In Arabidopsis thaliana, seed germination has been associated with the induction of enzymes involved in cell wall modifications, such as expansins. The α-expansins (EXPAs) are involved in cell wall relaxation and extension during seed germination. We used online tools to identify AtEXPA genes with preferential expression during seed germination and RT-qPCR to study the expression of five EXPA genes at different germination stages of non-primed and osmoprimed seeds. In si

SUBMITTER: Ferreira Ribas A 

PROVIDER: S-EPMC6419704 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature