Accession Number:

ADA271908

Title:

Characterization of Light and Nitrogen Regulated Gene Expression Pathways in Marine Diatoms

Descriptive Note:

Final technical rept. 17 Jun 92-31 Dec 92,

Corporate Author:

CALIFORNIA UNIV LOS ANGELES

Personal Author(s):

Report Date:

1992-12-31

Pagination or Media Count:

5.0

Abstract:

To delineate pathways for the modulation of gene expression by marine diatoms in response to environmental cues. To elucidate the extent of light- and nitrogen-dependent transcriptional and translational control on the expression of nitrate reductase NR, glutamine synthetase GS and the fucoxanthin- chlorophyll ac pigment protein FCP. The products of these genes determine the nitrogen assimilation and light harvesting capacity of marine diatoms and play a central role in the coupling of carbon and nitrogen metabolism in these cells. To characterize the genomic organization and promoter structure of NR, GS, and FCP for eventual identification of light- and nitrogen-responsive promoter elements.

Subject Categories:

  • Biochemistry
  • Genetic Engineering and Molecular Biology
  • Biological Oceanography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE