Rapid transcriptome responses of maize (Zea mays) to UV-B in irradiated and shielded tissues.

ABSTRACT:

Background

Depletion of stratospheric ozone has raised terrestrial levels of ultraviolet-B radiation (UV-B), an environmental change linked to an increased risk of skin cancer and with potentially deleterious consequences for plants. To better understand the processes of UV-B acclimation that result in altered plant morphology and physiology, we investigated gene expression in different organs of maize at several UV-B fluence rates and exposure times.

Results

Microarray hybridization was used to assess UV-B responses in directly exposed maize organs and organs shielded by a plastic that absorbs UV-B. After 8 hours of high UV-B, the abundance of 347 transcripts was altered: 285 were increased significantly in at least one organ and 80 were downregulated. More transcript chang

SUBMITTER: Casati P 

PROVIDER: S-EPMC395766 | biostudies-literature | 2004

REPOSITORIES: biostudies-literature