Arabidopsis phosphatase under-producer mutants pup1 and pup3 contain mutations in the AtPAP10 and AtPAP26 genes.

ABSTRACT: Production and secretion of acid phosphatases (APases) is a hallmark adaptive response of plants to phosphate (Pi) deprivation. Researchers have long hypothesized that Pi starvation-induced APases are involved in internal Pi recycling and remobilization as well as in external Pi utilization. Two phosphatase under-producer (pup) mutants, pup1 and pup3, were previously isolated in Arabidopsis. Characterization of these 2 pup mutants provided the first genetic evidence for the above hypothesis. To date, however, the molecular lesions in these 2 pup mutants remain unknown. In this work, we demonstrate that pup1 and pup3 contain point mutations in the Arabidopsis purple acid phosphatase gene AtPAP10 and AtPAP26, respectively. Our results answer a long-standing question about the molecular ident

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC4623333 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature