Shared up-regulation and contrasting down-regulation of gene expression distinguish desiccation-tolerant from intolerant green algae.

ABSTRACT: Among green plants, desiccation tolerance is common in seeds and spores but rare in leaves and other vegetative green tissues. Over the last two decades, genes have been identified whose expression is induced by desiccation in diverse, desiccation-tolerant (DT) taxa, including, e.g., late embryogenesis abundant proteins (LEA) and reactive oxygen species scavengers. This up-regulation is observed in DT resurrection plants, mosses, and green algae most closely related to these Embryophytes. Here we test whether this same suite of protective genes is up-regulated during desiccation in even more distantly related DT green algae, and, importantly, whether that up-regulation is unique to DT algae or also occurs in a desiccation-intolerant relative. We used three closely related aquatic and deser

SUBMITTER: Peredo EL 

PROVIDER: S-EPMC7382218 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature